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Showing results for tags 'weathering'.
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Hello. I was just curious about what some good techniques for artificially weathering a concretion to get them open are? I've read that the best way to go is to soak, freeze, thaw, and repeat. But none of the sources I've read describes how long that takes. I'm sure it varies from specimen to specimen but is this process weeks, months or years? Does anyone have any other methods or resources about the process? I was thinking of giving it a try and could use some more information on the process. It seems kind of like the old geode gamble in a way. There's no way of knowing what's inside unless
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Jung, P., Baumann, K., et al. (2020). Desert breath—How fog promotes a novel type of soil biocenosis, forming the coastal Atacama Desert’s living skin. Geobiology 18:113–124. PDF Of interest to those who study/like to know more about: - the varied ways in which Earth's biota influences/can influence the surface of our planet - exobiology - Precambrian geology - soil formation and preservation - the interaction between edaphic (geomorphology,precipitation)factors and microbiota - geomorphology - the global carbon and nitrogen cycle - ecosy
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- possible protopedon
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I’m going through my finds from my last hunting trip and came across these brachiopod valves that I picked up. I grabbed them, not because they were the best preserved finds of the day, but because they are the worst. To clarify, I believe the initial preservation wasn’t too bad, but it’s the weathering and subsequent degradation of the fossil that caught my interest. Most valves that I find in the area (Upper Ordovician road cut) are in pieces. I presumed it was because the valves weathered out of the matrix and THEN were washed around by rain run off, trampled, exposed to the eleme
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- degredation
- disintegration
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Weathering of rocks by mosses may explain climate effects during the Late Ordovician, Stockholm University, July 7, 2016 http://www.aces.su.se/weathering-of-rocks-by-mosses-may-explain-climate-change-during-the-late-ordovician/ https://www.sciencedaily.com/releases/2016/07/160707101029.htm The paper is: Porada, P., T. M. Lenton, A. Pohl, B. Weber, L. Mander, Y. Donnadieu, C. Beer, U. Pöschl, A. Kleidon. High potential for weathering and climate effects of non-vascular vegetation in the Late Ordovician. Nature Communications, 2016; 7: 1
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From the album: Fossils in the Wild
Edgar Evins State Park. Ordovician cephalopod fossil weathering out of the rock on the shore of Center Hill Lake, DeKalb County, Tennessee.
