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wolftrax
I then contacted the Natural Resource Conservation Service, where I was able to correspond with James Komar, Area Resource Soil Scientist for the USDA-NRCS. He sent me a soil description for the OM-Bluecreek Mt. areas, and they are attached. Onion Mountain is in unit 404, and Bluecreek Mt. is in unit 320. I am also quoting the description of OM here in this quote:

QUOTE
404 - Oragran family-Witchpec family, moderately deep-Lithic Haploxeralfs,
ultramafic complex, 50 to 70 percent slopes.
Composition
° Oragran family and similar soils: 30 percent of the unit
° Weitchpec family, moderately deep and similar soils: 25 percent of the unit
° Lithic Haploxeralfs, ultramafic and similar soils: 15 percent of the unit
° Oragran and similar soils: 10 percent of the unit
° Unnamed and similar soils: 10 percent of the unit
° Unnamed, frigid serpentinitic and similar soils: 10 percent of the unit
Setting
Landform(s): mountains, mountains Slope gradient: 50 to 70 percent
Elevation: 400 to 4501 feet Air temperature: 48 to 52 ºF
Precipitation: 90 to 116 inches Frost-free period: 150 to 250 days
Characteristics of Oragran family and similar soils
Average total avail. water in top five feet (in.): 1.3 Soil loss tolerance (T factor): 1
Available water capacity class: Very low Wind erodibility group (WEG): 7
Parent material: residuum weathered from serpentinite Wind erodibility index (WEI): 38
Restrictive feature(s): bedrock (lithic) at 12 to 16 inches Land capability class, irrigated:
Depth to Water table: none within the soil profile Land capability class, non-irrigated: 7e
Drainage class: well drained Hydric soil: no
Flooding hazard: none Hydrologic group: B
Ponding hazard: none Runoff class: high
Potential frost action: low
Saturated hydraulic conductivity class: Moderately High
Representative soil profile: Available Water SAR
Capacity (inches) pH Salinity SAR
Horizon -- Depth (inches) Texture
H1 -- 0 to 2 Very stony silt loam 0.2 to 0.2 5.6 to 6.0 0 - 0 0 - 0
H2 -- 2 to 12 Gravelly silt loam 1.0 to 1.2 5.6 to 6.0 0 - 0 0 - 0
H2 -- 2 to 12 Stony silt loam 1.0 to 1.2 5.6 to 6.0 0 - 0 0 - 0
H3 -- 12 to 16 Unweathered 0 - 0 0 - 0
bedrock
Ecological class(es):
Tabular Data Version: 1
Tabular Data Version Date: 06/28/2006 Page 11


Brief Soil Descriptions (CA)
Six Rivers National Forest Area, California
[404 - Oragran family-Witchpec family, moderately deep-Lithic Haploxeralfs, ultramafic complex, 50 to 70 percent slopes.]
Characteristics of Weitchpec family, moderately deep and similar soils
Average total avail. water in top five feet (in.): 3.3 Soil loss tolerance (T factor): 2
Available water capacity class: Low Wind erodibility group (WEG): 7
Parent material: residuum weathered from serpentinite Wind erodibility index (WEI): 38
Restrictive feature(s): bedrock (lithic) at 35 to 39 inches Land capability class, irrigated:
Depth to Water table: none within the soil profile Land capability class, non-irrigated: 6e
Drainage class: well drained Hydric soil: no
Flooding hazard: none Hydrologic group: B
Ponding hazard: none Runoff class: high
Potential frost action: low
Saturated hydraulic conductivity class: Moderately High
Representative soil profile: Available Water SAR
Capacity (inches) pH Salinity SAR
Horizon -- Depth (inches) Texture
H1 -- 0 to 8 Gravelly silt loam 0.8 to 0.9 5.6 to 6.0 0 - 0 0 - 0
H2 -- 8 to 35 Very gravelly silt loam 2.2 to 2.7 5.6 to 6.0 0 - 0 0 - 0
H3 -- 35 to 39 Unweathered 0 - 0 0 - 0
bedrock
Ecological class(es):
Characteristics of Lithic Haploxeralfs, ultramafic and similar soils
Average total avail. water in top five feet (in.): 2.6 Soil loss tolerance (T factor): 1
Available water capacity class: Very low Wind erodibility group (WEG): 7
Parent material: residuum weathered from serpentinite Wind erodibility index (WEI): 38
Restrictive feature(s): bedrock (lithic) at 19 to 23 inches Land capability class, irrigated:
Depth to Water table: none within the soil profile Land capability class, non-irrigated: 7e
Drainage class: well drained Hydric soil: no
Flooding hazard: none Hydrologic group: C
Ponding hazard: none Runoff class: very high
Potential frost action: low
Saturated hydraulic conductivity class: Moderately High
Representative soil profile: Available Water SAR
Capacity (inches) pH Salinity SAR
Horizon -- Depth (inches) Texture
H1 -- 0 to 4 Gravelly loam 0.5 to 0.6 5.6 to 6.5 0 - 0 0 - 0
H2 -- 4 to 19 Gravelly clay loam 1.9 to 2.2 6.1 to 7.3 0 - 0 0 - 0
H3 -- 19 to 23 Unweathered 0 - 0 0 - 0
bedrock
Ecological class(es):
Tabular Data Version: 1
Tabular Data Version Date: 06/28/2006 Page 12
wolftrax
Well, what does this all mean? Was there volcanic ash present in the soil in which John Green casted CA-19? Could the volcanic material that is on OM have been ground and introduced into the soil by the road crew? Tube has also experimented with other substrates that had clay and silt in them, from the Duwamish river, if I recall correctly. What effect would the substrate from this road have on plaster of paris? I asked James Komar for his opinion, and sent a link to Tube's website:
http://www.orgoneresearch.com/ridges_and_furrows.htm

