Maheshwari, A. ; Sial, A. N. ; Chittora, V. K. ; Bhu, H. (2002) A Positive δ13C excursion in carbonate and organic fractions from the Palaeoproterozoic Aravalli Supergroup, NW India Journalof Asian Earth Sciences, 21 (1). pp. 59-67. ISSN 1367-9120
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S1367-9120(02)00014-7
Abstract
Carbon isotope measurements, carried out on carbonate samples from different localities of the early Proterozoic Aravalli Craton, Western India, yield positive δ 13C values up to +11.20%. PDB. This widespread, isotopically anomalous carbonate province, reported from this subcontinent, coincides with the appearance of stromatolites and the development of 'red beds'. These observations support a global paleoenvironment change during the Paleoproterozoic, as reported from other parts of Gondwanaland including the Kapvaal Craton, Africa, and the Sao Francisco Craton, Brazil.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Paleoproterozoic; Stromatolites; Gondwanaland |
| ID Code: | 86777 |
| Deposited On: | 13 Mar 2012 09:33 |
| Last Modified: | 13 Mar 2012 09:33 |
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