Results 31 to 40 of about 336,879 (337)

Determination of Oxygen Isotopic Composition in Barium Sulfate by Online Pyrolysis Method with Nickel-plated Carbon as Reductant

open access: yesYankuang ceshi, 2019
BACKGROUND The oxygen isotopic composition of sulfate radical in mineral or water can be used to identify the source and transformation process. At present, the common method is to convert sulfate radical into barium sulfate and the oxygen isotopic ...
JIN Gui-shan   +6 more
doaj   +1 more source

Design and validation of the THMC China-Mock-Up test on buffer material for HLW disposal

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
According to the preliminary concept of the high-level radioactive waste (HLW) repository in China, a large-scale mock-up facility, named China-Mock-Up was constructed in the laboratory of Beijing Research Institute of Uranium Geology (BRIUG).
Yuemiao Liu   +7 more
doaj   +1 more source

Indications of sandstone-type uranium mineralization from 3D seismic data: a case study of the Qiharigetu deposit, Erenhot Basin, China

open access: yesJournal of Petroleum Exploration and Production Technology, 2021
The primary exploration objective of Qiharigetu Sandstone-type Uranium (SU) deposit in the Erenhot Basin of China is to understand the stratigraphy, lithology and fault distribution of the target layer.
Qubo Wu, Yucheng Huang
doaj   +1 more source

A geoneutrino experiment at Homestake [PDF]

open access: yes, 2006
A significant fraction of the 44TW of heat dissipation from the Earth's interior is believed to originate from the decays of terrestrial uranium and thorium.
A. A. Kremenetsky   +30 more
core   +4 more sources

Potential of application of IRT-T research reactor as the solution of the problem of graphite radwaste disposal [PDF]

open access: yesNuclear Energy and Technology, 2018
Aspects of handling irradiated graphite during decommissioning uranium-graphite reactors (UGR) of different types were investigated. It was demonstrated that handling reactor graphite is complicated by the presence in the composition of graphite of long ...
Alexander Pavliuk   +3 more
doaj   +3 more sources

Development of X-ray fluorescence technique for the uranium determination in Mongolian coal, coal ash, and phosphate ore [PDF]

open access: yes, 2014
The results of the determination of uranium in Mongolian brown coal, coal ash, phosphate rock, and technological samples by X-ray fluorescence (XRF) spectrometry are presented.
Bolortuya, D.   +3 more
core   +2 more sources

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 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.
Richard E. Ernst   +8 more
wiley  

+9 more sources

Accurate Measurement of Argon Isotope Composition of Air by Argus Multi-collector Noble Gas Mass Spectrometer

open access: yesYankuang ceshi, 2016
Accurate measurement of Argon isotopes is the premise of Ar-Ar dating with high precision. Two main kinds of instruments for Ar isotope measurement are Single-collector and Multi-collector Mass Spectrometers, among which the Multi-collector Noble Gas ...
LI Jun-jie   +5 more
doaj   +1 more source

A new type U-Th-REE-Nb mineralization related to albitite: A case study from the Chachaxiangka deposit in the northeastern Qaidam Basin of China

open access: yesChina Geology, 2019
: The U-Th-REE-Nb (Ta)-polymetallic mineralization is generally related to either the silica-undersaturated syenites, the silica-oversaturated alkaline/peralkaline granites or igneous carbonatites.
Jun Zhong   +6 more
doaj   +1 more source

Parallel groundwater flow simulation method based on a discrete fracture network model

open access: yes地质科技通报, 2023
Objective Groundwater flow in fractured rocks has strong heterogeneity and anisotropy. The discrete fracture network (DFN) method has been internationally considered as one of the most reasonable and effective methods to describe the fracture water ...
Jingbo Zhao   +5 more
doaj   +1 more source

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