Records of the Geological Survey of India, Volume 136, Parts 4-7Government of India, 2001 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
From inside the book
Results 1-3 of 40
Page 14
... plagioclase and quartz with variable amounts of biotite and minor microcline. Apatite and iron oxides are the common accessories. Tonalite and granodiorite that are medium to coarse grained, leucocratic to mesocratic, massive to feebly ...
... plagioclase and quartz with variable amounts of biotite and minor microcline. Apatite and iron oxides are the common accessories. Tonalite and granodiorite that are medium to coarse grained, leucocratic to mesocratic, massive to feebly ...
Page 29
... plagioclase and iron-titanium oxides. There is fonnation of simplectitic intergrowth of plagioclase and amphibole in moats around gamet porphyroblasts. EDX-EPMA studies indicate strong depletionary trend of CaO in the porphyroblastic ...
... plagioclase and iron-titanium oxides. There is fonnation of simplectitic intergrowth of plagioclase and amphibole in moats around gamet porphyroblasts. EDX-EPMA studies indicate strong depletionary trend of CaO in the porphyroblastic ...
Page 1
... plagioclase and a little quartz. Restite part of migmatite consists mainly of biotite (>60%), homblende, pyroxene, plagioclase and quartz with sphene and apatite as accessory. The schistosity in restite is defined by alignment of ...
... plagioclase and a little quartz. Restite part of migmatite consists mainly of biotite (>60%), homblende, pyroxene, plagioclase and quartz with sphene and apatite as accessory. The schistosity in restite is defined by alignment of ...
Contents
EXTENDED ABSTRACTS OF PROGRESS REPORTS | 5 |
MEGHALAYA MINERAL INVESTIGATION PROJECT | 11 |
RECORDS VOLUME 136 PART5 | i |
Copyright | |
22 other sections not shown
Other editions - View all
Common terms and phrases
amphibolite Andhra Pradesh anomaly auriferous bands basalt base metals basin bedrock biotite block boreholes carried charnockite clay collected comprising Construction stage geotechnical covered Cuddapah deformation delineated depth district dolerite dolomite drilling dykes east excavation exploration exposed fault feldspar field field season folds foliation Formation foundation fracture geoenvironmental geological mapping geophysical geotechnical investigation gneiss gneissic gold values grained granite granite gneiss granitoids gravity grey grouting indicated intersected intrusive joints kimberlite limestone lineaments lithounits located magnetic Meghalaya migmatite mineralised zone minerals NE-SW NNW-SSE NW-SE occur overburden pegmatite phyllite plagioclase porphyritic quartz quartz veins quartzite Rajasthan regional River rock samples sand sandstone scale schist schist belt shear zone slope soil sq km stage geotechnical investigation stream sediment strike length structural studies sulphide Supergroup surface surveys syenite Tamil Nadu tectonic thick toposheet traverse trench trending Udaipur district ultramafic village volcanics weathered width