Confined subsurface microbial communities in Cretaceous rock
Article Abstract:
Deep subsurface microbial communities have been discovered in Cretaceous rocks. Drilled samples of Cretaceous Mancos (shale) and Dakota (sandstone) from central New Mexico revealed the presence of microbial communities at sandstone-shale interfaces. Microbial activity in shales appeared to be greatly reduced owing to their restrictive pore size. On the other hand, microbial activity in sandstones was more abundant due to their greater permeability.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Effect of interannual climate variability on carbon storage in Amazonian ecosystems
Article Abstract:
A transient process-based biogeochemical model of terrestrial ecosystems has been used to examine interannual variations of carbon storage in Amazonian ecosystems that are undisturbed, in response to climate variability and rising atmospheric CO(sub2) concentrations. The ecosystems act as a source of carbon during El Nino years and as a carbon sink during other years, with large fluxes.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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