In “Science page update / desert varnish on meteorites” at
http://six.pairlist.net/pipermail/meteorite-list/2010-March/061506.html ,
Sonny wrote:
“I have added a thin section picture of desert varnish
on my web page. This picture was taken at ASU of a
meteorite displaying desert varnish
Many of the questions posed to this list about desert varnish can be
found in my recent paper on varnish
Nanometer-scale complexity, growth, and diagenesis in desert varnish
(2008) Geology, vol. 36, 215-218.
Unfortunately, I do not have permission (from the publisher) to post a
pdf copy
Re: [meteorite-list] desert varnish -- yes, I'd like a copy, thanks --
within 160 km of Santa Fe, NM, for a year I've noticed thick surface layers,
black, red, brown, white: Laurence Garvie: Rich Murray 2010.03.01
Commonly, there are many scattered broken solid quartz rocks that
have outer
Laurence,
I would love to read this.
As a regular hunter in AZ. I have learned to check for this with Peroxide and
peroxide does nothing to real fusion crust but, I would love to know more about
it. I love Steve and Geoff on the show but, your part is always the anxiously
awaited climax. .
-
Desert Varnish formation
http://waynesword.palomar.edu/ploct97.htm
One of the most remarkable biogeochemical phenomena in arid desert regions
of the world is desert varnish. Although it may be only a hundredth of a
Dear Kevin;
YIKES! I found the Waynesword site just yesterday.
His information on early Earth and the connection with meteorites seems
really interesting. His other surf able information to living
stromatolites makes me think that there is some slim chance that recent
(maybe a few million
Hi,
Is there anyone out there who is an expert on Desert Varnish. How
long it takes to form and what causes it? Is it typical in all desert
environments?
Thanks,
Stan Szalkowski
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a stigma which can be
detrimental to the careers of some researchers.
See also:
http://www.ghg.net/gpenning/ff13.htm
http://www.tec.army.mil/research/products/desert_guide/terrain/desert/lsmsheet/lsvarn.htm
Bob V.
--
[meteorite-list] Desert
Hi list!
Hope all is well for list members.
Quick question. Does anyone know how fast desert varnish adheres to a freshly
fallen meteorite? (days, months, years?) I'm sure there are a number of
variables, such as Western United States dry lake beds -vs- NWA's. Is there a
formula for reaching
I've noticed that freshly uncoverd granite boulders
start to varnish in 3 to 5 years.
Rex
Hello all,
I believe the subject of desert varnish came up last week. Coincidently, I
just received my copy of Geotimes which contains an article on the subject.
The link to the article follows:
http://www.geotimes.org/current/NN_rocks.html?sid=8be9de0117ecc48d30ec6a4053
5fcfd0
The bottom line,
Greetings everyone!
I was recently doing a bit of research on desert varnish on boulders
meteorites and found this information regarding a possible organic origin:
['... desert varnish is formed by colonies of microscopis bacteria living
on the rock surface for thousands of years' (Ronald Dorn
; desert crust;
desert rind; varnish.
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, April 05, 2002 2:28 PM
Subject: [meteorite-list] Desert varnish
Greetings everyone!
I was recently doing a bit of research on desert varnish on boulders
meteorites
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