Records of the Geological Survey of India, Volume 56The Survey, 1926 - 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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... pegmatite : × 18 . Fig . 2. Photomicrograph of amphibole - garnet - pegmatite ; x 18 . PLATE 8. - Fig . 1. - Photomicrograph of sodalite in elæolite - sodalite rock ; × 18 . Fig . 2. - Photomicrograph of xenolith with biotite , pyroxene ...
... pegmatite : × 18 . Fig . 2. Photomicrograph of amphibole - garnet - pegmatite ; x 18 . PLATE 8. - Fig . 1. - Photomicrograph of sodalite in elæolite - sodalite rock ; × 18 . Fig . 2. - Photomicrograph of xenolith with biotite , pyroxene ...
Page 13
... Pegmatites and their associated minerals , the Peridotites and related rocks , the Deccan Trap , Recent volcanic rocks from regions . adjoining India , typical Gondwana rocks from the Giridih coalfield . and striated and facetted ...
... Pegmatites and their associated minerals , the Peridotites and related rocks , the Deccan Trap , Recent volcanic rocks from regions . adjoining India , typical Gondwana rocks from the Giridih coalfield . and striated and facetted ...
Page 32
... pegmatite veins which happens to cut across the shaft about half - way down , the country rock being well- bedded flaggy tremolite schists . The vein " dips " at a low vari- able angle towards the north and its underlying portion has ...
... pegmatite veins which happens to cut across the shaft about half - way down , the country rock being well- bedded flaggy tremolite schists . The vein " dips " at a low vari- able angle towards the north and its underlying portion has ...
Page 38
... pegmatite . A larger boss of granite is exposed at the source of the Khe Chaung in sheet 96 In this neighbour- hood the alluvial flats of the Khe Chaung carry tin ore , and have recently been worked for tin . In Medaw Island ( sheet 96 ) ...
... pegmatite . A larger boss of granite is exposed at the source of the Khe Chaung in sheet 96 In this neighbour- hood the alluvial flats of the Khe Chaung carry tin ore , and have recently been worked for tin . In Medaw Island ( sheet 96 ) ...
Page 48
... pegmatite , probably of Archæan age , traversed by a network of numerous quartz reefs and intersecting altered dolerite ( epidiorite ) dykes , and covered in 48 [ VOL . LVI . Records of the Geological Survey of India .
... pegmatite , probably of Archæan age , traversed by a network of numerous quartz reefs and intersecting altered dolerite ( epidiorite ) dykes , and covered in 48 [ VOL . LVI . Records of the Geological Survey of India .
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Common terms and phrases
20 per cent A. M. Heron apophyllite Aravalli Area in acres Assam bands beds Bihar Bihar and Orissa biotite Burma Calcutta cancrinite cassiterite Central India Central Provinces cept oil Clean product Ash Coal-fields coking Cretaceous Date of commence Decem deposits district elæolite Exogyra feet felspars field fossil froth flotation Geol Geological Survey gneisses granite Hills inch Indian coals island January Jharia Kashmir Kishengarh Lashio lignite limestone Madras Manganese Maung ment Mergui Messrs mica microcline miles Mineral oil minerals ex Mining Lease mud volcano Namma Nature of grant Novem occur okenite Orissa P. L. renewal Pakokku Pauk pegmatite Pegu Plate portion Price 1 rupee Punjab Quantity quartzites Rajputana rocks Rupee samples Seam Septem Seth shales Shan sodalite species specimens Surv Survey of India syenite Tavoy Tertiary Thongwa tons valued Upper valley Value Rupee 18 veins Weight Wolfram Yekkyin