Results 71 to 80 of about 1,369 (163)

Sedimentation of the Oligocene-lower Miocene clinoforms of the Maikop formation in the Eastern and Central Pre-Caucasus region as a key criteria for reservoir exploration

open access: yesGeoresursy
Oligocene-Lower Miocene clinoforms of the Maikop formation are productive in the Eastern and Central Pre-Caucasus region. In spite of commercial discoveries and long exploration history, Maikop formation is poor characterized by borehole data in the deep
E. O. Babina   +9 more
doaj   +1 more source

Sequence Stratigraphy, Sedimentary Evolution, and Coal-Accumulation Model of the Lower Xishanyao Formation in the Nileke Sag, Yili Basin

open access: yesGeosciences
The Lower-Middle Jurassic Xishanyao Formation in the Nileke Sag of the Yili Basin contains substantial reserves of coal and coalbed methane (CBM). Elucidating its depositional evolution and the controlling factors of coal accumulation within a sequence ...
XinFei Wang   +4 more
doaj   +1 more source

Тhe geological structure and biostratigraphic division of amber-bearing Paleogene deposits of the «Drevlianska» site, Zhytomyr Polissia

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Problems Statement and Purpose. The relevance of this study is determined by the need to apply modern bio- and lithostratigraphic methods to clarify the age and paleogeographic conditions of accumulation of amber-bearing strata in Zhytomyr Polissya. This
Andriy Matveev   +3 more
doaj   +1 more source

Paleogeographic Conditions for the Evolution of Sedimentary Cover in the Lapev Sea Based on Seismic Facies Analysis

open access: yesGeoresursy
The Laptev Sea is an area of active exploration for hydrocarbons; however, estimations of its hydrocarbon potential vary significantly, both in terms of total hydrocarbon quantities and their phase composition. This variability is due to the absence of a
E. A. Lavrenova, G. A. Zavarzina
doaj   +1 more source

Causes of Changes in Mineralization of Underground Drinking Water in the Shaim Oil and Gas Region of the West Siberian Megabasin

open access: yesEarth
Mineralization of groundwater for drinking purposes is a complex parameter of groundwater chemical composition. In the Shaim oil- and gas-bearing area, as in the whole West Siberian megabasin, the main target horizon for solving the issues of domestic ...
Yulia Rusakova   +6 more
doaj   +1 more source

High‐Resolution Tracking of Baltica's Northward Drift in the Ordovician

open access: yesGeophysical Research Letters
We investigated the paleogeography of Baltica via a paleomagnetic study of 471‐454 Ma limestones from the Siljan (Sweden) impact structure. Stepwise thermal demagnetization isolated a well‐defined magnetization component that unblocks up to the Curie ...
Nastaran Ahanin, Stuart A. Gilder
doaj   +1 more source

The Cenomanian: stage of hindlimbed snakes

open access: yesCarnets de Géologie, 2003
Three "snakes with legs" are known: Pachyrhachis problematicus, Haasiophis terrasanctus and Eupodophis descouensi. They have short posterior limbs but lack an anterior girdle and forelimbs. Moreover, Pachyophis woodwardi, Mesophis nopcsai and Simoliophis
Rage Jean-Claude, Escuillié François
doaj  

Effects of paleogeographic changes and CO2 variability on northern mid-latitudinal temperature gradients in the Cretaceous. [PDF]

open access: yesNat Commun, 2023
Gianchandani K   +6 more
europepmc   +1 more source

Paleogeography of North America

open access: yesGeological Society of America Bulletin, 1909
Introduction 2 It is now nearly thirty-eight years since the writer found his first fossil at Cincinnati, Ohio, during the past twenty-four years of which he has devoted his entire time to invertebrate paleontology and Paleozoic stratigraphy. His professional service in these sciences had its initiative in association with E. O.
openaire   +2 more sources

Paleogeography of the Ryukyu Islands.

open access: yesTropics, 2000
Recent submarine, geological, and geophysical investigations including diving surveys reveal the geo-history of the Ryukyu Islands and the East China Sea. Two stages are fundamental for formation processes of the Ryukyu Arc. The crustal thinning in the western part of the East China Sea and thus eastward drifting of the Arc may have occurred in the ...
openaire   +2 more sources

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