Early diagenesis in rapidly accumulating sediments on the Alboran slope, ODP site 976
نویسندگان
چکیده
منابع مشابه
Early diagenesis in rapidly accumulating sediments on the Alboran slope , ODP site 976
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 red...
متن کاملMarine Geology
To constrain the timing of rifting in the western, eastern, and northern parts of the Alboran Sea basin, seismic reflectors, corresponding to biostratigraphic boundaries and unconformities from the Miocene to Recent, are correlated using synthetic seismograms. Regions of adjacent coeval compression and extension are found in the Alboran Sea basin. Normal faulting continues in parts of the easte...
متن کامل3. U-Th DATING AND DIAGENESIS OF PLEISTOCENE HIGHSTAND SEDIMENTS FROM THE BAHAMAS SLOPE
We have performed U-Th isotope analyses on pure aragonite samples from the upper sections of Leg 166 cores to assign each aragonite-rich sediment package to the correct sea-level highstand. The uppermost sediment package from each of the four sites investigated (Sites 1003, 1005, 1006, and 1007) yielded a Holocene U-Th age. Sediment packages from deeper in the cores have suffered diagenesis. Th...
متن کاملFormation and Diagenesis of Carbonate Sediments
7.03.3 SOURCES AND DIAGENESIS OF SHOAL-WATER CARBONATE-RICH SEDIMENTS 75 7.03.3.1 Sources of Shoal-water Carbonates 75 7.03.3.1.1 General considerations 75 7.03.3.1.2 Sources of carbonate muds 76 7.03.3.1.3 Formation of carbonate sands 76 7.03.3.2 Early Marine Diagenesis of Shoal-water Carbonate-rich Sediments 77 7.03.3.2.1 Pore-water chemistry 77 7.03.3.2.2 Precipitation of early carbonate cem...
متن کاملQuantitative Mass Transfer in Coastal Sediments During Early Diagenesis: Effects of Biological Transport, Mineralogy, and Fabric
The long-term goal of this project is to develop multicomponent reactive transport models that can be used to accurately describe solute transport in temporally and spatially heterogeneous, organic-rich sediments. To achieve this goal, we have developed a model that can be used to obtain unbiased 1D quantitative descriptions of biologically-enhanced solute transport (bioirrigation due to macrof...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geo-Marine Letters
سال: 1998
ISSN: 0276-0460,1432-1157
DOI: 10.1007/s003670050070