Temporal variations in the cooling and denudation history of the Hunza plutonic complex, Karakoram Batholith, revealed by 40Ar/39Ar thermochronology

Tectonics

Volumn 15, Issue 2, 1996, Pages 403-415

  Krol, Michael A ^a   Zeitler, Peter K ^a   Poupeau, Gérard ^b   Pecher, Arnaud ^b  

^a LEHIGH UNIVERSITY   (United States)

^b Institut Dolomieu   (France)

Author keywords

[No Author keywords available]

Indexed keywords

ARGON-40/ARGON-39 DATING; COOLING; CRETACEOUS; DENUDATION; HUNZA PLUTONIC COMPLEX; THERMOCHRONOLOGY;

ASIA, KARAKORAM;

EID: 0029731260     PISSN: 02787407     EISSN: None     Source Type: Journal    
DOI: 10.1029/95TC02424     Document Type: Article

References (38)

1. Broughton, R.D., B.F. Windley, and J.M. Qasim, Reaction isograds and P-T estimates in metasediments on the edge of the Karakoram plate, Hunza, N. Pakistan, Geol. Bull. Univ. Peshawar, 18, 119-136, 1985.
2. Cerveny, P.F., C.W. Naeser, P.B. Kelemen, J.E. Lieberman, and P.K. Zeitler, Zircon fission-track ages from the Gasherbrum Diorite, Karakoram Range, northern Pakistan, Geology, 17, 1044-1048, 1989.
3. Chamberlain, C.P., P.K. Zeitler, and E. Erickson, Constraints on the tectonic evolution of the northwestern Himalaya from geochronologic and petrologic studies of Babusar Pass, Pakistan, J. Geol., 99, 82-849, 1991.
4. Crawford, M.B., Field relationships of the Karakoram batholith and metamorphic rocks of the Hunza valley, North Pakistan, paper presented at Himalayan Workshop, Leicester Univ., 1985.
5. Crawford, M.B., Leucogranites of the NW Himalaya, Ph.D. thesis, Univ. of Leice ster, Leicester, England, 1988.
6. Crawford, M.B., and M.P. Searle, Field relationships and geochemistry o f precollisional (India-Asia) granitoid magmatism in the central Karakoram, northern Pakistan, Tectonophysics, 206, 171-192, 1992.
7. Crawford, M.B., and M.P. Searle, Collision-related granitoid magmatism and crustal structure of the Hunza Karakoram, North Pakistan, in Himalayan Tectonics, edited by PJ. Treloar and M.P. Searle, Geol. Soc. Spec. Pu. London, 74, 53-68, 1993.
8. Debon, F., P. Le Fort, D. Dautel, J. Sonet, and J. L. Zimmerman, Granites of western Karakoram and northern Kohistan (Pakistan): A composite Mid-Cretaceous to Upper Cenozoic magmatism, Lithos, 20,19-40, 1987.
9. Desio, A., and E. Martina, Geology of the Upper Hunza Valley, Karakoram ,West Pakistan, Boll. Soc. Geol. liai. 91, 283-314, 1972.
10. Desio, A., and B. Zanettin, Geology of the Baltoro Basin, E. J. Brill, Leiden, Netherlands, 1970.
11. Foster, D.A., T.M. Harrison, P. Copeland, and M.T. Heizler, Effects of excess argon within large diffusion domains on K-feldspar age spectra, Geochim. Cosmochim. Acta, 54, 1699-1708, 1990.
12. Foster, D.A., A.J. Gleadow, and G. Mortimer, Rapid Pliocene exhumation in the Karakoram (Pakistan), revealed by fissiontrack thermochronology of the K2 gneiss, Geology, 22, 19-22, 1994.
13. 40Ar in biotite: Temperature, pressure and compositional effects, Geochim. Cosmochim. Acta, 45, 2461-2468, 1985.
14. Harrison, T.M., C. Wenji, P.H. Leloup, F.J. Ryerson, and P. Tapponnier, An early Miocene transition in deformation regime within the Red River Fault Zone, Yunnan, and its significance for Indo-Asian tectonics, J. Geophys. Res., 97, 7159-7182, 1992.
15. Harrison, T.M., M.T. Heizler, and O.M. Lovera, In vacuo crushing experiments and K-feldspar thermochronometry, Earth Planet. Sci. Lett., 117, 169-180, 1993.
16. Klootwijk, C.T., J.S. Gee, J.W. Peirce, G.M. Smith, and P.L. McFadden, An early India-Asia contact: Paleomagnetic constraints from Ninetyeast Ridge, ODP Leg 121, Geology, 20, 395-398, 1992.