As well as this color photo from the OM trackway:

This was James Komar's response, used with permisssion:

QUOTE( James Komar)
The CA Geology map you passed along suggests ultramafic rocks in the area under Onion Mtn, and surrounded by mesozoic sedimentary and volcanic rocks that were strongly metamorphosed (changed by pressure/temperature). This is consistent with the soils mapping of the area. Working backwards in terms of the apparent geology of the area: serpintinite is a chemically hydrated form of ultramafic rock. Ultramafic rocks include the peridotite family of rocks as well. Neither perodotite (uncommon in it's virgin form) nor serpentinite represent the same chemical structure from the igneous material from which they were formed. In other words, they are of igneous origin, volcanic in the sense that they originate from a process of magmafication, but by intrusive (internal to the earths crust) rather than extrusive (external to the earth's crust, such as ash or volcanic flows or ejecta). Ultramafic rocks are no longer chemically similar to igneous or volcanic rock. Neither peridotite nor serpentinite are high in silica; actually, they are relatively "silica-poor". From what I can observe from the August 1967 photo of a "footprint" on an unpaved road surface located near Onion Mtn., and assuming the colors are representative, it appears the fine, light brownish grey powdery material on the road surface has high silt or clay content, and shares a dry color consistent with my recollection of material either of serpentinitic, or alternatively but unlikely, marine sedimentary origins. Of course, with the level of information provided me I would not rule out anything; but, the Onion Mtn. area is not a location where significant ashfall deposits are known to have occurred.

-----------------------------------------------------------

One other note: following along the links in Matt's website, re: the link to the soil sampling - the individual who went and sampled soils in the Onion Creek area clearly sampled native forest soil from a relatively intact area, as opposed to sampling road dust which is the substrate to be compared against. That's why the organic contents were so high, and the colors redder.

Lastly, seems like Matt lays out a pretty solid empirical case addressing the "dermal ridges".

You may quote me as long as you include my qualifiers

Good luck to you all in your endeavors. Be sure to come to Willow Creek, CA sometime to visit the local Bigfoot museum!

Jim

+++++++++++++++++++++++++++++++++++++++++++

James Komar
Area Resource Soil Scientist
USDA-NRCS
Red Bluff Area Office
wolftrax
And, indeed, if we compare the soil present at the OM site, and the soil that was sent to Melissa and Tube, they are different substrates. Therefore, Melissa's experiment was not an accurate replication of the casting of CA-19.
Hairy Man
So you are saying that the soil sample that tube and Melissa were sent isn't any good because it didn't come from the center of the road, vs. it came from the side of the road? Road dust would have been more representative? Or would digging deep into the road had been better? If needed, with these qualifiers, maybe additional soil can be obtained.

But...I guess the question is, since James clearly states that OM soil doesn't have ash in it (but is a finer type of something), shouldn't experiments be conducted on the closest soil to the original? Or is it more of the condition of the soil vs. type?

QUOTE(wolftrax @ Feb 6 2007, 08:24 PM) *
And, indeed, if we compare the soil present at the OM site, and the soil that was sent to Melissa and Tube, they are different substrates. Therefore, Melissa's experiment was not an accurate replication of the casting of CA-19.


But then, neither was tube's because he used Volcanic ash and no ash is present in the OM soil.
wolftrax
I suppose the closest you could come to using the soil is having a road crew come through in a 100 degree August day, clear away the top soil and find that color of substrate. The substrates are different. James Komar also stated;

QUOTE
Lastly, seems like Matt lays out a pretty solid empirical case addressing the "dermal ridges".
Hairy Man
I doubt there is a whole lot of road crew action going on anywhere anytime soon...the FS road budget was slashed in half for the coming fiscal year.

I'm not suggesting that tubes methodology is faulty (if you will look back at my previous posts you will note that I have always stated that the fact that he can produce dermal ridges, regardless of the soil type, is extremely significant). My point is that you stated that "Therefore, Melissa's experiment was not an accurate replication of the casting of CA-19" but since tube used volcanic ash in his experiments (and ash is not present on OM), tube's experiments are also not an accurate replication of the casting of CA-19. You can't have it both ways. It doesn't change the fact that tube produced dermal ridges...but fair is fair.
Blackdog
I guess what I'm having trouble wrapping my little mind around (and I admit I haven't been following it as closely as maybe I should) is that, like HM said, Tube's work seems to show that casting artifacts can be mistaken for dermal ridges, and (correct me if I'm wrong) Melissa's has not. Is that correct? It sounds like there was a great deal of misunderstanding and a lack of clarity on the type of materials being used. It sounds like apples and oranges to me.

