Petrographic and Geochemical Investigation of Dasht-e-Nawur Volcanic Rocks, Ghazni Province, Afghanistan
DOI:
https://doi.org/10.66546/aijs.v2i3.85Keywords:
Dasht-e-Nawur, Geochemistry, Petrography, Tectonic setting, X-ray Fluorescence, Volcanic basinAbstract
The Dasht-e-Nawur volcanic basin is one of the largest and best-known volcanic provinces in Afghanistan. This study investigates the petrographic characteristics, geochemical composition, and geotectonic setting of the volcanic rocks to clarify their magmatic evolution and tectonomagmatic origin. We systematically collected about ten representative rock samples. We performed petrographic analyses on thin sections using a polarizing microscope and determined major and trace geochemistry by X-ray. Petrographic observations indicate that the volcanic suite mainly comprises andesite, quartz andesite, trachy-andesite, and andesitic dacite, with predominantly porphyritic textures and massive structures. The main mineral assemblages include plagioclase, hornblende, biotite, and quartz. Geochemically, the rocks display intermediate to acidic compositions (SiO₂ = 63-79 wt.%) and belong to the calc-alkaline to alkaline magmatic series. Primitive mantle-normalized spider diagrams reveal enrichment in large-ion lithophile elements (LILE) together with marked negative Nb, Sr, P, and Ti anomalies, indicating a subduction-modified mantle source and extensive fractional crystallization of plagioclase, apatite, and Fe-Ti oxides. The volcanism of Dasht-e-Nawur is interpreted to be related to the Indian-Eurasian continental post-collision. Advanced fractional crystallization, accompanied by crustal assimilation and lithospheric thickening, primarily controlled magmatic evolution. Future research should therefore focus on high-resolution isotopic studies and accurate geochronological dating to enhance understanding of crust–mantle interactions and clarify the post-collisional magmatic and tectonic evolution of the south-central volcanic rocks.
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References
Abdullah, S., Chmyriov, V., & Dronov, V. (2008). Geology and mineral resources of Afghanistan. Volume 1.
Azizi, T. (2023). Detecting Lithium Brine in Afghanistan Using Spaceborne Hyperspectral Data. https://hdl.handle.net/2077/78257
Berhanu, G. (2019). Geology, petrology and geochemistry of volcanic rocks around Arba Minch, Southern Ethiopia. Earth, 8(3), 160-168. https://doi.org/10.11648/j.earth.20190803.14 DOI: https://doi.org/10.11648/j.earth.20190803.14
Boraiaha, C. K., Joshi, K. B., Kerr, A. C., Padhi, J. K., Mishra, S. S., & Chandan, R. (2020). Field, petrographic and geochemical characteristics of Sullya alkaline complex in the Cauvery Shear Zone (CSZ), southern India: Implications for petrogenesis. Journal of Earth System Science, 129(1), 111. https://doi.org/10.1007/s12040-020-1369-1 DOI: https://doi.org/10.1007/s12040-020-1369-1
Boulanger, M. T., Davis, R. S., & Glascock, M. D. (2012). Preliminary characterization and regional comparison of the Dasht-i-Nawur obsidian source near Ghazni, Afghanistan. Journal of archaeological science, 39(7), 2320-2328. https://doi.org/10.1016/j.jas.2012.01.038 DOI: https://doi.org/10.1016/j.jas.2012.01.038
Columbu, S., Piras, G., Sitzia, F., Pagnotta, S., Ranieri, S., Palleschi, V., Lezzerini, M., & Giamello, M. (2018). Petrographic and mineralogical characterization of volcanic rocks and surface depositions on Romanesque monuments. https://doi.org/DOI: 10.5281/zenodo.1256051
Cox, K., Bell, J., & Pankhurst, R. (1979). The Interpretation of Igneous Rocks. (No Title), 450. https://doi.org/10.1007/978-94-017-3373-1 DOI: https://doi.org/10.1007/978-94-017-3373-1
Doebrich, J. L., Wahl, R. R., Ludington, S., Chirico, P., Wandrey, C., Bohannon, R., Orris, G., Bliss, J., Wasy, A., & Younusi, M. (2006). Geologic and mineral resource map of Afghanistan (Vol. 1038). US Department of the Interior, US Geological Survey. DOI: https://doi.org/10.3133/ofr20061038
Hayes, K. A. (2018). Geochemical Evidence for Mixing Between Basin Pore Waters and Evaporated Lake Water, Dasht-e-Nawar, Afghanistan University of Nevada, Reno]. https://www.proquest.com/openview/20e7274546c91c8556aca2ad8bc7e443
James, E., Ghani, A. A., Akinola, O. O., & Asis, J. (2021). Petrology and geochemical features of Semporna volcanic rocks, Southeast Sabah, Malaysia. Sains Malaysiana. https://doi.org/DOI: 10.17576/jsm-2021-5001-02 DOI: https://doi.org/10.17576/jsm-2021-5001-02
