Literature DB >> 17832466

Glacial-postglacial temperature difference deduced from aspartic Acid racemization in fossil bones.

R A Schroeder, J L Bada.   

Abstract

The magnitude of the temperature increase that occurred in continental regions following the termination of the last glaciation has been determined from the degree of racemization of aspartic acid in fossil bones of known age. The results indicate an increase of 4 degrees C for the Mediterranean coast and 5 degrees to 6 degrees C for East Africa. These estimates are believed to be reliable within 1 degrees C.

Entities:  

Year:  1973        PMID： 17832466     DOI： 10.1126/science.182.4111.479

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  5 in total

1.  Differences in the D/L aspartic acid ratios in dentin among different types of teeth from the same individual and estimated age.

Authors:  S Ohtani; R Ito; T Yamamoto
Journal:  Int J Legal Med       Date:  2003-03-21       Impact factor: 2.686

Review 2.  A critical evaluation of the application of amino acid racemization to geochronology and geothermometry.

Authors:  K M Williams; G G Smith
Journal:  Orig Life       Date:  1977-08

3.  Conservation of optical purity of amino acids: a principal problem in biochemical and proto-biochemical systems.

Authors:  K Dose
Journal:  Orig Life       Date:  1981 Mar-Jun

4.  The radioracemization of amino acids by ionizing radiation: geochemical and cosmochemical implications.

Authors:  W A Bonner; N E Blair; R M Lemmon
Journal:  Orig Life       Date:  1979-09

5.  Aspartic acid racemization in tooth enamel from living humans.

Authors:  P M Helfman; J L Bada
Journal:  Proc Natl Acad Sci U S A       Date:  1975-08       Impact factor: 11.205
  5 in total

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