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 13
... parallel to the limbs . In the smaller scale of a thin section fold noses are often preserved between parallel bands . It is therefore to be interpreted that the prevalent foliation in these are in the nature of axial plane foliations ...
... parallel to the limbs . In the smaller scale of a thin section fold noses are often preserved between parallel bands . It is therefore to be interpreted that the prevalent foliation in these are in the nature of axial plane foliations ...
Page 16
... parallel to the trend of the axial planes . Amphibolite layers , stretched parallel to the trend of the isoclinal folds , sometimes exhibit dome and basin struc- tures induced by later folding ( Fig . 13 after Gogoi ) . Gogoi mapped an ...
... parallel to the trend of the axial planes . Amphibolite layers , stretched parallel to the trend of the isoclinal folds , sometimes exhibit dome and basin struc- tures induced by later folding ( Fig . 13 after Gogoi ) . Gogoi mapped an ...
Page 41
... parallel to the crystal edges or parallel to cracks and perthitic lamellae . In general the inclusions do not extinguish together so that the parallelism is not crystallographic . Some quartz inclusions also exhibit dimensional ...
... parallel to the crystal edges or parallel to cracks and perthitic lamellae . In general the inclusions do not extinguish together so that the parallelism is not crystallographic . Some quartz inclusions also exhibit dimensional ...
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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