Bernasconi, S. M. et al. (1999): Early diagenesis in rapidly accumulating sediments on the Alboran slope, ODP Site 976

Leg/Site/Hole:
ODP 161
ODP 161 976
Identifier:
2012-014560
georefid
10.1007/s003670050070
doi
Creator:
Bernasconi, S. M.
Geologische Institut, Zurich, Switzerland
author
Meyers, P. A.
University of Michigan, Ann Arbor, MI, United States
author
O'Sullivan, G.
University of Wales, Cardiff, United Kingdom
author
Identification:
Early diagenesis in rapidly accumulating sediments on the Alboran slope, ODP Site 976
1999
Geo-Marine Letters
Springer International, Berlin, Germany
18
3
209-214
The oxidation and reduction that occur during early diagenesis of sediments has been studied in the interstitial waters of a rapidly accumulating sedimentary sequence from the Mediterranean margin of Spain. A series of reactions that are mediated by progressively lower free energy derived from oxidation of organic matter is evident in the sedimentary sequence. Iron and manganese are rapidly reduced. Phosphate and alkalinity maxima at a subbottom depth of 15 m indicate maximal organic matter degradation. Methane first appears at approximately 20 m subbottom after sulfate is depleted, and its concentrations quickly climb.
English
Serial
Coverage:Geographic coordinates:
North:36.1219
West:-4.1845East: -4.1845
South:36.1219
Oceanography; Alboran Sea; aliphatic hydrocarbons; alkanes; continental slope; diagenesis; early diagenesis; hydrocarbons; Leg 161; marine sedimentation; marine sediments; Mediterranean Sea; methane; Ocean Drilling Program; ODP Site 976; organic compounds; oxidation; reduction; sedimentation; sediments; West Mediterranean;
.