Sains Malaysiana 50(12)(2021): 3505-3522

http://doi.org/10.17576/jsm-2021-5012-04

The Provenance and Tectonic Settings of the Greywacke Member of the Late Neoproterozoic Hazara Formation Lesser Himalayas, Northern Pakistan: Evidence from Geochemistry and Petrography

(Penentuan dan Tektonik Ahli Grewake Provenans Formasi Hazara Neoproterozoik Akhir Himalaya, Utara Pakistan: Bukti daripada Geokimia dan Petrografi)

QAMAR UZ ZAMAN DAR¹, PU RENHAI¹*, ZULQARNAIN SAJID², MUBASHIR MEHMOOD³, ABDUL WAHAB⁴, MUHAMMAD JEHANGIR KHAN⁵ & TAJJAMAL LATIF⁵

¹Department of Geology, Northwest University, 710069 Xi'an, People Republic of China

²Geosciences Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia

³Department of Geology, Abdul Wali Khan University, 23130 Mardan, Pakistan

⁴College of Engineering Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang Darul Makmur, Malaysia

⁵Institute of Geology, University of the Punjab, 54000 Lahore, Pakistan

Diserahkan: 4 November 2020/Diterima: 31 Mac 2021

ABSTRACT

The petrographic and geochemical analysis of the greywacke horizon of the late Neoproterozoic Hazara Formation from the Hazara Mountains has been investigated to determine the provenance, tectonic settings and weathering history of the sediments. The Late Neoproterozoic Hazara Formation is a thick sedimentary sequence comprising of greywacke, shale, argillites, siltstone, and limestone. The greywackes are characterized by fine to medium-grained, moderately sorted and sub-angular to sub-rounded framework grains. They are rich in quartz, lithic fragments and clay minerals. The petrographic investigation of the greywackes categorized them as feldspathic greywacke in the QFR diagram. The quartz content is higher in sandstone and may reach to 70%, which indicates a weathered felsic source. Chemical Index of Alteration values of greywacke suggests that the source region has experienced highly weathering conditions with a warm and moist climate. Various geochemical interpretations, elemental ratios like Th/Sc, La/Sc,Th/Cr, and positive Eu anomalies indicate that the greywackes of the Hazara formation derived from a felsic source and were deposited within an active continental margin tectonic settings. The main source area of the sediments of the greywackes was located to south to southeast, which may possibly be the Aravali orogeny, central Indian craton and Bundelkhand craton. Finally, the geochemical data of the major elements point to a felsic igneous provenance for the greywacke.

Keywords: Geochemistry; greywacke; Hazara Formation; late neoproterozoic; petrography

AKSTRAK

Analisis petrografi dan geokimia ufuk greiwake Formasi Hazara Neoproterozoik akhir dari Pergunungan Hazara telah dikaji untuk menentukan provenans, tetapan tektonik dan sejarah luluhawa sedimen. Formasi Hazara neoproterozoik akhir adalah urutan sedimen tebal yang terdiri daripada grewake, serpih, argilit, batu karang dan batu kapur. Grewake dicirikan oleh butiran kerangka halus hingga sederhana, tersusun dengan sederhana dan subsudut hingga subbulat. Ia kaya dengan kuarza, serpihan litik dan mineral tanah liat. Penyelidikan petrografi grewake mengkategorikannya sebagai grewake felspar dalam rajah QFR. Kandungan kuarza lebih tinggi dalam batu pasir dan mungkin mencapai 70%, yang menunjukkan sumber felsik lapuk. Indeks kimia perubahan nilai grewake menunjukkan bahawa wilayah sumbernya mengalami keadaan cuaca yang sangat panas dan lembap. Pelbagai tafsiran geokimia, nisbah unsur seperti Th/Sc, La/Sc, Th/Cr dan anomali Eu positif menunjukkan bahawa grewake pembentukan Hazara berasal daripada sumber felsik dan disimpan dalam tetapan tektonik margin benua aktif. Kawasan sumber utama sedimen grewake terletak di selatan ke tenggara, yang mungkin merupakan orogenesis Aravali, kraton India tengah dan kraton Bundelkhand. Akhirnya, data geokimia unsur-unsur utama menunjuk ke arah asal igneus felsik untuk grewake.

Kata kunci: Geokimia; grewake; pembentukan Hazara; neoproterozoik lewat; petrografi

RUJUKAN

Absar, N., Raza, M., Roy, M., Naqvi, S. & Roy, A.K. 2009. Composition and weathering conditions of Paleoproterozoic upper crust of Bundelkhand craton, Central India: Records from geochemistry of clastic sediments of 1.9 Ga Gwalior Group. Precambrian Research 168(3-4): 313-329.

