Controls on the Preservation of Biogenic Opal in Sediments of the Eastern Tropical Pacific
- 28 May 1976
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 192 (4242) , 887-890
- https://doi.org/10.1126/science.192.4242.887
Abstract
A map of the preservation pattern of siliceous microfossils was constructed from an examination of 125 piston and gravity cores of Quaternary sediments from throughout the eastern tropical Pacific. Preservation is enhanced where high surface water productivity supplies a high input rate of siliceous tests to the sea floor, except in a large area north of 5°N, east of the East Pacific Rise. Here a high input rate of terrigenous silicates may adversely affect preservation of biogenic opal in the sea-floor sediments.This publication has 13 references indexed in Scilit:
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