@article {866, title = {Sedimentary carbon-isotope systematics on the Amazon shelf}, journal = {Geo-Marine Letters}, volume = {16}, year = {1996}, note = {Ty588Times Cited:12Cited References Count:33}, month = {Feb}, pages = {17-23}, abstract = {Sedimentary carbon systematics on the Amazon continental shelf were investigated using C-14 and delta(13)C measurements of sedimentary organic materials. Mass balance calculations indicate that the C-14 content of modern shelf muds results from burial of old (similar to 5000 yr BP) terrestrial soil carbon and bomb-C-14-enriched marine carbon, implying that most of the bomb-labeled riverine particulate carbon is not buried on the shelf. The C-14 signature of Amazon shelf deposits records the effects of both biogeochemical and sedimentary processes active in this dynamic environment.}, issn = {0276-0460}, doi = {10.1007/Bf01218832}, author = {Sommerfield, C. K. and Nittrouer, C. A. and DeMaster, D. J.} }