Electrical resistivity of modern marine sediments from the Bering Sea
This study is concerned with the relationships between electrical resistivity and the bulk physical properties of sea floor sediment. Electrical resistivity was measured in gravity-cored, unconsolidated sediments from the Bering Sea. These sediments were olive green to black silty clays to sands, wi...
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1967
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ftsandiegostateu:oai:drupal-site.org:sdsu_28003 2023-05-15T15:43:24+02:00 Electrical resistivity of modern marine sediments from the Bering Sea Boyce, Robert Eugene (author) Thomas, B. E. (Committee Member) Berry, Richard W. (Committee Member) Craig, R. L. (Committee Member) Buffington, E. C. (Committee Member) Hamilton, E. L. (Committee Member) Geological Sciences (Department) Pacific Ocean -- Bering Sea 1967-06-05 185 pages https://hdl.handle.net/20.500.11929/sdsu:28003 en_US eng Bering Strait Chukchi Sea Aleutian Islands Buldir Depression Bowers Ridge Perched basin Eastern continental shelf Thesis 1967 ftsandiegostateu https://doi.org/20.500.11929/sdsu:28003 2022-03-24T18:47:47Z This study is concerned with the relationships between electrical resistivity and the bulk physical properties of sea floor sediment. Electrical resistivity was measured in gravity-cored, unconsolidated sediments from the Bering Sea. These sediments were olive green to black silty clays to sands, with a thin brownish cover in the central basin. They contained up to 20% clay minerals and less than 1% metallic minerals. Biogenic fractions consisted mainly of diatoms with minor amounts of radiolarians, spicules, and foraminifers. Porosity appeared to be inversely related to the silt size fraction, and directly to the phi deviation measure and clay size fraction. The relationship between porosity and phi deviation measure was probably secondary with the primary influence contributed by the clay size fraction. Resistivity ranged from 29.1 to 71.0 ohm-cm at 25° C and irregularly increased 11 ohm-cm within the first meter below the sediment surface, principally because of porosity changes. In situ resistivity may be greater than these laboratory values by a factor up to 2. The formation factor (F), ratio of sediment resistivity to interstitial water resistivity, ranged from 1.57 to 3.70 and was related to porosity (ϕ) and wet bulk density (ρ), respectively by: F = 1.30 ϕ-1.45 and F = 1.13ρ1.72 with errors of ± 15% and ± 10%. Within certain limits resistivity may be used to estimate other physical properties of the sediment. San Diego State University Thesis Bering Sea Bering Strait Chukchi Chukchi Sea Aleutian Islands SDSUnbound (San Diego State University) Bering Sea Chukchi Sea Bering Strait Pacific Bowers ENVELOPE(164.083,164.083,-85.000,-85.000) Central Basin ENVELOPE(43.000,43.000,73.500,73.500) |
institution |
Open Polar |
collection |
SDSUnbound (San Diego State University) |
op_collection_id |
ftsandiegostateu |
language |
English |
topic |
Bering Strait Chukchi Sea Aleutian Islands Buldir Depression Bowers Ridge Perched basin Eastern continental shelf |
spellingShingle |
Bering Strait Chukchi Sea Aleutian Islands Buldir Depression Bowers Ridge Perched basin Eastern continental shelf Electrical resistivity of modern marine sediments from the Bering Sea |
topic_facet |
Bering Strait Chukchi Sea Aleutian Islands Buldir Depression Bowers Ridge Perched basin Eastern continental shelf |
description |
This study is concerned with the relationships between electrical resistivity and the bulk physical properties of sea floor sediment. Electrical resistivity was measured in gravity-cored, unconsolidated sediments from the Bering Sea. These sediments were olive green to black silty clays to sands, with a thin brownish cover in the central basin. They contained up to 20% clay minerals and less than 1% metallic minerals. Biogenic fractions consisted mainly of diatoms with minor amounts of radiolarians, spicules, and foraminifers. Porosity appeared to be inversely related to the silt size fraction, and directly to the phi deviation measure and clay size fraction. The relationship between porosity and phi deviation measure was probably secondary with the primary influence contributed by the clay size fraction. Resistivity ranged from 29.1 to 71.0 ohm-cm at 25° C and irregularly increased 11 ohm-cm within the first meter below the sediment surface, principally because of porosity changes. In situ resistivity may be greater than these laboratory values by a factor up to 2. The formation factor (F), ratio of sediment resistivity to interstitial water resistivity, ranged from 1.57 to 3.70 and was related to porosity (ϕ) and wet bulk density (ρ), respectively by: F = 1.30 ϕ-1.45 and F = 1.13ρ1.72 with errors of ± 15% and ± 10%. Within certain limits resistivity may be used to estimate other physical properties of the sediment. San Diego State University |
author2 |
Boyce, Robert Eugene (author) Thomas, B. E. (Committee Member) Berry, Richard W. (Committee Member) Craig, R. L. (Committee Member) Buffington, E. C. (Committee Member) Hamilton, E. L. (Committee Member) Geological Sciences (Department) |
format |
Thesis |
title |
Electrical resistivity of modern marine sediments from the Bering Sea |
title_short |
Electrical resistivity of modern marine sediments from the Bering Sea |
title_full |
Electrical resistivity of modern marine sediments from the Bering Sea |
title_fullStr |
Electrical resistivity of modern marine sediments from the Bering Sea |
title_full_unstemmed |
Electrical resistivity of modern marine sediments from the Bering Sea |
title_sort |
electrical resistivity of modern marine sediments from the bering sea |
publishDate |
1967 |
url |
https://hdl.handle.net/20.500.11929/sdsu:28003 |
op_coverage |
Pacific Ocean -- Bering Sea |
long_lat |
ENVELOPE(164.083,164.083,-85.000,-85.000) ENVELOPE(43.000,43.000,73.500,73.500) |
geographic |
Bering Sea Chukchi Sea Bering Strait Pacific Bowers Central Basin |
geographic_facet |
Bering Sea Chukchi Sea Bering Strait Pacific Bowers Central Basin |
genre |
Bering Sea Bering Strait Chukchi Chukchi Sea Aleutian Islands |
genre_facet |
Bering Sea Bering Strait Chukchi Chukchi Sea Aleutian Islands |
op_doi |
https://doi.org/20.500.11929/sdsu:28003 |
_version_ |
1766377489672699904 |