Browse > Article
http://dx.doi.org/10.22807/KJMP.2020.33.4.325

Geochemical Studies on the Petrogenesis of Jurassic Peraluminaous Granitic Rocks in the area of Gwangdeoksan in the Northern Gyeonggi Massif  

Han, Chung Hee (Department of Geology, Kangwon National University)
Jeon, Hye Su (Department of Geology, Kangwon National University)
Park, Young-Rok (Department of Geology, Kangwon National University)
Publication Information
Korean Journal of Mineralogy and Petrology / v.33, no.4, 2020 , pp. 325-337 More about this Journal
Abstract
The Jurassic granitic rocks in the area of Gwangdeoksan located along the boundary between Hwacheon and Cherwon in northern Gyeonggi Massif consist of two-mica granite, garnet-bearing two-mica granite, mica-granite, and porphyritic biotite granite. These granitic rocks are calc-alkaline series and plotted in peraluminious domain in A/CNK vs. A/NK diagram. Petrographical and geochemical data indicate that the porphyritic biotite granite which intruded at the last period originated from distinct parental magma from two-mica granite, garnet-bearing two-mica granite, and mica-granite. On the basis of Rb/Sr vs. Rb/Ba diagram and Al2O3/TiO2 vs. CaO/Na2O, it is inferred the porphyritic biotite granite originated from protolith with less pelitic composition than 3 other granitic rocks. The enriched values of lithophile elements of Cs, Rb, and Ba and negative trough of Nb, P, Ti on spider diagram suggest that the peraluminous Jurassic granitic rocks in Gwangdeoksan area formed in subduction tectonic environment. Whole-rock zircon saturation thermometer indicates that the granitic rocks in the study area were melted at 692-795℃.
Keywords
Gyeonggi Massif; Gwangdeoksan; Jurassic Granitic Rocks; Protolith;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Le Maitre, R.W., Bateman, P., Dudek, A., Keller, J., Lameyre Le Bas, M.J., Sabine P.A., Schmid, R., Soresen, H., Streisen, A., Wooley, A.R., Zanettin, B., 1989, A classification of igneous rocks and glossory of terms. Blackwell, Oxford. 193p.
2 Lee, B.-J. and Kim, Y.B., 2008, Geological Report of the Sanyangri Sheet (1:50,000). Daejeon, Korea Institute of Geoscience and Mineral Resources, 41p. (in Korean with English abstract).
3 Maniar, P.D. and Piccoli, P.M., 1989, Tectonic discrimination of granitoids. Geological Society of America Bulletin, 101, 635-643.   DOI
4 Middlemost, E.A.K., 1994, Naminig materials in the magma/igneous rock system. Earth Science Review, 37, 215-224.   DOI
5 Miller, C.F., McDowell, S.M., and Mapes, R.W., 2003, Hot and cold granites? Implications of zircon saturation temperaturea and preservation of inheritance. Geology, 31, 529-532.   DOI
6 Park, K.-H., Lee, B.-J., Cho, D.-L., Kim, C.-B., 1997, Geologic report of the Hwacheon Sheet(1:50,000). Daejeon, Korea Institute of Geoscience and Mineral Resources, 33p. (in Korean with English abstract).
7 Song, K.-Y. and Cho, D.-L., 2007. Geological Report of the Gimhwa Sheet (1:50,000). Daejeon, Korea Institute of Geoscience and Mineral Resources, 58p. (in Korean with English abstract).
8 Sylvester, P.J., 1988, Post-collisional strongly peraluminous granites. Lithos, 45, 29-44.   DOI
9 Tarney, J. and Jones, C.E., 1994, Trace element geochemistry of orogenic igneous rocks and crustal growth models. Journal of Geological Society of London, 151, 855-868.   DOI
10 Taylor, S.R. and McLennan, S.M., 1985, The continental crust:its composition and evolution. Blackwell, Oxford.
11 Yi, E. J., Park, H.E., Park, Y.-R., 2017, Geochemical studies of petrogenesis of the Cretaceous Myeongseongsan Granite in the northwestern Gyeonggi Massif. The Journal of Petrological Society of Korea, 26, 327-339. (in Korean with English abstract)   DOI
12 Watson, E.B., and Harrison, T.M., 1983, Zircon saturation revisited: temperature and composition effects in a variery of crustal magma types. Earth Planetary Science Letters, 64, 295-304.   DOI
13 Wood, D.A., Joron, J.L., Treuil, M., Norry, M. and Tarney, J., 1979, Elemental and Sr isotopie variations in basic lavas from Iceland and the surrounding ocean floor. Contribibution to Mineralogy and Petrology, 70, 319-339.   DOI
14 Wood, D.A., Tarney, J. and Weaver, B.L., 1981, Trace element variations in Atlantic ocean basalts and Proterozoic dykes from Northwest Scotland: their bearing upon the nature and geochemical evolution of the upper mantle. Tectonophysics, 75, 91-112.   DOI
15 Hwang, S.K., Kee, W.-S., and Yi, K., 2017, SHRIMP zircon dating and stratigraphic implications of the Bojangsan Trachyte in the Imjingang Belt, Korea. Journal of the Geological Society of Korea, 53, 423-432 (in Korean with English abstract).   DOI
16 Zhao, L., Guo, F., Fan, W., Zhang, Q., Wu, Y., Li, J., and Yan, W., 2016, Early Cretaceous potassic volcanic rocks in the Jiangnan Orogenic Bely, East Chian: Crustal melting in response to subduction of the Pacific-Izanagi ridge? Chemical Geology, 437, 30-43.   DOI
17 Hanchar, J.M., and Watson, E.B., 2003, Zircon saturation thermometry. Reviews of Mineralogy and Geochemistry, 53, 89-112.   DOI
18 Hwang, J.H., and Kihm, Y.H., 2007, Geological Report of the Jipori Sheet (1:50,000). Daejeon, Korea Institute of Geoscience and Mineral Resources, 54p. (in Korean with English abstract).
19 Hwang, S.K., An, Y.M., and Yi, K., 2011, SHRIMP age dating and volcanism times of the igneous rocks in the Cheolwon Basin, Korea. Journal of the Petrological Society of Korea, 20, 231-241 (in Korean with English abstract).   DOI
20 Hwang, S.K. and Ahn, U.S., 2017, Geochemistry and Tectonic Implications of Triassic Bojangsan Trachyte in the Southern Margin of the Imjingang Belt, Korea. Journal of the Petrological Society of Korea, 26, 113-125 (in Korean with English abstract).   DOI
21 Irvin T.N. and Baragar W.R.A., 1971, A guide to the chemical classification of the common volcanic rocks. Canadian Journal of Earth Sciences, 8, 523-548.   DOI
22 Jung, S., and Pfander, J.A., 2007, Source composition and melting temperatures of orogenic granitoids: constraints from CaO/Na2O, Al2O3/TiO2 and accessory mineral saturation thermometry. European Journal of Mineralogy, 19, 859-870.   DOI
23 Kim, C.-B., Turek, A., Chang, H.-W., Park, Y.-S., and Ahn, K.-S., 1999, U-Pb zircon ages for Precambrian and Meso zoic plutonic rocks in the Seoul-Cheongju-Chooncheon area, Gyeonggi massif, Korea. Geochemical Journal, 33, 379-397.   DOI