Records of the Geological Survey of India, Volume 113, Part 3The Survey, 1985 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 25
... base metal and kyanite occurrences along the Northern Shear Zone . Exploratory drilling in the Beldih area has proved a reserve of 4.56m . tonnes of apatite with 13.17 % PQ on average , while work is in progress in the Kutni and ...
... base metal and kyanite occurrences along the Northern Shear Zone . Exploratory drilling in the Beldih area has proved a reserve of 4.56m . tonnes of apatite with 13.17 % PQ on average , while work is in progress in the Kutni and ...
Page 28
... base metals , radio- active elements and of apatite in the Singhbhum Shear Zone , prompted geoscientists to look into the adjacent Northern Shear Zone . Base metal mineralization in the latter was recorded by Dunn and De ( 1942 ) ...
... base metals , radio- active elements and of apatite in the Singhbhum Shear Zone , prompted geoscientists to look into the adjacent Northern Shear Zone . Base metal mineralization in the latter was recorded by Dunn and De ( 1942 ) ...
Page 101
... base . This unit is about 48.7m thick and shows grada- tional contact with underlying sandy shale unit . The pink sandstone is poorly sorted with a high percentage of clayey matrix . The matrix part of the rock often shows deep brown ...
... base . This unit is about 48.7m thick and shows grada- tional contact with underlying sandy shale unit . The pink sandstone is poorly sorted with a high percentage of clayey matrix . The matrix part of the rock often shows deep brown ...
Contents
Structural evolution of Precambrians in parts of north Singhbhum BiharA Gupta | 13 |
Geology and mineralisation along the northern shear zone Purulia district West | 25 |
BengalAn upto date appraisalM N Kumar N Das and S Das Gupta | 33 |
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Common terms and phrases
anomaly zone antiform apatite assemblage axial plane axis bands Barakar Formation Baripada Basu Beldih belt Bihar biotite carbon-phyllite Cataclasite Chaibasa Chaibasa Formation chlorite chlorite schist horizon conglomerate contours copper Dalma syncline deformation Dhanjori dipping district domains Dubrajpur Formation Dulmi F₁ F₂ feldspars folds foliation fraction geochemical Geol Geological Survey geophysical Ghosh gneiss grains granite granite gneiss granitic rocks Gupta hill hornblende Kandra Kutni kyanite limestone lineation magnetite metamorphic mica schists migmatites mineral mineralisation muscovite Northern Shear Zone occur Orissa panned heavy pelitic phyllite plagioclase planar Plate plunging Precambrian puckers pyrite quartz quartzite Rajmahal Rangpo Records Volume 113 regional S₁ plots S₂ samples Sarkar Sarwan Pahar section schist schistosity sector sequence sericite Shear Zone silicified Singhbhum Singhbhum Shear Zone springs stratigraphic stream sediment structural Subarnarekha river sulphide Surv Survey of India tectonic tectonite trench Turamdih upto