Observations on the Morphology and Texture of Pyrite from Amjhore, Bihar, India
Different morphological forms of pyrite such as idiom orphic, concretionary and intraclastic varieties from the sedimentary ores of Amjhore, India are described. The concretionary pyrite is classified into: (1) loosely packed concretion, (2) compact concretion, (3) concentric concretion, (4) crescent shaped concretion, and (5) shard-shaped and irregular concretions. The significance of different morphologies exhibited by the pyrite and their textural relationships are briefly discussed.
KeywordsQuartz Geochemistry Calcite Shale Compaction
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- Ghosh RN (1967) The nature and significance of the authigenic octahedral pyrite from Amjhore, Bihar. Bull Geol Soc India 4: 77–81Google Scholar
- Guha J (1966) Mineralogical studies of the pyritic ores of Amjhore, Bihar-anote. Sci Cult 32: 254–255Google Scholar
- Guha J (1967) Sulfur isotope study of the pyritic ore of Amjhore, Shahbad district, Bihar. Unpublished PhD thesis, Jadavpur University, Calcutta, IndiaGoogle Scholar
- Kalliokoski J, Cathles L (1969) Morphology, mode of formation, and diagenetic changes in framboids. Bull Geol Soc Finland 41: 125–133Google Scholar
- Kelling G (1971) The occurrence and origin of pyrite in Ordovician greywackes from Southwest Scotland. West Commemmorative volume, Sagar (India), pp 369–386Google Scholar
- Love LG (1971) Early diagenetic polyframboidal pyrite, primary and redeposited, from the Wenlockian Denbigh Grit Group, Conway, North Wales, UK. J Sediment Petrol 41: 1038–1044Google Scholar
- Love LG, Amstutz GC (1966) Review of microscopic pyrite from the Devonian Chattanooga Shale and Rammelsberg Banderz. Fortschr Mineral 43: 273–310Google Scholar
- Nath M (1960) A note on the pyrite deposits of Shahbad, Bihar. Rec Geol Sury India 66: 595–612Google Scholar
- Ramberg H (1952) The origin of metamorphic and metasomatic rocks. University Chicago Press, Chicago, 317 pGoogle Scholar
- Ramdohr P (1958) New observations on the ores of the Witwatersrand in South Africa and their genetic significance. Trans Geol Sc S Afr 61 (Annexure): 1–50Google Scholar
- Ray A (1976) Geology and pyrite deposits of Amjhore, district Rohtas, Bihar. Unpublished M Tech Dissertation, University of Roorkee, IndiaGoogle Scholar
- Saager R (1970) Structures in pyrite from the Basal Reef in the Orange Free State Goldfield. Trans Geol Soc S Afr 73: 29–46Google Scholar