Melanite garnet-bearing nepheline syenite minor intrusion in Mawpyut ultramafic-mafic complex, Jaintia Hills, Meghalaya

Journal of Earth System Science

Volumn 120, Issue 6, 2011, Pages 1033-1041

  Maitra, Monoj ^a   David, J S ^a   Bhaduri, S ^a  

^a GEOLOGICAL SURVEY OF INDIA   (India)

Author keywords

Mawpyut complex; Meghalaya plateau; Melanite garnet; Mesozoic magmatism; Nepheline syenite minor intrusion

Indexed keywords

EMPLACEMENT; GARNET; IGNEOUS INTRUSION; MAFIC ROCK; MAGMATISM; MESOZOIC; MINERALOGY; NEPHELINE; SYENITE; ULTRAMAFIC ROCK;

INDIA; MEGHALAYA;

EID: 84555170259     PISSN: 02534126     EISSN: 0973774X     Source Type: Journal    
DOI: 10.1007/s12040-011-0129-7     Document Type: Article

References (38)

1. Bilham R and England P 2001 Plateau 'pop-up' in the great 1897 Assam earth quake; Nature 401 806-809.
2. Bindi L, Cellai D, Melluso L, Conticelli S, Morra V and Menchetti S 1999 Crystal chemistry of clinopyroxene from alkaline undersaturated rocks of the Monte vulture volcano, Italy; Lithos 46 259-274.
3. Biswas S and Grasemann B 2005 Quantitative morphotectonics of the southern Shillong Plateau (Bangladesh-India); Australian J. Earth Sci. 97 82-103.
4. Chakraborti M K 1984 Petrology of Mundwara subvolcanic suite, Sirohi district, Rajasthan; Quart. J. Geol. Min. Met. Soc. India 56 138-156.
5. Chattopadhyay N and Hashmi S 1984 The Sung Valley alkaline-ultramafic-carbonatite complex, East Khasi Hills district, Meghalaya; Rec. GSI 113(4) 24-33.
6. Choudhuri S, Saha R, Ray J S and Bhaduri S 2009 Mawpyut intrusive complex of Jaintia Hill district, Meghalaya, Northeastern India; Geol. Soc. India 74 385-394.
7. Coffin M F, Pringle M S, Duncan R A, Gladezenko T P, Storey M, Muller R D and Gahagan L A 2002 Kerguelen hotspot magma output since 130 Ma; J. Petrol. 43 1121-1139.
8. Condie K C 1997 Sources of Proterozoic mafic dyke swarms: Constraints from Th/Ta and La/Yb ratio; Precamb. Res. 813-14.
9. Cox K G, Bell J D and Pankhurst R J 1979 The interpretation of igneous rocks; George Allen & Unwin, London, 450p.
10. Evans P 1964 The tectonic framework of Assam; Geol. Soc. India 5 80-96.
11. Gawalani L G, Rock N M S, Ramaswamy R, Griffin B J and Mulai B P 2000 Complexly zoned Ti-rich melanite schorlomite garnets from Ambardongar carbonatite complex, Deccan Igneous province, Gujrat State, western India; J. Asian Earth Sci. 18 163-174.
12. Ghosh S, Chakraborty S, Paul D K, Bhalla J K and Bishui PK 2005a New Rb-Sr isotopic ages and geochemistry of granitoids from Meghalaya and their significance in middle and late proterozoic crustal evolution; Indian Minerals 4833-44.
13. Ghosh S, Fallick A E, Paul D K and Potts PJ 2005b Geochemistry and origin of Neoproterozoic granitoids of Meghalaya, Northeast India: Implication for linkage with amalgamation of Gondwana Supercontinent; Gondwana Res. 8 421-432.
14. Gupta R P and Sen A K 1988 Imprints of Ninety East Ridge in the Shillong Plateau, Indian shield; Tectonophys. 154 335-341.
15. Irvine T N and Barager W R A 1971 A guide to chemical classification of common volcanic rocks; Canadian J. Earth Sci. 8 523-548.
16. Kumar D, Mamallan R and Dwivedy K K 1996 Carbonatite magmatism in northeast India; J. SE Asian Earth Sci. 13145-158.
17. Locock A J 2008 An Excel spreadsheet to recast analysis of garnet to end members components, and a synopsis of crystal chemistry of natural silicate garnets; Computer Geosci. 34 1769-1780.
18. Maitra M 1992 Petrology of the igneous suit of rocks along Sung Mawpyut areas, East Khassi and Jaintia Hills District, Meghalaya; Rec. GSI 125(4) 124-125.
19. Maitra M 2003 Petrology of the alkaline plugs in Patch Island, Kachhah District, Gujarat; Indian J. Geol. 75(1-4) 167-190.
20. Maitra M, Pant N C and Bhaduri S 2003 Ultramafic-mafic rock ensemble of Mawpyut, Jaintia Hill district, Meghalaya - a preliminary account; Indian Minerals 57(1-2) 75-84
