Records of the Geological Survey of IndiaThe 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 28
... exposed around Chipru and Matengliang in all the nala sections and along Delai river section . The representatives of these schists are seen in the Ithun Valley in the northwestern part of the area , occurring along the southern limb of ...
... exposed around Chipru and Matengliang in all the nala sections and along Delai river section . The representatives of these schists are seen in the Ithun Valley in the northwestern part of the area , occurring along the southern limb of ...
Page 29
... expose a 20 m schis thick graphitic / within chlorite schist host rock . This band is also exposed along Rohing - Hunli road near Hunli . Southeast of Hunli along the foot tract to Pika village the band shows splitting and again ...
... expose a 20 m schis thick graphitic / within chlorite schist host rock . This band is also exposed along Rohing - Hunli road near Hunli . Southeast of Hunli along the foot tract to Pika village the band shows splitting and again ...
Page 31
... exposed in two diffe- rent places . A ten metre thick pegmatite vein is seen in the schistose country rock very close to the northern boundary of the leucogranite exposure near Bomlan village . Very coarse grains of quartz , pink ...
... exposed in two diffe- rent places . A ten metre thick pegmatite vein is seen in the schistose country rock very close to the northern boundary of the leucogranite exposure near Bomlan village . Very coarse grains of quartz , pink ...
Contents
PETROLOGY AND CHEMISTRY OF LEUCOCRATIC ROCKS FROM NAGA | 1 |
BLUE SCHISTS C TYPE ECLOGITES AND GARNET BEARING MAFIC | 7 |
THE NICKELIFEROUS MAGNETITE ASSOCIATED WITH THE NAGA | 15 |
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Common terms and phrases
Abor Volcanics albite amphibolite antiform Arunachal Pradesh assemblage basin blue schists calcite Chattopadhyay cherty chlorite chromite coarse colour column Dalbuing Delai river deposits diamictite Disang Formation East Siang district eclogites Eocene epidote facies feldspar float boulders folding foliation foot hills fossils garnet Geol Geological Survey glaucophane gneiss Gondwana grey greyish Hills ophiolite belt hills/ridges Himalaya hornblende host rock Hunli intercalations Ithun valley limestone Lohit Lower mafic mafic segregations magnetite magnetite body Manipur margin matrix medium grained metamorphism mineral Miri Formation Miri Group Naga Hills Naga Hills ophiolite Nagaland nala NE-SW Nummulitic occur oligomictic conglomerate Olistostromal opaques ophiolite Permian phyllite plagioclase plagiogranite Plate quartz quartzite Radiolaria region samples sandstone schist schist band schistose sedimentaries sediments sequence serpentinites shale shows sillimanite siltstone Singh structure Surv Survey of India tectonic thick thin Tidding trending Ukhrul ultramafics Upper upto veins Vidyadharan white quartzite Yinkiong zone