Physics
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984gecoa..48..897k&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 48, Issue 5, pp.897-902
Physics
8
Scientific paper
Iodometric titration of deep sea sediment from cores at MANOP sites M and H indicate a particulate Mn oxidation state between 3.3 and 3.9 in the top 5 cm. Results from site H show a minimum in the Mn oxidation state at 1.5 cm depth indicating Mn reduction is occurring above the zone of pore water Mn oxidation. Using a simple box model, the rate of reduction is calculated to be 19 mg/cm 2 kyr - 77 mg/cm 2 kyr, at least 5 times the flux of Mn to nodules in this region. Although no Mn oxidation state minimum is observed in site M sediments, oxic reduction is inferred from a particulate mass balance, indicating that a large fraction of the Mn rain to this site is not preserved in the sediments and must be remobilized. We suggest that the process of reduction in oxic or suboxic environments near the sediment-water interface may be an important mechanism controlling the concentration of Mn in sediments and provides a mechanism for supplying diagenetic Mn to the nodules at site H.
Emerson Steven
Kalhorn Susan
No associations
LandOfFree
The oxidation state of manganese in surface sediments of the deep sea does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The oxidation state of manganese in surface sediments of the deep sea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The oxidation state of manganese in surface sediments of the deep sea will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1368628