نتایج جستجو برای: bauxite deposit

تعداد نتایج: 18181  

Journal: :Minerals 2023

Palaeo weathering during the Cretaceous–Eocene interval is most favorable for bauxitization, i.e., transport and deposition in traps on karstified surfaces of Mediterranean karst bauxite belt, including Parnassos–Ghiona deposit. Resources lithium (Li), a critical metal strategic significance karst-type deposits, have attracted significant attention recent years. Due to discovery Li enrichment c...

2006
S. W. Laffan

The explosion in spatial data allows for analyses of much finer spatial detail than was previously possible for applications as diverse as geochemistry, geophysics, crime, epidemiology and biodiversity. In many cases the spatial density of samples makes the application of geographically local analyses routine. Such analyses evaluate a model at each sample location, producing a surface of models...

Abedini, Ali, Calagari, AliAsghar, kiaeshkevarian, Maryam, Shamanian, Gholamhosain,

The Siahrudbar deposit is located about 25 km southwest of Aliabad-Katool city in the Golestan Province, north of Iran. This deposit lies between the Triassic limestone (Elika Formation) and Jurassic sandstone (Shemshak Formation). Mineralogical studies indicate the presence of major minerals such as diaspore, hematite, anatase, kaolinite, and chamosite accompanied by minor minerals such as boe...

رضایی, حمید رضا , نقی‌زاده, رحیم , گلستانی فرد, فرهاد ,

In this research, the properties and characteristics of Biglar refractories bauxite mines have compared with two types of industrial China's and Iranian (Doplan super) refractory grade bauxite in order to use in refractory industries. At first, physical, chemical and thermal properties, phase and microstructural characteristics have been measured and sintered samples of Biglar Bauxite at differ...

Journal: :Journal of environmental management 2013
Naiara Amaral de Miranda Machado Mariangela Garcia Praça Leite Maurílio Assis Figueiredo Alessandra Rodrigues Kozovits

Topsoil is the preferred substrate for areas requiring rehabilitation after bauxite mining. However, topsoil is sometimes lacking and so there is a need to test the suitability of other, locally available substrates. In an abandoned bauxite mine in Southeastern Brazil, small patches of native vegetation spontaneously established in shallow depressions over weathered laterite, suggesting that gr...

Journal: :Minerals 2023

Bauxite, in central Guizhou, is predominantly karst bauxite, but there insufficient research on the effect of paleogeomorphology bauxite development. Xiaoyuan also a and high- low-iron deposits exist study area. This conducts geological modeling using controlled-source audio-frequency magnetotelluric (CSAMT) data drill core data. The effects deposition mineralization are evaluated by assessing ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم طبیعی 1387

چکیده ندارد.

Journal: :Minerals 2021

The study of lateritic bauxite by electron microscopy revealed abundant products interaction between organic matter and minerals. Abundant biomineral films different genesis composition were found, including Al, Fe, Al-Fe, Al-Si, Al-Fe-Si, sorbed rare rare-earth elements (REE). evolution these from amorphous to crystallized the conversion into druse crystals gibbsite, hematite, kaolinite etc. w...

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