Chemical analyses and results of sediments from different DSDP Holes from the North Atlantic ...
Chemical analyses of North Atlantic D.S.D.P. (Deep Sea Drilling Project) sediments indicate that basal sediments generally contain higher concentrations of Fe, Mn, Mg, Pb, and Ni, and similar or lower concentrations of Ti, Al, Cr, Cu, Zn, and Li than the material overlying them. Partition studies on...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
1976
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.762329 https://doi.pangaea.de/10.1594/PANGAEA.762329 |
| Summary: | Chemical analyses of North Atlantic D.S.D.P. (Deep Sea Drilling Project) sediments indicate that basal sediments generally contain higher concentrations of Fe, Mn, Mg, Pb, and Ni, and similar or lower concentrations of Ti, Al, Cr, Cu, Zn, and Li than the material overlying them. Partition studies on selected samples indicate that the enriched metals in the basal sediments are usually held in a fashion similar to that in basal sediments from the Pacific, other D.S.D.P. sediments, and modern North Atlantic ridge and non-ridge material.Although, on average, chemical differences between basal sediments of varying ages are apparent, normalization of the data indicates that the processes leading to metal enrichment on the crest of the Mid-Atlantic Ridge appear to have been approximately constant in intensity since Cretaceous times. In addition, the bulk composition of detrital sediments also appears to have been relatively constant over the same time period. Paleocene sediments from site 118 are, however, an ... : Supplement to: Horowitz, Arthur; Cronan, David S (1976): The geochemistry of basal sediments from the North Atlantic Ocean. Marine Geology, 20(3), 205-228 ... |
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