Records of the Geological Survey of India, Volume 115, Part 5The 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 79
... lode has no clear contacts to distinguish it from the surrounding rock , assay data are absolutely essential for its demar- cation . For this the entire lode has to be systema- tically sampled , making suitable sub - divisions across the ...
... lode has no clear contacts to distinguish it from the surrounding rock , assay data are absolutely essential for its demar- cation . For this the entire lode has to be systema- tically sampled , making suitable sub - divisions across the ...
Page 87
... lode and the wall rock , or between the ore and the waste within the lode , Assay data are therefore essential for fixing of the ore boundaries . As per the current practice in Hutti gold mines lode is explored at a level by a drift ...
... lode and the wall rock , or between the ore and the waste within the lode , Assay data are therefore essential for fixing of the ore boundaries . As per the current practice in Hutti gold mines lode is explored at a level by a drift ...
Page 88
... lode is taken as ore provided the average thus obtained is above the minimum payable grade . lengthwise extent of the lode to be stoped is then determined on the basis of the widthwise averages thus calculated for the drift , and ...
... lode is taken as ore provided the average thus obtained is above the minimum payable grade . lengthwise extent of the lode to be stoped is then determined on the basis of the widthwise averages thus calculated for the drift , and ...
Contents
Records | 1 |
Lithostratigraphy of Cretaceous and Palaeocene Rocks of Tiruchirapalli district Tamil Nadu South India R Sundaram and P S Rao | 9 |
The Pyroxene Granulite Khondalite Charnockite and Gneiss of Keralatheir interrelationship P V Sukumaran M Senthiappan and A R Nambiar | 24 |
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alluvial Anaipadi Andhra Pradesh Ariyalur Ariyalur Group average grade Bandar basin beach ridges beds biotite biotite gneiss boundaries carbon caves channel charnockite clay coast coastal conglomerate Cretaceous Cuddapah cut-off cyclonic storm deltaic deposits developed dibba dissected pediment district Divi drainage dunes dykes flood garnet Geol Geological Survey gneiss gold field grained granite granulite grey groundwater hornblende hornblende gneiss Island Karai Kerala Khalassi khondalite kimberlite Krishna Kunnam Kurnool lamproites land landforms laterite limestone lineaments lode lower Machilipatnam mangrove Maruvattur Masula metres migmatisation migmatitic mineral minimum stoping width Nellore occur olivine oreshoot peridotite phlogopite planation pyroxene pyroxene granulite quartz river sample sandstone Sastry sediments serpentinised shale Sillakkudi silt slope soil southern stylolites sub-basin surface Surv Survey of India taluk tectonic texture tidal flats tidal waves Tiruppattur Trichinopoly Trichinopoly Group Unconformity upper Ursus Uttattur Group Vajrakarur values vegetation widthwise averages xenoliths zone