Anomalous 13C enrichment in modern marine organic carbon

Nature ◽  
1985 ◽  
Vol 315 (6016) ◽  
pp. 216-218 ◽  
Author(s):  
Michael A. Arthur ◽  
Walter E. Dean ◽  
George E. Claypool
Keyword(s):  
Organic Carbon ◽  
Marine Organic Carbon

scholarly journals Bromine counts from XRF scanning as an estimate of the marine organic carbon content of sediment cores

2008 ◽  
Vol 9 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Martin Ziegler ◽  
Tom Jilbert ◽  
Gert J. de Lange ◽  
Lucas J. Lourens ◽  
Gert-Jan Reichart
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Sediment Cores ◽  
Organic Carbon Content ◽  
Xrf Scanning ◽  
Marine Organic Carbon

scholarly journals Abiotic synthesis of graphite in hydrothermal vents

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Emily R. Estes ◽  
Debora Berti ◽  
Nicole R. Coffey ◽  
Michael F. Hochella ◽  
Andrew S. Wozniak ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Hydrothermal Vents ◽  
Direct Evidence ◽  
Settling Velocity ◽  
East Pacific Rise ◽  
Deep Ocean ◽  
Analytical Techniques ◽  
Filtration Method ◽  
East Pacific ◽  
Marine Organic Carbon

AbstractDeciphering the origin, age, and composition of deep marine organic carbon remains a challenge in understanding the dynamics of the marine carbon cycle. In particular, the composition of aged organic carbon and what allows its persistence in the deep ocean and in sediment is unresolved. Here, we observe that both high and low temperature hydrothermal vents at the 9° 50′ N; 104° 17.5 W East Pacific Rise (EPR) vent field are a source for (sub)micron-sized graphite particles. We demonstrate that commonly applied analytical techniques for quantification of organic carbon detect graphite. These analyses thereby classify graphite as either dissolved or particulate organic carbon, depending on the particle size and filtration method, and overlook its relevance as a carbon source to the deep ocean. Settling velocity calculations indicate the potential for these (sub)micron particles to become entrained in the buoyant plume and distributed far from the vent fields. Thus, our observations provide direct evidence for hydrothermal vents acting as a source of old carbon to the deep ocean.

scholarly journals Comment on "Physical Model for the Decay and Preservation of Marine Organic Carbon"

Science ◽  
2008 ◽  
Vol 319 (5870) ◽  
pp. 1616b-1616b ◽  
Author(s):  
B. P. Boudreau ◽  
C. Arnosti ◽  
B. B. Jorgensen ◽  
D. E. Canfield
Keyword(s):  
Organic Carbon ◽  
Physical Model ◽  
Marine Organic Carbon

Thallium isotope evidence for a permanent increase in marine organic carbon export in the early Eocene

2009 ◽  
Vol 278 (3-4) ◽  
pp. 297-307 ◽  
Author(s):  
Sune G. Nielsen ◽  
Sarah Mar-Gerrison ◽  
Abdelmouhcine Gannoun ◽  
Doug LaRowe ◽  
Veronika Klemm ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Early Eocene ◽  
Carbon Export ◽  
Isotope Evidence ◽  
Permanent Increase ◽  
Marine Organic Carbon
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