Cenozoic stratigraphy of the northern Sakhalin shelf

Zharov, A. E.; Mitrofanova, L. I.; Tuzov, V. P.

doi:10.1134/s0869593813050079

Cited by 9 publications

(9 citation statements)

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“…The observed increased contents of helium (20 ppm) and hydrogen (22 ppm) may indicate the activity and significant deposition depth of the fault (Shakirov et al, 2012). At a relatively small depth, there are highly elastic clay deposits of Neogene age (Gladinkov (Editor), 1998; Zharov et al, 2013). According to the literature, DGHS is also associated with the mud volcanic process (Melnikov and Iliev, 1989).…”

Section: Initial Datamentioning

confidence: 99%

“…(1) -Yu-22(5) -individual crystals of sideroplezites selected from the sample Yu-22; Yu-9/17.08(6) -Yu-9/17.08(12) -individual crystals of sideroplezites selected from the sample Yu-9/17.08; P-06(13) -P-06(14) -crystals of sideroplezites selected from the sample P-06; D1/1(16) -D1/1(16) -crystals of sideroplezites selected from the sample D1/1; nd-not determined Analysis of diatom flora in samples from DGHS showed the prevalence of marine and brackish-water species, among which the marine plankton-benthic species Paralia sulcata (Ehrenberg) Cleve, characteristic of shelf waters, dominates (Diatoms eic algae of the USSR, 1974; Hasle and Syvertsen, 1996). A significant number of freshwater diatoms (up to 32%) and an admixture (up to 5.5%) of marine species, extinct in the Neogene, (Actinocyclus ingens Rattray, Ikebea tenuis (Brun) Akiba, Cosmiodiscus insignis (Brun) Jousé, Eupyxidicula zabelinae (Jousé) Blanco & Wetzel Pyxidicula zabelinae (Jousé) Makarova et Moisseeva et al), supposedly introduced from the clay strata of the Okobykai and Nutovsky Neogene formations distributing lower at a relatively shallow depth (Gladenkov (Editor), 1998; Lobodenko, 2010;Zharov et al, 2013). This indicates the existence of an active fluid dynamic system, which drains oil and gas bearing complexes (Table 5).…”

Section: Geochemical Features Of the Mud Brecciasmentioning

confidence: 99%

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Geochemical features of Sakhalin Island mud volcanoes

et al. 2017

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The study, based on a complex geochemical research, found that the composition of the most chemical elements in mud breccia from the Yuzhno-Sakhalinsky (YSMV) and Pugachevsky (PMV) mud volcanoes (Sakhalin Island), the unique phenomena of endogenous defluidization in the Hokkaido-Sakhalin fold system (alpine-type folding), are comparable to Clarke (C) contents of these elements (0.8-1.2 ×C). For Na, Li, Zn and Sn, the ratio between the elemental contentsand their Clarke values (C sample /Clarke value) vary from 1.4 to 5.2 xC. But the increased contents of Na and Li are due to the ascending endogenous fluid revealed. Study of the mud breccia chemical composition changes in different explosive activity of YSMV under the seismic activity variations allowed to establish that, when the mud-volcanic gryphons are activated against the background of increase in the temperature of the water-mud mixture and the emission of spontaneous gases, the contents of a number of elements (iron, calcium, manganese, rare earth elements, etc.) are decreased. This is explained by the formation of soluble hydrocarbonate complexes. Daginskie gasgeothermal system (DGHS) trace elements depleted ooze samples were compared with YSMV and PMV samples and exposed that the high ratios of C sample /Clarke values for the majority of elements do not exceed 0.6 ×C. Ooze samples from DGHS having higher elemental contents than Clark contents were observed only for Cd content (2.2-3.4×C) and Pb (0.7-1.5×C). Analysis of diatom flora on the DGHS site indicates the existence of an active fluid dynamic system that drains oil and gas bearing complexes. The factors determining the "weighting" of the methane carbon isotope composition in the southern part of Sakhalin Island are the increased seismic activity of deep-seated faults, as well as the presence of intrusions (diabase) and metamorphically altered rocks.

