Records of the Geological Survey of India, Volume 108, Part 2The Survey, 1977 - 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 158
... kimberlite , while secondary sources are conglomerate , breccia , gravel and alluvium . Most of the kimberlites of ... kimberlite of the Premier Mine . In the south - west Africa melilite and carbonatite are known to occur in the area of ...
... kimberlite , while secondary sources are conglomerate , breccia , gravel and alluvium . Most of the kimberlites of ... kimberlite of the Premier Mine . In the south - west Africa melilite and carbonatite are known to occur in the area of ...
Page 159
... kimberlites are not known , may have been derived from the poorer diamond bearing rocks , like dolerite , basalts , etc. , of older age . Kimberlite Primary source of commercial diamonds is kimberlite , though it has been found in other ...
... kimberlites are not known , may have been derived from the poorer diamond bearing rocks , like dolerite , basalts , etc. , of older age . Kimberlite Primary source of commercial diamonds is kimberlite , though it has been found in other ...
Page 162
... kimberlites , which were emplaced mostly during the Cretaceous time . It has even been suggested that kimberlite - carbonatite complexes of the world are the result of the same magmatic activity . It is , there- fore , highly probable ...
... kimberlites , which were emplaced mostly during the Cretaceous time . It has even been suggested that kimberlite - carbonatite complexes of the world are the result of the same magmatic activity . It is , there- fore , highly probable ...
Contents
OF | 1 |
On the leadzinc mineralisation around Kushbani Purulia district | 36 |
Eocene ostracoda from Kolayatji area Rajasthan by V D Mamgain | 42 |
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Amboli Amilia Aravalli Bandal granite bands Barakar basalt flows belt biotite brachiopod brown carbonatite Champaner chloritic Chorhoti clay clinopyroxene coal seams coalfield collapse conglomerate cracks crinoid Deccan Basalt Deccan Traps deposits Dhauli diamonds district earthquake epicentre exposed fault fauna felspar fibrolite folding formations fossils Gansser Geol Geological Survey Ghat Section gneisses grained granite granitisation greenish grey groundmass Haora river HIGHLY PORPHYRITIC Himalayas horizon isoseismal Karewa Kashmir kimberlite kutcha kutcha-pucca lava limestone lower Mahabaleshwar Main sub-basin metamorphism metres minerals Moher sub-basin Muth Quartzite Niti Pass nodules occur olivine Ordovician outcrops pahoehoe Permian phenocrysts phyllites plagioclase Plate PORPHYRITIC Pradesh Purewa quartz quartzite RED BOLE BED river rocks sandstone schists sediments seen sequence shales shock Spiti storeyed stratigraphic structures Survey of India tectonic thickness thin trend Triassic ultrabasic Upper upto valley vertical vesicles vesicular village ZEOLITIC zone