Records of the Geological Survey of India, Volume 107Geological Survey of India, 1976 - 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 8
... Alteration The sulphide ore minerals are intimately associated with the sheared and altered schistose rocks containing epidote , zoisite , clinozoisite , actinolite , tremolite , chlorite , pale yellow phlogopitic biotite and ...
... Alteration The sulphide ore minerals are intimately associated with the sheared and altered schistose rocks containing epidote , zoisite , clinozoisite , actinolite , tremolite , chlorite , pale yellow phlogopitic biotite and ...
Page 9
... alteration with the formation of epidote , zoisite , clinozoisite and chlorite mark this stage of alteration . Most of the earlier greenish brown biotite and garnet were altered . 3. This was accompanied or closely followed by potassic ...
... alteration with the formation of epidote , zoisite , clinozoisite and chlorite mark this stage of alteration . Most of the earlier greenish brown biotite and garnet were altered . 3. This was accompanied or closely followed by potassic ...
Page 15
... altered . The amygdules are usually confined to the tops of the flows . Besides this , recognizable zones of vesiculated lavas exist at the top of each of the flows . Most of the volcanic rocks can be classed as basalts , but they occur ...
... altered . The amygdules are usually confined to the tops of the flows . Besides this , recognizable zones of vesiculated lavas exist at the top of each of the flows . Most of the volcanic rocks can be classed as basalts , but they occur ...
Contents
RECORDS | 2 |
A note on the polymetallic sulphide mineralisation in Askot area | 8 |
On studies of the Agglomeratic Slate and Panjal Trap in the Jhelum | 12 |
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Common terms and phrases
acidic agglomeratic slates amphibolite Archaean assemblage Bababudan Group bands Barakar basalts beds Bihar biotite Boulder Conglomerate calcareous Chitradurga chlorite clays correlation craton Cuddapah deposits Dharwar district east epidote facies felspar flora of India folds formation fossil galena Garo Hills Geoclemys Geol Geological Survey Glossopteris Glossopteris flora gneiss gneissic complex Gondwana grained greenish grey greenstone belts greyish high grade schists Ibid indicated isotopic Jour Karharbari Kashmir Kurnool laterite limestone Lower Gondwana Lower Karewas metamorphism metres mineralisation minerals Mysore non-porphyritic occur outcrops overlying Palaeobotanist Panchet Panjal trap phenocrysts Pinjor Plate Pleistocene Pliocene porphyritic Precambrian pyroxene quartz quartzite Raniganj rock types Sargur schist schist belts schistose schistose rocks sediments sequence shale Siwalik stratigraphic Supergroup Surv Survey of India Sylhet Sylhet Limestone Sylhet Sandstone Talchir Tatrot tectonic Tertiary thick unconformity Upper upto valley veins Vindhyan volcanic Western Block zeolite zone