Geochemistry, petrogenesis and tectonic significance of the basic volcanic units of the zildat ophiolitic mélange, indus suture zone, eastern ladakh (india)

Geodinamica Acta

Volumn 9, Issue 5, 1996, Pages 222-233

  Ahmad, T ^a   Islam, R ^a   Khanna, P P ^a   Thakur, V C ^a  

^a WADIA INSTITUTE OF HIMALAYAN GEOLOGY   (India)

Author keywords

Eastern ladakh; Geochemistry; Indus suture zone; Neo tethyan ocean; Petrogenesis; Zildat ophiolitic m lange

Indexed keywords

EID: 33846295457     PISSN: 09853111     EISSN: None     Source Type: Journal    
DOI: 10.1080/09853111.1996.11105287     Document Type: Article

References (41)

1. AHMAD T. & TARNEY J. (1991). Geochemistry and petroge-nesis of Garhwal volcanics: implications for evolution of the north Indian lithosphere. Precamb. Res., 50. 69-88.
2. BAUD A., GAETANI M., GARZANTI A., Fois E., NICORA A. & TINTORI A. (1984). Geological observations in southeastern Zanskar and adjacent Lahaul area, northwestern Himalaya. Eclogae Geol. Helv 77, 171-197.
3. BEUKEL J.V. & WORTEL R. (1992). Ridge-trench interaction: A possible mechanism for ophiolite emplacement. Ofioliti, 17,41-154.
4. BHAT M.I. & AHMAD T. (1990). Petrogenesis and the mantle source characteristics of the Abor Volcanic rocks, eastern Himalaya. J. Geol. Soc. India, 36, 227-246.
5. Bougauit H., Joran J.L. & Treuil M. (1980). The primordial chondritic nature and large scale heterogeneties in the mantle: evidence from high and low partition coefficient elements in oceanic basalts. Phil. Trans. R. Soc. London, 297, 203-213.
6. BROOKFIELD M.E. & REYNOLDS PH. (1981). Late Cretaceous emplacement of the Indus suture zone ophiolitic melanges and Eocene-Oligocene magmatic arc on the northern edge of the Indian plate. Earth Planet. Sci. Lett., 55, 157-162.
7. DE BAAR H.J.W., BACON M.P., BREWER P.G. & BRULAND K.W. (1985). Rare earth elements in the Pacific and Atlantic oceans. Geochim. Costnochim. Acta, 49. 1943-1959.
8. DIETRICH V.J., FRANK W. & Honegger K. (1983). A Jurassic-Cretaceous Island arc in the Ladakh Himalayas. J. Volcano!.Geotherm.Res., 18, 405-433.
9. ERLANK A.J., DUNCAN A.R., MARSH J.S., SWEENEY R.J., HAWKESWORTH C.J., MILNER S.C., MILLER RMCG. & ROGER N.W. (1988). A laterally extensive geochemical discontinuity in the sub-continental Gondwana lithosphere. In Geochemical Evolution of the continental crust, conf. Abstr. Pocos de Caldes, Brazil,11-16 July, 1988, 1-10.
10. Fitton J.G. & Dunlop H.M. (1985). The Cameroon line, West Africa and its bearing on the origin of oceanic and continental alkali basalt. Earth Planet. Sci. Lett., 72, 23-38.
11. GANSSER A. (1977). The great suture zone between the Himalaya and Tibet a preliminary account. Collo Int. CNRS Paris No.261. Ecologie et Géologie de L'Himalaya. 181-191.
12. GOVINDARAJU K. (1994). Compilation of working values and sample description for 383 geostandards, Geostandards Newsletter, 18, special issue, 1-158.
13. Hanson G.N. (1980). Rare earth elements in petrogenetic studies of igneous rocks. Ann. Rev. Earth Planet. Sci., 8, 371-406.
14. Honegger K., Dietrich V., Frank W., Gansser A., Thoni M & Trommsdorff V. (1982). Magmatism and metamorphism in the Ladakh Himalayas (the Indus-Tsangpo Suture zone). Earth Planet.Sci. Lett., 60, 253-292.
15. Honegger K., Le Fort P., Mascle G. & Zimmermann J.L. (1989). The blueschists along the Indus Suture Zone in Ladakh NW Himalaya. J. Meta. Geol., 7, 57-72.
16. Le Fort P. (1989). The Himalayan orogenic segment. In Sengor A.M.C. (ed) Tectonic Evolution of the Tethyan Region. Kluwer Academic Publishers, 289-386.
17. Le Roex A.P. (1987). Source region of mid-ocean ridge basalts: Evidence for enrichment process. In Menzles M.A. & Hawkesworth C.J. (eds) Mantle Metasomatism, Academic press, 389-422.
18. Macdonald R., Millward D., Beddoe-Stephens B. & Laybourn-Parry J. (1988). The role of tholeiitic magmatism in English Lake district: evidence from dyke in Eskdale. Mineral. Mag., 52, 459-472.
