Chemical composition of hydrothermal carbonates and barites from the Deryugin Basin, Sea of Okhotsk
Fuente:
PANGAEA
Enregistré dans:
| Auteurs principaux: | , |
|---|---|
| Format: | Dataset Open Access |
| Langue: | en |
| Publié: |
PANGAEA
2001
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1867171361684717568 |
|---|---|
| author | Astakhova, N V Sorochinskaya, A V |
| author_facet | Astakhova, N V Sorochinskaya, A V |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_762365 |
| institution | PANGAEA |
| language | en |
| publishDate | 2001 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Chemical composition of hydrothermal carbonates and barites from the Deryugin Basin, Sea of Okhotsk Astakhova, N V Sorochinskaya, A V Archive of Ocean Data; ARCOD; AS-9310; Dredge; DRG; GC; Gravity corer; K-75; P31-3161; Sea of Okhotsk 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. |
| title | Chemical composition of hydrothermal carbonates and barites from the Deryugin Basin, Sea of Okhotsk |
| topic | Archive of Ocean Data; ARCOD; AS-9310; Dredge; DRG; GC; Gravity corer; K-75; P31-3161; Sea of Okhotsk |
| url | https://doi.org/10.1594/PANGAEA.762365 |