Abstract
This study aims to determine the depositional setting and deposit type of the Ereen deposit in the Bayanjargalan soum of Dundgovi province and the Dartsagt deposit in the Dalanjargalan soum of Dornogovi province, Mongolia. Both deposits are hosted within the sediments of the Neoproterozoic Oortsog Formation. The ore-hosted Oortsog Formation consists of shale with muscovite-sericite-magnetite-quartz and marbled limestone. The former is characterzid by gray to black shaly texture. Major, minor and trace elements composition of 16 ore samples of these two deposits were analyzed by XRF, ICP-MS and ICP-OES. The total iron (TFe) contents of the ore samples from the Ereen deposit range from 28.83 to 51.09 wt% with an average of 41.92 wt% whereas the TFe contents of the Dartsagt deposit from 37.61 to 49.78 wt% with an average of 43.15 wt%. In the Post-Archean Australian Shale (PAAS)-normalized REY diagram, the samples from the Ereen and the Dartsagt deposits show a weakly LREE depleted and HREE weakly enriched trend. Also, in the chondrite-normalized REY diagram, negative Eu anomaly Y-enriched trend are observed. The Eu/Eu*SN values of the Ereen deposit (0.93 to 1.25, average 1.08) and the Dartsagt deposit range from 0.93 to 1.25 (avg. 1.08) and from 1.05 to 1.61 (avg. 1.22), respectively. These trace elements characteristics indicate that these two deposits belong to the Superior-type BIF deposit formed on the passive continental margin and are not likely to be associated with volcanogenic rocks.
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References
Aftabi, A., Atapour, H., Mohseni, S., and Babaki, A., 2021, Geochemical discrimination among different types of banded iron formations (BIFs): a comparative review. Ore Geology Reviews, 136, 104244. https://doi.org/10.1016/j.oregeorev.2021.104244
Alexander, B.W., Bau, M., Andersson, P., and Dulski, P., 2008, Continentally-derived solutes in shallow Archean seawater: rare earth element and Nd isotope evidence in iron formation from the 2.9 Ga Pongola Supergroup, South Africa. Geochimica et Cosmochimica Acta, 72, 378–394. https://doi.org/10.1016/j.gca.2007.10.028
Aoki, S., Kabashima, C., Kato, Y., Hirata, T., and Komiya, T., 2018, Influence of contamination on banded iron formations in the Isua supracrustal belt, West Greenland: reevaluation of the Eoarchean seawater compositions. Geoscience Frontiers, 9, 1049–1072. https://doi.org/10.1016/j.gsf.2016.11.016
Badarch, G., Dickson Cunningham, W., and Windley, B.F., 2002, A new terrane subdivision for Mongolia: implications for the Phanerozoic crustal growth of Central Asia. Journal of Asian Earth Sciences, 21, 87–110. https://doi.org/10.1016/S1367-9120(02)00017-2
Basta, F.F., Maurice, A.E., Fontbote, L., and Favarger, P.Y., 2011, Petrology and geochemistry of the banded iron formation (BIF) of Wadi Karim and Um Anab, Eastern Desert, Egypt: implications for the origin of Neoproterozoic BIF. Precambrian Research, 187, 277–292. https://doi.org/10.1016/j.precamres.2011.03.011
Bau, M. and Dulski, P., 1996, Distribution of yttrium and rare-earth elements in the Penge and Kuruman iron-formations, Transvaal Supergroup, South Africa. Precambrian Research, 79, 37–55. https://doi.org/10.1016/0301-9268(95)00087-9
Bekker, A., Slack, J., Planavsky, N., Krapez, B., Hofmann, A., Konhauser, K.O., and Rouxel, O.J., 2010, Iron formation: the sedimentary product of a complex interplay among mantle, tectonic, oceanic and biospheric processes. Economic Geology, 105, 467–508. https://doi.org/10.2113/gsecongeo.105.3.467
Beukes, N.J. and Klein, C., 1990, Geochemistry and sedimentology of a facies transition—from microbanded to granular iron-formation in the early Proterozoic Transvaal Supergroup, South Africa. Precambrian Research, 47, 99–139. https://doi.org/10.1016/0301-9268(90)90033-M
Clout, J.M.F. and Simonson, B.M., 2005, Precambrian iron formations and iron formation- hosted iron ore deposits. In: Hedenquist, J.W., Thompson, J.F.H., Goldfarb, R.J., and Richards, J.P. (eds.), Economic Geology One Hundredth Anniversary Volume 1905–2005. Society of Economic Geologists, Littleton, USA, p. 643–680. https://doi.org/10.5382/AV100.20
