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Detailed Reference Information |
Shields, G. (1999). Working towards a new stratigraphic calibration scheme for the Neoproterozoic-Cambrian. Eclogae Geologicae Helveticae 92(2): 221-233. |
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Recent improvements in the global correlation of the Neoproterozoic - Cambrian transition have revolutionised our understanding of the early fossil record. Foremost in this revolution has been isotope geochemistry, which provides an independent calibration scale for this time. In this article, global calibration schemes for the terminal Proterozoic are reconsidered. Crossreferencing delta(13)C excursions with the Sr-87/Sr-86 record allows us 1) to correlate Neoproterozoic glaciations and, 2) to establish the rates and nature of early metazoan evolutionary expansion. The creation and continual perfection of such calibration schemes will be of crucial importance to the eventual subdivision and correlation of the Neoproterozoic. |
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BACKGROUND DATA FILES |
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Abstract |
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Table 1 |
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Methods |
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Keywords
precambrian-cambrian, strontium, carbon, isotope stratigraphy, terminal proterozoic, strontium isotope stratigraphy, upper proterozoic successions, glacial facies associations, early animal evolution, carbon-isotope, northwestern canada, integrated chronostratigraphy, siberian platform, south-australia, organic-carbon |
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