Jensen, L. (1976). A new cation plot for classifying subalkalic volcanic rocks. Ontario Division of Mines Miscellaneous Paper, 66. https://www.scirp.org/reference/referencespapers?referenceid=2192904
Kaygusuz, A. (2022). Petrographic and Geochemical characteristics of Paleozoic Gabbroic rocks around Tasdelen (Ozdil/Trabzon, NE Turkiye). Journal of Engineering Research and Applied Science, 11(2), 2111-2122. https://journaleras.com/index.php/jeras/article/view/298
Kaygusuz, A., Aydincakir, E., Yucel, C., & Atay, H. E. (2021). Petrographic and geochemical characteristics of carboniferous plutonic rocks around Erenkaya (Gümüşhane, NE Turkey). Journal of Engineering Research and Applied Science, 10(2), 1774-1788. https://www.journaleras.com/index.php/jeras/article/view/255
King, T., Berger, B. R., & Johnson, M. R. (2014). Characterization of potential mineralization in Afghanistan: four permissive areas identified using imaging spectroscopy data (2331-1258). DOI: https://doi.org/10.3133/ofr20141071
Koralay, T. (2010). Petrographic and geochemical characteristics of upper Miocene Tekkedağ volcanics (Central Anatolia—Turkey). Geochemistry, 70(4), 335-351. https://doi.org/10.1016/j.chemer.2010.03.002 DOI: https://doi.org/10.1016/j.chemer.2010.03.002
Mack, T. J. (2020). Passive seismic survey of sediment thickness, Dasht-e-Nawar basin, eastern Afghanistan. In Military Geoscience: Bridging History to Current Operations (pp. 161-170). Springer. https://doi.org/10.1007/978-3-030-32173-4_12 DOI: https://doi.org/10.1007/978-3-030-32173-4_12
Miyashiro, A. (1974). Volcanic rock series in island arcs and active continental margins. Amer. Jour. Sci., 274. https://doi.org/10.2475/ajs.274.4.321 DOI: https://doi.org/10.2475/ajs.274.4.321
Ostrowski, S., Mostafawi, N., Noori, H., & Rajabi, A. (2010). The Greater Flamingo Phoenicopterus roseus still breeds in Dasht-e Nawar, Afghanistan.
Ostrowski, S., Rajabi, A. M., & Noori, H. (2008). Birds and mammals in Dasht-e Nawar, Afghanistan: occurrence and hunting pressure, 2007 surveys. Wildlife Conservation Society, New York, New York, USA.
Pearce, T., Gorman, B., & Birkett, T. (1977). The relationship between major element chemistry and tectonic environment of basic and intermediate volcanic rocks. Earth and Planetary Science Letters, 36(1), 121-132. https://doi.org/10.1016/0012-821X(77)90193-5 DOI: https://doi.org/10.1016/0012-821X(77)90193-5
Rohiman, A., Prijanto, D., Prabowo, A., Ratdomopurbo, A., Setiawan, R., Effendi, M., & Wahyudi, E. (2019). Geochemical characteristics of volcanic rocks from Mt. Masurai's caldera, Jambi, Indonesia. Journal of Physics: Conference Series, DOI: https://doi.org/10.1088/1742-6596/1204/1/012070
Smith, G. I. (1975). Potash and other evaporite resources of Afghanistan (2331-1258). DOI: https://doi.org/10.3133/ofr7589
Stillings, L. L., Mack, T. J., Chornack, M. P., Kalaly, S. S., Ahmadi, M. I., & Qasim, A. (2015). A Summary of Data Collected by the US Geological Survey at Dasht-e-Nawar, Afghanistan, in Support of Lithium Exploration, June-September 2014. US Department of the Interior, US Geological Survey. http://dx.doi.org/10.3133/ofr20151059. DOI: https://doi.org/10.3133/ofr20151059
Sun, S.-S., & McDonough, W. F. (1989). Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. Geological Society, London, Special Publications, 42(1), 313-345. https://doi.org/10.1144/GSL.SP.1989.042.01.19 DOI: https://doi.org/10.1144/GSL.SP.1989.042.01.19
Vikhter, B. Y., Yeremenko, G., Chmyrev, V., & Abdulla, D. (1978). Pliocene-Quaternary volcanism of Afghanistan. International Geology Review, 20(5), 525-536. https://doi.org/10.1080/00206817809471419 DOI: https://doi.org/10.1080/00206817809471419
Vural, A., Kaygusuz, A., & Akpinar, I. (2021). Petrological characteristics of late Cretaceous volcanic rocks of Demirören (Gümüşhane, NE Turkey) region. Journal of Engineering Research and Applied Science, 10(2), 1828-1842. https://www.journaleras.com/index.php/jeras/article/view/260
Zaw, K. (1990). Geological, petrogical and geochemical characteristics of granitoid rocks in Burma: with special reference to the associated W Sn mineralization and their tectonic setting. Journal of Southeast Asian Earth Sciences, 4(4), 293-335. https://doi.org/10.1016/0743-9547(90)90004-W DOI: https://doi.org/10.1016/0743-9547(90)90004-W
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Copyright (c) 2026 Shah Hussain Shafayi, Sayed Aziz Sadat, Mohammad Naeem Sarwary (Author)
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