Characterization of bauxite deposits from Kachchh Area, Gujarat

Autor:	Priyanka Sen, Nisha Sharma, G.N. Jadhav
Rok vydání:	2012
Předmět:	Gujarat Oolite Goethite Mineral Colloform Texture Pisolite Geochemistry Mineralogy Geology engineering.material Diaspore Alunite Kachchh Petrography Bauxite Iron ore visual_art visual_art.visual_art_medium engineering Gibbsite Parent rock Boehmite
Zdroj:	Journal of the Geological Society of India. 80:351-362
ISSN:	0974-6889 0016-7622
DOI:	10.1007/s12594-012-0153-5
Popis:	The bauxites deposits of Kachchh area in Gujarat are investigated to characterize them based on mineralogical and petrographic studies. The major bauxitic mineral in these occurrences is gibbsite, with minor concentration of boehmite and diaspore. Apart from the bauxitic minerals, the other associate minerals are kaolin, calcite, alunite and the iron ore minerals such as hematite and goethite and titanium rich anatase. The iron ore minerals (hematite and goethite) are 10-50microns in size and are disseminated throughout the oolitic and pisolitic bauxitic minerals. At places the goethite exhibits colloform texture. The preservation of basaltic texture in some of the samples indicate that the insitu nature of these bauxites, which are formed by the alteration of calcic plagioclase from the parent basalt. Although, the basalt occurs as the main parent rock for these bauxites, the presence of calcite in some of the samples represent the possibility of having a limestone parent rock at least in some of the bauxite occurrences.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e8a39c58e392f41a583dd9bdd7ecfc2 https://doi.org/10.1007/s12594-012-0153-5 Zobrazit plný text záznamu Full text from SpringerLink