Document Detail


A critical evaluation of the application of amino acid racemization to geochronology and geothermometry.
MedLine Citation:
PMID:  335314     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this review we have critically evaluated the application of the diagenetic racemization of amino acids to geochronology and geothermometry. Although there has been enthusiastic support given to this new method, it is our opinion that recent developments suggest a more cautious approach. We have discussed the pitfalls and inhereent complications, while outlining the advances which have been accomplished. We conclude that this is an innovative approach which will add valuable information to the scientific literature. However, since our fundamental understanding of diagnetic racemization is still limited, many of the age and paleotemperature estimates which have been assigned to fossil specimens may be unreliable.
Authors:
K M Williams; G G Smith
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Review    
Journal Detail:
Title:  Origins of life     Volume:  8     ISSN:  0302-1688     ISO Abbreviation:  Orig. Life     Publication Date:  1977 Aug 
Date Detail:
Created Date:  1977-12-29     Completed Date:  1977-12-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0420542     Medline TA:  Orig Life     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  91-144     Citation Subset:  IM; S    
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MeSH Terms
Descriptor/Qualifier:
Amino Acids* / analysis,  isolation & purification
Asparagine / metabolism
Bacteria / metabolism
Bone and Bones / analysis
Chemical Phenomena
Chemistry
Chronology as Topic*
Collagen / analysis
Fossils*
Geological Phenomena
Geology*
Glutamine / metabolism
Hydrolysis
Isoleucine / metabolism
Kinetics
Minerals / analysis
Paleontology*
Seawater / analysis
Temperature*
Tooth / analysis
Water / analysis
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Minerals; 56-85-9/Glutamine; 7006-34-0/Asparagine; 73-32-5/Isoleucine; 7732-18-5/Water; 9007-34-5/Collagen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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