Results 11 to 20 of about 366 (182)

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

open access: yesGeophysical Monograph Series, Page 449-486., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Shuan‐Hong Zhang   +4 more
wiley  

+1 more source

Determination of Redox Potential of Sandstone-type Uranium Ore by Potential Drop Methods of Potassium Dichromate and Potassium Permanganate

open access: yesYankuang ceshi, 2022
BACKGROUND The redox potential is a quantitative indicator of the mixed redox potential of all substances in a system, which reflects the relative strength of the redox capacity of the whole system.
WANG Na   +5 more
doaj   +1 more source

Reformability evaluation of blasting-enhanced permeability in in situ leaching mining of low-permeability sandstone-type uranium deposits

open access: yesNuclear Engineering and Technology, 2023
It is essential to evaluate the blasting-enhanced permeability (BEP) feasibility of a low-permeability sandstone-type uranium deposit. In this work, the mineral composition, reservoir physical properties and rock mechanical properties of samples from ...
Wei Wang   +13 more
doaj   +1 more source

Application of Automatic Mineral Analysis Technology to Identify Minerals and Occurrences of Elements in Sandstone-type Uranium Deposits in the Ordos Basin

open access: yesYankuang ceshi, 2021
BACKGROUND The Ordos Basin is one of the most important areas in China because it hosts lots of sandstone-type uranium deposits and a variety of other energy and mineral resources.
ZHANG Ran   +9 more
doaj   +1 more source

Uranium metallogenic model of the Lower Cretaceous in the northern Ordos Basin

open access: yes地质科技通报, 2023
Since 2019, major breakthroughs have been made in the prospecting of the Lower Cretaceous sandstone-type uranium deposits in the northern Ordos Basin.
Longhui Wang   +8 more
doaj   +1 more source

Geochemical characteristics of epigenetic alteration and its constraints on mineralization in lower segment of Zhiluo Formation, Shuanglong area, southern Ordos Basin

open access: yes地质科技通报, 2021
Green-color sandstone illustrates close association to the deposition of sandstone-type uranium via field exploration, which is similar to the Dongsheng area.
Yang Liu, Junli Wang, Huifeng Cao, Bo Ji
doaj   +1 more source

New discovery and prospecting prospect of sandstone type uranium deposits in Duolun Intermountain Basin, Inner Mongolia

open access: yes地质科技通报, 2021
This paper reports the first discovery of sandstone type industrial uranium mineralization in the Duolun Intermountain Basin in the Mesozoic volcanic rock area of Southeast Inner Mongolia by No.208 Geological Party, CNNC.In order to understand the type ...
Xiaojun Jiang   +5 more
doaj   +1 more source

Ore-Forming Biogenic Factor in the Formation of Sandstone-Type Uranium Deposits

open access: yesGeology of Ore Deposits, 2022
Abstract—The geological environment of ore formation in sandstone-type uranium deposits is considered in light of modern geomicrobiological and ecological (environmental) mineralogical data related to solving environmental bioremediation problems (purification of the near-surface environment via bacterial fixation of radionuclides).
O. A. Doynikova, V. A. Petrov
openaire   +1 more source

Experimental Study on the Insulation Layer Thickness of a Novel Ice Coring Device in Loose Sandstone-Type Uranium Deposits

open access: yesEnergies, 2021
The target strata of sandstone-type uranium deposits are usually located in the fragile and loose strata, which makes it difficult to obtain core samples; consequently, a novel ice coring device for loose sandstone-type uranium deposits is proposed to ...
Chaoyang Huang   +6 more
doaj   +1 more source

Full-scale pore size distribution features of uranium-bearing sandstone in the northwest of Xinjiang, China

open access: yesRoyal Society Open Science, 2021
As an important nuclear fuel, uranium in sandstone uranium deposits is mainly extracted by in situ leaching. The porosity of sandstone is one of the important indexes determining in situ leaching efficiency.
Sheng Zeng   +5 more
doaj   +1 more source

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