I thought for sure it was a bison coprolite.... :+)
Audrey
Audrey L. Barnhart
Curator
Fort Union Trading Post NHS
15550 Hwy 1804
Williston, ND 58801
(701)-572-9083
"Jay R. Cordeiro"
<Jay.Cordeiro at umb
.edu> To
Sent by: <e_nunan at yahoo.com>,
owner-nhcoll-l at li <nhcoll-l at lists.yale.edu>
sts.yale.edu cc
Subject
03/14/2012 12:33 [NHCOLL-L:5895] RE: Geology
PM specimen identification
Please respond to
Jay.Cordeiro at umb.
edu
It is my understanding that fulgurite has a hollow core and sandstone does
not. I am betting on sandstone, as well.
Jay Cordeiro
From: owner-nhcoll-l at lists.yale.edu [mailto:owner-nhcoll-l at lists.yale.edu]
On Behalf Of Elizabeth Nunan
Sent: Wednesday, March 14, 2012 12:20 PM
To: nhcoll-l at lists.yale.edu
Subject: [NHCOLL-L:5893] RE: Geology specimen identification
I also ran it by our geologists/mineralogists and got the following:
"looks like sandstone, or a concretion of some sort"
"It looks comprised of many layers indicative of a sedimentary rock or a
volcanic rock. Many processes that operate to form sedimentary rocks also
operate to form volcanic rocks. It can be tricky to tell the difference
between the two without a thin section. "
Elizabeth Nunan
Associate Conservator
Natural Science Conservation
American Museum of Natural History
212.313.7532
--- On Wed, 3/14/12, Shelton, Sally Y. <Sally.Shelton at sdsmt.edu> wrote:
From: Shelton, Sally Y. <Sally.Shelton at sdsmt.edu>
Subject: [NHCOLL-L:5890] RE: Geology specimen identification
To: "AshleyH at cctexas.com" <AshleyH at cctexas.com>, "nhcoll-l at lists.yale.edu"
<nhcoll-l at lists.yale.edu>
Date: Wednesday, March 14, 2012, 8:52 AM
I ran this past one of our geologists and received this response:
From: Fox, James E.
Sent: Tuesday, March 13, 2012 7:31 PM
To: Shelton, Sally Y.
Subject: RE: Geology specimen identification
Hi Sally,
Greetings from El Paso.. The photo looks like "locally" cemented layers of
beach sandstone...the surrounding sands were not cemented and thus easily
eroded away. Localized cementation such as this is not that uncommon.
Jim Fox
Sally Y. Shelton, Collections Manager and Faculty Instructor
Museum of Geology and Paleontology Research Laboratory
South Dakota School of Mines and Technology
501 E. St. Joseph
Rapid City, SD 57701
Sally.Shelton at sdsmt.edu
605.394.2487
From: owner-nhcoll-l at lists.yale.edu [mailto:owner-nhcoll-l at lists.yale.edu]
On Behalf Of Ashley Henderson
Sent: Tuesday, March 13, 2012 3:53 PM
To: nhcoll-l at lists.yale.edu
Subject: [NHCOLL-L:5889] Geology specimen identification
Dear list,
We had a woman offer a donation which she says a geologist identified as a
fulgurite. I have attached an image of the specimen. Our only staff
member with a small background in geology says this is not a fulgurite and
it indeed does not match any image or description of one that we can find.
However, she cannot identify what it actually is. Can anyone out there
identify this specimen. It was found on a beach, partly covered in sand.
Thanks in advance for any information.
Best Regards,
Ashley
Ashley Henderson
Collection Manager
Corpus Christi Museum
of Science and History
361-826-4659
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