That being said I don't think that there is any dispute that casting artifacts that resemble dermal ridges are possible and I don't know why CA-19 is held as the Holy Grail of casts when so many others (hundreds, thousands?) exist. Aren't there any others that show alleged dermals? Or is this all about just one cast? If so we just need to move on because' regardless, that just ain't enough.
Teresa
After reading all of that I have a headache. Thanks for summing that all up HM!

You make a good point BD.
Hairy Man
Set CA-19 on the ground and back away s l o w l y....that way, no one gets hurt...and whatever you do, don't look it in the eye, it only makes it mad....
wolftrax
QUOTE(Hairy Man @ Feb 6 2007, 11:50 PM) *
I doubt there is a whole lot of road crew action going on anywhere anytime soon...the FS road budget was slashed in half for the coming fiscal year.

I'm not suggesting that tubes methodology is faulty (if you will look back at my previous posts you will note that I have always stated that the fact that he can produce dermal ridges, regardless of the soil type, is extremely significant). My point is that you stated that "Therefore, Melissa's experiment was not an accurate replication of the casting of CA-19" but since tube used volcanic ash in his experiments (and ash is not present on OM), tube's experiments are also not an accurate replication of the casting of CA-19. You can't have it both ways. It doesn't change the fact that tube produced dermal ridges...but fair is fair.


Not necessarily. It was thought that after Melissa's experiments that the OM soil does not support casting artifacts, when in fact the use of the organic filled soil from OM did not support casting artifacts. Tube has stated this long ago, that organic material does not support casting artifacts, or hasn't so far in his own experiments. However, substrates such as volcanic ash, silica, and even soil from the Duwamish do support them.

Now this report and James statement state that though volcanic ash isn't known from the mountain, that soil and the report state it did have plenty of volcanic material present. Though the chemical properties are different from volcanic ash, just how that affects casting is unknown, to me at least, but it does give us reason to believe the conditions were there.
Teresa
Did you factor in to Mr. Komar the Spill Magic (or whatever that stuff is called)? Do you know if Tube used that in those particular tests? I'd like to know what Mr. Komar's opinion is on whether that would alter results and if so, how?
Hairy Man
Well, I have to admit...there are too many big words in that report for me to tell what is what, so I'll have to take your word for it. I found the word volcanic, but most of California is volcanic according to the map.

One thing did come out of this, it's now pretty certain that organic soil won't produce casting artifacts (but can they produce dermals?).

I guess Melissa and tube now have some great soil for their garden.....
Teresa
Okay... are you saying that the pottery ash = organic soil and it won't produce artifacts but will produce dermals? What would the point of experimenting with that be in comparison to OM soil if it won't give the same results as OM soil, especially if you want to compare it to an OM cast. Isn't that like comparing apples and oranges?

I don't get it.
Hairy Man
No, pottery ash doesn't equal organic soil. Pottery ash will support casting artifacts, but organic soil won't (because of it's impurities)....except on Tuesday when the moon is full, but then only if I have on my favorite purple shirt. I am fairly certain that organic soil will allow dermals from your foot to be transferred to the soil, and then to a cast, but I may have my blue shirt on and am, therefore, confused.
Teresa


I give up.
wolftrax
QUOTE(ARsquatch @ Feb 7 2007, 12:52 AM) *
Did you factor in to Mr. Komar the Spill Magic (or whatever that stuff is called)? Do you know if Tube used that in those particular tests? I'd like to know what Mr. Komar's opinion is on whether that would alter results and if so, how?

Care to elaborate on this?
Teresa
I will as soon as I find Tube's post with the picture of the carton of that stuff. I'm not sure if he said he used that in that particular experiment or not. I'll get back to you.
Melissa
QUOTE(wolftrax @ Feb 6 2007, 10:24 PM) *
And, indeed, if we compare the soil present at the OM site, and the soil that was sent to Melissa and Tube, they are different substrates. Therefore, Melissa's experiment was not an accurate replication of the casting of CA-19.


Thank you for in a very round about way, admitting there is no Volcanic Ash in the soil of Onion Mountain.

Oh, by the way, all the Volcanic Ash discussion is really a waist of time now - as tube said over the weekend he NEVER used Volcanic Ash.... Now he says he used Pumice, which is clearly not Volcanic Ash. I have said many times all the materials are present in the soil that you would expect after Volcanic Ash has broken down, but there is no Volcanic Ash, but - Tube never said a word about Pumice when he sent me out to find Volcanic Ash.

Once again, Thank you. smile.gif
wolftrax
First of all, volcanic ash fall is not known on OM, it doesn't mean it's not there, as James states he wouldn't rule anything out. Second, the substrate itself is composed of volcanic material. Third, it's already been shown that one of the first sites that sells volcanic ash in your area sells it as "Volcanic ash (pumice)". The majority of the pottery stores I talked to stated it was the same thing. When you call a pottery store you're not dealing with geologists. If you really researched this as much as you claim you would know this.

