搜索结果: 1-15 共查到“理学 uranium”相关记录38条 . 查询时间(0.057 秒)
中国地质大学科学技术发展院张帆（博士研究生），焦养泉*，等. 资源学院 构造与油气资源教育部重点实验室. AAPG Bulletin, JAN 2019. Enhancement of organic matter maturation due to radiogenic heat from uranium: A case study from the Ordos Basin in China
砂岩型；铀矿；碳质碎屑；成熟；演化；催化效应
2021/10/20
近日，中国地质大学资源学院焦养泉教授团队在国际顶级期刊《AAPG Bulletin》上刊发研究成果，首次报道发现了砂岩型铀矿对围岩碳质碎屑的成熟演化具有催化效应，即“碳质碎屑Ro的放射性催化效应”。国际同行给予了高度评价："I very welcome you case study on the radiogenic heat of uranium enhancement of organic m...
Timing of Metamorphism and Provenance of the Metamorphic Basement of the Xiangshan Uranium Orefield, Jiangxi Province, China
basement metamorphic rock detrital zircon sedimentary provenance Precambrian Jiangnan orogenic belt Xiangshan
2018/4/10
The origin, age and evolution of the Precambrian metamorphic basement of southern China provide useful insights into early crustal development. Here, we present new laser ablation–inductively coupled ...
中国地质大学科学技术发展院宋虎跃BGEG国家重点实验室 Geology (2017) Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass extinction
全球；变冷；事件；导致；生物；大灭绝
2021/10/21
近日，中国地质大学生物地质与环境地质国家重点实验室宋虎跃副研究员及合作者在国际地学领域权威期刊《GEOLOGY》上发表题目“Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass ex...
Distribution of radon activity in the atmosphere above Wzgórza Niemczansko-Strzelinskie (South-WestPoland) and its dependence on uranium and thorium content in the underlying rock and indirect ground basement
radon atmosphere uranium thorium rock
2015/9/10
Radon activity in the atmosphere and its behavior in the environment have been investigated using LR-115 nuclear
track detector. The complex geological structure of Wzgórza Niemczansko-Strzelinskie (...
A ground radiometric study of uranium,thorium and potassium in Isparta,Turkey
ground radiometric uranium thorium potassium Isparta Turkey
2015/8/28
The radioelement concentrations of uranium (238U), thorium (232Th) and potassium (40K), as their radionuclides eU, eTh and K, of Cünür Hill in the city of Isparta (Turkey) and its surroundings were me...
Distribution and supply mechanisms of high uranium concentration in the rivers of Okinawa Island, Japan
uranium river Okinawa Island guideline value supply mechanism
2017/4/10
Uranium concentrations in the rivers of Okinawa Island, Japan were determined in this study. Most rivers in the
southwestern area of the island showed high U concentrations, the highest of which was ...
(1) Werner Heisenberg and the German Uranium Project (2) Otto Hahn and the Declarations of Mainau and Göttingen
Werner Heisenberg and the German Uranium Project Otto Hahn Mainau Gottingen
2015/3/27
(1) Werner Heisenberg and the German Uranium Project (2) Otto Hahn and the Declarations of Mainau and Gottingen.
PHYSIOLOGICAL MODELS OF GEOBACTER SULFURREDUCENS AND DESULFOBACTER POSTGATEI TO UNDERSTAND URANIUM REMEDIATION IN SUBSURFACE SYSTEMS
G. sulfurreducens uranium D. postgatei flux balance analysis modeling
2015/1/28
Geobacter species are often the predominant Fe(III)-reducing microorganisms in many sedimentary environments due to their capacity for extracellular electron transfer. This exceptional physiological c...
Spatial correlation between radon ( 222 Rn) in groundwater and bedrock uranium ( 238 U): GIS and geostatistical analyses
radon uranium groundwater bedrock GIS Kriging IDW
2014/11/12
This study describes approaches to create surface maps of radon in groundwater based on
measurements of radon (
222
Rn) in drilled bedrock wells at unevenly distributed sites and uranium
bedrock m...
Na-Metasomatism and Uranium Mineralization during a Two-Stage Albitization at Kitongo, Northern Cameroon: Structural and Geochemical Evidence
Uranium Kitongo Granite Albitization Strike Slip Fault Cameroon
2013/3/7
Mapping and documentation of lithological varieties and their corresponding geochemistry at the Kitongo uranium mineralization were concerned. The Kitongo U occurrence is hosted by granitic rocks that...
Diagenetic clay mineral distribution in Mesoproterozoic sandstones of the Cariewerloo Basin, South Australia – implications for uranium mobilisation
Diagenetic clay mineral distribution Mesoproterozoic sandstones the Cariewerloo Basin implications uranium mobilisation
2012/3/30
A thick sequence of largely undeformed red-bed sandstones of Mesoproterozoic age, collectively termed the Pandurra Formation, overlies a wide area of crystalline basement of the central and eastern Ga...
Geochemical controls on uranium precipitation in calcrete palaeochannel deposits of Namibia
uranium hydrogeochemistry geochemical modelling Namibia
2011/11/10
Palaeo-river channels containing calcrete are important potential hosts for economic uranium mineralization in many parts of southern Africa particularly Namibia. The main feature of these deposits ar...
Geochemical controls on uranium precipitation in calcrete palaeochannel deposits of Namibia
uranium hydrogeochemistry geochemical modelling Namibia
2011/11/7
Palaeo-river channels containing calcrete are important potential hosts for economic uranium mineralization in many parts of southern Africa particularly Namibia. The main feature of these deposits ar...
Uranium and lead adsorption onto bentonite and zeolite modified with polyacrylamidoxime
Adsorption Polyacrylonitrile Composite Aluminosilicate Uranium Lead
2011/11/10
Polyacrylonitrile (PAN) and bentonite (B)/zeolite (Z)-PAN composites were prepared by direct polymerization of acrylonitrile (AN) and AN adsorbed onto B and Z. PAN and the composites were subjected to...
The End of Cheap Uranium
Cheap Uranium
2011/7/21
Historic data from many countries demonstrate that on average no more than 50-70% of the uranium in a deposit could be mined. An analysis of more recent data from Canada and Australia leads to a minin...