Cox, G.M., Halverson, G.P., Minarik, W.G., Le Heron, D.P., Macdonald, F.A., Bellefroid, E.J., and Strauss, J.V., 2013, Neoproterozoic iron formation: an evaluation of its temporal, environmental and tectonic significance. Chemical Geology, 362, 232–249. https://doi.org/10.1016/j.chemgeo.2013.08.002
Danielson, A., Möller, P., and Dulski, P., 1992, The europium anomalies in banded iron formations and the thermal history of the oceanic crust. Chemical Geology, 97, 89–100. https://doi.org/10.1016/0009-2541(92)90137-T
Douville, E., Bienvenu, P., Charlou, J.L., Donval, J.P., Fouquet, Y., Appriou, P., and Gamo, T., 1999, Yttrium and rare earth elements in fluids from various deep-sea hydrothermal systems. Geochimica et Cosmochimica Acta, 63, 627–643. https://doi.org/10.1016/S0016-7037(99)00024-1
Gaucher, C., Sial, A.N., and Frei, R., 2015, Chemostratigraphy of Neoproterozoic banded iron formation (BIF): types, age and origin. In: Ramkumar, M. (ed.), Chemostratigraphy: Concepts, Techniques and Applications. Elsevier, Amsterdam, Netherlands, p. 433–449. https://doi.org/10.1016/B978-0-12-419968-2.00017-0
Gross, G.A., 1980, A classification of iron formations based on depositional environments. The Canadian Mineralogist, 18, 215–222.
Gross, G.A. and McLeod, C., 1980, A preliminary assessment of the chemical composition of iron formations in Canada. The Canadian Mineralogist, 18, 223–229.
Hoffman, P. and Schrag, D.P., 2002, The snowball Earth hypothesis: testing the limits of global change. Terra Nova, 14, 129–155. https://doi.org/10.1046/j.1365-3121.2002.00408.x
Holland, H.D., 1973, The oceans: a possible source of iron in iron formations. Economic Geology, 68, 1169–1172. https://doi.org/10.2113/gsecongeo.68.7.1169
Hou, K., Ma, X., Li, Y., Liu, F., and Han, D., 2019, Genesis of banded iron formation (BIF), southeastern North China Craton, constraints from geochemical and H-O-S isotopic characteristics. Journal of Geochemical Exploration, 197, 60–69. https://doi.org/10.1016/j.gexplo.2018.11.005
Hu, J., Wang, H., and Wang, M., 2017, Geochemistry and origin of the Neoproterozoic Dahongliutan banded iron formation (BIF) in the western Kunlun orogenic belt, Xinjiang (NW China). Ore Geology Reviews, 89, 836–857. https://doi.org/10.1016/j.oregeorev.2017.07.020
Huston, D.L. and Logan, G.A., 2004, Barite, BIFs and bugs: evidence for the evolution of the Earth’s early hydrosphere. Earth and Planetary Science Letters, 220, 41–55. https://doi.org/10.1016/S0012-821X(04)00034-2
Ilyin, A.V., 2009, Neoproterozoic banded iron formation. Lithology and Mineral Resources, 44, 78–86. https://doi.org/10.1134/S0024490209010064
James, H.L., 1954, Sedimentary facies of iron-formation. Economic Geology, 49, 235–293. https://doi.org/10.2113/gsecongeo.493.235
Klein, C., 2005, Some Precambrian iron-formations (BIFs) from around the world: their age, geologic setting, mineralogy, metamorphism, geochemistry and origins. American Mineralogist, 90, 1473–1499. https://doi.org/10.2138/am.2005.1871
Klein, C. and Beukes, N.J., 1989, Geochemistry and sedimentology of a facies transition from limestone to iron-formation deposition in the early Proterozoic Transvaal Supergroup, South Africa. Economic Geology, 84, 1733–1774. https://doi.org/10.2113/gsecongeo.84V.1733
Klein, C. and Beukes, N.J., 1992, Proterozoic iron-formations. In: Condie, K.C. (ed.), Proterozoic Crustal Evolution. Developments in Precambrian Geology Book Series, Elsevier, Amsterdam, Nethelands, 10, p. 383–418. https://doi.org/10.1016/S0166-2635(08)70124-5
Li, H.M., Zhang, Z.J., Li, L.X., Zhang, Z.C., Chen, J., and Yao, T., 2015, Types and general characteristics of the BIF-related iron deposits in China. Ore Geology Reviews, 57, 264–287. https://doi.org/10.1016/j.oregeorev.2013.09.014
McLennan, S., 1989, Rare earth elements in sedimentary rocks: influence of provenance and sedimentary processes. Reviews in Mineralogy and Geochemistry, 21, 169–200.
