Records of the Geological Survey of India, Volume 112, Part 8The Survey, 1981 - 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. |
From inside the book
Results 1-3 of 75
Page 9
... rock . Under the microscope the rock is very fine - grained and has porphyroblasts of some minerals totally altered into sericite . From the crystal outline these look more like andalusite than felspar . Magnetite is another mineral ...
... rock . Under the microscope the rock is very fine - grained and has porphyroblasts of some minerals totally altered into sericite . From the crystal outline these look more like andalusite than felspar . Magnetite is another mineral ...
Page 10
... rock grades into granite . In the southern part the quartz increases and the felspar content decreases . Thus , this porphyritic rock seems to be of metasomatic origin . The field evidences of metasomatic origin are as below : ( i ) ...
... rock grades into granite . In the southern part the quartz increases and the felspar content decreases . Thus , this porphyritic rock seems to be of metasomatic origin . The field evidences of metasomatic origin are as below : ( i ) ...
Page 20
... rock . The hill is marked by two prominent shear zones , one along the crest of the hill in quartzite and the other exposed on western flank at the contact of felspathic - quartzite with calc - silicate rock ( Plate - 1 ) . The shear ...
... rock . The hill is marked by two prominent shear zones , one along the crest of the hill in quartzite and the other exposed on western flank at the contact of felspathic - quartzite with calc - silicate rock ( Plate - 1 ) . The shear ...
Contents
RECORDS | 1 |
Geology Structure and Sulphide Mineralisation of Tosham District Bhiwani Haryana | 7 |
Geology and Geochemistry of Sulphide Mineralisation in Teejanwali Hill Mahendragarh | 17 |
15 other sections not shown
Other editions - View all
Common terms and phrases
anomaly bands basin Bhander biotite calcareous Chail chemical chromite chromite mineralisation comprises conglomerate Deoban belt Deoban Group depth Dharamsala Dharmigad district dunite dykes exposed fault felspar folds geochemical Geol Geological Survey Giri glacial glacier gneiss granite grey groundmass Haryana Himalaya ignimbrites Jamuna Jaunsar Jutogh Jutogh Thrust Kaimur Kallar kankar kankar deposits Kulu limestone Lower Main Central Thrust Mandhali Formation mapping metres minerals Morar-Chakrata nala Narkasi Naugaon Nawagaon occur pebbles Permian phenocrysts phyllite plagioclase Plate-1 porphyroblastic porphyry Pradesh quartz quartzite Quaternary Raina Ramganga rhyolite river rocks Salnian samples sand Sandstone Sauli Formation schist schistose sediments sequence sericite Shale shear zone shelly bedded kankar silt siltstone Simla Siwalik slate slope soil Spiti stratigraphic structure Surv Survey of India Table-1 tectonic thickness tion Tiuni Tons valley Tosham hill Tr Tr trend tuff lavas Unpub Upper upto values Vindhyan volcanic Yamuna valley