scholarly journals Rare earth element contents in high pCO2 groundwaters of Sakhalin Island (the Far East of Russia)

2019 ◽  
Vol 98 ◽  
pp. 01008
Author(s):  
George Chelnokov ◽  
Ivan Bragin ◽  
Natalia Kharitonova
Keyword(s):  
Rare Earth ◽  
Russian Far East ◽  
Far East ◽  
Sakhalin Island ◽  
Mineral Waters ◽  
High Pco2 ◽  
Rock Interaction ◽  
The North ◽  
Reducing Conditions ◽  
Reducing Environment

The geochemistry of rare earth elements in cold, high pCO2 mineral waters was studied through the sampling of springs and boreholes of Sakhalin Island (the Russian Far East). The main common features of studied waters are the Na-Cl-HCO3 hydrochemical type, high TDS (6–20 g/L), alkaline pH (6.2–7.4), and reducing environment (-195 to +62 mV). The North American Shale Composite-normalized patterns of groundwaters exhibited a heavy REEs enrichment with high positive Eu anomalies. Both, positive and negative Ce anomalies were detected in CO2-rich mineral waters. The distinct positive Eu/Eu* in waters indicates water-rock interaction processes and positive Ce/Ce* corresponds to reducing conditions. The various processes responsible for negative Ce anomaly in reducing environment are described.

Lichens of swamp complexes of Sakhalin Island (Sakhalin Region, Russian Far East)

2021 ◽  
Vol 55 (2) ◽  
pp. 405-426
Author(s):  
I. F. Skirina ◽  
N. A. Tsarenko ◽  
F. V. Skirin
Keyword(s):  
Species Composition ◽  
Russian Far East ◽  
Far East ◽  
Sakhalin Island ◽  
The South ◽  
Red Lists ◽  
The Far East ◽  
First Time ◽  
Lichen Flora

This paper presents the results of the study of lichen flora in swamp complexes of Sakhalin Island, obtained during expeditionary research in 2005–2009 and 2014–2020. The revealed species composition of lichens includes 172 species. The 28 of them are new for Sakhalin and 93 are new for the island swamp complexes. Bryocaulon pseudosatoanum is included in the regional and federal Red lists. Lecidea nylanderi is new to the south of the Far East. The information about substrates, habitats and locations is given for all species. The data on the distribution in the south of the Far East and, in some cases for all Far East, are listed for selected species that are new for Sakhalin Island and the south of the Far East. For the first time, a characteristic of the distribution of lichens in oligotrophic, eutrophic and mesotrophic bogs of Sakhalin Island is given.

scholarly journals New records of lichens from the Russian Far East. III. Lichens of coastal habitats

Turczaninowia ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 25-36
Author(s):  
Evgeny A. Davydov ◽  
Lidia S. Yakovchenko ◽  
Irina A. Galanina ◽  
Alexander G. Paukov ◽  
Ivan V. Frolov ◽  
...  
Keyword(s):  
New Records ◽  
Russian Far East ◽  
Far East ◽  
Sakhalin Island ◽  
Kuril Islands ◽  
Coastal Habitats ◽  
The Russian Far East

Aspicilia subepiglypta, Buellia subdisciformis, Calogaya arnoldii, Flavoplaca flavocitrina, Lecanora swartzii, and Lecidella scabra are reported as new records for the Russian Far East. Rinodina gennarii and Lecidella asema are newly recorded for the mainland of the Russian Far East. Rare lichens Cladonia subconistea and Leptotrema litophila are newly found in coastal habitats; Caloplaca atroflava is new for Sakhalin Island, and Umbilicaria vellea is new for Kuril Islands.

Geochemistry of mineral waters and associated gases of the Sakhalin Island (Far East of Russia)

2018 ◽  
Vol 559 ◽  
pp. 942-953 ◽  
Author(s):  
George A. Chelnokov ◽  
Ivan V. Bragin ◽  
Natalia A. Kharitonova
Keyword(s):  
Far East ◽  
Sakhalin Island ◽  
Mineral Waters ◽  
Far East Of Russia

U.S.-Russian Relations and the North Korean Crisis: A Role for the Russian Far East?

