Citation:

PANGAEA.762365, Supplement to: Astakhova, NV; Sorochinskaya, AV (2001): Hydrothermal formations in the Deryugin Basin sediments of the Sea of Okhotsk. Translated from Okeanologiya, 2001, 41(3), 447-455, Oceanology, 41(3), 429-437

Name: Chemical composition of hydrothermal carbonates and barites from the Deryugin Basin, Sea of Okhotsk
Published: 2001
License: https://creativecommons.org/licenses/by/3.0/

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Published: 2001 (exact date unknown) • DOI registered: 2011-07-27

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Abstract:

Data on hydrothermal activity in the Deryugin Basin (Sea of Okhotsk) are reviewed. Barites and carbonates found in sediment cores sampled at feet of hydrothermal mounds were subdivided into recycled and authigenic types. Recycled minerals were represented by crystals and aggregations of travertine-like barite and fragments of barite and carbonate tubes. Authigenic formations included: (1) carbonate nodules; (2) barite micronodules; (3) transparent colorless barite that generated numerous small nests and filled cavities in sediments; (4) yellow barite formed thin (0.5 mm) veins; and (5) white barite cemented small aggregations of coarse-grained sediments. A detailed examination of formation processes of authigenic minerals in the bottom sediment cores allowed to conclude that, there, hydrothermal activity is still going on today. This was confirmed by high methane concentration in near-bottom water above a field of hydrothermal barite minerals.

Project(s):

Archive of Ocean Data (ARCOD)

Coverage:

Median Latitude: 54.016500 * Median Longitude: 146.275350 * South-bound Latitude: 54.011700 * West-bound Longitude: 146.261600 * North-bound Latitude: 54.027200 * East-bound Longitude: 146.283300

Event(s):

AS-9310 * Latitude: 54.011700 * Longitude: 146.283300 * Elevation: -1505.0 m * Location: Sea of Okhotsk * Method/Device: Gravity corer (GC)

K-75 * Latitude: 54.027200 * Longitude: 146.273200 * Location: Sea of Okhotsk * Method/Device: Dredge (DRG)

P31-3161 * Latitude: 54.015400 * Longitude: 146.261600 * Elevation Start: -1470.0 m * Elevation End: -1480.0 m * Location: Sea of Okhotsk * Method/Device: Dredge (DRG)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

2 datasets

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Datasets listed in this publication series

Astakhova, NV; Sorochinskaya, AV (2001): (Table 1) Chemical composition of barite formations from the Deryugin Basin, Sea of Okhotsk. https://doi.org/10.1594/PANGAEA.762363
Astakhova, NV; Sorochinskaya, AV (2001): (Table 2) Chemical composition of carbonate and barite tubes and nodules and bulk sediments from Core AS-9310. https://doi.org/10.1594/PANGAEA.762364