 | | Report (chapter) | | 2015 Two decades of phosphorite investigations in India R. C H O U D H U R I Rajasthan State Mines and Minerals...Minerals Ltd, Udaipur, Rajasthan, India Abstract: Phosphate rock has been known for many years in some...some of the sedimentary basins of India. Several discoveries in the 1960s and 1970s have proved of economic...potential. Geological ages for the main phosphorite sequences in India are not well established and there...Proterozoic-Cambrian phosphorite provinces in other parts of the world. Since the discovery of phosphorite beds of |  | | Journal (article/letter/editorial) | | Geology, Mohanlal Sukhadia University, Udaipur 313001, India t Institut fiir Geowissenschaften, Universitat...Archaean basement rocks of the Aravalli craton of Rajasthan, northwestern Indian Shield. The protolith ages...ages for two gneisses, collected from east of Udaipur, are ~3230 Ma and 2887 Ma respectively. The granitoids...Regional geology Archaean rocks in Rajasthan, northwestern India, make up a polydeformed and metamorphosed...1953). However, over a large part of central Rajasthan, the unconformity is not traceable because of |  | | Book (volume) | | phosphorites EDITED BY P.J. COOK AND elo RGOLD Division of Continental Geology, Bureau of Mineral Resources...USSR 12 Mongolia /2 Korea (D.R.) China Vietnam India J3 /3 Pakistan Australia /2 /3 1/4 /4 Economic...spatial distribution of Late Proterozoic-Cambrian phosphorite deposits in China 23 The BIFs and accompanying...Proterozoic of the Adelaide Geosyncline — Stuart Shelf Phosphorite deposits 28 Duchess 3/ 6 37 38 Proterozoic...Introduction 63 Mongolian-Siberian region 64 Phosphorite deposits 64 General observations 65 Kazakhstan |  | | Report (issue) | | Bibliography of the geology of sedimentary phosphorite and igneous apatite Nancy J. Bridges 1 , May...Geologic Period index listing 765 Insular Phosphorite index listing --- 786 Chemistry and Mineralogy... Bibliography of the geology of sedimentary phosphorite and igneous apatite Abstract Ten indexed listings...publications related to the geology of sedimentary phosphorite and igneous apatite. contains 4,957 references... Introduction Studies of the geology of sedimentary phosphorite and igneous apatite are widely scattered in the |  | | Journal (article/letter/editorial) | | concretion, granule, Raman, XANES MA Keywords: phosphorite, jasper, apatite, Proterozoic, organic matter...granules associated with algal fragments and detrital quartz grains suggest a dynamic shallow water environment...concretionary PT jasper (sample AG1108) from Thunderbird mine dumps came from the ‘Upper Cherty’ CE member of...cm-1), magnetite (~670 cm-1), rutile (~612 cm-1), quartz (~465 cm-1), and anatase (~138 cm-1). All Raman...coccoids and filaments in the Michigamme cherty phosphorite have intense and narrow D1-bands between 1338 |
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