As-Saruri, M.A., Rasoul, S. & Baraba, R. 2010. Sedimentary basins of Yemen: Their tectonic development and lithostratigraphic cover. Arab J. Geosci. 3: 515-527.

Basu, A. 1985. Reading provenance from Detrital Quartz. In Provenance of Arenites, edited by Zuffa, G.G. Dordrecht: Springer. pp. 231-247.

Basu, A., Young, S.W., Suttner, L.J., James, W.C. & Mack, G.H. 1975. Re-evaluation of the use of undulatory extinction and polycrystallinity in detrital quartz for provenance interpretation. J. Sediment. Res. 45(4): 873-882.

Bau, M. & Dulski, P. 1996. Anthropogenic origin of positive gadolinium anomalies in river waters. Earth and Planetary Science Letters 143: 245-255.
http://dx.doi.org/10.1016/0012-821X(96)00127-6.

Bhatia, M.R. 1983. Plate tectonics and geochemical composition of sandstones. The Journal of Geology 91(6): 611-627.

Bhatia, M.R. & Crook, K.A. 1986. Trace element characteristics of graywackes and tectonic setting discrimination of sedimentary basins. Contributions to Mineralogy and Petrology 92: 181-193.

Bossart, P., Dietrich, D., Greco, A., Ottiger, R. & Ramsay, J.G. 1988. The tectonic structure of the Hazara‐Kashmir syntaxis, southern Himalayas, Pakistan. Tectonics 7(2): 273-297.

Butt, A.A. 1972. Problems of stratigraphic nomenclature in the Hazara District, NWFP, Pakistan. Geological Bulletin of Punjab University 9: 65-69.

Cullers, R.L. 1994. The controls on the major and trace element variation of shales, siltstones, and sandstones of Pennsylvanian-Permian age from uplifted continental blocks in Colorado to platform sediment in Kansas, USA. Geochimica et Cosmochimica Acta 58(22): 4955-4972.

Cox, R., Lowe, D.R. & Cullers, R.L. 1995. The influence of sediment recycling and basement composition on evolution of mudrock chemistry in the southwestern United States. Geochim Cosmochim Acta 59(14): 2919-2940.

Dai, S., Graham, I. & Ward, C.R. 2016. A review of anomalous rare earth elements and yttrium in coal. International Journal of Coal Geology 159: 82-95. https://doi.org/10.1016/j.coal.2016.04.005.

Dar, Q.U.Z., Renhai, P., Ghazi, S., Sajid, Z., Wahab, A., Zubair, R.A. & Aziz, T. 2021. The Precambrian Hazara Formation from Hazara Mountains, Northern Pakistan. Arab J. Geosci. 14: 134. https://doi.org/10.1007/s12517-021-06496-7.

Dickinson, W.R. 1985. Interpreting provenance relations from detrital modes of sandstones. In Provenance of Arenites, edited by Zuffa, G.G. Dordrecht: Springer. pp. 333-361.

Dickinson, W.R. & Suczek, C.A. 1979. Plate tectonics and sandstone compositions. AAPG Bulletin 63(12): 2164-2182.

Dickinson, W.R., Beard, L.S., Brakenridge, G.R., Erjavec, J.L., Ferguson, R.C., Inman, K.F., Knepp, R.A., Lindberg, F.A. & Ryberg, P.T. 1983. Provenance of North American Phanerozoic sandstones in relation to tectonic setting. Geological Society of America Bulletin 94(2): 222-235.

Fedo, C.M., Nesbitt, H.W. & Young, G.M. 1995. Unraveling the effects of potassium metasomatism in sedimentary rocks and paleosols, with implications for paleoweathering conditions and provenance. Geology 23(10): 921-924.

Greco, A., Martinotti, G., Papritz, K., Ramsay, J.G. & Rey, R. 1989. The crystalline rocks of the Kaghan Valley (NE-Pakistan). Eclogae Geologicae Helvetiae 82(2): 629-653.

Herron, M.M. 1988. Geochemical classification of terrigenous sands and shales from core or log data. Journal of Sedimentary Research 58(5): 820-829.

Holland, H.D. 1978. The Chemistry of the Atmosphere and Oceans. New York: John Wiley & Sons Inc.

Hylland, M.D. 1990. Geology of the southern Gandghar range and Kherimar hills, Northern Pakistan. Oregon State University, M.Sc. Thesis (Unpublished).

Marks, P. & Ali, C.M. 1961. The geology of the Abbottabad area, with special reference to the Infra-Trias. Geological Bulletin of Punjab University 1: 47-56.

