Records of the Geological Survey of India, Volume 107The Survey, 1976 - Earthquakes Includes the Annual report of the Geological Survey of India, 1867- |
From inside the book
Results 1-3 of 72
Page 136
... biotite - granite intruded by fine grained tourmaline bearing granite . Coarse grained tourmaline , muscovite , biotite , and beryl bearing pegmatites intrude both into biotite - granite and tourmaline - granite . Aplite is the youngest ...
... biotite - granite intruded by fine grained tourmaline bearing granite . Coarse grained tourmaline , muscovite , biotite , and beryl bearing pegmatites intrude both into biotite - granite and tourmaline - granite . Aplite is the youngest ...
Page 8
... biotite . Study of bore hole cores both by hand lens and in thin sections under the microscope indicate that the veins and dissemination of sulphide have both concordant and cross cutting relationship with the existing S - planes ...
... biotite . Study of bore hole cores both by hand lens and in thin sections under the microscope indicate that the veins and dissemination of sulphide have both concordant and cross cutting relationship with the existing S - planes ...
Page 41
... biotite is also seen . b ) Granitic injections in the contact schistose rocks Granitic material injected in varying ... biotite and at places biotite being replaced by muscovite and sericite are commonly seen . In a few sections where ...
... biotite is also seen . b ) Granitic injections in the contact schistose rocks Granitic material injected in varying ... biotite and at places biotite being replaced by muscovite and sericite are commonly seen . In a few sections where ...
Other editions - View all
Common terms and phrases
amphibolite Andhra Pradesh Archaean bands basalt basin bauxite beds Bihar biotite block boreholes carried chalcopyrite chlorite clay Coalfield conglomerate copper cores Deccan Trap Delhi deposits depth Director district Division dolerite drilling epidote exposed felspar folds formation fossil galena geochemical Geol geological mapping Geological Survey Geologists Jr geophysical Ghosh Glossopteris Glossopteris flora gneiss gneissic complex Gondwana grade grained granite gneiss greenish greenstone belts grey Group hill holes horizon indicated investigation Kashmir Kurnool laterite limestone Lower mapped an area metamorphism mineralisation minerals occur Panjal trap pegmatite phyllite pits Project pyrite quartz quartz veins quartzite Quaternary Rajasthan Raniganj regional river rock types samples sand sandstone Sarvashri scale schist schistose seams sediments shale shear zone Shri Singh Siwalik spillway sq km Srivastava stratigraphic studies sulphide Survey of India thickness traverse trending tunnel unconformity Upper upto valley varies Vindhyan