Pentarikhan Jejak Belah Zirkon dan Implikasinya Terhadap Genesa Batuan Granitik Di Daerah Kayutanam, Padang Panjang, Sumatera Barat
The outcrop of granitic rocks at Kayutanam area, Padang Panjang, West Sumatera is known occured during Neogene. The fission track dating method can determine the absolute age of the granitic rock in this area and the intrusive period. Fission track analysis results the age of these granitic rocks is generated from 5.1 Â± 0.5 to 19.9 Â± 1.5 mys. Considering these dating result comprehend with petrographic analysis and the location of the granitic rocks it is suggested that the granitic intrusion occurred in three periods. The first granitic intrusion period took place in the Upper part of Early Miocene (19.9 mys). The second granitic intrusion period occured during the Lower - Upper part of Middle Miocene (15.0-11.2 mys). While the latest granitic intrusion is determined generated on the Lower part of Late Miocene- Early Pliocene (10.8-5.1 mys).
Keyword : Fission track dating, petrography, granitic rocks, West Sumatera, Miocene.Â
Bemmelen, R.W. van, 1941, Berita Berkala Vulkanologi, Djawatan Geologi, Bandung Noos, 95-98, 110 p
Carpena, J., 1992, Fission Track dating of zircon : zircons from Mount Blanc Granite, Journal of Geology.100 : 411-421.
Crow, M.J , C C Johnson, McCourt & Hermanto, 1993, The Simplified geology and known metalliferous mineral occurrences, Padang Quadrangle, Southern Sumatra, Geological and Mineral Exploration Project (SSGMEP)
Fleischer, R.L., P.B.Price and R.M. Walker, 1975. Niclear Tracks in Solids : Principles and Applications. University of California Press, Berkeley.
Galbraith, R. F., 1981. On statistical models of fission track counts. Math Geol. 13,pp. 471-478.
Gleadow, A.J.W., 1981. Fission track dating methods: what are the real alternatives? Nuclear Tracks, 5: 3-14.
Green, P.F., 1981. A new look at statistics in fission track dating. Nucl. Track. Radial Means. 5, 77-86.
Hurford, and P.F. Green, 1983. The zeta age calibration on fission track dating. Isotop Geosci.285-317
Kastowo, W. L. Gerhard, S. Gafoer & T.C. Amin, 1996, Peta Geologi Lembar Padang, Sumatera, Skala 1 : 250.000, Pusat Penelitian dan Pengembangan Geologi.
Katili, J.A, 1969, Large transcurrent faults in Southeast Asia with special reference to Indonesia : Natl. Ins. Geology and Mining , Bandung, Bull , v.2 No.3, p. 1-20.
--------------, 1970a, Naplet structures and transcurrent fauls in Sumatra : Natl. Inst. Geology and Mining , Bandung , Bull , v .3 No. 1 , p. 11-28.
--------------, 1970, Additional evidence transcurrem faulting in Sumatra and Sulawesi : Natl. Inst. Geology and Mining, Bandung, Bull , v. 3 No.28, p. 15 - 28.
Piedrahita, V.A., M. Bernet, M.Chadima, G.M. Sierra, M.I. Marin-Ceron, G.E.Toro, 2017, Detrital zircon fission track thermochronology and magnetic fabric of the Amaga Formation (Colombia) : Intracontinental deformation and exhumation events in the northwestern Andes, Journal Sedimentary Geology, doi : 10.1016/j.sedgeo.2017.05.003.
Rosidi, H.M.D., S. Tjokrosapoetro & B. Pendowo , 1976 , Geologycal map of the Painan and eastern part of Muarasiberut Quadrangles , Sumatra, Scale 1:250.000.Geologycal Survey of Indonesia.
Silitonga, P.H and Kastowo , 1975 , Geologycal map of Solok Quadrangle, Sumatra, scale 1 :250.000 , Geologycal Survey of Indonesia.
Sudjana,E., U.Kurnia, D.A.Siregar & Y. Heryani, 2001, Umur Batuan Granit Asal Sumatera Barat Berdasarkan Metode Pentarikhan Jejak Belah, Jurnal Bionatura, Vol.3, No.3, 138-148
Tagami,T., Nand Lal, Sorkhabi Rasoul B., Ito H. and Nishimura S., 1988. Fission Track Dating Using External Detector Method : a Laboratory Procedure. Faculty of Science . Kyoto University, Series of Geol & Mineral. Vol. LIII.No. 1 & 2, pp. 1-30.
Westerveld, J., 1953, Eruptions of acid pumice tuffs and related phenomena along the great Sumateran fault-trough system : Pacific Sci. Cong. 7th, New Zealand, 1949, Proc. V.2, p.411-438.
Xiaoning, C., Y. Wanming, D. Hongwei, H. Naâ€™na, Li Xi, Z. Aikui, 2014, Zircon fission track thermochronology : new evidence on tectonic activity in Bayinguole area, eastern Kunlun Mountains, 2014, Journal Atomic Energy Science and Technology, v.48(2), p. 378-384.
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