Records of the Geological Survey of India, Volume 113, Part 2The Survey, 1983 - 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 14
... associated with alkaline rocks . Chemically , the carbonatites are distinct from other igneous rocks ; they are extremely high in CaO and CO , and extremely low in SiO , content . The petrographical and petrochemical characteristics ...
... associated with alkaline rocks . Chemically , the carbonatites are distinct from other igneous rocks ; they are extremely high in CaO and CO , and extremely low in SiO , content . The petrographical and petrochemical characteristics ...
Page 68
... associated with the pyrites ore body in other parts of the world , whereas there is hardly any other metallic elements of any signifi- cant concentration within the Amjhore pyrites . However , the persistent siltstone horizon ...
... associated with the pyrites ore body in other parts of the world , whereas there is hardly any other metallic elements of any signifi- cant concentration within the Amjhore pyrites . However , the persistent siltstone horizon ...
Page 77
... associated igneous rocks . Key as in Fig . 2A . Jor rocks ( Fig . 9 ) . The trace element data demonstrate that much of the observed chemical variation had been caused by varying degrees of crystallization of pyroxene and plagioclase at ...
... associated igneous rocks . Key as in Fig . 2A . Jor rocks ( Fig . 9 ) . The trace element data demonstrate that much of the observed chemical variation had been caused by varying degrees of crystallization of pyroxene and plagioclase at ...
Contents
Effects of Regional Metamorphism on Sulphide Ores at Zawar | 1 |
A Probable Zone of Carbonatite and Fenitic Rock Association | 7 |
Quantitative Correlation of Cyclic Stratigraphic Sequences | 17 |
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Common terms and phrases
aerial alkali feldspars Amjhore anomaly curve bands Bhutan Bijaigarh shale borehole borehole BSG-13 brachiopods Carbonaceous carbonate rocks carbonatite correlation Deccan basalts Deccan Trap depth Estheriella fenites flaggy folds Formation fossiliferous fossils FUNCA1 Geol geological mapping Geological Survey Girnar gneisses grains granites grey shale Himalaya host rock India light REE limestone Lithology Madhya Pradesh magma magnetite Manuscript received Mao-Khola match position medium sandstone Coarse Medium to coarse melting metamorphism micron nepheline syenite oceanic olivine Ordovician pebbly sandstone phyllites picrite plagioclase Plate pyrites pyrites bed pyrites deposit quartz quartzites ratio recrystallised rhyolites rock types sandstone sandstone and grey sandstone Carbonaceous shale sandstone Coarse sandstone sandstone Medium schists sequence shale softer sulphide specimens spectral reflectance sphalerite spilites stratigraphic subroutine sulphide minerals Surv Survey of India thickness Thimphu tion Tong-Chu trace element upper upto values veins Vindhyan volcanism Wachi-La YXMID Zawar