Petrographic and geochemical characteristics of the Nui Chua pegmatoid mafic-ultramafic series, Northern Vietnam: Significance in petrogenesis and Fe-Ti-V metallogenesis

Pham Thi Dung, Tran Tuan Anh, Tran Quoc Hung, Tran Trong Hoa, R. A. Shelepaev, Nguyen Hoang, Tran Quoc Cong
Author affiliations


  • Pham Thi Dung Institute of Geological Sciences, VAST, Hanoi, Vietnam
  • Tran Tuan Anh Institute of Geological Sciences, VAST, Hanoi, Vietnam
  • Tran Quoc Hung Institute of Geological Sciences, VAST, Hanoi, Vietnam
  • Tran Trong Hoa Institute of Geological Sciences, VAST, Hanoi, Vietnam
  • R. A. Shelepaev Sobolev Institute of Geology and Mineralogy, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
  • Nguyen Hoang Institute of Geological Sciences, VAST, Hanoi, Vietnam
  • Tran Quoc Cong Institute of Geological Sciences, VAST, Hanoi, Vietnam



Mafic-ultramafic, pegmatoid rocks, Fe-Ti oxide ore, Nui Chua intrusive complex, Northern Vietnam


The pegmatoid intrusions of the Nui Chua complex are one of the important mafic-ultramafic intrusive series associated with Fe-Ti-V ores in northern Vietnam. These intrusions consist of plagiowebsterite, clinopyroxenite, melanogabbronorite, mesogabbro, gabbronorite, and leucogabbronorite. The Fe-Ti oxide ores being massive or disseminated appear layered or veined in pegmatoid rocks. The geochemical characteristics of pegmatoid rocks are rich in Fe, Ti, V and poor Mg; their HREE are higher than LREE, with [La/Yb]N of 0.49 to 0.91 (average: 0.67), showing negative anomalies at Nb, Ta, Th, U, Sr, Zr and positive anomalies at Cs, Ti, and K. The chemical composition and distribution characteristics of trace and rare earth elements of mafic and ultramafic rocks show that they share the same magma source. Having the same geochemical tendency of intrusive formations, Fe-Ti oxide ores are magmatic origin associated with intrusive pegmatoid rocks. The pegmatoid rocks of the Nui Chua complex and Fe-Ti oxide ores are formed as a product of the fractional crystallization of Fe-Ti-rich residual melts after crystallization of the layered rocks.


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Bai Z.J., Zhong H., Naldrett A.J., Zhu W.G., Xu G.W., 2012. Whole-rock and mineral composition constraints on the genesis of the giant Hongge Fe-Ti-V oxide deposit in the Emeishan Large Igneous Province, Southwest China: Economic Geology, 107, 507-524. Doi: 10.2113/econgeo.107.3.507.

Borisenko A.S., Sotnikov V.I., Izokh A.E., Polyakov G.V., Obolensky A.A., 2006. Permo-Triassic mineralization in Asia and its relation to plume magmatism. Russian Geology and Geophysics (GeologiyaiGeofizika), 47(1), 170-186 (166-182).

Bui Quang Luan, Nguyen Xuan Han, Tran Quoc Hung, Hoang Huu Thanh, 1985. Age and petrogenesis of gabbroid in Northern Vietnam. Jour of Vietnamese Earth Sciences, Ha Noi, 7(1), 19-22 (in Vietnamese).

Cawthorn R.G., Ashwal L.D., 2009. Originofanorthositeand magnetitite layers in the Bushveld complex, constrained by major element compositions of plagioclase: Journal of Petrology, 50, 1607-1637. Doi: 10.1093/petrology/egp042.

Charlier B., Grove T., 2012. Experiments on liquid immiscibility along tholeiitic liquid lines of descent: Contributions to Mineralogy and Petrology, 164, 27-44. Doi: 10.1007/s00410-012-0723-y.

Chen Z., Lin W., Faure M., Lepvrier C., Vuong N.V., Tich V.V., 2014. Geochronology and isotope analysis of the Late Paleozoic to Mesozoic granitoids from northeastern Vietnam and implications for the evolution of the South China block. J. Asian Earth Sci., 86, 131-150.

Clark A.H., Kontak D.J., 2004. Fe-Ti-P oxide melts generated through magma mixing in the Antauta subvolcanic center, Peru: implications for the origin of nelsonite and iron oxide dominated hydrothermal deposits. Econ Geol., 99, 377-395.