BTW, Melissa, since you keep emphasizing the difference between pumice and volcanic ash, can you tell us the difference?
Volsquatch
Found this on a Potter's forum:

QUOTE
pumice/volcanic ash
updated tue 26 dec 00
Cindy Strnad on sat 23 dec 00

Hi, Melinda.

Pumice and volcanic ash refer to the same thing. However, ash from one
volcano will differ from that of another. Probably ash from the same
volcano, spewed at different time intervals, will differ quite a lot, as
well. Suppliers don't usually specify the source of their volcanic ash, in
my experience. So, it's always an adventure when you try a recipe with this
particular ingredient.

Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
earthenv@gwtc.net
http://www.earthenvesselssd.com


QUOTE
...Pumice and ash from the same eruption should
be expected to be nearly identical in chemical makeup. The two words describe
different physical properties resulting from just how it ejected the volcano.
The same gasses that create the pourous structure of pumice rock are what can
propel the solids thousands of feet into the air and blast them to tiny bits,
which are then called "ash" as it falls back to earth. So if you know there is
a common source for both the ash and pumice you have access to, you can regard
them as equivalent. ...

Michael McDowell
Whatcom County, WA USA
mmpots@memes.com
http://www2.memes.com/mmpots



Link to original cache(main site seems to be down):

http://209.85.165.104/search?q=cache:hsfpK...;cd=3&gl=us
JayleeD
QUOTE(Melissa)
Now he says he used Pumice, which is clearly not Volcanic Ash.


QUOTE(Cindy Strnad)
Pumice and volcanic ash refer to the same thing.


QUOTE(Michael McDowell)
The same gasses that create the pourous structure of pumice rock are what can
propel the solids thousands of feet into the air and blast them to tiny bits,
which are then called "ash" as it falls back to earth. So if you know there is
a common source for both the ash and pumice you have access to, you can regard
them as equivalent. ...



So pumice and volcanic ash ARE the same thing, just pumice going up and ash coming down, right? Hum, very interesting. Good work finding all these sources folks.
Hairy Man
They must grind the pumice into a powder, because pumice is generally a small, weightless "rock" when you find it in the field (we find pumice in arch sites). When ground, it must then look like ash?
wolftrax
Such as the grinding of the clays, silt, and bedrock by construction equipment when grading a mountain road.
Teresa
Okay, I understand that pumice and ash have the same chemical make-up, however, the difference being the texture of the two with pumice being grainy and ash being much finer and more powdery. What I'd like to know is what the difference in casting the two would be. Could this account for why Tube is getting one result and Melissa another? I couldn't care less about who insulted whom in all of this, I just want to get to the meat and potatoes of how this all compares to the Onion Mountain cast. That is the issue, isn't it?
MooseMan
AR, I just had to say I like yer new avatar! :wink:
wolftrax
The reason Melissa was not able to replicate Tube's results was because she did not follow his method. She did not use volcanic ash (or pumice), she did not use a fake foot or dig the impression using plastic, she used her own foot which introduced her own dermals into the substrate. The use of a fake foot or plastic to make a depression eliminates any dermals introduced into the substrate and therefore the cast, so there is no confusion as to what is really dermals and what is really artifacts.
Teresa
QUOTE(wolftrax @ Feb 7 2007, 12:18 AM) *
Care to elaborate on this?


Okay, I found the post where I read about the Spill Magic. It's on another forum though.

http://forums.randi.org/showthread.php?p=2311201#post2311201

Excerpt from Tube's post on above linked forum dated 3 February, 2007 1:03 p.m.
QUOTE
Indeed, I made a test cast using Spill Magic.

I obtained rather spectacular desiccation ridges in this cast. This would have been about March or April 2005. But by this time I had run out of Spill Magic, I went back to Wal-Mart for more, but they were out.


He then stated that because Wal-Mart was out of the Spill Magic he decided to see what the ingredients were. He said the ingredients were amorphous aluminum silicate "CAS#93763-70-3" on the side of the box of Spill Magic and even shows a picture of the side of the box. It gets a little fuzzy for me from there because he says instead of googling the "CAS#93763-70-3" he must have googled the text instead (I assume he meant amorphous aluminum silicate, but I hate to assume) He stated the first hit he received on what he googled was http://www.reade.com/Products/Minera...silicate).html and in the next paragraph he says "Pumice! Yeah, I didn't have to buy Spill Magic--I could just get some pumice! I can't remember what I did next: I'm sure I searched the Internet for a source of pumice in Seattle. Eventually I found Seattle Pottery Supply. My memory is that they told me that they labeled their pumice as "volcanic ash."

In retrospect, it all makes sense, as Spill Magic works its magic because it is an effective DESICCANT."

Dictionary.com defined desiccant:
des·ic·cant
(děs'ĭ-kənt)
n. A substance, such as calcium oxide or silica gel, that has a high affinity for water and is used as a drying agent.

