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Showing results for tags 'basalt flows'.
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Hello. I found this in the area of Nornern California's Table Mountain. It's a volcanic plateau basalt messa. The Miocene lava flow that created Table Mountain is named the Love Joy Formation. It was heavily hydro mined for gold and diamonds in the late 1800s. This rock has basalt fragments embedded. Some shiny pulled areas like it's been melted. It's very light .75lb or .34kg feels consistent to pumice. I'm wondering if this is a product of the extinct volcano or some byproduct of the mining the volcanic ash? Thank you for looking!
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I found a number of fossilized bone fragments on the surface in an area of North Western Nevada which the geological map lists as "basalt flows- Pliocene- Holocene. " Any help on identifying what they might be from would be appreciated. I did try the burn test and I could not get it to smoke or have any smell that would indicate that it is not mineralized.
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