Results 61 to 70 of about 1,847 (178)

FEATURES OF GEOLOGICAL STRUCTURE AND PROSPECTS OF OIL-AND-GAS BEARING CAPACITY OF THE RIPHEAN AND VENDIAN DEPOSITS IN THE SOUTHEASTERN PART OF THE KAMO ARCH OF THE BAYKIT ANTICLISE

Геодинамика и тектонофизика
The paper presents the results of the integrated study of the features of geological structure of the southeastern Kamo arch of the Baikit anticlise. Use has been made of both already published and unpublished geological-geophysical data obtained through
V. A. Fomin, A. G. Vakhromeev, Z. L. Motova, A. V. Strunov, D. V. Mashenkin, V. V. Fomina, A. V. Plusnin   +6 more
doaj   +1 more source

Fragment of a central-type large structure located in southern Uganda and its metallogenic value

Известия высших учебных заведений: Геология и разведка, 2020
For the southern regions of Uganda, the metallogenic value of the regional arc belt of dikes of the main and ultrabasic composition was considered. It is shown that it is part of the arc sector of a large central-type structure with a diameter of about ...
P. A. Ignatov, A. A. Ivanov, A. V. Abramov, J. Kasigwa   +3 more
doaj   +1 more source

Integrated chronostratigraphy of Proterozoic-Cambrian boundary beds in the western Anabar region, northern Siberia [PDF]

, 1996
Carbonate-rich sedimentary rocks of the western Anabar region, northern Siberia, preserve an exceptional record of evolutionary and biogeochemical events near the Proterozoic/Cambrian boundary. Sedimentologically, the boundary succession can be divided
Adams, William, Grotzinger, John P., Jacobsen, Stein B., Kaufman, Alan J., Knoll, Andrew H., Semikhatov, Mikhail A.   +5 more
core  

Carbonate sedimentation through the late Precambrian and Phanerozoic [PDF]

, 1999
The global sediment mass-age distribution indicates large variations in the rates of carbonate sedimentation through time. The largest mass of carbonate deposited during the entire history of the earth was produced during the Cambrian, possibly ...
Hay, William W.
core  

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

, 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, Butterfield, Nicholas J., Jacobsen, Stein B., Knoll, Andrew, Swett, Keene   +4 more
core   +1 more source

Ore-forming Сonditions of the Blagodat Gold Deposit in the Riphean Metamorphic Rocks of the Yenisey Ridge According to Geochemical and Isotopic Data [PDF]

, 2009
Neodymium and strontium isotopic composition and rare earth elements (REE) distribution pattern have been determined in whole rocks and minerals were separated from host metamorphic rocks and disseminated sulfide ores of the Blagodat gold deposit ...
Gertner, Igor F., Kolmakov, Yuri V., Krasnova, Tatyana S., Leontyev, Sergey I, Poleva, Tatyana V., Sazonov, Anatoly M., Tishin, Platon A., Zvyagina, Elena A.   +7 more
core  

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

, 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., Beard, Andy, Demaiffe, D., Downes, Hilary, Liferovich, R.   +4 more
core   +1 more source

Problems of the time of foundation and the tectonic evolution of the Onega — Kandalaksha paleorift in the light of the data of isotopic geochronology

Известия высших учебных заведений: Геология и разведка, 2018
Kandalaksha graben, located in the water-area of the White sea, is a part of the Onega-Kandalaksha paleorift of the Riphean time of foundation. It is filled with the terrigenous formations of the Terskaya suites ranging from 3 to 8 km by depth, while the
A. S. Baluev, S. Yu. Kolodyazhny, E. N. Terekhov, V. A. Lebedev, P. A. Serov   +4 more
doaj   +1 more source

To reconstruction of the river’s categories which formed sedimentary basins of Riphean basins in the region of the Eastern European platform and modern south Urals juncture

Известия высших учебных заведений: Геология и разведка, 2019
Information on the distribution of trace and rare-earth elements in the bottom sediments of estuarine zones of various river categories (large rivers, rivers draining water collections, composed of sedimentary or magmatic and metamorphic rocks, etc.) of ...
A. V. Maslov
doaj   +1 more source

Global implication of mesoproterozoic (~ 1.4 Ga) magmatism within the Sette-Daban Range (Southeast Siberia). [PDF]

Sci Rep, 2021
Malyshev SV, Ivanov AV, Khudoley AK, Marfin AE, Kamenetsky VS, Kamenetsky MB, Lebedeva OY.   +6 more
europepmc   +1 more source