Lithology of the Bazhenov and Georgiev Horizons of the Eastern Part of the West Sibarian Marine Basin

2018 ◽  
Author(s):  
A. Zamirailova ◽  
V. Eder
Keyword(s):  
The West ◽  
Marine Basin

Models of the REE distribution in the black shale Bazhenov Formation of the West Siberian marine basin, Russia

Geochemistry ◽  
2010 ◽  
Vol 70 (4) ◽  
pp. 363-376 ◽  
Author(s):  
Yuri N. Zanin ◽  
Vika G. Eder ◽  
Al’bina G. Zamirailova ◽  
Vladimir O. Krasavchikov
Keyword(s):  
Black Shale ◽  
The West ◽  
Bazhenov Formation ◽  
Ree Distribution ◽  
Marine Basin

scholarly journals Volgian–early berriasian marginal filter in the West Siberian marine basin and its influence on sediment distribution

2019 ◽  
pp. 199-210
Author(s):  
A. E. Kontorovich ◽  
L. M. Burshtein ◽  
B. L. Nikitenko ◽  
S. V. Ryzhkova ◽  
E. V. Borisov ◽  
...  
Keyword(s):  
Water Area ◽  
Natural Ecosystem ◽  
Iron Hydroxides ◽  
Marginal Filter ◽  
Living Matter ◽  
The West ◽  
Sediment Distribution ◽  
Late Diagenesis ◽  
Deep Water Part ◽  
Marine Basin

The West Siberian marine basin of the Volgian–initial Berriasian ages is described. It is shown that a marginal filter (according to A. P. Lisitsyn) functioned in the basin. The main mass of terrigenous sediments was deposited within the eastern margin of the sea. The central part of the basin only received a small amount of the terrigenous material. Water area of the West Siberian Sea was 2 mln 530 thou km2; eastern marginal filter, 535 thou km2; and open epicontinental marine basin, 1 mln 994 thou km2. Depth of the Volgian Sea was 500 m. Mass of sediments in the West Siberian Sea by the end of late diagenesis was 228.4 Tt (recalculated to the anhydrous material), with sediments in the eastern marginal filter accounting for 121.7 Tt. Bioproductivity of the Volgian–Berriasian West Siberian Sea was extremely high. The mass of living matter was composed of archaea, bacteria, and protozoan unicellular eucaryotes (organic-walled), as well as organisms with the siliceous (radiolarians) and carbonate skeleton (foraminifers and others). The rock mass formed from sediments of the central deep-water part of the basin at the stage of diagenesis was 106.7 Tt (recalculated to the anhydrous material), including the mass of organic matter (OM) accounting for 15.8 Tt; mineral (siliceous and carbonate) relicts of organisms, 67.8 Tt; and allothigenic components (clay minerals and iron hydroxides), 23.1 Tt. Analysis of the composition of kerogen (polymerlipids) revealed that the amount of OM transported to sediments was 15–20 times higher than the present-day amount in rocks of the Bazhenov Formation. At the stage of early diagenesis, the OM mass in sediments was as high as 235–320 Tt (recalculated to the anhydrous material). The Bazhenov Sea represented a huge natural ecosystem favorable for the generation, reworking, and accumulation of living matter relicts. At the stage of catagenesis, unique oil-andgas resources were generated from OM masses deposited in this system.

The ecology of sublittoral communities at Abereiddy Quarry, Pembrokeshire

1975 ◽  
Vol 55 (4) ◽  
pp. 833-864 ◽  
Author(s):  
K. Hiscock ◽  
R. Hoare
Keyword(s):  
Personal Communication ◽  
Sea Spray ◽  
The West ◽  
Ordnance Survey ◽  
Sea Bed ◽  
The Subject ◽  
The Vertical Distribution ◽  
Sheltered Area ◽  
Marine Basin ◽  
Serpulid Worms

Abereiddy Quarry is shown in Plate I. It lies at 51° 56′N, 5°13′W (Ordnance Survey Reference SM 795315), 6 km northeast of St Davids in Pembrokeshire (Text fig. 1). The quarry, a disused slate working, is surrounded by high cliffs except to the west where there is a channel open to the sea. In 1902–3, operations ceased and the quarry began to fill with fresh water and sea spray. During 1932–3 the west wall was breached to allow access to the sea so that the basin could be used as a harbour. Abereiddy is now a deep, fully saline marine basin which, at low water, is 66 m across from north to south with a surface area of 0.356 ha and a maximum depth of 24 m. In this situation it has been possible to observe sublittoral rocky sea-bed communities in an extremely sheltered area through a summer thermocline and associated oxycline. Abereiddy Quarry has previously been investigated by Bailey, Nelson-Smith & Knight-Jones (1967), who published details of the vertical distribution of Spirorbis spp. The biology of serpulid worms in Abereiddy Quarry has been the subject of continuing investigations carried out from University College Swansea (E. W. Knight-Jones, personal communication).

Volgian–Early Berriasian Marginal Filter in the West Siberian Marine Basin and Its Influence on Sediment Distribution

2019 ◽  
Vol 54 (3) ◽  
pp. 187-199
Author(s):  
A. E. Kontorovich ◽  
L. M. Burshtein ◽  
B. L. Nikitenko ◽  
S. V. Ryzhkova ◽  
E. V. Borisov ◽  
...  
Keyword(s):  
Marginal Filter ◽  
The West ◽  
Sediment Distribution ◽  
Marine Basin

Enumeration and Identification of Asbestos Fibres in Water

1974 ◽  
Vol 32 ◽  
pp. 526-527 ◽  
Author(s):  
O. Mudroch ◽  
J. R. Kramer
Keyword(s):  
Water Supply ◽  
Water Samples ◽  
Drainage Basin ◽  
Lake Superior ◽  
Research Work ◽  
List Type ◽  
The West ◽  
Asbestos Fibre ◽  
Amphibole Asbestos

Approximately 60,000 tons per day of waste from taconite mining, tailing, are added to the west arm of Lake Superior at Silver Bay. Tailings contain nearly the same amount of quartz and amphibole asbestos, cummingtonite and actinolite in fibrous form. Cummingtonite fibres from 0.01μm in length have been found in the water supply for Minnesota municipalities.The purpose of the research work was to develop a method for asbestos fibre counts and identification in water and apply it for the enumeration of fibres in water samples collected(a) at various stations in Lake Superior at two depth: lm and at the bottom.(b) from various rivers in Lake Superior Drainage Basin.

The fight to save Uganda’s White Rhino

1964 ◽  
Vol 2 (01) ◽  
pp. 6-12
Keyword(s):  
The West ◽  
West Nile ◽  
White Rhino

In the West Nile District of Uganda lives a population of white rhino—those relies of a past age, cumbrous, gentle creatures despite their huge bulk—which estimates only 10 years ago, put at 500. But poachers live in the area, too, and official counts showed that white rhino were being reduced alarmingly. By 1959, they were believed to be diminished to 300.

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