Organic Matter Analysis of the Hyper-Arid Peruvian Desert in comparison to other Hyper-Arid Environments

Details Organic Matter Analysis of the Hyper-Arid Peruvian Desert in comparison to other Hyper-Arid Environments Organic Matter Analysis of the Hyper-Arid Peruvian Desert in comparison to other Hyper-Arid Environments

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufm.p51d0949v&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #P51D-0949

Biology

5200 Planetary Sciences: Astrobiology, 6225 Mars

Scientific paper

The Peruvian Desert is located along the Pacific coast of southern Peru and is a continuation of the Atacama Desert in Chile. The Peruvian Desert at the Pampas of La Joya has extreme environmental conditions, such as hyperaridity, and a complete absence of macroscopic life. La Joya contains volcanic soils with the presence of magnetite and quartz. Furthermore, the El Niño phenomena, centralized directly off the coast-line near La Joya, provides stronger climactic effects on this desert, resulting in higher levels of precipitation which should allow for the development of microscopic life. Taking into account that life is based on carbon, here we search for relationships between soil organic matter detected by oxidation versus pyrolisis (pyr-GC-MS) techniques. Our preliminary results showed similar levels of organic compounds to Yungay, the hyper-arid core of the Atacama Desert, similar levels of organic compounds to the Antarctic Dry Valleys, and direct correlation between oxidation and pyrolitic techniques.

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