Marston, R.J. 1978. The geochemistry of the archaean clastic metasediments in relation to crustal evolution, northeastern Yilgarn Block, Western Australia. Precambrian Research 6(2): 157-175.

McLennan, S., Hemming, S., McDaniel, D. & Hanson, G. 1993. Geochemical approaches to sedimentation, provenance, and tectonics. In Processes Controlling the Composition of Clastic Sediments, edited by Johnsson, M.J. & Basu, A. Colorado: Geological Society of America. pp. 21-40.

Middlemiss, C.S. 1896. The Geology of Hazara and the Black Mountain. London: Geological Survey. pp. 302.

Nesbitt, H.W. & Young, G.M. 1996. Petrogenesis of sediments in the absence of chemical weathering: Effects of abrasion and sorting on bulk composition and mineralogy. Sedimentology 43(2): 341-358.

Nesbitt, H. & Young, G. 1984. Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic and kinetic considerations. Geochimica et Cosmochimica Acta 48(7): 1523-1534.

Nesbitt, H.W. & Young, G. 1982. Early Proterozoic climates and plate motions inferred from major element chemistry of lutites. Nature 299: 715-717.

Pettijohn, F.J., Potter, P.E. & Siever, R. 1972. Sand and Sandstone. New York: Springer Science & Business Media.

Pettijohn, F.J., Potter, P.E. & Siever, R. 1987. Sand and Sandstone. 2nd ed. New York: Springer Science & Business Media. pp. 148-290.

Qasim, M., Ding, L., Khan, M.A., Umar, M., Jadoon, I.A., Haneef, M., Baral, U., Cai, F., Shah, A. & Yao, W. 2018. Late Neoproterozoic-Early Palaeozoic stratigraphic succession, Western Himalaya, North Pakistan: Detrital zircon provenance and tectonic implications. Geological Journal 53(5): 2258-2279.

Roser, B.P. & Korsch, R.J. 1986. Determination of tectonic setting of sandstone-mudstone suites using SiO₂ content and K₂O/Na₂O ratio. The Journal of Geology 94(5): 635-650.

Roser, B. & Korsch, R. 1988. Provenance signatures of sandstone-mudstone suites determined using discriminant function analysis of major-element data. Chemical Geology 67(1-2): 119-139.

Seeber, L., Armbruster, J.G. & Quittmeyer, R.C. 1981. Seismicity and continental subduction in the Himalayan arc. In Zagros Hindukush Himalaya, Geodynamic Evolution, edited by Gupta, H.K. & Delany, F.M. Washington DC: American Geophysical Union. pp. 215-242.

Shah, M.T. & Moon, C.J. 2004. Mineralogy, geochemistry and genesis of the ferromanganese ores from Hazara area NW Himalayas northern Pakistan. J. Asian Earth Sci. 23: 1-15.

Tahirkheli, R.K. 1979. Geology of Kohistan and adjoining Eurasian and Indo-Pakistan continents, Pakistan. Geological Bulletin (University of Peshawar) 11(1): 1-30.

Taylor, S.R. 1985. An examination of the geochemical record preserved in sedimentary rocks, In The Continental Crust: Its Composition and Evolution, edited by Taylor, S.R. & McLennan, S.M. Oxford: Blackwell Scientific Publications. p. 312.

Umar, M., Betts, P., Khan, M.M.S., Sabir, M.A., Farooq, M., Zeb, A., Jadoon, U.K. & Ali, S. 2015. Signatures of late Neoproterozoic Gondwana assembly and Maronian glaciation in Lesser Himalaya: A palaeogeographical and stratigraphical approach. Acta Geologica Polonica 65(1): 1-19.

Wadia, D. 1931. The syntaxis of the northwest Himalaya: Its rocks, tectonics and orogeny. Geological Survey of India 65(2): 189-220.

Wang, D., Wang, X.L., Zhou, J.C. & Shu, X.J. 2013. Unraveling the Precambrian crustal evolution by Neoproterozoic conglomerates, Jiangnan orogen: U–Pb and Hf isotopes of detrital zircons. Precambrian Research 233: 223-236.

Wimmenauer, W, 1984. Das pravariskische Kristallin im Schwarzwald. Fortschritt der Mineralogie 62: 69-86.

Wynne, A.B. 1878. On the geology of the Salt Range in the Punjab. Geological Survey of India 14: 98.

Yeats, R.S. & Hussain, A. 1987. Timing of structural events in the Himalayan foothills of northwestern Pakistan. Geological Society of America Bulletin 99(2): 161-176.

Zeitler, P.K. 1985. Cooling history of the NW Himalaya, Pakistan. Techtonics 4(1): 127-151.

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