Magnetic susceptibility stratigraphy for Pleistocene and Pliocene sediments of ODP Leg 110 samples

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Main Author: Hounslow, Mark W
Format: Dataset Open Access
Language:en
Published: PANGAEA 1990
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_version_ 1867170459056865280
author Hounslow, Mark W
author_facet Hounslow, Mark W
collection Datos científicos de ciencias marinas y ambientales
contents Whole-core magnetic susceptibility measurements define a detailed stratigraphy that enables correlation between the various Pleistocene, Pliocene, and upper Miocene sections cored on ODP Leg 110, near the Tiburon Rise. The magnetic susceptibility in these sections is primarily related to the content of volcanic ash, rich in titanomagnetite, and also inversely related to calcium carbonate content. The high resolution of the susceptibility record enables correlations with a resolution of about 0.3 m of sediment thickness, and the identification of minor faults not definable by biostratigraphic means. Reverse and normal faults identified in Hole 672A are probably a result of normal oceanic sediment dewatering and compaction processes. This work indicates some of the problems of using visible ash layers as time-stratigraphic markers.
format Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_753138
institution PANGAEA
language en
publishDate 1990
publisher PANGAEA
record_format pangaea
spellingShingle Magnetic susceptibility stratigraphy for Pleistocene and Pliocene sediments of ODP Leg 110 samples
Hounslow, Mark W
110-671B; 110-672A; 110-673B; 110-676A; DRILL; Drilling/drill rig; Joides Resolution; Leg110; North Atlantic Ocean; Ocean Drilling Program; ODP
Whole-core magnetic susceptibility measurements define a detailed stratigraphy that enables correlation between the various Pleistocene, Pliocene, and upper Miocene sections cored on ODP Leg 110, near the Tiburon Rise. The magnetic susceptibility in these sections is primarily related to the content of volcanic ash, rich in titanomagnetite, and also inversely related to calcium carbonate content. The high resolution of the susceptibility record enables correlations with a resolution of about 0.3 m of sediment thickness, and the identification of minor faults not definable by biostratigraphic means. Reverse and normal faults identified in Hole 672A are probably a result of normal oceanic sediment dewatering and compaction processes. This work indicates some of the problems of using visible ash layers as time-stratigraphic markers.
title Magnetic susceptibility stratigraphy for Pleistocene and Pliocene sediments of ODP Leg 110 samples
topic 110-671B; 110-672A; 110-673B; 110-676A; DRILL; Drilling/drill rig; Joides Resolution; Leg110; North Atlantic Ocean; Ocean Drilling Program; ODP
url https://doi.org/10.1594/PANGAEA.753138