When I googled "CAS#93763-70-3" the word "Perlite" appears beside the CAS# and it says it's is comprised of "An amorphous material consisting of fused sodium potassium aluminum silicate." I googled the CAS# for pumice on this site: http://www.chemindustry.com/apps/chemicals which is CAS# 1332-09-8 with a chemical analysis as follows: X-ray photoelectron spectroscopy was used for characterizing pumice: it is a natural aluminosilicate with a high percentage of silica (~ 70%), a low surface area (~ 5 m2 g – 1 as determined by the BET method) and a density of 2.3 g cm – 3. It has a fine, porous physical structure which makes the material easy to machine and also determines its abrasive property. In contrast to the zeolites, pumice has an amorphous structure. Apart from its main use in the construction industry, pumice has begun to be of scientific interest when used as a support for metallic catalysts. Core and valence spectra were compared with standard Al2O3 and SiO2. The aim of this study is to examine the surface of this material. ©1995 American Vacuum Society

This begged the question to me why the two CAS numbers were different. The other question is, does it matter? Does any of this matter? How does it apply to the Onion Mountain cast, dermal ridges and artifacts? I've washed my hands with a cleaner containing pumice and it is highly abrasive. I've also had my hands in regular old ash, not volcanic, but regular ash and it is not abrasive but powdery having individual particles that cannot be felt at least by my contact the way pumice can be felt. Perhaps someone who has knowledge of volcanic ash can tell me if it is more like ash or more like pumice in texture.

I would like to ask if Tube got the same or similar results with the pumice that he did with the Spill Magic. I'm sorry if that information is found elsewhere. I'm coming into this late. Tube apparently wanted the pumice and then recommended volcanic ash to Melissa for its drying agent which is the same purpose of the Spill Magic. However, Mr. Komar stated about the Onion Mountain soil in your post:

QUOTE
Neither peridotite nor serpentinite are high in silica; actually, they are relatively "silica-poor".


If the pumice/volcanic ash are silica rich (70%) but Onion Mountain soil is silica poor then why was volcanic ash used in the experiments?

This topic interesting at a base level without all the "who did what to whom." I wish we could discuss the pumice, volcanic ash properties in comparison to the soil of Onion Mountain, the artifacts and dermal ridges without the drama.
RayG
QUOTE(Hairy Man @ Feb 7 2007, 11:35 AM) *
They must grind the pumice into a powder, because pumice is generally a small, weightless "rock" when you find it in the field (we find pumice in arch sites). When ground, it must then look like ash?


That seems to be the case. While volcanic ash and pumice are both ejected from volcanoes, and both have similar (if not identical) chemical compositions, they do differ in their phyisical appearance.



I'm still not certain whether pumicite is merely pumice in powder form, or volcanic ash, or both. huh.gif

QUOTE
In commerce, pumice is the term applied to larger pumice stones, while pumicite consists of fine grains or ash.


RayG
Bitter Monk
It's like meteors, meteorites, and meteoroids. wacko.gif
Teresa
oh that's helpful, thanks for that BM. LOL
Oniomancer
QUOTE
Okay, I understand that pumice and ash have the same chemical make-up, however, the difference being the texture of the two with pumice being grainy and ash being much finer and more powdery.


If they're grinding it, the only size difference would be in how it's milled. They can grind it as fine or as course as they need to depending on what it's used for. If they're using it for glazing, it would have to be quite fine so it will mix with water. Abrasives would necessarily be much courser.
LAL
QUOTE(ARsquatch @ Feb 7 2007, 02:26 PM) *
I would like to ask if Tube got the same or similar results with the pumice that he did with the Spill Magic. I'm sorry if that information is found elsewhere. I'm coming into this late. Tube apparently wanted the pumice and then recommended volcanic ash to Melissa for its drying agent which is the same purpose of the Spill Magic. However, Mr. Komar stated about the Onion Mountain soil in your post:
If the pumice/volcanic ash are silica rich (70%) but Onion Mountain soil is silica poor then why was volcanic ash used in the experiments?


And if it' silica-poor why is he using silica?


http://www.bigfootforums.com/index.php?sho...view=getnewpost
Teresa
Well, I know from what I've read silica acts as a drying agent, but I'm as clueless as you are about the why question. I hope someone can give us some answers to that question.
wolftrax
QUOTE( Arsquatch)
I would like to ask if Tube got the same or similar results with the pumice that he did with the Spill Magic. I'm sorry if that information is found elsewhere. I'm coming into this late. Tube apparently wanted the pumice and then recommended volcanic ash to Melissa for its drying agent which is the same purpose of the Spill Magic. However, Mr. Komar stated about the Onion Mountain soil in your post:
If the pumice/volcanic ash are silica rich (70%) but Onion Mountain soil is silica poor then why was volcanic ash used in the experiments?


Why did Jimmy Chilcutt say the OM cast was casted in volcanic ash?

QUOTE( Jimmy Chilcutt)
http://www.normalpeoplelikeyou.com/article...s/sasquatch.htm
I think one of them...was in volcanic ash dust, and it's the clearest actually, it's the best print. The best cast.

QUOTE
Oh, I might mention too, that Northern California cast, the best one with the clearest dermal ridges-- that's not even a "big" foot, it's just 13 inches. It's from a juvenile animal. If you're gonna hoax a bigfoot, you better make it BIG. 16 or 17 inches.




QUOTE(LAL @ Feb 8 2007, 08:04 AM) *
And if it' silica-poor why is he using silica?
http://www.bigfootforums.com/index.php?sho...view=getnewpost


Why did Lon Erickson get casting artifacts from Loess soil?

