Results 111 to 120 of about 63,261 (236)

Strontium Isotope Stratigraphy of the Middle–Upper Devonian: Data for the Conodonts from the Central Part of the Volga–Ural Petroleum Province

Georesursy
This study presents the first 87Sr/86Sr isotope data for the Middle–Upper Devonian strata of the central part of the Volga–Ural petroleum province, which are based on ramiform conodont elements.
D. K. Nurgaliev, G. M. Sungatullina, N. G. Nourgalieva, V. V. Silantiev, A. V. Zhuravlev, A. V. Chugaev, D. N. Miftakhutdinova, Y. V. Goltsman, B. I. Gareev   +8 more
doaj   +1 more source

Sedimentary provenance of siliciclastic rocks from the Lalla Mouchaa Calcschists Formation (Coastal Block, Western Rehamna): Evidence of denudation of ca. 2 Ga basement in the Moroccan Meseta. [PDF]

, 2018
Paleoproterozoic basement rocks (ca. 2Ga) are scarce along the European and North African Paleozoic mountain chains (Fig.1a). In Morocco, ca. 2.2-2Ga granitic rocks (Gasquet et al., 2008; Kouyaté et al., 2013) have been exclusively reported in the ...
El Attari, A., El Houicha, M., Ennih, N., Ezzouhairi, H., Fekkak, A., Gama, C., Jouhari, A., Pereira, M.F., Silva J.B.   +8 more
core  

Sedimentation model of the middle Devonian clastic succession of the South Tatar Arch, Pashyian Regional stage, Volga-Ural Oil and Gas Province, Russia

Georesursy
The Pashyian Regional stage (horizon) is the main productive unit of the middle Devonian clastic succession of the South Tatar arch. This article presents, for the first time, maps of the lower and upper parts of the Pashyian, including data on sand ...
V. V. Silantiev, M. F. Validov, D. N. Miftakhutdinova, V. P. Morozov, B. G. Ganiev, A. A. Lutfullin, K. D. Shumatbaev, R. M. Khabipov, N. G. Nurgalieva, Z. A. Tolokonnikova, E. A. Korolev, V. A. Sudakov, A. V. Smirnova, K. A. Golod, A. A. Leontiev, R. R. Shamsiev, M. V. Noykin, V. E. Kosarev, D. A. Nikonorova, R. F. Akhmetov   +19 more
doaj   +1 more source

Modeling of Salt Tectogenesis in Connection With the Choice of the Main Directions for the Search For Hydrocarbon Deposits and Hydromineral Raw Materials Within the Kempendyai Depression (South-East оf the Siberian Platform)

Georesursy
A brief description of the geological structure of the sedimentary cover within the Kempendyai depression is given, in which two intervals of formation of unstable layers in the Cambrian and Devonian are distinguished, and their salt saturation is ...
B. V. Lunev, I. A. Gubin, V. V. Lapkovsky, R. V. Marinov   +3 more
doaj   +1 more source

Geological Time Capsule Part I [PDF]

This brief review of Earth history starts with the Archeozoic Period and goes through the Devonian Period. It explains time divisions and that the basic unit of geologic time is the period, which comprises two or more epochs, and that an era consists of ...

core  

Evaluation of existing knowledge of the tectonic history and lithospheric structure of South America [PDF]

While data is available on the lithospheric and crustal structure of the Andes region of South America, there is limited knowledge of these aspects of the eastern portion of the continent.
Keller, G. R., Lidiak, E. G.
core   +1 more source

U-Pb Detrital Zircon Geochronology and Its Tectonic Implications for the Middle Devonian at the Northwestern Margin of the Yangtze Block. [PDF]

ACS Omega
Guo T, Yang WF, Zeng L, Wang C.
europepmc   +1 more source

Massive wildfires followed oceanic anoxic events during the Late Devonian Frasnian-Famennian mass extinction. [PDF]

Sci Adv
Lu M, Sun Y, Duan G, Ikejiri T, Liu N, Luo Q, Lv D, Carroll R, Lu Y.   +8 more
europepmc   +1 more source

Early sarcopterygian morphological disparity through the Devonian-Carboniferous crisis. [PDF]

Sci Rep
Vanhaesebroucke O, Larouche O, Cloutier R.   +2 more
europepmc   +1 more source

New Record of the <i>Hueberia</i> from the Posongchong Formation, Pragian Stage, Lower Devonian Series in the Bainiuchang Area, Southeastern Yunnan, China. [PDF]

Life (Basel)
Hu Y, Zhang S, Chen L, Chen X, Xiao S, Yin H, Zuo R, Wang T, Yang X.   +8 more
europepmc   +1 more source