Results 61 to 70 of about 1,186 (177)

Geochemical features of the Biryan subformation of the Upper Riphean Zilmerdak formation in connection with the issues of ore genesis (Zilmerdak ridge, Southern Ural) [PDF]

open access: hybrid, 2023
С. В. Мичурин   +3 more
openalex   +1 more source

Formation features and a geodynamic map of the Ural-Timan-Paleo-Asian segment of Eurasia

open access: yesЛитосфера, 2020
Research subject. This article is devoted to the formation features of the Ural-Timan-Paleo-Asian segment of Eurasia. Materials and methods. The research was based on the authors’ data and those obtained following a review of available publications on ...
V. A. Koroteev   +3 more
doaj   +1 more source

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

open access: yesГеодинамика 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   +2 more
doaj   +1 more source

Strontium Isotopic Variations of Neoproterozoic Seawater: Implications for Crustal Evolution [PDF]

open access: yes, 1991
We report high precision Sr isotopic data on carbonates from the Neoproterozoic Shaler Group, Victoria Island, Northwest Territories, Canada. Lithostratigraphic correlations with the relatively well-dated Mackenzie Mountains Supergroup constrain Shaler ...
Asmerom, Yemane   +4 more
core   +1 more source

Structure and petroleum prospects of the northern part of the Barents-Kara Sea region

open access: yesGeoresursy
The geological structure and the petroleum potential of the western part of the Russian Arctic shelf are still matter for disputes, especially due to the absence of deep drilling and scarce data.
A. A. Suslova   +8 more
doaj   +1 more source

Petrogenetic processes in the ultramafic, alkaline and carbonatitic magmatism in the Kola Alkaline Province: a review [PDF]

open access: yes, 2005
Igneous rocks of the Devonian Kola Alkaline Carbonatite Province (KACP) in NW Russia and eastern Finland can be classified into four groups: (a) primitive mantle-derived silica-undersaturated silicate magmas; (b) evolved alkaline and nepheline syenites; (
Balaganskaya, E.   +4 more
core   +1 more source

The Timan-Pechora basin. The structure and main stages of development

open access: yesGeoresursy, 2017
The lack of complete inheritance in the history of the Timan-Pechora basin development has led to a discrepancy between the basement surface plans and the individual sub-levels and their complexes. In the lower part of the section, the structures inherit
A.V. Stoupakova
doaj   +1 more source

Geotectonic model of the Alpine development of Lakavica graben in the eastern part of the Vardar zone in the Republic of Macedonia [PDF]

open access: yes, 2013
Lakavica graben is located in the eastern subzone of the Vardar zone, which during the Alpine orogenesis was covered with very complex processes of tectogenesis.
Dimov, Gorgi   +2 more
core   +1 more source

Lithogenesis of vend-cambrian deposits of southwest slope of Baikitskaya anteclase (based on the study of the section of the Irinchiminskaya parametrical well 155 in East Siberia) [PDF]

open access: yes, 2001
The results of the study of sedimentation conditions and the subsequent diagenetic, catagenetic and imposed epigenetic rock transformations in the section have been examined. The display in the cut of epigenetic changes of rock and expansion of bitumoids
Stolbova, Nellie Feodorovna   +3 more
core   +1 more source

First Results of the Intraformational Conglomerate Test of the Late Riphean Katav Formation (Southern Urals)

open access: yesУчёные записки Казанского университета: Серия Естественные науки
Detailed petrographic, electron-microscopic, and paleomagnetic studies were conducted on flatbedded synsedimentary carbonate breccias from three blocks of rocks (one block from Minyar, two blocks from Katav-Ivanovsk) to verify the ideas about the time of
N. P. Parfiriev   +3 more
doaj   +1 more source

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