QUOTE( Tube)
http://www.bigfootforums.com/index.php?sho...mp;#entry322350
Yesterday Wolftrax and I were invited inside Jeff Meldrum's lab in Pocatello. I was allowed to examine and photograph a number of casts in Dr. Meldrum's collection. These casts were some of those made by John Green on the Blue Creek Mountain - Onion Mountain trackway in August 1967. In addition, I examined and photographed 3 casts Dr. Meldrum made of the foot of a human test subject named Lon Erickson on October 19, 1999. The Erickson test casts were made in fine loess soil native to Idaho. The Erickson test casts are interesting for several reasons as they show both Erickson's own dermal ridges plus casting artifacts. The casts also demonstrate why Meldrum was willing to characterize as a "slam dunk" the interpretation of the Onion Mountain cast textures as being casting artifacts, as it is obvious Meldrum was very close to coming to the same conclusions I eventually came to 6 years later.
Teresa
I don't know anything about Loess soil, so I'm not conversational at all on it. I'd have to do some research on the casting methods, agents used, and a soil analysis like the one you've posted above to be even marginally conversational on Lon Erickson's casting artifacts. I'd like to understand the procedures and results of Melissa and Tube's experiments before entertaining another cast, but that's just me.

Be that as it may, it still doesn't answer the question of why the choice of volcanic ash or more specifically pumice as casting material when Mr. Komar said OM soil is poor in silica. Wolftrax, I appreciate your answers, I'd like to ask a few more questions though. Do you know if Tube consulted with a geologist such as the one you've talked to about the OM soil prior to his experiments? Do you think that would have changed his mind on casting materials? Was Tube's purpose for his experiments to disprove the "dermal ridges" in the OM cast as artifacts? I should have followed this closer back in the day so I'm playing catch up now to try to understand the differences in Melissa's and Tube's experiments.

Thanks!
Hairy Man
QUOTE(wolftrax @ Feb 8 2007, 10:17 AM) *
Why did Jimmy Chilcutt say the OM cast was casted in volcanic ash?


Who knows and who cares. We already know based on your own soil scientists report that there wasn't any volcanic ash present on OM. I walked the same report down to our Soil Scientist and he confirmed what your own guy stated...the soils are formed from weathering of the underlying rock. If there was ash present, it is not listed as part of the soil series description, meaning it would not be a significant part of the soil. Could there be a freak layer of some sort of ash that the road building exposed? Yes, but as my guy stated, it wouldn't be from a volcano, but more likely from a forest fire.

So...unless someone wants to keep fighting this fight, I suggest that everyone involved just accept that the OM soil is not volcanic ash.

Because we seem to be going around in a big huge never-ending circle, let me again reiterate the facts:

1. Tube produced casting artifacts using volcanic ash/pumice/Spill Magic.

2. OM soils is not volcanic ash/pumice/Spill Magic.

3. Although tubes experiments did NOT replicate the conditions of OM, because his experiments produced casting artifacts, it proves it's possible.

4. Melissa has experimented with OM soil that appears to also NOT replicate the conditions of the OM cast (too organic) and while she has been able to cast dermal ridges, she has not produced casting artifacts.

5. SO...while casting artifacts are possible, the mechanisms that cause the artifacts are not clear and need to be more fully experimented with so that we have a better understanding of what conditions produce them...this in turn will help determine what dermal ridges could be solely casting artifacts or might be real.

Crimney! If anyone wants to continue to argue over this, then I would suggest that you only want to argue or else it's solely personal.
wolftrax
Is Loess soil native to Idaho high in silica?

QUOTE
Parent materials moved by wind include sands and silts. Sands moved near the ground surface for relatively short distances. They appear mostly as dunes in rather small areas in southern Idaho along the Snake River and near Bonners Ferry in northern Idaho. Silt, with a small amount of very fine sand and clay, was carried longer distances. This is known as loess. Deposits of loess are extensive in northern Idaho, mostly on the Columbia River basalt plateaus, as well as large areas in the southern part of the state. In more moist areas some of the silts in the loess weathered to clay.

http://imnh.isu.edu/digitalatlas/geo/soils/soils.htm
wolftrax
One of the problems with the Onion Mt. casts is that the location isn't definite. It could have been cast at Onion Mt., or it could've been cast at Blue Creek Mt., or somewhere in between:

QUOTE( DDA)
http://www.bigfootforums.com/index.php?showtopic=9553
I recently paid a visit to John Green, up in Harrison Hotsprings, BC, and he asked me to post some pictures that may never have been seen before of all the tracks found on or between Onion Mt. and Blue Creek Mt. back in 1967. Both Rene Dahinden and John were photographers here, but you can also see the rest of the group has cameras also. These are of course some of the tracks that people have claimed Ray Wallace made. I will point out some interesting features as I go in some of them but first a map showing both mountains and their proximity to Bluff Creek and Notice Creek.


Here is the soil escription of Blue Creek Mt.

