Transition metal sulfides and the origins of metabolism

Article Abstract:

The history of the theory and experimental evidence that the natural catalytic and reactive qualities of transition metal sulfides are linked to primitive metabolism is reviewed. It is concluded that the transition metal sulfide minerals exhibit catalytic qualities for the promotion of reactions that have obvious metabolic utility and therefore, could have provided the primitive Earth with valuable biochemical intermediates.

Analysis, Metabolism, Sulfides, Chemical properties, Hydrothermal systems (Geology)

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Biogeochemistry of glacial landscape systems

Article Abstract:

Biogeochemistry of glacial landscape systems and their impact on biogeochemical cycles was studied. It is indicated that glaciers affect biogeochemistry of landscapes through their sediments and more significantly slit deposited in loess and on continental margins may contribute to carbon cycling thus affecting the biogeochemical cycles.

Environmental aspects, Biogeochemical cycles, Sedimentation analysis, Glacial climates, Chemical weathering

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