17. Le Fort, P., F. Debon, and J. Sonet, Petrography, geochemistry and geochronology of some samples from the Karakoram Batholilh (N. Pakistan), in Granites of Himalayas, Karakoram and Hindu Kush, edited by F. A. Shams, Punjab Univ., Lahore, pp. 377-387, India, 1983.
18. 39Ar thermochronometry for slowly cooled samples having a distribution of diffusion domain sizes, J. Geophys. Res., 94, 17,917-17,935, 1989.
19. 39Ar released during step heating, J. Geophys. Res., 96, 2057-2069, 1991.
20. 39Ar ages using HIFAR reactor, J. Geol. Soc. Aust., 21, 81-89, 1974.
21. Miller, D.S., P.F. Duddy, A.J. Hurford, and C.W. Naeser, Results of interlaboratory comparison of fission-track age standards: Fission Track Workshop-1984, Nucl. Tracks Radiat. Meas., 10, 383-391, 1985.
22. Parrish, R.R., and R. Tirrul, U-Pb age of the Baltoro granite, northwest Himalaya, and implications for monazite U-Pb systematics, Geology, 17, 1076-1079, 1989.
23. Petterson, M.G., and B.F. Windley, Rb-Sr dating of the Kohistan arc-balholith in the Trans-Himalaya of N. Pakistan, and tectonic implications. Earth Planet. Sci. Lett., 74, 45-57, 1985.
24. Poupeau, G., A. Pecher, M. Benharbit, and Ö. Noyan, Ages traces de fission sur apatites et taux de dénudation plio-quatemaires au Karakorum central, C.R. Acad. Sci., Sér. II, 313, 917-922, 1991.
25. Pudsey, C.J., The Northern Suture, Pakistan: Margin of a Cretaceous island arc, Geol. Mag., 123, 405-423, 1986.
26. Ravenhurst, C.E., S.D. Willet, R.A. Donelick, and C. Beaumont, Apatite fission track thermochronology from central Alberta: Implications for the thermal history of the Western Canada Sedimentary Basin, J. Geophys. Res., 99, 20,023-20,042, 1994.
27. Rex, A.J., M.P. Searle, R. Tirrul, M.B. Crawford, D.J. Prior, D.C. Rex, and A. Barnicoat, The geochemical and tectonic evolution of the central Karakoram, North Pakistan, Philos. Trans. R. Soc. London A, 326, 229-255, 1988.
28. 39Ar analysis of a single K-feldspar sample. Earth Planet. Sci. Lett., 105, 266-278, 1991.
29. Robbins, G.A., Radiogenic argon diffusion in muscovite under hydrothermal conditions, M.S. thesis, BrownUniv., Providence, R.I., 1972.
30. Schärer, U., J. Harnet, and C.J. Allegre, The Trans-Himalayan (Gangdese) plutonic belt in the Ladakh region: A U-Pb and Rb-Sr study, Earth Planet. Sci. Lett., 67, 327-339, 1984.
31. Searle, M.P., Geology and Tectonics of the Karakoram Mountains, 358 pp., John Wiley, New York, 1991.
32. Searle, M.P., M.B. Crawford, and A.J. Rex, Field relations, geochemistry, origin and emplacement of the Baltoro granite. Central Karakoram, Trans. R. Soc. Edinburgh Earth Sci, 83, 519-538, 1992.
33. Searle, M.P., and R. Tirrul, Structural and thermal evolution of the Karakoram crust, J. Geol. Soc. London, 148, 65-82, 1991.
34. Searle, M.P., A.J. Rex, R. Tirrul, D.C Rex, A. Barnicoat, and B.F. Windley, Metamorphic, magmatic and tectonic evolution of the Central Karakoram in the Biafo-Baltoro-Hushe regions of N. Pakistan, Spec. Pap. Geol. Soc. Am., 232, 47-73, 1989.
35. Searle, M.P., D. Cooper, and A.J. Rex, Collision tectonics of the Ladakh-Zanskar Himalaya, Philos. Trans. R. Soc. London A, 326, 117-150, 1988.
36. Searle, M.P., et al., The closing of Tethys and the tectonics of the Himalaya, Geol. Soc. Am. Bull., 98, 127-151, 1987.
37. Treloar, P.J., D.C. Rex, P.G. Guise, M.P. Coward, M.P. Searle, B.F. Windley, M.G. Petterson, M.Q. Jan, and I.W. Luff, K-Ar and Ar-Ar geochronology of the Himalayan collision in NW Pakistan: Constraints on the timing of suturing, deformation, metamorphism anduplift, Tectonics, 8, 881-909, 1989.
38. 39Ar analysis, Chem. Geol. Isoto, Geosci. Sec., 65, 167-181, 1987.