QUOTE
Brief Soil Descriptions (CA)
Six Rivers National Forest Area, California
[320 - Hugo family, moderately deep-Maymen family complex, 30 to 50 percent slopes,]
320 - Hugo family, moderately deep-Maymen family complex, 30 to 50 percent
Composition
° Hugo family, moderately deep and similar soils: 65 percent of the unit
° Maymen family and similar soils: 20 percent of the unit
° Rock Outcrop: 10 percent of the unit
° Rubble land: 5 percent of the unit
Setting
Landform(s): mountains, mountains Slope gradient: 30 to 50 percent
Elevation: 404 to 4501 feet Air temperature: 48 to 52 ºF
Precipitation: 50 to 100 inches Frost-free period: 150 to 250 days
Characteristics of Hugo family, moderately deep and similar soils
Average total avail. water in top five feet (in.): 3.1 Soil loss tolerance (T factor): 2
Available water capacity class: Low Wind erodibility group (WEG): 7
Parent material: residuum weathered from igneous and Wind erodibility index (WEI): 38
metamorphic rock Land capability class, irrigated:
Restrictive feature(s): bedrock (lithic) at 24 to 28 inches Land capability class, non-irrigated: 6e
Depth to Water table: none within the soil profile Hydric soil: no
Drainage class: well drained Hydrologic group: B
Flooding hazard: none Runoff class: high
Ponding hazard: none Potential frost action: low
Saturated hydraulic conductivity class: Moderately High
Representative soil profile: Available Water SAR
Capacity (inches) pH Salinity SAR
Horizon -- Depth (inches) Texture
H1 -- 0 to 7 Gravelly loam 0.9 to 1.0 5.0 to 6.0 0 - 0 0 - 0
H2 -- 7 to 18 Gravelly loam 1.3 to 1.5 5.0 to 6.0 0 - 0 0 - 0
H3 -- 18 to 24 Gravelly loam 0.7 to 0.8 4.5 to 5.6 0 - 0 0 - 0
H4 -- 24 to 28 Unweathered 0 - 0 0 - 0
bedrock
Ecological class(es):
Tabular Data Version: 1
Tabular Data Version Date: 06/28/2006 Page 6


Brief Soil Descriptions (CA)
Six Rivers National Forest Area, California
[320 - Hugo family, moderately deep-Maymen family complex, 30 to 50 percent slopes,]
Characteristics of Maymen family and similar soils
Average total avail. water in top five feet (in.): 1.0 Soil loss tolerance (T factor): 1
Available water capacity class: Very low Wind erodibility group (WEG): 7
Parent material: residuum weathered from igneous and Wind erodibility index (WEI): 38
metamorphic rock Land capability class, irrigated:
Restrictive feature(s): bedrock (lithic) at 8 to 12 inches Land capability class, non-irrigated: 6e
Depth to Water table: none within the soil profile Hydric soil: no
Drainage class: somewhat excessively drained Hydrologic group: B
Flooding hazard: none Runoff class: high
Ponding hazard: none Potential frost action: low
Saturated hydraulic conductivity class: Moderately High
Representative soil profile: Available Water SAR
Capacity (inches) pH Salinity SAR
Horizon -- Depth (inches) Texture
H1 -- 0 to 2 Gravelly loam 0.2 to 0.3 5.6 to 6.5 0 - 0 0 - 0
H2 -- 2 to 8 Gravelly loam 0.7 to 0.8 5.5 to 6.0 0 - 0 0 - 0
H3 -- 8 to 12 Unweathered 0 - 0 0 - 0
bedrock
Ecological class(es):


Here we have volcanic material, residuum weathered from igneous and metamorphic rock.
http://en.wikipedia.org/wiki/Igneous_rock
http://en.wikipedia.org/wiki/Metamorphic_rock

Now how high is that in silicates? How similar could this be to volcanic ash?

Or is volcanic ash and silicates even the sole cause of casting artifacts? Tube did get artifacts using soil from the Duwamish river:
http://www.bigfootforums.com/index.php?sho...=cast+artifacts
QUOTE
Fly ash and volcanic ash are not natural soils. Can this effect occur in natural soils? Yes. This is a test cast done in compacted river bank soil I obtained from the Duwamish river here in Seattle. I dried and sifted the soil to replicate the dry and dusty soil conditions found on Onion Mountain in August 1967.


Well, it gets even more complicated. Why? Because of this:
http://www.bigfootforums.com/index.php?sho...mp;#entry322350
QUOTE( DDA)
1. This is not an original plaster of Paris cast made by John Green in 1967 on Onion Mt. CA, or
2. That the cast presented was salted to look original after having been copied in the mold because the original was destroyed.

QUOTE
7. There was a common practice (Cliff Crook, who in fact gave Grover many casts he collected from others did this) to duplicate a cast in fine sand substrate, making it look more like an original cast then a duplicate.


Here we run into a problem. If this wasn't the original cast, and the chain of custody is in question, and the process of using sand or unknown substrates to copy casts was common, then guess what?

Those artifacts could have been introduced at any time and under any circumstances unknown to any of us.
Hairy Man
QUOTE(wolftrax @ Feb 8 2007, 03:30 PM) *
One of the problems with the Onion Mt. casts is that the location isn't definite. It could have been cast at Onion Mt., or it could've been cast at Blue Creek Mt., or somewhere in between:
Here is the soil escription of Blue Creek Mt.
Here we have volcanic material, residuum weathered from igneous and metamorphic rock.
Now how high is that in silicates? How similar could this be to volcanic ash?


