Results 31 to 40 of about 1,054 (150)

U-Pb (LA-ICP-MS) age of detrital zircons and the sources of terrigenous sediments of the Ipsit suite, Karagass series (Sayan segment of the Sayan-Baikal-Patom belt)

Геодинамика и тектонофизика, 2018
The petrographic, lithogeochemical and U-Pb (LA-ICP-MS) geochronological studies were carried out to investigate the terrigenous rocks sampled from the lower part of the Ipsit suite of the Karagass series (Sayan segment of the Sayan-Baikal-Patom belt ...
Z. L. Motova, T. V. Donskaya, D. P. Gladkochub, V. B. Khubanov   +3 more
doaj   +1 more source

Iso-Naakkima, a circular structure filled with Neoproterozoic sediments, Pieksämäki, southeastern Finland [PDF]

Bulletin of the Geological Society of Finland, 1993
A circular Bouguer gravity anomaly with a minimum of -4.0 mGal and half amplitude width of 2 km was recognized at Lake Iso-Naakkima (62°11'N, 27°09'E), southeastern Finland.
S. Elo, T. Kuivasaari, M. Lehtinen, O. Sarapää, A. Uutela   +4 more
doaj   +1 more source

Redox bottom-water conditions in Neoproterozoic basins on eastern and north-eastern periphery of East-European Platform

Литосфера, 2015
The redox bottom-water conditions in the sedimentary basins, which existed during the Late Riphean-Vendian on the east and north-east (in modern coordinates) margins of the Baltic, are investigated.
A. V. Maslov, V. N. Podkovyrov
doaj   +2 more sources

The crustal structure of Onega-Kandalaksha paleorift identified by complex analysis of the anomalous magnetic field of the White Sea

Геодинамика и тектонофизика, 2018
Geological and geophysical studies recently conducted in the White Sea and the adjacent territory have provided new data on the deep structure of this region.
A. S. Baluev, Yu. V. Brusilovsky, A. N. Ivanenko   +2 more
doaj   +1 more source

The Cambrian-Ordovician siliciclastic platform of the Balcarce Formation (Tandilia System, Argentina) : Facies, trace fossils, palaeoenvironments and sequence stratigraphy [PDF]

, 2003
The Lower Palaeozoic sedimentary cover of the Tandilia (Balcarce Formation) is made up of thick quartz arenite beds together with kaolinitic claystones and thin fine-grained conglomerates.
Poiré, D. G., Spalletti, L. A., Spalletti, L.A., Valle, A. del   +3 more
core   +2 more sources

The role of proterozoic sediments in the formation of oil and gas content in the northern part of the Volga-Ural oil and gas basin (based on the results of basin modeling)

Georesursy
Two-dimensional basin modeling was carried out along regional profiles (sublatitudinal and submeridional). When modeling, the software package of Lomonosov Moscow State University was used.
D. D. Kozhanov, M. A. Bolshakova, I. S. Khopta   +2 more
doaj   +1 more source

THE RIPHEAN MAGMATISM PRECEDING THE OPENING OF URALIAN PALEOOCEAN: GEOCHEMISTRY, ISOTOPES, AGE, AND GEODYNAMIC IMPLICATIONS

Геодинамика и тектонофизика, 2018
The rocks from different stages of the geodynamic evolution have been preserved in the Urals. In its geologic history, the least studied is the transition period between continental rifting and the beginning of oceanic spreading.
V. V. Kholodnov, G. Yu. Shardakova, G. B. Fershtater, E. S. Shagalov   +3 more
doaj   +1 more source

MICROPALEONTOLOGY OF THE LOWER MESOPROTEROZOIC ROPER GROUP, AUSTRALIA, AND IMPLICATIONS FOR EARLY EUKARYOTIC EVOLUTION [PDF]

, 2016
ELiTE: Early Life Traces, Evolution, and Implications for ...
Javaux, Emmanuelle, Knoll, Andrew H.
core   +1 more source

Covariance of Microfossil Assemblages and Microbialite Textures Across an Upper Mesoproterozoic Carbonate Platform [PDF]

, 2013
Early diagenetic chert nodules and beds in the upper Mesoproterozoic Angmaat (formerly Society Cliffs) Formation, Baffin and Bylot islands, preserve microfossils and primary petrofabrics that record microbial mat deposition and lithification across a ...
Kah, Linda C., Knoll, Andrew Herbert, Wörndle, Sarah   +2 more
core   +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