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Showing results for tags 'volcanic glass'.
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Hi I need help identifying/confirming some fossils found in Greene county Missouri here are a few. A grub in volcanic glass, a walnut, and a seed beginning to sprout. Could anyone tell me anything about them? I also have some others I need identified. Sorry, I do not have an international ruler. Grub is a half inch long
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Ferrière, L., Crósta, A.P., Wegner, W., Libowitzky, E., Iwashita, F. and Koeberl, C., 2021. Distinguishing volcanic from impact glasses—The case of the Cali glass (Colombia). Geology, 49(12), pp.1421-1425. More papers by Dr. Crosta at: Another paper about impact glasses is: Schultz, P.H., Harris, R.S., Perroud, S., Blanco, N. and Tomlinson, A.J., 2022. Widespread glasses generated by cometary fireballs during the late Pleistocene in the Atacama Desert, Chile. Geology, 50(2), pp.205-209. Yours, Paul H.
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- cali glass
- colombia
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How X-rays helped to solve mystery of floating rocks in the ocean. Experiments at Berkeley Lab show scientists how pumice can remain buoyant for years, UC Berkeley, Berkeley Lab http://newscenter.lbl.gov/2017/05/23/how-x-rays-helped-to-solve-mystery-of-floating-rocks/ https://www.sciencedaily.com/releases/2017/05/170523144110.htm Fauria, K.E., Manga, M. and Wei, Z., 2017. Trapped bubbles keep pumice afloat and gas diffusion makes pumice sink. Earth and Planetary Science Letters, 460, pp. 50-59. http://seismo.berkeley.edu/~manga/fauriaetal2017.pdf Yours, Paul H.
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- gas diffusion
- pumice
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(and 3 more)
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