Records of the Geological Survey of India, Volume 127, Part 2The Survey, 1994 - 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
... rocks in the belt . Admittedly , the episodic generation of charnockitic rocks in the belt need substantiation by reliable geochronologi- cal data . Available radiometric age data on the charnockitic rocks of the belt are meagre ...
... rocks in the belt . Admittedly , the episodic generation of charnockitic rocks in the belt need substantiation by reliable geochronologi- cal data . Available radiometric age data on the charnockitic rocks of the belt are meagre ...
Page 187
... rocks ( trondhjemite to granodiorite to quartz diorite ) . Alkali felspar granite and granophyres and pegmatites also occur as intrusive into the gneiss - migmatitic rocks in the area . The gneiss - mig- matite complex hosts a diverse ...
... rocks ( trondhjemite to granodiorite to quartz diorite ) . Alkali felspar granite and granophyres and pegmatites also occur as intrusive into the gneiss - migmatitic rocks in the area . The gneiss - mig- matite complex hosts a diverse ...
Page 192
... rocks and Pre- Sakoli gneiss - migmatite complex with older supracrustal as- semblages ( fig . 1 ) Pre - Sakoli rocks include granite gneiss and migmatites having compositional range from tonalite / granodiorite to granite , alkali ...
... rocks and Pre- Sakoli gneiss - migmatite complex with older supracrustal as- semblages ( fig . 1 ) Pre - Sakoli rocks include granite gneiss and migmatites having compositional range from tonalite / granodiorite to granite , alkali ...
Contents
Photogeology Remote Sensing Division | 29 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING 146240 | 149 |
Overview of the Deputy Director General | 243 |
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aeromagnetic airborne amphibolite AMSE Wing analysis ANDHRA PRADESH anomalies bands Barakar Barakar Formation Barren Measures basin Bengal BHUTAN Bihar biotite block boreholes carbonaceous charnockite Chekha clay coal seams COAL WING Coalfield Code cores covered cruise depth range DISTRICT Division drilling east eastern exploration for coal faults field season fold geochemical GEOLOGICAL MAP geophysical data gneiss Gondwana granite gneiss gravity grey ground evaluation heavy mineral indicate intersected intrusives investigation isobath Kamthi LAMPROITE lamprophyres lignite lineament located MADHYA PRADESH magnetic metabasalt metamorphism migmatites million tonnes mineralisation multisensor NW-SE occur Orissa phyllite programme Proterozoic quartz quartzite Raniganj Regional exploration ridge rocks Sakoli sand sandstone scale schist seabed seam zones sector sediments sequence shale shear zones Shumar slope southern sq km strike length structural studies sub-basin sub-surface Survey of India Talchir Tamil Nadu tectonic thickness Thimphu toposheet trending upto varies