When I took the soil descriptions to our soil scientist, I took both 404 and 320 from your attachment from your previous post. The statements he made were about both areas. Volcanic ash isn't present (or at least isn't a factor to be listed in the soil descriptions). There are only three kinds of basic rock in the entire world...igneous, metamorphic, and sedementry - igneous and metamorphic being volcanic in origin. However, neither can erode or weather into volcanic ash. Blue Mountain soils was described as gravely loam; OM as gravely silt loam. So, volcanic ash at OM or BCM isn't an issue. Don't know the answer to silica, but you may be right in your statement that ash and silicates may not even be the cause of casting artifacts...it may be more about method. More testing is needed!

QUOTE(wolftrax @ Feb 8 2007, 03:30 PM) *
Well, it gets even more complicated. Why? Because of this:
http://www.bigfootforums.com/index.php?sho...mp;#entry322350
Here we run into a problem. If this wasn't the original cast, and the chain of custody is in question, and the process of using sand or unknown substrates to copy casts was common, then guess what?

Those artifacts could have been introduced at any time and under any circumstances unknown to any of us.


Now, that is seriously interesting.
wolftrax
I wasn't asking if igneous or metamorphic could erode or weather INTO volcanic ash, I asked if it could have similar properties to volcanic ash, the road crew could've ground it into a powder or gravely form from their construction activity.

As I was told based on the OM description, and after all of this I'd have to fully agree, the only way to absolutely reproduce the conditions of the OM cast would be to do it there, onsite, next to the track, on that day back in August 1967 (or later) on [Onion Mt./Blue Creek Mt./Cliff Crook's sandbox?]. Of course, that would be impossible, and unnecessary.
Blackdog
QUOTE(wolftrax @ Feb 8 2007, 05:30 PM) *
Well, it gets even more complicated. Why? Because of this:
http://www.bigfootforums.com/index.php?sho...mp;#entry322350
Here we run into a problem. If this wasn't the original cast, and the chain of custody is in question, and the process of using sand or unknown substrates to copy casts was common, then guess what?

Those artifacts could have been introduced at any time and under any circumstances unknown to any of us.

Yep that was established at the beginning of this thread too. I addressed that on page two and it was summarily dismissed.
I gess I jest ain't to brite. wacko.gif
wolftrax
Actually, you're very bright, and it shouldn't have been dismissed.
Teresa
It sounds like the OM cast is questionable at best. Is that the best cast to date or are there others of which the chain of custody and methods are documented that experimentation could be based on? It sounds like this has been a waste of time if the OM cast is suspect anyway.

Just my two pennies.
LAL
I hope Jeff Meldrum won't mind if I quote him:

"The cast I received was labelled "Blue Creek Mtn Rd". John Green indicated that it was more likely cast on Onion Mtn. They are virtually contiguous and so the distinction is a fine one only. There were tracks of these same individuals found on both stretches of the road as far as I can determine."
Skeptical Greg
QUOTE(LAL @ Feb 10 2007, 05:29 PM) *
I hope Jeff Meldrum won't mind if I quote him:

"The cast I received was labelled "Blue Creek Mtn Rd". John Green indicated that it was more likely cast on Onion Mtn. They are virtually contiguous and so the distinction is a fine one only. There were tracks of these same individuals found on both stretches of the road as far as I can determine."

How was it determined the tracks were made by the same individual ?
wolftrax
To understand the pattern and process of how casting artifacts are made it is good to start off seeing the same patterns in nature. The pattern of casting artifacts is made up of concentric circles, that is a series of circles originating from a central source. We can see this pattern in a cross section from a tree, but they are better represented by a stone dropping into water. The ripples and waves ring out from the source.
wolftrax
Like the stone hitting the water, the plaster of paris will hit in the middle of the track and sometimes leave a small circle of initial contact. From there the casting material will spread in a circular fashion and leave a large furrow further near the outside of the artifact parameter. Either the thinner ripples will build before this furrow develops or afterwards, I don't know which. These ripples are concentric and wavy, and are what appear to be dermal ridges.

Click thumbnail to view animation:
Teresa
That's a nice presentation Wolftrax. Thanx
wolftrax
For the third part of the research into the casting artifact/dermal ridges issue, I bought a 50 lb. bag of pumice and a 50 lb. bag of Plaster of Paris from Marjon Ceramics in Phoenix, AZ. Over the weekend I experimented to see if indeed pumice could create the casting artifacts.

I put about 2-3 inches of the pumice in a turkey pan, flattened it out, then made a sasquatch foot impression in the middle using a wooden spoon. The entire time I wore latex gloves to insure I wouldn't introduce my own dermal ridges into the substrate. I then mixed the plaster of paris with cold water from the garen hose until it was the consistency of pancake batter and poured it into the track. I waited an hour before I removed it from the substrate, then about 22 hours until I cleaned it with water.

Here is the result:
Blackdog
Question... Could similar artifacts also be introduced by compression and displacement of the casting mixture?
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