Asian Survey ◽  
2005 ◽  
Vol 45 (5) ◽  
pp. 722-735 ◽  
Author(s):  
James Clay Moltz
Keyword(s):  
United States ◽  
North Korea ◽  
Russian Far East ◽  
Far East ◽  
The United States ◽  
Energy Reserves ◽  
Nuclear Program ◽  
The North ◽  
History Of ◽  
The Russian Far East

Because of its energy reserves and long history of economic links with North Korea, the Russian Far East could provide useful incentives needed to help convince Pyongyang to abandon its nuclear program. For this reason, the United States should begin crafting a regionally based strategy that includes Russia.

Neovochthonius nom. nov. pro Neochthonius Karppinen (Acari, Oribatei, Protoplophoroidea, Heterochthoniidae)

Zootaxa ◽  
2009 ◽  
Vol 1992 (1) ◽  
pp. 68
Author(s):  
MARK L. I. JUDSON
Keyword(s):  
Russian Far East ◽  
Far East ◽  
Single Species ◽  
Sakhalin Island ◽  
Junior Synonym ◽  
Related Genus ◽  
The Past ◽  
Valid Genus

The oribatid genus Neochthonius Karppinen in Golosova & Karppinen, 1984 was erected for a single species of Heterochthoniidae, Neochthonius latisetosus Golosova & Karppinen, 1984, from Sakhalin Island, Russian Far East (Golosova & Karppinen 1984). As noted by Judson (1995), this name is preoccupied by the pseudoscorpion genus Neochthonius Chamberlin, 1929. Although sometimes treated as a synonym of Kewochthonius Chamberlin, 1929 [now a junior synonym of Chthonius C. L. Koch, 1843] in the past, Neochthonius Chamberlin is currently considered to be a valid genus, containing four species from California, U.S.A. (Judson 1990; Muchmore 1996). Despite repeated letters to Dr Karppinen (the first sent in 1991), advising him that Neochthonius Karppinen was preoccupied, no replacement name has been published and I am informed that he has now given up all zoological activity (R. Penttinen, in litt.). In order to remove this homonymy, Neochthonius Karppinen, 1984 is here replaced with Neovochthonius nom. nov. (etymology: Latin prefix ne-, meaning ‘not’, added to the name of the related genus Ovochthonius; gender masculine). Neochthonius latisetosus Golosova & Karppinen, 1984 therefore becomes Neovochthonius latisetosus (Golosova & Karppinen, 1984) comb. nov. No other species have been assigned to this genus.

scholarly journals Chronology of Prehistoric Cultural Complexes of Sakhalin Island (Russian Far East)

Radiocarbon ◽  
2004 ◽  
Vol 46 (1) ◽  
pp. 353-362 ◽  
Author(s):  
Yaroslav V Kuzmin ◽  
Alexander A Vasilevski ◽  
Sergei V Gorbunov ◽  
G S Burr ◽  
A J Timothy Jull ◽  
...  
Keyword(s):  
Middle Ages ◽  
Iron Age ◽  
Russian Far East ◽  
Far East ◽  
Sakhalin Island ◽  
Upper Paleolithic ◽  
Early Iron Age ◽  
Radiocarbon Dates ◽  
Continuous Sequence ◽  
The Middle Ages

A chronological framework for the prehistoric cultural complexes of Sakhalin Island is presented based on 160 radiocarbon dates from 74 sites. The earliest 14C-dated site, Ogonki 5, corresponds to the Upper Paleolithic, about 19,500–17,800 BP. According to the 14C data, since about 8800 BP, there is a continuous sequence of Neolithic, Early Iron Age, and Medieval complexes. The Neolithic existed during approximately 8800–2800 BP. Transitional Neolithic-Early Iron Age complexes are dated to about 2800–2300 BP. The Early Iron Age may be dated to about 2500–1300 BP. The Middle Ages period is dated to approximately 1300–300 BP (VII–XVII centuries AD).

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