Results 11 to 20 of about 7,088 (223)

The chemical damage of sandstone after sulfuric acid-rock reactions with different duration times and its influence on the impact mechanical behaviour [PDF]

open access: yesHeliyon, 2023
The low-permeability characteristic of sandstone-type uranium deposits has become the key geological bottleneck during the in-situ leaching mining, seriously restricting the development and utilization of uranium resources in China.
Qinghe Niu   +9 more
doaj   +2 more sources

Uranium mineralization formed through multi-stage superposition: Case of the Qianjiadian deposit in Songliao Basin, China

open access: yesEnergy Geoscience, 2021
The Qianjiadian uranium deposit is located in the Kailu Depression of Songliao Basin. It is a large-scale in-situ leachable uranium deposit of sandstone type and provides a typical case of the uranium deposits in the Songliao Basin.
Zhenyan Chen   +5 more
doaj   +2 more sources

In situ U-Pb Isotope Dating Techniques for Sandstone-type Uranium Deposits

open access: yesYankuang ceshi, 2020
BACKGROUND Uranium mineral dating has been difficult to ascertain in mineralization chronology. With the development of in situ U-Pb isotope dating technology, it is possible to directly date ore minerals (uranium minerals).
XIAO Zhi-bin   +6 more
doaj   +2 more sources

Multifractal Characteristics of Uranium Grade Distribution and Spatial Regularities in a Sandstone-Type Uranium Deposit in Xinjiang, China

open access: yesFractal and Fractional, 2023
Based on an analysis of the spatial distribution of uranium grade in 338 boreholes of a uranium deposit in Xinjiang, the enrichment and spatial variation of uranium ore in two stopes of the deposit are discussed using multifractal theory.
Qiue Cai   +3 more
doaj   +2 more sources

Thermoluminescence Characteristics of Sandstone-type Uranium Deposit Soil and Optimization of Measurement Process

open access: yesYuanzineng kexue jishu
As a technique in the measurement of accumulated radon for uranium resource exploration, the natural soil thermoluminescence method is widely applied in the exploration of sandstone-type, granite-type, and volcanic rock-type uranium deposits, and ...
ZHANG Xinyi1,2, WANG Meng1,2, GU Yi1,2, WANG Yong3, GE Liangquan1,2, ZHANG Qingxian1,2, LI Xiaoxiao1,2
doaj   +2 more sources

Semi-Quantitative Analysis of Uranium Content Distribution Ratio in a Sandstone-Type Uranium Deposit in Songliao Basin

open access: yesYankuang ceshi
The Qianjiadian uranium deposit is a complex-metamorphic sandstone-type uranium mine located in the southern part of the Songliao Basin. To determine the state of uranium mineralization and its partitioning in different minerals, petrographic ...
Mingyi LIU   +7 more
doaj   +2 more sources

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

A Review of the Metallogenic Mechanisms of Sandstone-Type Uranium Deposits in Hydrocarbon-Bearing Basins in China

open access: yesEng, 2023
As a valuable mineral resource, uranium is extensively utilized in nuclear power generation, radiation therapy, isotope labeling, and tracing. In order to achieve energy structure diversification, reduce dependence on traditional fossil fuels, and ...
Guihe Li   +5 more
doaj   +1 more source

Mineral Distribution Characteristics of the Pengyang Uranium Deposit Based on Near Infrared Core Spectral Scanning Technology

open access: yesYankuang ceshi, 2022
BACKGROUND As an epigenetic deposit dominated by supergene fluid, a sandstone type uranium deposit has many low-temperature minerals. In recent years, the Pengyang uranium deposit, a deep sandstone type uranium deposit, has been discovered in the ...
ZHANG Bo   +6 more
doaj   +1 more source

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

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