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Weathering

Weathering

(Science: geology) The action of the elements on a rock in altering its colour, texture, or composition, or in rounding off its edges. yup yup yup i no.....!!!!!


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Experiment on weathering

Hello, I want to do an experiment on weathering? It will have 3 types of weathering. They are mechanical, chemical, and biological. It might be weathering on a rock or a crystal. Then I want to see how much phosphates come out. Is this experiment ...

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by ArcaneIllumination
Sun Dec 09, 2012 5:25 pm
 
Forum: Ecology
Topic: Experiment on weathering
Replies: 1
Views: 1571

Re: Theories - Origin of Life

... importantly, how did the oxygen produced by photosynthesis get incorporated into the continents? This could not have occurred by direct oxidative weathering because that is contradicted by the persistence of detrital uraninite and pyrite in Archean sediments. Science, Kasting, Vol. 293, 3 August ...

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by scottie
Wed Oct 05, 2011 10:11 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 888528

Re: Any other explanations other than Mutation?

... of large animals get fossilized because to fossilize something it has to be separated from the atmosphere so as to eliminate oxidation and other weathering; landslides, ashes from volcanoes are good fossilizing events. An organism with an disadvantageous trait will die and not be able to pass ...

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by futurezoologist
Sun May 31, 2009 1:42 pm
 
Forum: Evolution
Topic: Any other explanations other than Mutation?
Replies: 6
Views: 11793

Anthropogenic global warming?

... Proceedings of the National Academy of Sciences 99, no. 7 (2002): 4167-4171. Berner, R. A. "The Rise of Plants and their Effect on Weathering and Atmospheric CO2." Science 276 (1997): 544-547. Suggests evolution of rooted vascular plants caused Devonian (~400 Ma) CO2 draw down ...

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by blcr11
Tue May 29, 2007 8:17 pm
 
Forum: Ecology
Topic: Anthropogenic global warming?
Replies: 188
Views: 147949

frozen water expansion

The weathering process would be hampered. There would be no frost-wedging, therefore mountains would likely be higher than they are now. Trans-atlantic travel would be safer, no more icebergs running down south into the shipping ...

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by JagaRundi
Wed Oct 11, 2006 8:24 pm
 
Forum: General Discussion
Topic: frozen water expansion
Replies: 11
Views: 6131
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