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 81
... places . In most other places the rock is restricted to the fringes of leucogranite bodies . * To the northeast of Karehra Kalan a contact with the porphyritic coarse grained Jhansi granite could be delineated . The contact is mostly ...
... places . In most other places the rock is restricted to the fringes of leucogranite bodies . * To the northeast of Karehra Kalan a contact with the porphyritic coarse grained Jhansi granite could be delineated . The contact is mostly ...
Page 82
... places . The porphyritic medium grained granite becomes coarser near the contact so that it is not easy everywhere to pin - point the exact boundary between the two although within a metre or two of the probable contact the two granites ...
... places . The porphyritic medium grained granite becomes coarser near the contact so that it is not easy everywhere to pin - point the exact boundary between the two although within a metre or two of the probable contact the two granites ...
Page 96
... places and constitute one or more sets of primary lineation . Such lineation might be observed with or without the develop- ment of foliation marked by the tabular surfaces of such phenocrysts . Due to practical difficulties in finding ...
... places and constitute one or more sets of primary lineation . Such lineation might be observed with or without the develop- ment of foliation marked by the tabular surfaces of such phenocrysts . Due to practical difficulties in finding ...
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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