BARITE MINERALIZATION IN THE DERYUGIN BASIN OF THE SEA OF OKHOTSK: ACTIVE PROCESSES AND FORMATION CONDITIONS

2017 ◽  
Keyword(s):  
Sea Of Okhotsk ◽  
Deryugin Basin ◽  
The Sea Of Okhotsk ◽  
Formation Conditions ◽  
Active Processes

Barite mineralization in the Deryugin Basin of the Okhotsk Sea: Active processes and formation conditions

2017 ◽  
Vol 58 (2) ◽  
pp. 165-176 ◽  
Author(s):  
A.S. Astakhov ◽  
V.V. Ivin ◽  
V.N. Karnaukh ◽  
A.A. Koptev ◽  
B.Ya. Li ◽  
...  
Keyword(s):  
Okhotsk Sea ◽  
Deryugin Basin ◽  
Formation Conditions ◽  
Active Processes

Genesis and Nd Isotope Composition of Ferromanganese Deposits of the Sea of Okhotsk and the Kuril Island Arc

2021 ◽  
Vol 62 (9) ◽  
pp. 1074-1087
Author(s):  
P.E. Mikhailik ◽  
I.A. Vishnevskaya ◽  
E.V. Mikhailik ◽  
M.G. Blokhin ◽  
M.V. Chervyakovskaya ◽  
...  
Keyword(s):  
Sea Of Okhotsk ◽  
Kuril Island ◽  
Isotope Composition ◽  
Island Arc ◽  
Deryugin Basin ◽  
Nd Isotope ◽  
The Sea Of Okhotsk ◽  
Ferromanganese Deposits ◽  
Nd Isotope Composition ◽  
Kuril Island Arc

Abstract —The Nd isotope composition of ferromanganese deposits (FMD) from the central part of the Sea of Okhotsk and the Kuril island arc has been studied. The results showed that diagenetic samples from the Deryugin Basin have a heterogeneous Nd isotope composition. The positive εNd values here might be both due to the input of a terrigenous impurity and due to diffuse endogenetic element supply. The FMD samples from the Sonne underwater ridge show a εNd value specific to seawater (–3.2). The εNd value of hydrogenetic FMD from Volcano 7.14 is –3.4, which corresponds to the εNd value of the Pacific water. The FMD samples from Volcano 5.5 are characterized by εNd = –2.0. The higher εNd value might be due to a moderate dilution of the hydrothermal fluid by seawater and might also indicate the presence of volcanic fragments in the FMD samples. The highest εNd value (+4.4) has been established for volcaniclastic sandstone saturated with Fe and Mn hydroxides. It points to a mixing of volcanomictic and hydrothermal materials.

scholarly journals Peculiarities of anomalous gas-geochemical fields in the East Deryugin graben of the Sea of Okhotsk

2021 ◽  
Vol 5 (3) ◽  
pp. 229-239
Author(s):  
R.B. Shakirov ◽  
◽  
A.L. Venikova ◽  
N.L. Sokolova ◽  
A.I. Obzhirov ◽  
...  
Keyword(s):  
Methane Emission ◽  
Sea Of Okhotsk ◽  
Research Data ◽  
Methane Seep ◽  
Deryugin Basin ◽  
Gas Discharges ◽  
The Sea Of Okhotsk ◽  
Methane Distribution

This paper presents the research data on methane distribution in the area of the most noticeable gas discharges in the Deryugin Basin of the Sea of Okhotsk. In the East Deryugin graben, a unique methane seep is known, which spatially coincides with the local authigenic barite-carbonate mineralization. The question of the source nature, which is associated with the methane emission in the studied area, is considered.

Foraminifers in late Pleistocene-Holocene sediments of the Deryugin Basin of the Sea of Okhotsk

Oceanology ◽  
2009 ◽  
Vol 49 (5) ◽  
pp. 707-717
Author(s):  
T. A. Khusid ◽  
N. V. Belyaeva ◽  
M. P. Chekhovskaya ◽  
A. G. Matul
Keyword(s):  
Late Pleistocene ◽  
Sea Of Okhotsk ◽  
Deryugin Basin ◽  
The Sea Of Okhotsk ◽  
Holocene Sediments
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