Mathematics – Logic
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988gecoa..52..259d&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 52, Issue 2, pp.259-263
Mathematics
Logic
1
Scientific paper
Normal marine sedimentary rocks of Middle Cambrian, Floran-Undillan, age from the southern Georgina Basin have pyrite S /organic C ratios with a mean value of 0.65 and show a significant positive correlation with an extension of the line of best fit through zero. The S / C ratio of 0.65 determined in this study is close to the mean ratio for all Cambrian sediments of 0.7, but differs markedly from the recently reported S / C ratio of 2 for normal marine early Palaeozoic rocks mainly from the United Kingdom. The variations shown by these figures indicate that if the oxidation state of the crust-ocean-atmosphere over geological time is to be fully understood, and related to possible world-wide trends, further assessment of early Palaeozoic sulfur and carbon burial rates is needed. Furthermore, as S / C burial rates are known to vary, the ages of the sediments being analysed need to be more precisely known.
Donnelly T. H.
Shergold J. H.
Southgate P. N.
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