Records of the Geological Survey of India, Volume 96Geological Survey of India, 1971 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 155
... level to another . Thus , the grey and massive , fine - grained ore bodies occur near the base of the ultrabasic column ; the grey , friable ore bodies occur in three different levels in the central part ; and the brown ore occurs in ...
... level to another . Thus , the grey and massive , fine - grained ore bodies occur near the base of the ultrabasic column ; the grey , friable ore bodies occur in three different levels in the central part ; and the brown ore occurs in ...
Page 157
... levels , even allowing for the margin of inaccuracy . But for the lowest grey massive ore horizon , the lattice para- meters vary sympathetically with the Fe value . This suggests that the cell size may be controlled by Fe : Mg ratio ...
... levels , even allowing for the margin of inaccuracy . But for the lowest grey massive ore horizon , the lattice para- meters vary sympathetically with the Fe value . This suggests that the cell size may be controlled by Fe : Mg ratio ...
Page 158
... levels shows an interesting trend of variation , which is tabulated below : Top Level Upper levels of brown ore Upper friable grey ore Max . diameter of grains 0.1 to 0.3 cm . across 0.07 to 0.4 mm . across Base Thin sheet of friable ...
... levels shows an interesting trend of variation , which is tabulated below : Top Level Upper levels of brown ore Upper friable grey ore Max . diameter of grains 0.1 to 0.3 cm . across 0.07 to 0.4 mm . across Base Thin sheet of friable ...
Contents
Son Valley in Mirzapur district U P by F Ahmad | 1 |
Some Geological factors influencing the behaviour of | 42 |
The Snout of the Machoi Glacier Kashmir by | 51 |
Copyright | |
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Common terms and phrases
acid actinolite analyses Auden basalt bauxite beds Bilaspur boulders breccia brown cent by weight chemical chert chrome-rich suite chromite chromite deposits clay colour composition concentration conglomerate crystallisation crystals district dolerite dumortierite east epidote exposed faults felspar fine-grained flows folded formation formed fossils fraction friable garnet Geol Geological Survey Ghumarwin glacier grains granite grey Haritalyangar hill horizon igneous ilmenite indicated Konal Kosi laterite layers limestone Lower magma magnetite mapping material metres Middle Siwalik minerals multiple dykes multiple intrusions Mussoorie occur orthopyroxenite overlying Oxide P₂O pebbles pelitic phosphate phosphorus phyllites plagioclase porcellanites Pradesh present pumicite quartz quartzites river rock phosphate samples sandstones scarp sediments seen shales silica silicified Siwalik Siwalik rocks snout soil structure Sukinda Surv Survey of India syncline TABLE Tadpatri thick thin tourmaline types ultrabasic ultrabasic rocks unconformity Upper valley veins Vempalle Vindhyan system volcanic wall rocks zone