全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Xuefei Liu , Qingfei Wang , Qizuan Zhang ...
来源:[J].Mineralium Deposita(IF 2.147), 2017, Vol.52 (7), pp.1031-1048Springer
摘要:...5 billion tons of late Permian bauxite overlies the karstic topography of the Maokou Formation of western Guangxi in China. Here, we provide new mineralogical, geochemical, Sr–Nd–Pb isotopic, and pyrite S isotope and trace element compositional data for the Pingguo bauxite deposit...
作者:Maryam Khosravi , Ali Abedini , Samad Alipour ...
来源:[J].Journal of African Earth Sciences(IF 1.229), 2017, Vol.129, pp.960-972Elsevier
摘要:Abstract(#br)The Darzi-Vali bauxite deposit, located 20 km east of Bukan, in northwestern Iran, occurs as discontinuous layers and lenses within the Upper Permian carbonate rocks of the Ruteh Formation. These layers extend laterally for over ∼1 km and vary in thickness ran...
作者:Yongzhen Long , Guoxiang Chi , Jianping Liu ...
来源:[J].Journal of Geochemical Exploration(IF 1.952), 2018, Vol.190, pp.424-435Elsevier
摘要:Abstract(#br)Elevated concentrations of uranium have been found in many bauxite deposits, but the status of uranium in the ores and the mechanisms of enrichment have not been well understood. In this paper, we report a new case of uranium enrichment in a paleo-karstic bauxite deposit...
作者:Yongzhen Long , Anhuai Lu , Xiangping Gu ...
来源:[J].Ore Geology Reviews(IF 2.417), 2020, Vol.117Elsevier
摘要:Abstract(#br)Cobalt can be enriched in a variety of different geologic settings, while it is mainly produced as a by-product of sediment-hosted stratiform Cu deposits and magmatic Ni-Cu deposits associated with mafic and ultramafic rocks. In this study, we report elevated Co con...
作者:Slobodan Radusinović , Rade Jelenković , Aleksandar Pačevski ...
来源:[J].Ore Geology Reviews(IF 2.417), 2017, Vol.80, pp.406-428Elsevier
摘要:Abstract(#br)Three vertical sections through the Zagrad deposit of Jurassic karst bauxite in central Montenegro have provided knowledge of the vertical distribution of major and some selected trace elements, including rare earth elements (REE). Variations in the mineralogy, part...
作者:Yongzhen Long , Guoxiang Chi , Jianping Liu ...
来源:[J].Ore Geology Reviews(IF 2.417), 2017, Vol.91, pp.404-418Elsevier
摘要:Abstract(#br)A number of Carboniferous paleo-karstic bauxite deposits occur in the Xiuwen-Qingzhen area, central Guizhou Province, which constitute an important part of the central Guizhou-Southern Chongqing bauxite belt in southwestern China. These deposits consist of lenticul...
作者:Shao-feng WANG , Xi-bing LI , Shan-yong WANG ...
来源:[J].Transactions of Nonferrous Metals Society of China(IF 0.917), 2016, Vol.26 (10), pp.2724-2730Elsevier
摘要:Abstract(#br)A coupled biharmonic spline and linear interpolation algorithm was proposed to create a three-dimensional smooth deposit model with minimal curvature containing grade and position data. To obtain the optimal technical parameters, such as cutting height and drum dia...
作者:Jing Gu , Zhilong Huang , Hongpeng Fan ...
来源:[J].Journal of Asian Earth Sciences(IF 2.379), 2013, Vol.70-71, pp.265-282Elsevier
摘要:Abstract(#br)The provenance of the large and super-large scale bauxite deposits developed in the Wuchuan–Zheng’an–Daozhen (WZD) alumina metallogenic province in the Yangtze Block of South China is poorly understood. LA-ICP-MS and SIMS U–Pb dating of detrital zircons from ...
作者:E. J. M. Nguelem , M. M. Ndontchueng , O. Motapon ...
来源:[J].Environmental Earth Sciences(IF 1.445), 2017, Vol.76 (17)Springer
摘要:... The observed radioactivity level of 226Ra, 232Th and 40K in the investigated soil samples was compared with some published data available in some countries including Cameroon and observed varying within some reported data of radioactivity in soil from bauxite...
作者:Thair Al-Ani
来源:[J].Arabian Journal of Geosciences(IF 0.74), 2017, Vol.10 (3), pp.1-15Springer
摘要:... Nuwaifa karst bauxite was developed in fossil karsts within the Ubaid Formation in areas where maximum intersection of fractures and faults exist. This bauxitization process affected the upper surface of the Ubaid limestone formation, which directly underlies the Nuwaifa bauxite...

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