Grain size composition of sediments from ODP Leg 164 sites

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Autori principali: Ginsburg, G D, Soloviev, Valery, Matveeva, T, Andreeva, Irina A
Natura: Dataset Open Access
Lingua:en
Pubblicazione: PANGAEA 2000
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author Ginsburg, G D
Soloviev, Valery
Matveeva, T
Andreeva, Irina A
author_facet Ginsburg, G D
Soloviev, Valery
Matveeva, T
Andreeva, Irina A
collection Datos científicos de ciencias marinas y ambientales
contents This research was designed to check the assumption of the grain-size control on a gas hydrate presence in the Blake Ridge sediments; the assumption had originated from the data gained at Deep Sea Drilling Project (DSDP) Site 533. Granulometric analysis (the combined pipette-sieve method) of the 345 sediment samples obtained after pore-water squeezing from Ocean Drilling Program (ODP) Sites 994, 995, and 997 has provided support for this assumption. The zone of negative anomalies of pore-water chlorinity, which is generally recognized to be gas hydrate bearing, is confined, as a whole, to the interval of comparatively coarse-grained sediments in each of the three site columns because content of the fine fractions <0.05, <0.01, <0.005, and <0.001 mm is lower there (although the character of this control changes from site to site). The individual chlorinity anomalies also coincide, for the most part, with relatively coarse-grained sediments.
format Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_804236
institution PANGAEA
language en
publishDate 2000
publisher PANGAEA
record_format pangaea
spellingShingle Grain size composition of sediments from ODP Leg 164 sites
Ginsburg, G D
Soloviev, Valery
Matveeva, T
Andreeva, Irina A
Ocean Drilling Program; ODP
This research was designed to check the assumption of the grain-size control on a gas hydrate presence in the Blake Ridge sediments; the assumption had originated from the data gained at Deep Sea Drilling Project (DSDP) Site 533. Granulometric analysis (the combined pipette-sieve method) of the 345 sediment samples obtained after pore-water squeezing from Ocean Drilling Program (ODP) Sites 994, 995, and 997 has provided support for this assumption. The zone of negative anomalies of pore-water chlorinity, which is generally recognized to be gas hydrate bearing, is confined, as a whole, to the interval of comparatively coarse-grained sediments in each of the three site columns because content of the fine fractions <0.05, <0.01, <0.005, and <0.001 mm is lower there (although the character of this control changes from site to site). The individual chlorinity anomalies also coincide, for the most part, with relatively coarse-grained sediments.
title Grain size composition of sediments from ODP Leg 164 sites
topic Ocean Drilling Program; ODP
url https://doi.org/10.1594/PANGAEA.804236