Carbon and Nitrogen Cycling Pursuant to the Great Oxidation Event: Evidence from the Paleoproterozoic of Fennoscandia

摘要

INTRODUCTION Scientific drilling under the auspices of the International Continental Drilling Program has recently recovered 3 600 m of core materials spanning the Paleoproterozoic of Arctic Russia (Fig. 1). A key goal of FAR-DEEP (Fennoscandia Arctic Russia-Drilling Early Earth Project) is to document the development of an aerobic biosphere following the great oxidation event ～2.4 Ga (Melezhik et al., 2005). Toward that end, we present an analysis of C and N cycling during this critical interval, based on preliminary analysis of archival FAR-DEEP samples.