Chemical element contents and accumulation rates in metalliferous sediments from DSDP Hole 34-319, Bauer Deep, Southeast Pacific

Marked variations in the chemical and mineralogical composition of sediments at Site 319 have occurred during the 15 My history of sedimentation at this site. The change in composition through time parallels the variability observed in surface sediments from various parts of the Nazca Plate and can be related to variations in the proportion of hydrothermal, hydrogenous, detrital and biogenous phases reaching this site at different times. Metal accumulation rates at Site 319 reach a maximum near the basement for most elements, suggesting a strong hydrothermal contribution during the early history of this site. The hydrothermal contribution decreased rapidly as Site 319 moved away from the spreading center, although a subtle increase in this source is detectable about the time spreading began on the East Pacific Rise. The most recent sedimentation exhibits a strong detritalhydrogenous influence. Post-depositional diagenesis of amorphous phases has converted them to ironrich smectite and well-crystallized goethite without significantly altering the bulk composition of the sediment.

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Cite this as

Dymond, Jack R, Corliss, John B, Heath, G Ross (1977). Dataset: Chemical element contents and accumulation rates in metalliferous sediments from DSDP Hole 34-319, Bauer Deep, Southeast Pacific. https://doi.org/10.1594/PANGAEA.706893

DOI retrieved: 1977

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.706893
Author Dymond, Jack R
Given Name Jack R
Family Name Dymond
More Authors
Corliss, John B
Heath, G Ross
Source Creation 1977
Publication Year 1977
Resource Type application/zip - filename: Dymond-1977
Subject Areas
Name: Chemistry

Name: Lithosphere

Related Identifiers
Title: History of metalliferous sedimentation at Deep Sea Drilling Site 319, in the South Eastern Pacific
Identifier: https://doi.org/10.1016/0016-7037(77)90045-X
Type: DOI
Relation: IsSupplementTo
Year: 1977
Source: Geochimica et Cosmochimica Acta
Authors: Dymond Jack R , Corliss John B , Heath G Ross .