19. Mckenzie D.(1989). Some remarks on the movement of small melt fractions in the mantle. Earth Planet. Sci. Lett., 95, 53-72.
20. Mckenzie D. & O'nions, R.K. (1991). Partial melt distributions from inversion of rare earth element concentrations. J.Petrol., 32, 1021-1091.
21. Rai H. (1987). Geochemical study of volcanics associated with Indus ophiolitic melange in western Ladakh, J & K. Ofioliti, 12, 71-82.
22. Rathi M.S., Khanna P.P. & Mukherjee P.K. (1991). Determinaiton of ten rare-earth elements and ytrium in silicate rocks by ICP-AES without separation and preconcentration. Talanta, 38, 329-332.
23. Saunders A.D., Norry M.J. & Tarney J. (1988). Origin of MORB and chemically depleted mantle reservoirs: trace element constraints. In Menzies M.A. & Cox K.G. (eds) Oceanic and continental lithosphere: Similarities and differences. J.Petrol. Spec, vol., 415-455
24. Scholl D.W., Huene R.V., Valuer T.L. & Howell D.G. (1980). Sedimentary masses and concepts about tectonic processes at underthrust ocean margins. Geology, 8, 564-568.
25. Searle M.P. (1983). Stratigraphy, structure and evolution of the Tibetan-Tethys zones in the Zanskar and Indus suture zone in Ladakh Himalaya. Trans. R. Soc. Edinh. Earth Sci., 73, 205-219.
26. Searle M.P., Cooper D.J.W. & Rex A.J. (1988). Searle M.P. Collision tectonics of the Ladakh-Zanskar Himalaya. Phil. Trans. R. Soc. London, A-326, 117-150.
27. Shankar R., Pandhi N., Prakash G., Thussu J.L. & Wangdus C. (1976). Recent geological studies in upper Indus valley and the plate tectonics. Geol.Surv. India, Misc. Publ., 34, 41-56.
28. Sinha A.K. & Mishra M. (1992a). Plume activity and seamounts in Neotethys: Evidence supported by geochemical and geochronological data. J.Him.Geol., 3, 179-189.
29. Sinha A.K. & Mishra M. (1992b). Emplacement of the ophiolitic melange along continental collision zone otlndus Suture Zone in Ladakh Himalaya, India. J.Him.Geol, 3, 179-189.
30. Sinha A.K. & Upadhyay R. (1990). Subduction accretion and subduction kneading : A possible mechanism for the incorporation of sedimentary sequences within the ophiolitic melange belt in the western Ladakh Himalaya, India. J. Him. Geol, 1, 259-264.
31. Smedley P.L. (1988). Trace element and isotopic variations in Scottish and Irish Dinantian Volcanism: evidence for an OIB-like mantle source. J. Petrol. 29, 413-443.
32. Sun S.S. & Mcdonough W.F. (1989). Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In Saunders A.D. & Norry M.J (eds) Magmatism in Ocean Basins. Geol Soc. London Spec. Publ., 42, 313-345.
33. Sun S.S. & Nesbitt R.W. (1978). Petrogenesis of Archean ultrabasic and basic volcanics: evidence from rare earth elements. Contrib. Mineral. Petrol, 65, 301-325.
34. Thakur V.C. (1987). Plate tectonic interpretation of the western Himalaya. Tectonophysics, 134, 91-102.
35. Thakur V.C (1992). Geology of Western Himalaya. Pergamon Press. Oxford, 355 p.
36. Thakur V.C & Misra D.K. (1984). Tectonic framework of Indus and Shyok Suture zones in eastern Ladakh, northwest Himalaya. Tectonophysics, 101, 207-220.
37. Thakur V.C & Virdi N.S. (1979). Lilhostratigraphy, structural framework, deformation and mctamorphism of the south-eastern region of Ladakh, Kashmir Himalaya, India. Him. Geol, 9, 11-25.
38. Virdi N.S., Thakur V.C. & Kumar S.(1977). Blue schist facies metamorphism from the Indus suture zone of Ladakh and its significance. Him. Geol, 7, 479-482.
39. Walsh J.N., Buckley F. & Barker J. (1981). The Simultaneous determination of the rare-earth elements in rocks using inductively coupled plasma source Spectrometry. Chem. Geol, 33. 141-153.
40. Winchester J.A. & Floyd P.A. (1977). Geochemical discrimination of different magma series and their differentiation products using immobile elements. Chem. Geol, 20,325-344.
41. Zindler A. & Hart S.R. (1986), Chemical geodynamics. Ann.Rev.Earth Planet Sci., 14, 493-571.