Variations in the Global Carbon Cycle During the Cretaceous Related to Climate, Volcanism, and Changes in Atmospheric CO2
MA Arthur, WE Dean… - The carbon cycle and …, 1985 - Wiley Online Library
The stratigraphic record from both deep‐sea and shallow‐water depositional environments
indicates that during late Aptian through Cenomanian time (1) global climates were …
indicates that during late Aptian through Cenomanian time (1) global climates were …
Anomalous 13C enrichment in modern marine organic carbon
MA Arthur, WE Dean, GE Claypool - Nature, 1985 - nature.com
Marine organic carbon is heavier isotopically (13C enriched) than most land-plant or
terrestrial organic C1. Accordingly, δ 13C values of organic C in modern marine sediments …
terrestrial organic C1. Accordingly, δ 13C values of organic C in modern marine sediments …
Organic and inorganic constituents of the Niobrara Formation in Weld County, Colorado
WF Precht, RM Pollastro - 1985 - pubs.geoscienceworld.org
Detailed analyses of deeply-buried chalks from cores of both the Smoky Hill Chalk and Fort
Hays Limestone Members of the Niobrara Formation were performed. The identified …
Hays Limestone Members of the Niobrara Formation were performed. The identified …