Records of the Geological Survey of India, Volume 48, Parts 3-4Government of India, 1917 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 123
... rhyolites and associated tuffs . In February , March and April I made extensive tours through the surrounding districts . The reader should remember that while no effort has been spared to give as complete an account as possible it is ...
... rhyolites and associated tuffs . In February , March and April I made extensive tours through the surrounding districts . The reader should remember that while no effort has been spared to give as complete an account as possible it is ...
Page 135
... rhyolites and some of the harder grits of the Pangyun system reach elevations up to 4,700 feet , though as a rule the peaks average nearer 4,000 than this . They bear no particular relation to one another and appear to be very largely ...
... rhyolites and some of the harder grits of the Pangyun system reach elevations up to 4,700 feet , though as a rule the peaks average nearer 4,000 than this . They bear no particular relation to one another and appear to be very largely ...
Page 136
... rhyolites and rhyolitic tuffs which form a kind of dome - shaped structure protruding through the younger Pangyun strata . Going west , an overthrust band of Nam Hsim sandstones is crossed before the rocks of the Chaung Magyi series are ...
... rhyolites and rhyolitic tuffs which form a kind of dome - shaped structure protruding through the younger Pangyun strata . Going west , an overthrust band of Nam Hsim sandstones is crossed before the rocks of the Chaung Magyi series are ...
Page 140
... rhyolites , rhyolitic tuffs , true tuffs of various kinds , an occasional band of volcanic breccia and subordinate layers of sandstone and felspathic grit . I regard the whole exposure as a kind of low dome rising from underneath the ...
... rhyolites , rhyolitic tuffs , true tuffs of various kinds , an occasional band of volcanic breccia and subordinate layers of sandstone and felspathic grit . I regard the whole exposure as a kind of low dome rising from underneath the ...
Page 141
... rhyolite . Flow structure is occasionally seen in hand specimens of the rhyolite , but usually a section is required before it can be made out . Typical rhyolites occur underground in Tiger Tunnel but they are here very smashed and ...
... rhyolite . Flow structure is occasionally seen in hand specimens of the rhyolite , but usually a section is required before it can be made out . Typical rhyolites occur underground in Tiger Tunnel but they are here very smashed and ...
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Common terms and phrases
1.-Annual report alluvium Alwar Alwar series anticline Aravalli Assam Baluchistan band bauxite Bawdwin Biana cent Central Provinces Chaung Magyi Chinese Coal coal-field conglomerate copper Cretaceous crosscut crystals Damdama Deccan Trap deposits Diener district east fault Fauna feet south ferruginous formation Fossils galena Geol Geological Survey Geology gneiss Godavari Gondwana gorge granite grits Himalayas hollandite Hsim India iron Kashmir Kumaon Lalsot Lalsot hills laterite lode Lower Madras Presidency Memoir Meteorites miles mineral mines Miscellaneous Notes Nagpur Narbada Naungkangyi neighbourhood Nithahar North-West Northern Shan occur ore-channel outcrops pebbles pegmatite pisolitic Plateau Limestone Price 1 rupee print).-Annual report print).-Geology prisms Production of India psilomelane Punjab quartz quartzites Rajputana rhyolites ridge river rocks romanéchite Salt-range sandstones schists shales silver Siwalik slag Spiti stage stream sulphides Survey of India Tertiary thick thin tuffs Tunnel unconformity Upper Burma valley vertical shaft Vindhyan zinc zone
Popular passages
Page 180 - Pt. 2, 1876 (price 3 Rs.) : Salt-region of Kohat, Trans-Indus. Vol. XII. Pt. 1, 1877 (price 3 Rs.) : South Mahratta Country : Pt. 2,
Page 96 - Vol. Vol. Vol. Vol. Vol. Vol. Vol. IX X XI XII XIII XIV. XV.
Page 136 - and matte were also accumulated. The coke used in reduction came from the Plean colliery in Scotland. During this year active developments took place at the mines. The Dead Chinaman Tunnel, which eventually was to reveal the great Chinaman ore body, was cleaned out and cut down to a workable size, to 324 feet in
Page 129 - of silver per ton. In 1910-11, the permanent way of the railroad was at last in good order. The vertical shaft was equipped with surface plant and enlarged. It has two hoisting compartments, a ladder and a pump way. Winding and steam plant were provided for the inclined shaft which was ventilated by two fans driven by a
Page 126 - of the country to the north and north-east is most striking in a land clothed for the most part in primeval forest. It is due to ' several causes, the destruction of the timber for fuel supply of the smelters, the. action of the acid fumes in the
Page 128 - During the first two months the "usual initial troubles were experienced, due mainly to the difficulty of obtaining suitable fluxes, but by the end of 1909, 12,762 tons of slag and ore were treated, of which 11,850 tons were Chinese slag from Bawdwin averaging
Page 128 - months it improved to 93 per cent. The total silver content of the slag and ore treated was 27,355 ozs. and the total silver content of the lead bullion produced amounted by assay to 26,398 ozs., or a recovery of
Page 129 - ozs. of silver per ton were railed to the smelters at Mandalay. The smelters treated 67,888 tons of ore and fluxes during the period under report and produced 16,337 tons of lead, which averaged £12-19 per ton, and
Page 138 - added to enable the fine slag and ore to be desulphurized before going into the blast furnaces. Additions were made to the refinery and 3,132 tons of refined lead were sold in Rangoon. In 1913-14 ending June
Page 104 - but the few angular measurements I have yet been able to make indicate that the mineral is either orthorhombic or triclinic, more probably the latter, and in either case very closely approaching the tetragonal form.