Carbon isotope stratigraphy of Upper Cambrian (Steptoean Stage) sequences of the eastern Great Basin: Record of a global oceanographic event

1998 ◽  
Vol 110 (3) ◽  
pp. 285-297 ◽  
Author(s):  
Matthew R. Saltzman ◽  
Bruce Runnegar ◽  
Kyger C. Lohmann
Keyword(s):  
Carbon Isotope ◽  
Great Basin ◽  
Carbon Isotope Stratigraphy ◽  
Upper Cambrian ◽  
Isotope Stratigraphy

Carbon isotope stratigraphy of the Neoproterozoic-Cambrian transition: An introduction

2004 ◽  
Vol 10 ◽  
pp. 17-34
Author(s):  
Frank A. Corsetti
Keyword(s):  
Carbon Isotope ◽  
Great Basin ◽  
Carbon Isotope Stratigraphy ◽  
Isotope Stratigraphy ◽  
End Members

Carbonate units deposited during the Precambrian-Cambrian transition records a unique δ13C profile that is useful for chemostratigraphic correlation. However, the Precambrian-Cambrian boundary is currently defined within siliciclastic units where δ13C data are not available. The mixed siliciclastic-carbonate succession from the southern Great Basin, USA, records the appropriate fossils in the siliciclastic strata interbedded with carbonate strata that record the appropriate shifts in δ13C to facilitate correlation between the lithologic end-members. Ultimately, the integrated dataset demonstrates that vertical burrowing and the onset of widespread biomineralization was essentially synchronous.

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