Results 1 to 10 of about 287 (153)

LITHOLOGICAL AND FACIAL FEATURES, COMPOSITION, AND SEDIMENTATION CONDITIONS OF TERRIGENOUS-CARBONATE ROCKS OF THE MOTY GROUP (SHAMAN CLIFF, IRKUTSK REGION)

Геодинамика и тектонофизика, 2021
We have studied terrigenous-carbonate rocks in the area near the Sayan mountains in the Irkutsk Region (Russia), specifically at the Shaman Cliff, being the stratotype area of rocks that belong to the Moty group.
Z. L. Motova, A. V. Plyusnin, E. V. Nikulin   +2 more
doaj   +1 more source

Correlation of Proterozoic-Phanerozoic deep wells sections targeting Aldan-Maya area petroleum potentiality estimation [PDF]

Нефтегазовая геология: Теория и практика, 2022
The article discusses the debatable issues of well log correlation of the Riphean, Vendian, Cambrian and Mesozoic sections, promising for the search for oil and gas in the Aldan-Maya potentially petroleum bearing region. The author's proposed correlation
Fomin A.M., Konstantinova L.N., Gubin I.A., Moiseev S.A.   +3 more
doaj   +1 more source

Provenance of zircon of the lowermost sedimentary cover, Estonia, East-European Craton [PDF]

Bulletin of the Geological Society of Finland, 1999
Bulk and accessory mineral composition of fresh and weathered crystalline rocks, and sedimentary deposits overlying the crystalline-sedimentary unconformity have been examined in core samples from 28 drill holes in Estonia.
M. Konsa, V. Puura
doaj   +1 more source

Provenance reconstructions. Article 3. Modern research methods for heavy detrital minerals (garnet, tourmaline, chromespinelide, rutile, chloritoid, pyroxene and amphibole)

Литосфера, 2020
Research subject. This article considers accessory minerals, which, unlike zircons, are present in the vast majority of common clastic rocks. Materials and methods.
L. V. Badida, A. V. Maslov, G. A. Mizens
doaj   +1 more source

PROVENANCES AND SEDIMENTATION SETTINGS OF THE VENDIAN TERRIGENIC ROCKS OF THE SOUTHERN PART OF NEPA-BOTUOBA ANTECLISE (SIBERIAN PLATFORM)

Геодинамика и тектонофизика, 2022
This paper presents the results of petrographic, lithogeochemical, and U-Pb geochronological studies of detrital zircons in deep core sediments from the Vendian terrigenous sequences of the Nepa and Tira formations in the interior of the Siberian ...
Z. L. Motova, A. V. Plyusnin
doaj   +1 more source

C- AND Sr-ISOTOPE CHEMOSTRATIGRAPHY OF THE UPPER PROTEROZOIC – LOWER CAMBRIAN TRANSITIONAL DEPOSITS IN THE LENA-ANABAR TROUGH (NORTHEASTERN SIBERIAN PLATFORM)

Геодинамика и тектонофизика, 2023
Studies have been made of the carbon and strontium isotope composition in carbonate sediments of the Khorbusuonka group and Kessyusa formation corresponding to the Upper Vendian in deep Khastakhskaya-930 and Burskaya-341-0 boreholes at the northeastern ...
B. B. Kochnev, B. G. Pokrovsky, A. B. Kuznetsov   +2 more
doaj   +1 more source

Variations of Th/U values in Vendian clayey rocks of north-east East-European Platform and Middle and Southern Urals as reflection redox status of sedimentary basins

Литосфера, 2017
Earlier, we considered the features of the redox changes in the near-bottom layer of water in the sedimentation basins that existed during the Late Riphean and Vendian in the eastern and northeastern (in modern coordinates) margins of the Baltic.
Andrey V. Maslov, Viktor N. Podkovyrov
doaj   +1 more source

Provenance reconstructions. Article 2. Litho- and isotope-geochemical approaches and methods

Литосфера, 2020
Research subject. In this paper, we consider specific features of the use of litho- and isotopic-geochemical data for the purposes of provenance reconstruction.Methods and materials.
A. V. Maslov, O. Yu. Melnichuk, G. A. Mizens, Yu. V. Titov, M. V. Chervyakovskaya   +4 more
doaj   +1 more source

Bashkirian meganticlinorium: Late Riphean-Vendian hiatuses and possible transformations of basin provenances

Литосфера, 2020
The object of research. At the top of the Upper Riphean-Vendian sedimentary sequence of the Bashkirian meganticlinorium (western and central parts of the named structure, corresponding to the stratotypical locality of Riphean) there is a series of fairly
А. V. Maslov
doaj   +1 more source

GROUNDWATER EXCHANGE IN THE BALTIC SHIELD MARGINAL AREAS AND ADJACENT ARTESIAN BASINS BASED ON ISOTOPE AND HYDROCHEMISTRY DATA. SCIENTIFIC PROBLEMS AND PRACTICAL APPLICATIONS. KARELIAN ISTHMUS

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016
Water chemical and isotopic composition (deuterium content and oxygen-18), as well as the activity of tritium in groundwater of Riphean aquifer and Vendian complex in the Karelian Isthmus were studied.
Grigory Voroniuk, Galina Borodulina, Irina Krainyukova, Igor Tokarev   +3 more
doaj   +1 more source