Study of Heavy Minerals from the Vjosa and Mati river delta sediments in Albania

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Published: Nov 16, 2020
DOI: https://doi.org/10.12681/bgsg.22989
Keywords:
River Delta Deposits HM Concentrations Magnetic Susceptibility X-ray Diffractometry
Emiriana Xhaferri
Faculty of Geology and Mining, Polytechnic University of Tirana, Albania
https://orcid.org/0000-0002-8597-8408
Ruben Corijn
Department of Earth and Environmental Sciences, Catholic University of Leuven, Belgium Celestijnenlaan 200e - box 2408, 3001 Leuven
Agim Sinojmeri
Faculty of Geology and Mining, Polytechnic University of Tirana, Rruga e Elbasanit, Tirana, Republic of Albania
Rudy Swennen
Department of Earth and Environmental Sciences, Catholic University of Leuven, Belgium Celestijnenlaan 200e - box 2408, 3001 Leuven
Çerçis Durmishi
Faculty of Geology and Mining, Polytechnic University of Tirana, Rruga e Elbasanit, Tirana, Republic of Albania
Abstract

This research is focused on the determination of the heavy minerals (HM) load of the Vjosa and Mati river delta deposits along the Albanian coastline and it is based on X-ray Diffractometry. The Albanian coastline consists of sandy beaches at the north (Adriatic coastline) and rocky escarpments at the south (Ionian coastline). Several layers of heavy mineral deposits, up to 50 cm thick, with heavy mineral fraction up to 95% and 88% of total sample for Vjosa and Mati sediments respectively, are identified. The layers enriched in heavy minerals from Vjosa delta deposits are almost black in colour, while at Mati delta these layers are dark green coloured. Separation of the heavy from the light fraction was performed, in order to compare the different fractions between the two studied delta areas. The accumulation of HM occurs mainly in the fraction of 125-250 µm in the sediments of both deltas. The HM dominate in the magnetic field of 0.4-0.8 A/m. XRD analysis results show a great variety of minerals present in the delta samples which can be attributed to the wide variety of geological zones and lithologies that are intersected by the Vjosa and Mati rivers, respectively. In the 63-425 μm fraction rich in heavy minerals of both delta systems considerable amounts of magnetite (up to 39.4% in Vjosa samples), chromite (up to 20.2% in Vjosa samples), garnet (up to 13.6% in Vjosa samples), ilmenite (up to 8.3% in Mati samples), rutile (up to 4.7% in Mati samples), hematite (up to 2.2% in Mati samples), and zircon (up to 2.1% in Vjosa samples) are observed. Rock forming minerals such as pyroxene, amphibole, and epidote compose significant percentages of this fraction. In addition, the presence of gold grains in Vjosa delta sediments is remarkable. Both catchment areas consist to a great extent of similar formations such as the Mirdita Ophiolite Zone and the Pindos Ophiolite complex, providing thus a similar HM fingerprint at both delta areas. Minerals that occur in higher abundances reflect the extensive presence in the drained areas of related parent rocks which are rich in these minerals and which are often more vulnerable to weathering. The samples of Vjosa river delta show high percentage of carbonate constituents, which is related to the presence of carbonate rocks of the Ionian and Kruja tectonic zones within which the hydrographic network of the Vjosa River has been developed. The samples of Mati river delta show lower abundance of carbonate minerals, reflecting the limited presence of carbonate rocks at the Kruja Zone, which occur in the catchment area of the river near its mouth.