Dovjikov A.E., Bui Phu My, Vasilevskaya E.D., Zhamoida A.I., Ivanov G.V., Izokh E.P., Le Dinh Huu, Mareichev A.M., Nguyen Van Chien, Nguyen Tuong Tri, Tran Duc Luong, Pham Van Quang, Pham Dinh Long, 1965. Geology of Northern Vietnam (in Vietnamese). Publ. House Science & Techn., Hanoi.

Eales H.V., Cawthorn R.G., 1996. The Bushveld complex, in Cawthorn, R.G., ed., Layered igneous rocks: Amsterdam, Elsevier, 181-229.

Faure M., Lepvrier C., Nguyen V.V., Vu V.T., Lind W., Chend Z., 2014. The South China block-Indochina collision: where, when, and how? Journal of Asian Earth Sciences, 79, 260-274.

Faure M., Nguyen V.V., Hoai L.T.T., Lepvrier C., 2018. Early Paleozoic or Early-Middle Triassic collision between the South China and Indochina Blocks: the controversy resolved? Structural insights from the Kon Tum massif (Central Vietnam). J. Asian Earth Sci., 166, 162-180.">

Hoang Huu Thanh, Polyakov G.V., Balykin P.A., Tran Quoc Hung, Ngo Thi Phuong, 2004. Island Arc nature of the layered intrusions of Nui Chua complex in fold belts of North Viet Nam: evidence from their geochemistry. J. Geol. Ser. B, 24, 16-28.

Lee C.A., 1996. A review of mineralization in the Bushveld complex and some other layered intrusions. In: Cawthorn RG (ed) Layered intrusions. Amsterdam, Elsevier, 103-146.

Liu P.P., Zhou M.F., Chen W.T., Boone M., Cnudde V., 2014b. Using multiphase solid inclusions to constrain the origin of the Baima Fe-Ti-(V) oxide deposit, SW China: Journal of Petrology, 55, 951-976. Doi: 10.1093/petrology/egu012.

Luan Y., Song X.Y., Chen L.M., Zheng W.Q., Zhang X.Q., Yu S.Y., She Y.W., Tian X.L., Ran Q.Y., 2014. Key factors controlling the accumulation of the Fe-Ti oxides in the Hongge layered intrusion in the Emeishan Large Igneous Province SW China: Ore Geology Reviews, 57, 518-538. Doi: 10.1016/j.oregeorev.2013.08.010.

Metcalfe I., 2002. Permian tectonic framework and palaeo-geography of SE Asia. Journal of Asian Earth Sciences, 20, 551-566.

Morse S.A., 1980. Kiglapait mineralogy II: Fe-Ti oxide minerals and the activities of oxygen and silica. J. Petrol., 21, 685-719.

Morse S.A., 1990. The differentiation of the Skaergaard intrusion. Discussion of Hunter and Sparks (Contrib Min Petrol., 95, 451-461). Contrib Min Petrol, 104- 235.

Nevolko P.A., Pham T.D., Tran T.H., Tran T.A., Ngo T.P., Fominykh P.A., 2018. Intrusion-related Lang Vai gold-antimony district (Northeastern Vietnam): geology, mineralogy, geochemistry and 40Ar/39 Ar age. Ore Geol. Rev., 96, 218-235.

Ngo Xuan Thanh, M. Santosh, Hai Thanh Tran, Hieu Trung Pham, 2015. Subduction initiation of Indochina and South China blocks: insight from the forearc ophiolitic peridotites of the Song Ma Suture Zone in Vietnam. Geol. J.. Doi: 10.1002/gj.2640.

Pang K.N., Zhou M.F., Lindsley D., Zhao D.G., Malpas J., 2008. Origin of Fe-Ti oxide ores in mafic intrusions: Evidence from the Panzhihua intrusion, SW China: Journal of Petrology, 49, 295-313. Doi:10.1093/petrology/egm082.

Pham Dinh Long (Editor), 2001. Tuyen Quang geological and Mineral resources Map at 1:200,000 scale.

Polyakov G.V., Balykin P.A., Tran Trong Hoa, Hoang Huu Thanh, Tran Quoc Hung, Ngo Thi Phuong, Petrova, T.E., Vu Van Van, Bui An Nien, Tran Tuan Anh, Hoang Viet Hang, 1996. Permian-Triassic mafic-ultramafic association of Northern Vietnam. Science and Technics “Publishing House”, Hanoi (in Vietnamese).

