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 17
... dipping southern limb and steeply dipping northern limb . In this region , the S2 planes dip towards the south in contrast to the northerly dipping attitude in the areas south of Dalma syncline . In the present area of study , the ...
... dipping southern limb and steeply dipping northern limb . In this region , the S2 planes dip towards the south in contrast to the northerly dipping attitude in the areas south of Dalma syncline . In the present area of study , the ...
Page 50
... dipping 60 ° due sc east , N - S dipping 45 ° due west and N55 ° W - S 55 ° E ve cal . The nature of the outline of these quartzitic bo is semicircular to lenticular on plan , the long direct measuring 10m - 190m and the width 10-60m ...
... dipping 60 ° due sc east , N - S dipping 45 ° due west and N55 ° W - S 55 ° E ve cal . The nature of the outline of these quartzitic bo is semicircular to lenticular on plan , the long direct measuring 10m - 190m and the width 10-60m ...
Page 64
... dipping towards NE . Here also the contact is marked by a oligomictic conglomerate with flattened pebbles of quartzite set in an arkosic matrix . Similar stray occurrences of conglomerates are also noticed within the Chaibasa Formation ...
... dipping towards NE . Here also the contact is marked by a oligomictic conglomerate with flattened pebbles of quartzite set in an arkosic matrix . Similar stray occurrences of conglomerates are also noticed within the Chaibasa Formation ...
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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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