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  • Geochemistry
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References
Buhrke, V., Jenkins, R., and Smith, D., 1998. A Practical Guide for the Preparation of Specimens for X-ray Fluorescence and X-ray Diffraction Analysis. John Wiley and Sons, New York, 333 p.
Cascalho, J. and Fradique, C., 2007. The sources and hydraulic sorting of heavy minerals on the northern Portuguese continental margin. In: Mange, M.A., Wright, D.T., (Eds.), Heavy Minerals in Use, Elsevier, Amsterdam, Developments in Sedimentology, 58, 75-110, doi:10.1016/S0070-4571(07)58003-9.
Durmishi, Ç., Beshku, H., Moisiu, L., and Kavaja, V., 2005. Sedimentological and Geophysical study and monitoring of Albania coast area: Impacts in environment, infrastructure and tourism. Final report of Albanian Geological Survey (AGS) Archive, Tirana, Albania, 450 p.
Durmishi, Ç., Daja, Sh., Ago, B., Dindi, E., Sinojmeri, A., Nazaj Sh., Qorri A., and Muçi, R., 2018. Synthesis of geological, hydrogeological, and geo-touristic features of the Vjosa Watershed. Acta ZooBot Austria, 155, 41-61.
Etimita, O.O. and Beka, F.Th., 2019. Heavy mineral analysis of Eocene sands and sandstones of Nanka Formation, Cenozoic Niger Delta petroleum province. Geology, Ecology, and Landscapes, 1-6, https://doi.org/10.1080/24749508.2019.1633218
Faupl, P., Pavlopoulos, A., and Migiros, G., 2007. Provenance of Flysch Sediments and the Palaeogene-Early Miocene Geodynamic Evolution of the Hellenides: a contribution from heavy mineral investigations. Developments in Sedimentology, 58, 765-788, doi:10.1016/S0070-4571(07)58030-1
Frihy, O., 2007. The Nile Delta: Processes of Heavy Mineral sorting and depositional patterns. Developments in Sedimentology, 58, 49-74, doi:10.1016/S0070-4571(07)58002-7
Garzanti, E., Padoan, M., Andò, S., Resentini, A.,Vezzoli, G., and Lustrino, M., 2013. Weathering and relative durability of detrital minerals in equatorial climate: Sand petrology and geochemistry in the East African Rift. The Journal of Geology, 121/6, 547-580, DOI: 10.1086/673259
Hamillton, N. and Collins, L.B., 1998. Placer formation in a Holocene barrier system, Southwestern Australia. Journal of Coastal Research, 14/1, 240-255, https://www.jstor.org/stable/4298773
Ijlst, L. 1973. A laboratory overflow centrifuge for heavy liquid mineral separation. American Mineralogist, 58, 1088-1093.
ISPGJ-IGJN, 1983. Geological Map of Albania, scale 1:200,000. Tirana, Albania.
Komar, P.D., 2007. The entrainment, transport and sorting of heavy minerals by waves and currents In: Mange, M.A., Wright, D.T., (Eds.), Heavy Minerals in Use, Elsevier, Amsterdam, Developments in Sedimentology, 58, 3-48, doi:10.1016/S0070-4571(07)58001-5
Li, M.Zh. and Komar, P.D., 1992. Selective entrainment and transport of mixed size and density sands: flume experiments simulating the formation of black-sand placers. Journal of Sedimentary Research, 62/4, 584-590, DOI: 10.2110/jsr.62.584
Lotfy, M.F., 1999. Size distribution of heavy mineral grains in some modern Nile delta coastal sands, Egypt. Pakistan Journal of Marine Sciences, 8/1, 11-20.
Mange, M.A. and Maurer, H.F.W., 1992. Heavy minerals in colour. London, Chapman and Hall, 147 p. https://doi.org/10.1007/978-94-011-2308-2
Mange, M.A. and Wright, D.T., 2007. Heavy mineral in use. Development in Sedimentology, 58, 1328 p.
Milushi, I., 2015. An Overview of the Albanian Ophiolite and Related Ore Minerals. Acta Geologica Sinica, 89/2, 61-64, https://doi.org/10.1111/1755-6724.12308_39
Morton A.C., 1985. Heavy Minerals in Provenance Studies. In: Zuffa G.G. (Ed.) Provenance of Arenites, NATO ASI Series (series c: mathematical and physical sciences), Springer, Dordrecht, 148, 249-277, https://doi.org/10.1007/978-94-017-2809-6_12
Morton, A.C. and Hallsworth, C.R., 1999. Processes controlling the composition of heavy mineral assemblages in sandstones. Sedimentary Geology, 124, 3-29, http://dx.doi.org/10.1016/S0037-0738(98)00118-3
Nicolas, A., Boudier, F., and Meshi, A., 1999. Slow spreading accretion and mantle denudation in the Mirdita ophiolite (Albania). Journal of Geophysical Research, 104, 15155-15167, https://doi.org/10.1029/1999JB900126
Oberteuffer, J.A., 1974. Magnetic separation: a review of principles, devices, and applications. IEEE, Transactions on magnetics, 10/2, 223-238, DOI: 10.1109/TMAG.1974.1058315
Ostrosi, B., 1977. Shore placers of Adriatic Sea and its prospecting contribution. Faculty of Geology and Mining, 270 p.
Ostrosi, B., Qirici, V., and Grazhdani, A., 1998. The heavy minerals shore placers of Adriatic Sea in Albania. Bul. Geol. Soc. Greece, XXXII/3, 173-177.
Pupienis, D., Buynevich, I.V., and Bitinas, A., 2011. Distribution and significance of heavy-mineral concentrations along the southeast Baltic Sea coast. Journal of Coastal Research, SI 64, 1984-1988.
Rosenblum, S. and Brownfield, I., 1999. Magnetic susceptibilities of minerals. U.S.G.S., Open-File Report 99-529, https://doi.org/10.3133/ofr99529
Setiady, D. and Aryanto, N., 2009. Heavy minerals in placer deposit in Singkawang waters, west Kalimantan, related to felsic source rock of its coastal area. Bulletin of the Marine Geology, 25/1, 13-21, DOI: 10.32693/bomg.25.1.2010.21
Sinoimeri, Z., 1966. Types of placers of Adriatic Sea. Stud. Gjeol. UT, Nr. 3, 140-162.
Sinoimeri, Z., 1970. Genesis of the placers of Adriatic Sea. Bul. USHT Set. Shk. Nat. Nr. 2.
Sinoimeri, Z., Ostrosi, B., Qirici, V., Grazhdani, A., 1966. Shore placers of Adriatic Sea (monograph). Publ. UT. 600 p.
Velaj, T., 2015. New ideas on the tectonic of the Kurveleshi anticlinal belt in Albania, and the perspective for exploration in its subthrust. Petroleum, 1/4, 269-288, doi.org/10.1016/j.petlm.2015.10.013
Webster, J.R., Kight, R.P., Winburn, R.S., and Cool, C.A., 2003. Heavy mineral analysis of sandstones by Rietveld analysis. Advances in X-ray Analysis, 46, 198-203.
Xhaferri, E., Swennen, R., Corijn, R., Durmishi, Ç., Sinojmeri, A., and Alimeta, L., 2014. Mineral sediment composition of Mati and Vjosa river (Albania) deltaic deposits. Proc. XX Congress Carpathian Balkan Geological Association, 243-246.