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Record Details

Record 9 of 5223
Fossil Microorganisms in Archaean
Author and Affiliation:
Astafleva, Marina(Academy of Sciences (USSR), Paleontological Inst., Moscow, Russian Federation)
Hoover, Richard(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Rozanov, Alexei(Academy of Sciences (USSR), Paleontological Inst., Moscow, Russian Federation)
Vrevskiy, A.(Academy of Sciences (USSR), Paleontological Inst., Moscow, Russian Federation)
Abstract: Ancient Archean and Proterozoic rocks are the model objects for investigation of rocks comprising astromaterials. The first of Archean fossil microorganisms from Baltic shield have been reported at the last SPIE Conference in 2005. Since this confeence biomorphic structures have been revealed in Archean rocks of Karelia. It was determined that there are 3 types of such bion structures: 1. structures found in situ, in other words microorganisms even-aged with rock matrix, that is real Archean fossils biomorphic structures, that is to say forms inhabited early formed rocks, and 3. younger than Archean-Protherozoic minerali microorganisms, that is later contamination. We made attempt to differentiate these 3 types of findings and tried to understand of burial of microorganisms. The structures belongs (from our point of view) to the first type, or real Archean, forms were under examination. Practical investigation of ancient microorganisms from Green-Stone-Belt of Northern Karelia turns to be very perspective. It shows that even in such ancient time as Archean ancient diverse world existed. Moreover probably such relatively highly organized cyanobacteria and perhaps eukaryotic formes existed in Archean world.
Publication Date: Jan 01, 2006
Document ID:
20060048276
(Acquired Oct 16, 2006)
Subject Category: GEOSCIENCES (GENERAL)
Document Type: Conference Paper
Meeting Information: SPIE Optics and Photonics Symposium 2006: Instruments Methods and Missions for Astrobiology IX; 13-17 Aug. 2006; San Diego, CA; United States
Meeting Sponsor: International Society for Optical Engineering; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: FOSSILS; MICROORGANISMS; PRECAMBRIAN PERIOD; ROCKS; GEOLOGY; BALTIC SHIELD (EUROPE); EUKARYOTES; BACTERIA; CONTAMINATION
Availability Source: Other Sources
Availability Notes: Abstract Only
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