Results 21 to 30 of about 105,423 (180)

How Can Technical Aspects Help Improving K-Ar Isotopic Data of Illite-Rich Clay Materials into Meaningful Ages? The Case of the Dominique Peter Uranium Deposit (Saskatchewan, Canada)

Geosciences, 2020
Previously published K-Ar dating results of
Norbert Clauer
doaj   +1 more source

Silurian black shales of Western Ukraine: petrography and mineralogy [PDF]

Estonian Journal of Earth Sciences, 2017
Organic-rich Silurian black shale, stretching along the western margin of the East European Platform from the Baltic Sea to the Black Sea, represent a potential target for conventional and unconventional hydrocarbon exploration. In Western Ukraine, these
Natalia Radkovets, Johannes Rauball, Iaroslava Iaremchuk   +2 more
doaj   +1 more source

Newly discovered Botryococcus-rich source rocks in the western Qaidam Basin, NW China and their implications for shale oil exploration in saline lacustrine basins

Journal of Natural Gas Geoscience, 2023
Owing to the high hydrocarbon content and photosynthetic efficiency of phytoplankton, planktonic microalgae account for the main source of petroleum hydrocarbons in marine and continental petroliferous basins. Therefore, the presence of algal residues in
Mingzhen Zhang, Peihong Jin, Mingxiang Zhang, Liming Ji, Jing Zhang   +4 more
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Clay mineralogy and provenance modeling of the Paleoproterozoic Kaladgi shales, Dharwar Craton, Southern India: Implications on paleoweathering and source rock compositions

Geosystems and Geoenvironment, 2023
Proterozoic clastic sediments reveal vast information regarding provenance, depositional conditions, and environmental evolutions. Peninsular India comprising Archean cratons, also have numerous intracratonic Proterozoic sedimentary basins along their ...
Pronoy Roy, G. Parthasarathy, Bulusu Sreenivas   +2 more
doaj   +1 more source

Induced polarization of clay-rich materials — Part 1: The effect of desiccation

Geophysics, 2023
A petrophysical model describing spectral induced polarization has been developed for clay-rocks accounting for the Maxwell Wagner polarization. It is also used to connect the complex conductivity to the relative permeability of the material.
A. Revil, A. Ghorbani, Damien Jougnot, B. Yven   +3 more
semanticscholar   +1 more source

Impure CO2 reaction of feldspar, clay, and organic matter rich cap-rocks: Decreases in the fraction of accessible mesopores measured by SANS

International Journal of Coal Geology, 2018
J. Pearce, G. Dawson, T. Blach, J. Bahadur, Y. Melnichenko, S. Golding   +5 more
semanticscholar   +3 more sources

Mobility of organic compounds in a soft clay-rich rock (Tégulines clay, France)

Chemosphere, 2021
The migration of organic compounds in soils is a major concern in several environmental issues. Contaminants display distinct behaviours as regards to their specific affinities towards soils constituents. The retention mechanism of hydrophobic compounds by natural organic matter is well known.
Ning Guo, Zoé Disdier, Émilie Thory, Jean-Charles Robinet, Romain V.H. Dagnelie   +4 more
openaire   +3 more sources

Shallow Composition and Structure of the Upper Part of the Exhumed San Gabriel Fault, California: Implications for Fault Processes

Tektonika, 2023
Quantifying shallow fault zone structure and characteristics is critical for accurately modeling the complex mechanical behavior of earthquakes as energy moves within faults from depth.
Kaitlyn Crouch, James Evans
doaj   +1 more source

ORIGIN AND DISTRIBUTION OF CLAY MINERALS IN THE MUDSTONES OF THE KOLOSH FORMATION INRAWANDOZ AREA, NORTHEASTERN IRAQ

Iraqi Geological Journal, 2018
The mudstone/ shale units constituted 60% of the Kolosh Formation of 170 m thickness, which were studied and the clay minerals were identified to conclude the origin and paleoclimate.
Iqbal j. Mohammed, Sa'ad Z. Al-Mashaikie   +1 more
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Provenance of clastic sediments: A case study from Cameroon, Central Africa

Solid Earth Sciences, 2023
The provenance of clastic sediments in stream beds, river terraces, rivers, swamps, lakes and beaches from different geological settings was investigated based on their compositional and geochemical variations.
Victorine Ambassa Bela, Armel Zacharie Ekoa Bessa, John S. Armstrong-Altrin, Francis Aonsi Kamani, Estelle Diane Biami Nya, Gabriel Ngueutchoua   +5 more
doaj   +1 more source