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Showing results for tags 'geologic age'.
Found 3 results
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We recently had limestone tile flooring installed and selected a sample labeled "Fossil Tile". The wrapped packages indicated country of origin as Turkey. I have studied numerous features in the tile and believe they include belemnites or cephalopods, but there are irregular masses with bumpy linings that I'm unsure about. I'm interested in learning what region the stone may have come from, the geologic age and especially, the identification or possible identity of the "fossils". I've inspected broken tile edges for surface features that might tell more than the polished cross-sections, but found nothing thus far.
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Hello, In correspondence with a local geologist, he mentioned a Mica layer that is found in a particular strata locally. The same layer is evident in what seems like 30-40 miles of distance between locations. He said if it could ever get tested and determined as an ashfall, then a very accurate date could be obtained. The question is, are there any testing facilities in the United States for this sort of thing?
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- ashfall
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I'm wondering if anyone can provide a source or two on the geologic formation of "wonderstone" from Tooele County, Utah. I know it is volcanic in origin, but what formation and what geologic age? What overlies/underlies this rock? Do we know where and which volcano is responsible? Have fossils ever been found in there before? Google has not been excessively helpful in searching for this information.
