Results 51 to 60 of about 3,951 (214)

THE ROOM FOR THE VENDIAN IN THE INTERNATIONAL CHRONOSTRATIGRAPHIC CHART [PDF]

Геология и геофизика, 2015
Abstract The Vendian was proposed by B.S. Sokolov as a stratigraphic subdivision comprising the last of the Proterozoic glacial periods (the Laplandian Glaciation) and the overlying strata delineated by a full stratigraphic range of fossil soft-bodied organisms. For over three decades the Vendian had been an informal part of the Standard
D.V. Grazhdankin, A.V. Maslov
openaire   +2 more sources

The Upper Kotlin clays of the Saint Petersburg region as a foundation and medium for unique facilities: an engineering-geological and geotechnical analysis

Записки Горного института, 2022
The article reviews the issues concerned with correctness of the engineering-geological and hydrogeological assessment of the Upper Kotlin clays, which serve as the foundation or host medium for facilities of various applications.
Regina E. Dashko, Georgiy A. Lokhmatikov
doaj   +1 more source

Lithofacies Features of the Botuobinsky Horizon of the Southeastern Part of the Srednebotuobinskoye Oil and Gas Condensate Field (Eastern Siberia)

Georesursy
The article presents the results of the lithofacies study of the Late Vendian Botuobinsky horizon of the southeastern part of the Srednebotuobinskoye field.
D. O. Smirnova, A. V. Mordasova, N. I. Korobova, V. Yu. Bliznyukov, R. S. Sautkin, M. E. Voronin, N. V. Alekseev   +6 more
doaj   +1 more source

Minerals in Afghanistan : The Aynak Copper Deposit [PDF]

, 2006
The area around Aynak, 30 km south-south-east of Kabul in south-east Afghanistan, has been the focus of copper working since ancient times. Numerous old excavations and pits, as well as remains of smelting furnaces, have been discovered at Aynak and ...
Benham, Antony John, Coats, Stan
core  

Palаeomagnetism of the Vendian traps of Volyn, southwestern margin of the East European platform. P. 1: palаeomagnetic directions and poles

Геофизический журнал, 2022
In Earth’s geological evolution the Vendian is significant because: 1) it preceded the «Cambrian Evolutionary explosion» when the multicellular organisms became suddenly much more diverse; 2) it is associated with the global tectonic and ...
V. G. Bakhmutov, I.B. Poliachenko, S.I. Cherkes, V.V. Shcherbakova, D.V. Hlavatskyi   +4 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  

Assessment of hard-to-recover oil reserves production potential in Tomsk region [PDF]

, 2016
The development of the licensed areas, profound geological exploration, enhanced oil recovery due to innovative technologies introduction and revitalization of oil production from unconventional horizons could significantly increase the oil production in
Grinkevich, L. S., Sharf, I. V.
core   +2 more sources

High specific activity of radium isotopes in baryte from the Czech part of the Upper Silesian Basin- An example of spontaneous mine water treatment [PDF]

, 2020
Radium-bearing barytes (radiobarytes) have been known since the beginning of the 20th century. They are mainly found as precipitates of low-temperature hydrothermal solutions. In anthropogenic environments, they frequently occur as crusts on oil industry
Alexa, Petr, Jirásek, Jakub, Matýsek, Dalibor, Osovský, Michal, Sivek, Martin, Uhlář, Radim   +5 more
core   +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

Results of Studying the Material Composition and U-Pb (LA-ICP-MS) Age of Detrital Zircons From Terrigenous Rocks of the Vanavara and Oskobinskaya Formations of the Kamov Arch of the Baikit Antelise

Georesursy
The paper presents the results of studies on sandstones from the Vanavara and Oskobinskaya formations, which are part of the Nepa and Torskiy regional stratigraphic horizons, respectively. These formations were studied using the core from the Yur-92 deep
A. V. Plusnin, Z. L. Motova, I. V. Afonin, E. M. Tomilina, D. A. Staroselets, E. E. Belozerov, I. R. Khalikov, M. V. Shaldybin, I. A. Yashin, V. A. Fomin   +9 more
doaj   +1 more source