Polyakov G.V., Tran Trong Hoa, Akimtsev V.A., Balykin P.A., Ngo Thi Phuong, Hoang Huu Thanh, Tran Quoc Hung, Bui An Nien, Tolstykh N.D., Glotov A.I., Petrova T.E., Vu Van Van, 1999. Ore and geochemical specialization of Permo-Triassic ultramafic-mafic complexes in North Vietnam. GeologiyaiGeofizika (Russian Geology and Geophysics), 40(10), 1474-1487 (1453-1467).

G.V. Polyakov, R.A. Shelepaev, Tran TrongHoa, A.E. Izokh, P.A. Balykin, Ngo Thi Phuong, Tran Quoc Hung, Bui An Nien, 2009. The Nui Chua layered peridotite-gabbro complex as manifestation of Permo-Triassic mantle plume in northern Vietnam. Russian Geology and Geophysics, 50, 501-516.

Shi M.-F., Lin F.-C., Fan W.-Y., Deng Q., Cong F., Tran M.-D., Zhu H.-P., Wang H., 2015. Zircon U-Pb ages and geochemistry of granitoids in the Truong Son terrane, Vietnam: tectonic and metallogenic implications. J. Asian Earth Sci., 101, 101-120.">

Scoon R.N., Mitchell A.A., 1994. Discordant iron-rich ultramafic pegmatites in the Bushveld complex and their relationship to iron-rich inter-cumulus and residual liquids. Journal of Petrology, 35, 881-917.

Song X.Y., Qi H.W., Hu R.Z., Chen L.M., Yu S.Y., Zhang J.F., 2013. Formation of thick stratiform Fe-Ti oxide layers in layered intrusion and frequent replenishment of fractionated mafic magma: Evidence from the Panzhihua intrusion, SW China: Geochemistry, Geophysics, Geosystems, 14, 712-732. doi:10.1002/ggge.20068.

Tran Trong Hoa, Izokh A.E., Polyakov G.V., Borisenko A.S., Tran Tuan Anh, Balykin P.A., Ngo Thi Phuong, Rudnev S.N., Vu Van Van, Bui An Nien, 2008. Permo-Triassic magmatism and metallogeny of Northern Vietnam in relation to the Emeishan plume. Russian Geology and Geophysics (Geologiyai Geofizika) 49(7), 480-491 (637-651).

Tran Quoc Hung, Pham Tich Xuan, Bui An Nien, Polyakov G.V., Shelepaev P.A., Van Duc Tung, Tran Quoc Cong, 2019. Composition characteristics and age of Tri Nang intrusion, Northwest Vietnam. International Symposium on the 35th Anniversary of Collaboration between the Institute of Geological Sciences, VAST and the Institute of Geology and Mineralogy, SB-RAS “Geology and Metallogeny of Vietnam”, Publishing house for Science and Technology. ISBN: 978-604-913-809-6 .

Tran Van Tri and Vu Khuc (Co-editor), 2011. Geology and Resources of Vietnam. Publishing House for Sciences and Technology, 645p.

Wang C.Y., Zhou M.F., 2013. New textural and mineralogical constraints on the origin of the Hongge Fe-Ti-V oxide deposit, SW China: Mineralium Deposita, 48, 787-798. Doi: 10.1007/s00126-013-0457-4.

Zaw Khin, Meffre S., Lai C.-K., Burrett C., Santosh M., Graham I., Manaka T., Salam A., Kamvong T., Cromie P., 2014. Tectonics and metallogeny of mainland Southeast Asia - a review and contribution. Gondwana Res., 26, 5-30.">

Zhou M.F., Robinson P.T., Lesher C.M., Keays R.R., Zhang C.J., Malpas J., 2005. Geochemistry, petrogenesis and metallogenesis of the Panzhihua gabbroic layered intrusion and associated Fe-Ti-V oxide deposits, Sichuan province, SW China: Journal of Petrology, 46, 2253-2280. Doi: 10.1093/petrology/egi054.

Zhou M.F., Chen W.T., Wang C.Y., Prevec S.A., Liu P.P., Howarth G.H., 2013. Two stages of immiscible liquid separation in the formation of Panzhihua-type Fe-Ti-V oxide deposits, SW China: Geoscience Frontiers, 4, 481-502. Doi: 10.1016/




How to Cite

Dung, P. T., Anh, T. T., Hung, T. Q., Hoa, T. T., Shelepaev, R. A., Hoang, N., & Cong, T. Q. (2020). Petrographic and geochemical characteristics of the Nui Chua pegmatoid mafic-ultramafic series, Northern Vietnam: Significance in petrogenesis and Fe-Ti-V metallogenesis. Vietnam Journal of Earth Sciences, 43(1), 81–95.




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