Results 41 to 50 of about 1,803 (171)

Prospects for Oil Bearing Capacity of the Pre-Jurassic Formations within the Khanty-Mansiysk-Frolovsk Search Area

open access: yesBulletin of Science and Practice
The low hydrocarbon potential of the pre-Jurassic rocks of Khanty-Mansiysk Autonomous Okrug - Yugra has, on the one hand, a geological justification, but on the other hand, the degree of this justification raises serious doubts due to the extremely low ...
O. Biryukova, M. Konovalenko
semanticscholar   +1 more source

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva   +2 more
wiley   +1 more source

Pb, Sr and Nd Isotope Ratios of Permian-Triassic Flood Basalts in the Basement of the West Siberian Plate [PDF]

open access: yes, 2018
Permian-Triassic flood basalts are widespread across an extremely large area of the Siberian plate in the pre-Jurassic basement of the West Siberian plate.
Streletskaya, M. V.   +9 more
core   +1 more source

Hydrodynamic features of oil and gas bearing deposits of the southern areas of Ob-Irtysh interfluves

open access: yesGeoresursy, 2019
The results of study of hydrogeological conditions of oil and gas bearing deposit of the southern areas of Ob-Irtysh interfluves (southern regions of West Siberian basin) are presented. The hydrodynamic field is characterized by direct dependence and the
Dmitry A. Novikov   +3 more
doaj   +1 more source

Hot and cold deserts as eco‐evolutionary arenas for understanding plant resistance to multiple abiotic stressors

open access: yesBiological Reviews, EarlyView.
ABSTRACT During their long evolutionary history, land plants have evolved a range of adaptations to different abiotic stressors. These help explain present‐day diversity and distribution patterns, as well as the potential resilience of natural and agricultural systems to a changing climate. Most previous research has focused on adaptation to individual
Marc Fradera‐Soler   +6 more
wiley   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

ANALYSIS OF METHODS FOR CONSTRUCTING A GEOLOGICAL MODEL OF THE PRE-JURASSIC COMPLEX ON THE EXAMPLE OF THE SEVERO-KALINOVOE DEPOSIT

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2023
The relevance of the research is caused by the widespread use of geological modeling as a method for studying oil and gas deposits of the terrigenous rock complex and the Paleozoic ones. The Paleozoic complex, in comparison with the terrigenous one, has a specific geological structure and is less researched, therefore the problems of the Paleozoic are ...
Evgenia Yu. Lipikhina, Oleg V. Yakovenko
openaire   +1 more source

Characteristics of Gravity Flow Deposits in the Benin Basin (Benin) and Implications for Oil and Gas Exploration

open access: yesGeological Journal, EarlyView.
This study reveals that the underexplored Benin Basin features a narrow shelf and steep slope, which promoted the development of multi‐phase, stacked channel‐lobe complexes. These gravity flow deposits, further enhanced by bottom current reworking, reveal a significant undiscovered Upper Cretaceous stratigraphic play with considerable petroleum ...
Liu Zuodong   +4 more
wiley   +1 more source

Pre-Jurassic tectono-stratigraphic units of the Verkhnedemyansky meganticlinorium and its adjacent structures in the south of West Siberia

open access: yesRegional Geology and Metallogeny
The paper discusses compositional features of the rock complexes within the stratigraphic intervals of the Pre-Jurassic section in the east of Uvatsky District (the south of Tyumen Region).
D. Sidorov
semanticscholar   +1 more source

Petrogenesis and Tectonic Setting of Late Mesozoic Felsic Magmatic Rocks in the Wangmushan Mining District, Northern Fujian, South China

open access: yesGeological Journal, EarlyView.
The rhyolitic ignimbrite and K‐feldspar granite porphyry from the Wangmushan mining district, northern Fujian yield ages of 173.8 ± 0.8 and 102.6 ± 0.4 Ma, respectively. Geochemical data, zircon trace elements, whole‐rock Sr–Nd–Pb isotope data, and zircon Hf isotopic compositions indicate that the rhyolitic ignimbrite originated from partial remelting ...
Wei Shaogang   +7 more
wiley   +1 more source

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