Mitra, A., Elderfield, H., and Greaves, M.J., 1994, Rare earth elements in submarine hydrothermal fluids and plumes from the Mid-Atlantic Ridge. Marina Chemistry, 46, 217–235. https://doi.org/10.1016/0304-4203(94)90079-5
Pickard, A.L., 2002, SHRIMP U-Pb zircon ages of tuffaceous mudrocks in the Brockman iron formation of the Hamersley Range, western Australia. Australian Journal of Earth sciences, 49, 491–507. https://doi.org/10.1046/j.1440-0952.2002.00933.x
Pirajno, F., 2009, Hydrothermal Processes and Mineral Systems. Springer, Berlin, 1250 p. https://doi.org/10.1007/978-1-4020-8613-7
Raju, P.V.S., 2009, Petrography and geochemical behaviour of trace element, REE and precious metal signatures of sulphidic banded iron formations from the Chikkasiddavanahalli area, Chitradurga schist belt, India. Journal of Asian Earth Sciences, 34, 663–673. https://doi.org/10.1016/j.jseaes.2008.10.005
Wang, X., Lv, X., Cao, X., Yuan, Q., Wang, Y., Liu, W., and Ruan, B., 2016, Petrology and geochemistry of the banded iron formation of the Kuluketage block, Xinjiang, NW China: implication for BIF depositional setting. Resource Geology, 66, 313–334. https://doi.org/10.1111/rge.12107
Yang, X.Q., Zhang, Z.H., Duan, S.G., and Zhao, X.M., 2015, Petrological and geochemical features of the Jingtieshan banded iron formation (BIF): a unique type of BIF from the northern Qilian Orogenic Belt, NW China. Journal of Asian Earth Sciences, 113, 1218–1234. https://doi.org/10.1016/j.jseaes.2015.03.024
Yeo, G.M., 1981, The Late Proterozoic Rapitan glaciation in the northern Cordillera. In: Campbell, F.H.A. (ed.), Proterozoic Basins of Canada. Geological Survey of Canada, Ottawa, Canada, Paper 81–10, p. 25–46. https://doi.org/10.4095/109383
Young, G.M., 2002, Stratigraphic and tectonic setting of Proterozoic glaciogenic rocks and banded iron-formations: relevance to the snowball earth debate. Journal of African Earth Sciences, 35, 451–466. https://doi.org/10.1016/S0899-5362(02)00158-6
Acknowledgments
This research is supported by the National Research Foundation of Korea (2020R1C1C1008859 and 2022K1A3A1A08084933). We are grateful to the staff of the COAL Co., LTD. We would like to thank J. Ganbat, Head of Taisheng Development LLC, for field trip and collecting samples in the Ereen and the Dartsagt deposits.
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Iderbayar, B., Oyungerel, S. & Kim, Y. Geochemistry and depositional environment of the Neoproterozoic Ereen and Dartsagt banded iron formation (BIF) deposits in the Idermeg terrane, eastern Mongolia. Geosci J 28, 213–225 (2024). https://doi.org/10.1007/s12303-023-0041-6
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DOI: https://doi.org/10.1007/s12303-023-0041-6