21. Melluso L, Srivastava R K, Guarino V, Zanetti A and Sinha A K 2010 Mineral compositions and petrogenetic evolution of the ultramafic-alkaline-carbonatitic complex of Sung Valley, Northern India; Canadian Mineralogist 48 205-229.
22. Mitra S K and Mitra S C 2001 Tectonic setting of the Precambrian of the north-eastern India (Meghalaya Plateau) and age of Shillong Group of rocks; Geol. Surv. India Spec. Publ. 64 653-658.
23. Morimoto M, Fabrics J, Ferguson A K, Ginzburg I V, Ross M, Scifert F A and Zussman J 1988 Nomenclature of pyroxenes; Mineral. Mag. 52 535-550.
24. Nag S, Sengupta S K, Gaur R K and Abser A 1999 Alkaline rocks of Samchampi-Samteran Karbi-Anglong district, Assam, India; J. Earth Syst. Sci. 108 33-48.
25. Nambiar A R 1988 Petrology of laprophyres from East Garo Hills and West Khasi Hills district, Meghalaya; J. Geol. Soc. India 32 125-132.
26. Rajendran C P, Rajendran K, Duarah B P, Baruah S and Earnest A 2004 Interpreting the style of faulting and paleoseismicity associated with the 1897 Shillong, north-east India, earth quake: Implications for regional tectonics; Tectonics 23 TC 4009.
27. Riley T R, Leat P T, Curtis M L, Millaar I L, Duncan R A and Fazel A 2005 Early middle Jurassic dolerite dykes from western Dronning Maud Land (Antarctica) identifying the mantle sources in the Karoo large igneous province; J. Petrol. 46 1489-1524.
28. Saha A, Ganguly S, Ray J and Chatterjee N 2010 Evalution of phase chemistry and petrochemical aspects of Samchampi-Samteran differentiated alkaline complex of Mikir Hills, northeastern India; J. Earth Syst. Sci. 119(5) 675-699.
29. Saha A, Ray J, Ganguly S and Chatterjee N 2011 Occurrence of melanite garnet in syenite and ijolite-melteigite rocks of Samchampi-Samteran alkaline complex, Mikir Hills, northeastern India; Curr. Sci. 101 95-100.
30. Sarkar A, Dutta A K, Poddar B C, Kollapuri V K, Bhattacharya B K and Sanyal R 1992 Geochronological studies of early Cretaceous effissive and intrusive rocks from north eastern India; In: Prog. and Abst. Mesozoic magmatism of the eastern margin of India (ed.) Ghosh N C, pp. 28-29.
31. Srivastava R K, Heaman L M, Sinha A K and Sinha S 2005 Emplacement age and isotope geochemistry of Sung Valley Alkaline Carbonatite complex, Shillong plateau, Northeastern India: Implications for primary carbonate melt and genesis of the associated silicate rocks; Lithos 81 33-54.
32. Srivastava R K and Sinha A K 2007a Nd and Sm isotope systematics and geochemistry of plume related alkalinemafic-ultramafic igneous complex from Jesra, Shillong Plateau, northeastern India; Geol. Soc. Am. Spec. Paper 430815-830.
33. Srivastava R K and Sinha A K 2007b Petrogenesis of early Cretaceous ultramafic-mafic-alkaline-carbonatite igneous complexes from the Shillong plateau, NE India; In: Igneous petrology: 21st Century perspective (eds) Ray J S, Bhattacharyya C, pp. 143-164.
34. Strekeisen A 1976 To each plutonic rock its proper name; Earth Sci. Rev. 12 1-33.
35. Sun S and Mc Donough W F 1989 Chemical and isomatic systematics of oceanic basalts: Implication for mantle composition and processes; In: Magmatism in the ocean basins (eds) Saunders A D, Norry M J, Blackwell Science Publishers, 42 313-345.
36. Taylor S R and McLennan S M 1985 The Continental Crust: Its composition and evolution; Blackwell Science Publication, 312p.
37. Wilson M 1989 Igneous petrogenesis; Unwin Hyman, 466p.
38. Yin A, Dubey C S, Webb A A G, Kelty T K, Grove M, Gehrels G E and Burgess W P 2010 Geologic correlation of the Himalayan orogen and Indian craton: Part 1. Structural geology, U-Pb zircon geochronology and tectonic evolution of the Shillong Plateau and its neighboring regions in NE India; Geol. Soc. Am. Bull. 122(3-4) 336-359.