NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fossil Microorganisms in ArchaeanAncient 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.
Document ID
20060048276
Document Type
Conference Paper
Authors
Astafleva, Marina
(Academy of Sciences (USSR) Moscow, Russian Federation)
Hoover, Richard
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Rozanov, Alexei
(Academy of Sciences (USSR) Moscow, Russian Federation)
Vrevskiy, A.
(Academy of Sciences (USSR) Moscow, Russian Federation)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Geosciences (General)
Meeting Information
SPIE Optics and Photonics Symposium 2006: Instruments Methods and Missions for Astrobiology IX(San Diego, CA)
Distribution Limits
Public
Copyright
Other
No Preview Available