Records of the Geological Survey of India, Volume 117, Part 2The Survey, 1986 - 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
... close parallelism of the mineral distribution with the structural directions of the rock it seems that on the whole crystallization was syn- to late - kinematic , the late - kinematic growth having healed the axial planes . Iron ore ...
... close parallelism of the mineral distribution with the structural directions of the rock it seems that on the whole crystallization was syn- to late - kinematic , the late - kinematic growth having healed the axial planes . Iron ore ...
Page 24
... close to the South Khasi Batholith up to the Sophetbneng hill . This belt of steep dip is followed to the south by a zone of more moderate dips and open folds . In this form , it passes below the Mesozoic capping ( Fig . 23 ) . In fact ...
... close to the South Khasi Batholith up to the Sophetbneng hill . This belt of steep dip is followed to the south by a zone of more moderate dips and open folds . In this form , it passes below the Mesozoic capping ( Fig . 23 ) . In fact ...
Page 101
... close to the rail heads . The pegmatite veins of Bundelkhand are devoid , of accessory minerals ( mica , beryl and garnet etc. ) . Mica reported from pyrophyllite rocks of Karitoran ( Mehta , 1945 ) are only fine grained sericitic mica ...
... close to the rail heads . The pegmatite veins of Bundelkhand are devoid , of accessory minerals ( mica , beryl and garnet etc. ) . Mica reported from pyrophyllite rocks of Karitoran ( Mehta , 1945 ) are only fine grained sericitic mica ...
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Common terms and phrases
albite amphibolite amphibolite facies aureole Babina banded iron-formation Basu Batholith Berwar Bijawar biotite bodies Bundelkhand Bundelkhand granitic massif Bundelkhand massif chlorite composition conglomerate country rocks crystals developed dips dolerite dykes emplacement enclaves esmeraldite exhibit feature feldspar folds foliation formation garnet Geol GEOLOGICAL SURVEY gneisses Gneissic Complex grade grained granite granite granitic rocks granitoid groundmass H₂O hornblende inclusions INDIA Records indicate intrusive Jhansi granite Jhararghat K-feldspar Kabrai Karesra Karitoran lamellae leucogranite magmatic magnetite Mahroni mapped Mau Ranipur megacrysts metabasic metamorphism microcline migmatites minerals muscovite Mylliem Mylliem Pluton myrmekite occur outcrops parallel pegmatite perthite phenocrysts plagioclase pluton porphyritic porphyritic coarse grained porphyritic granites Precambrian pyrophyllite quartz quartz reefs quartz-sericite rock quartzites recrystallization relict samples schist schistose sedimentary sediments sericite shear Shillong Group Shillong rocks Shillong Series South Khasi Batholith sphene strike structural suggest SURVEY OF INDIA syenitic textural trending twins upto veins xenoliths zone