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Section: Initial Datamentioning

confidence: 99%

Section: Geochemical Features Of the Mud Brecciasmentioning

confidence: 99%

Geochemical features of Sakhalin Island mud volcanoes

et al. 2017

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“…1d). Biostratigraphic data, based on analysis of multiple microfossil assemblages across a wide range of wells and stratigraphic sections across northern Sakhalin, allow ages to be assigned to each of these stratigraphic units (Gladenkov et al, 2002;Zharov et al, 2013). These stratigraphic units provide the main framework for the seismic stratigraphic interpretations in this article.…”

Section: Geological and Stratigraphic Frameworkmentioning

confidence: 99%

“…(d) Neogene stratigraphy of the N orth S akhalin B asin, with ages of suite boundaries from Zharov et al . () and Gladenkov et al . ().…”

Section: Introductionmentioning

confidence: 99%

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The sedimentary and tectonic evolution of the Amur River and North Sakhalin Basin: new evidence from seismic stratigraphy and Neogene–Recent sediment budgets

Nicholson

Clift

et al. 2015

Basin Research

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The North Sakhalin Basin in the western Sea of Okhotsk has been the main site of sedimentation from the Amur River since the Early Miocene. In this article, we present regional seismic reflection data and a Neogene–Recent sediment budget to constrain the evolution of the basin and its sedimentary fill, and consider the implications for sediment flux from the Amur River, in particular testing models of continental‐scale Neogene drainage capture. The Amur‐derived basin‐fill history can be divided into five distinct stages: the first Amur‐derived sediments (>21–16.5 Ma) were deposited during a period of transtension along the Sakhalin‐Hokkaido Shear Zone, with moderately high sediment flux to the basin (71 Mt year−1). The second stage sequence (16.5–10.4 Ma) was deposited following the cessation of transtension, and was characterised by a significant reduction in sediment flux (24 Mt year−1) and widespread retrogradation of deltaic sediments. The third (10.4–5.3 Ma) and fourth (5.3–2.5 Ma) stages were characterised by progradation of deltaic sediments and an associated increase in sediment flux (48–60 Mt year−1) to the basin. Significant uplift associated with regional transpression started during this time in southeastern Sakhalin, but the north‐eastward propagating strain did not reach the NE shelf of Sakhalin until the Pleistocene (<2.5 Ma). This uplift event, still ongoing today, resulted in recycling of older deltaic sediments from the island of Sakhalin, and contributed to a substantially increased total sediment flux to the adjacent basinal areas (165 Mt year−1). Adjusted rates to discount these local erosional products (117 Mt year−1) imply an Amur catchment‐wide increase in denudation rates during the Late Pliocene–Pleistocene; however, this was likely a result of global climatic and eustatic effects, combined with tectonic processes within the Amur catchment and possibly a smaller drainage capture event by the Sungari tributary, rather than continental‐scale drainage capture involving the entire upper Amur catchment.

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Marine diagenesis of ikaite: Implications from the isotopic and geochemical composition of glendonites and host concretions (Palaeogene–Neogene sediments, Sakhalin Island)

et al. 2021

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Glendonites represent pseudomorphs after calcium carbonate hexahydrate (ikaite) and can be used as indicators of past cold climates, because ikaite only naturally occurs in cold environments (<7°C) in the modern. The results of a multi-proxy study of 11 glendonite and host concretion samples from Palaeogene (Gennoishi Formation) and Neogene (Bora and Vengeri formations) sediments from Sakhalin Island, Russian Far East are reported here. Petrographic, cathodoluminescence, powder X-ray diffraction and scanning electron microscope analyses reveal that glendonites are composed of several successive mineralogical phases: low-magnesium ikaite-derived calcite, highmagnesium acicular cement (calcite and dolomite) and blocky calcite or authigenic quartz filling the remaining pore space. Host concretions comprise sandy limestones cemented by high-magnesium calcite. The d 13 C and d 18 O values for host concretions and enclosed glendonites are very similar, with d 13 C ranging from -20.3 to +1.9& Vienna Pee-Dee Belemnite and d 18 O ranging from -3.4 to +3.4& Vienna Pee-Dee Belemnite. Such isotopic values suggest that seawater was the main source of oxygen, while dissolved inorganic carbon and decaying organic matter were the main carbon sources for ikaite growth, concretion and glendonite cementation. The 87 Sr/ 86 Sr values within the glendonites and host concretions are significantly lower compared with coeval Palaeogene-Neogene marine carbonates, suggesting an influence of continental runoff on their isotopic composition. Post Archean Australian Shale normalized rare earth element patterns display negative Ce anomalies and positive Eu anomalies, with a depletion in light rare earth elements or bulge in middle rare earth elements. Such spectra of rare earth elements indicate that ikaite growth and replacement occurred very close to the aerobic-anaerobic boundary, with pore waters derived from trapped seawater and/or ikaite dehydration. Since Mg/Ca ratios and alkalinity increase 2227

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Cenozoic stratigraphy of the northern Sakhalin shelf

Cited by 9 publications

References 1 publication

Geochemical features of Sakhalin Island mud volcanoes

Geochemical features of Sakhalin Island mud volcanoes

The sedimentary and tectonic evolution of the Amur River and North Sakhalin Basin: new evidence from seismic stratigraphy and Neogene–Recent sediment budgets

Marine diagenesis of ikaite: Implications from the isotopic and geochemical composition of glendonites and host concretions (Palaeogene–Neogene sediments, Sakhalin Island)

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