THE LATE CAMBRIAN SPICE (d13C) EVENT AND THE SAUK II–SAUK III REGRESSION: NEW EVIDENCE FROM LAURENTIAN BASINS IN UTAH, IOWA, AND NEWFOUNDLAND
ABSTRACT: Carbon isotope data from Upper Cambrian sections in three Laurentian basins in northern Utah, central Iowa, and western Newfoundland record a large positive d13C excursion (SPICE event) of up to 1 5‰. Peak d13C ratios are well dated by trilobite collections to the middle of the Steptoean S...
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.566.8942 http://www.geology.ohio-state.edu/~saltzman/saltzmanetal_jsr04.pdf |