Results 51 to 60 of about 242 (131)

The sources of zircons in clastic rocks of the Riphean deposits of the Urals

Доклады Академии наук, 2019
New age determinations of detrital zircons of sandstones augmented the possibilities of interpretation of their provenance. This interpretation is often restricted by a formal comparison of age-and-composition characteristics of detrital crystals with any very distant model objects.
A. A. Krasnobaev, V. N. Puchkov, N. D. Sergeeva, S. V. Busharina   +3 more
openaire   +2 more sources

Geochemical background of Berezovsky depression oil and gas potential (eastern Siberia)

Georesursy
Berezovsky depression, located on the northeast of the Pre-Patom foredeep, is a promising target for hydrocarbon prospecting, as evidenced by oil and gas shows established while drilling, the presence of structures and natural reservoirs.
N. P. Fadeeva, N. V. Morozov, E. A. Bakay, S. V. Frolov   +3 more
doaj   +1 more source

Pre-Ordovician phosphorites and paleooceanography: a brief excursus into geochemical systematics of rare earth elements

Литосфера, 2017
This publication provides an overview of the rare earth elements systematics in Pre-Ordovician phosphorites from various regions of the world. Based on the analysis of significant data bank it shows that currently there are no universal parameters ...
A. V. Maslov
doaj  

Riphean magmatism and ore formation, preceding the disclosure of the Uralian Paleoocean (western slope of the Southern Urals)

Литосфера, 2017
The analysis of the evolution of composition and mineral occurences of the Low and Middle Riphean magma-tic rocks from the riftogenic structures of the Bashkirian anticlinorium involving of some neighboring structures from the western slope of the ...
V. V. Holodnov, G. B. Fershtater, E. S. Shagalov, G. Yu. Shardakova   +3 more
doaj   +2 more sources

DETRITAL ZIRCONS FROM THE PRECAMBRIAN OF THE IGARKA UPLIFT (NORTHWESTERN SIBERIAN PLATFORM)

Геодинамика и тектонофизика
Herein we report the results of LA-ICP-MS dating of detrital zircons from eight stratigraphic levels of the Proterozoic section of the Igarka uplift (northwestern Siberian Platform).
B. B. Kochnev, D. V. Semenova, V. B. Khubanov, M. K. Danukalova, V. V. Marusin, A. K. Khudoley   +5 more
doaj   +1 more source

DETRITAL ZIRCON PROVENANCES FOR SANDSTONES OF THE AI AND BOL’SHOI INZER FORMATIONS (RIPHEAN STRATOTYPE, SOUTHERN URALS)

Геодинамика и тектонофизика
When the maxima on the relative probability density curves of age of detrital zircons from the basal sandstones of the of the Riphean prototype (Ai and Bol’shoi Inzer formations, Southern Urals) are compared with the time intervals of formation of ...
A. V. Maslov, V. B. Ershova, O. Yu. Melnichuk, S. A. Dub, M. T. Krupenin, L. V. Badida   +5 more
doaj   +1 more source

TECTONICS AND GEOLOGICAL STRUCTURE OF THE MAYA-KYLLAKH ZONE (SOUTH VERKHOYANSK REGION) OBTAINED FROM BALANCED CROSS-SECTIONS

Геодинамика и тектонофизика
A technique for balancing cross-sections is used to construct geometrically consistent structural sections through fold-thrust belts. Unlike the predecessor studies, the balanced cross-sections in this study were obtained using the deep seismic sounding ...
Е. А. Pavlovskaia, А. К. Khudoley
doaj   +1 more source

Riphean phosphate-bearing carbonaceous quartzites

Vestnik of Institute of Geology of Komi Science Center of Ural Branch RAS, 2017
I. I. Golubeva, V. V. Ulyashev, V. N. Filippov   +2 more
openaire   +1 more source

Sills and gas generation in the Siberian Traps. [PDF]

Philos Trans A Math Phys Eng Sci, 2018
Svensen HH, Frolov S, Akhmanov GG, Polozov AG, Jerram DA, Shiganova OV, Melnikov NV, Iyer K, Planke S.   +8 more
europepmc   +1 more source

Fossil evidence of the zygomycetous fungi. [PDF]

Persoonia, 2013
Krings M, Taylor TN, Dotzler N.
europepmc   +1 more source