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Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months ago“Beaumont Formation
Pleistocene
Pleistocene
clay, siltOn McAllen-Brownsville Sheet (1976) dominantly clay and mud of low permeability. (from Moore and Wermund, 1993a, 1993b): Light- to dark-gray and bluish- to greenish-gray clay and silt, intermixed and interbedded; contains beds and lenses of fine sand, decayed organic matter, and many b…[Read more]
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Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoOops mentioned
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Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoThis is a description of the geology from the area mentioned
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Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoLooks like a sedimentary rock that is calcium carbonate based. You can test this with something like vinegar with 5% acid or CLR. If calcium carbonate based it would fizz. The stronger the acid the more fizz. If it were bone it would not fizz unless coated with a calcium carbonate matrix.
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Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoI can tell you it is not bone. I don’t see any of the normal internal bone structures like osteoclasts or typical bone porosity.
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Kim Pervis became a registered member 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months ago -
Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoI do not see any characteristics that would indicate it is a bone. I don’t see anything like periosteum or osteoclasts or the typical things we see in bone structure. The overall morphology does not have the anatomical shape or details of a bone either other than it being long. It appears to be a concretion. Concretions can contain bone. They f…[Read more]
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Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoI agree with stromatolite. Cool piece. The ones I find are imbedded in chert and I can’t get out in one piece.
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Kim Pervis posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoOne thing about posting fossils is it is very helpful to have a scale and the geological age, formation or area it came from to be able to obtain an ID. I can’t tell if this is 1 cm or 30 cm. This is a cephalopod, but I cannot tell if it is an ammonite or not. There were spiral cephalopods prior to the Cretaceous period that are not a…[Read more]