Results 31 to 40 of about 18,195 (239)

Oil and gas bearing collectors of deep-lying Lower Carboniferous complexes of the central part of the Dnieper-Donets Basin

open access: yesГеофизический журнал, 2011
Deep-seated (at the depths more than 5 km) sedimentary complexes of the most deep depressions of the World (in Ukraine - the central part of the Dnieper-Donets Depression, the Donets Basin, the Black Sea, the Pre-Carpathian foredeep - Carpathians - Trans-
A. E. Lukin   +3 more
doaj   +1 more source

N2 in deep subsurface fracture fluids of the Canadian Shield: Source and possible recycling processes

open access: yes, 2021
In addition to high concentrations of CH4 and H2, abundant dissolved N2 is found in subsurface fracture fluids in Precambrian cratons around the world. These fracture fluids have hydrogeological isolation times on order of thousands to millions and even ...
Labidi, Jabrane   +5 more
core   +1 more source

Sulfur metabolisms in epsilon- and gamma-Proteobacteria in deep-sea hydrothermal fields

open access: yesFrontiers in Microbiology, 2011
In deep-sea hydrothermal systems, super hot and reduced vent fluids from the subseafloor blend with cold and oxidized seawater. Very unique and dense ecosystems are formed within these environments.
Masahiro eYamamoto   +3 more
doaj   +1 more source

Large and super-large orogenic golden deposits: Geodynamics, structure, genetic consequences

open access: yesЛитосфера, 2020
Research subject. Large and super-large orogenic gold deposits are widely distributed across all continents. This work was aimed at characterizing 24 giant facilities with reserves and resources of more than 500 tons of metal.Materials and methods.
Yu. S. Savchuk, A. V. Volkov
doaj   +1 more source

Low velocity zones of thermobaric origin in the crystalline crust

open access: yesГеофизический журнал, 2015
The paper presents a new hypothesis of origin, existence and disappearance of crustal low velocity zones (LVZs), discovered the DSS method as elastic anomalies of the Earth’s crust.
V. Korchin
doaj   +1 more source

The main geodynamic border and seismic visualization of plumes under the East European Platform

open access: yesГеофизический журнал, 2019
According to the Taylor approximation method of the three-dimensional P-velocity mantle model under Eurasia, a seismic imaging of the manifold plumes and super-deep fluid processes of the East European Platform was carried out.
T. Tsvetkova   +2 more
doaj   +1 more source

Instabilities in relativistic two-component (super)fluids

open access: yes, 2016
We study two-fluid systems with nonzero fluid velocities and compute their sound modes, which indicate various instabilities. For the case of two zero-temperature superfluids we employ a microscopic field-theoretical model of two coupled bosonic fields ...
Haber, Alexander   +2 more
core   +2 more sources

Implications of ideas on super-hydrophobicity for water repellent soil [PDF]

open access: yes, 2007
Water repellence is an important factor in soil erosion due to its role in inhibiting the re-establishinent of vegetation after fire and due to its enhancement of run-off.
Pyatt, F. Brian   +7 more
core   +1 more source

Experimental Study of Matrix Permeability of Gas Shale: An Application to CO2-Based Shale Fracturing

open access: yesEnergies, 2018
Because the limitations of water-based fracturing fluids restrict their fracturing efficiency and scope of application, liquid CO2 is regarded as a promising substitute, owing to its unique characteristics, including its greater environmental ...
Chengpeng Zhang   +1 more
doaj   +1 more source

Development and evaluation of foam-based conformance control for a high-salinity and high-temperature carbonate

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
The extreme heterogeneity of carbonate reservoirs in the form of fracture corridors and super-permeability thief zones present challenges to the efficient sweep of oil in both secondary and tertiary recovery operations.
Alhasan B. Fuseni   +3 more
doaj   +1 more source

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