Skip to main content
SpringerLink
Log in

The use of garnet porphyroblasts to resolve the metamorphic pressure-temperature-deformation (P-T-d) path: An example from the Imjingang belts, South Korea

  • Published:
Geosciences Journal Aims and scope Submit manuscript

Abstracts

Quantitative P-T-deformation path determination for metamorphic rocks can be revealed by an approach combined isopleths intersection of zoned garnet compositions with foliation intersection/inflexion axes (FIAs) preserved within the garnet porphyroblast. The method presented here is applied to metapelites in the Jingok Unit of the Imjingang belt, South Korea. Garnet and staurolite FIA trends are E-W to WNW-ESE (90–120°) and NE-SW to ENE-WSW (50–80°), respectively. The FIA data indicate that garnet porphyroblasts have grown under N-S to NNE-SSW bulk shortening. P-T paths for garnet growth in Grt, St and Ky zone in the Jingok Unit, calculated from geothermobarometers and the intersection of isopleths on P-T pseudosections in the MnO-Na2O-CaO-K2O-FeO-MgO-Al2O3-SiO2-H2O (MnNCKFMASH) system constructed using program THERMOCALC, are compressional heating from 545 °C at 5.3 kbar to 610–640°C at 7.9–8.8 kbar. All compositional and microtextural data and thermodynamic modeling indicate that garnet porphyroblasts have formed during compressional heating under N-S crustal shortening, whereas staurolite porphyroblasts have formed dominantly during sub-isothermal decompression with overgrowing NE/ENE FIA. Consequently, the metapelites in the Jingok Unit have experienced clockwise P-T path derived from Barrovian-type metamorphism belong in amphibolites facies.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Bhttacharya, A., Mohanty, L., Maji, A., Sen, S.K., and Raith, M., 1992, Non-ideal mixing in the phlogopiteannite binary: constraints from experimental data on Mg-Fe partitioning and reformulation of the biotitegarnet geothermometer. Contributions to Mineralogy and Petrology, 111, 87–93.

    Article  Google Scholar 

  • Bell, T.H., Fleming, P.D., and Rubenach, M.J., 1986, Porphyroblast nucleation, growth and dissolution in regional metamorphic rocks as a function of deformation partitioning during foliation development. Journal of Metamorphic Geology, 4, 37–67.

    Article  Google Scholar 

  • Bell, T.H., Ford, A., and Wang, J., 1995, A new indicator of movement direction during orogenesis: Measurement technique and application to the Alps. Terra Nova, 7, 500–508.

    Article  Google Scholar 

  • Bell, T.H., Ham, A., and Kim, H.S., 2004, Partitioning of deformation along an orogen and its effects on porphyroblast growth during orogenesis. Journal of Structural Geology, 26, 825–845.

    Article  Google Scholar 

  • Bell, T.H., Hickey, K.A., and Upton, G.J.G., 1998, Distinguishing and correlating multiple phases of metamorphism across a multiply deformed region using the axes of spiral, staircase and sigmoidally curved inclusion trails in garnet. Journal of Metamorphic Geology, 16, 767–794.

    Article  Google Scholar 

  • Bell, T.H. and Kim, H.S., 2004, Preservation of Acadian deformation and metamorphism through intense Alleghanian shearing. Journal of Structural Geology, 26, 1591–1613.

    Article  Google Scholar 

  • Chang, K-H., 1995, Aspects of geologic history of Korea. Journal of Geological Society Korea, 31, 72–90.

    Google Scholar 

  • Cho, D-L., Suzuki, K., Adachi, M., and Chwae, U., 1996, A preliminary CHIME age determination of monazite from metamorphic and granitic rocks in the Gyeonggi massif, Korea. Journal of Earth and Planetary Science, Nagoya University, 43, 49–65.

    Google Scholar 

  • Cho, M., Kim, Y., and Ahn, J., 2007, Metamorphic evolution of the Imjingang Belt, Korea: Implications for Permo-Triassic Collisional Orogeny. International Geology Review, 49, 30–51.

    Article  Google Scholar 

  • Cihan, M., Evins, P., Lisowiec, N., and Blake, K., 2006, Time constraints on deformation and metamorphism from EPMA dating of monazite in the Proterozoic Robertson River metamorphics, NE Australia. Precambrian Research, 145, 1–23.

    Article  Google Scholar 

  • Hodge, K.V. and Spear, F.S., 1982, Geothermometry, geobarometry and Al2SiO5 triple point at Mt. Moosilauke, New Hampshire. American Mineralogist, 67, 1118–1134.

    Google Scholar 

  • Holland, T.J.B. and Powell, R. 1996, Thermodynamics of order-disorder in Minerals 1: symmetric formalism applied to minerals of fixed composition. American Mineralogist, 81, 1413–1424.

    Google Scholar 

  • Jeon, E.Y. and Kwon, S-T., 1999, Metamorphism of the Gonamsan area in the western Imjingang belt: Anticlockwise P-T-t path. Journal of the Geological Society of Korea, 35, 49–72 (in Korean with English abstract).

    Google Scholar 

  • Jung, W-S., Ree, J-H., and Park, Y., 1999, Non-rotation of garnet porphyroblasts and 3-D inclusion trail data: An example from the Imjingang belt, south Korea. Tectonophysics, 307, 381–395.

    Article  Google Scholar 

  • Jung, W-S., Ree, J-H., Park, Y., and Choi, S.-H., 2002, Lattice preferred orientation of quartz inclusions within garnet porphyroblasts from the Imjingang belt, South Korea. Journal of Structural Geology, 24, 557–565.

    Article  Google Scholar 

  • Kim, H.S. and Bell, T.H., 2005, Combining compositional zoning and foliation intersection axes (FIAs) in garnet to quantitatively determine early P-T-t paths in multiply deformed and metamorphosed schists that have undergone extensive late shearing. Contributions to Mineralogy and Petrology, 149, 141–163.

    Article  Google Scholar 

  • Kim, H.S., 2001, A new approach to distinguishing multiple phases of metamorphism: Application to the Northeastern Appalachian. Geosciences Journal, 5, 65–85.

    Article  Google Scholar 

  • Kim, Y., 2002, Metamorphic evolution of pelitic schists in the Yeoncheon area, Imjingang Belt, Korea: Staurolite growth and clockwise P-T-t path. M.Sc. thesis, Seoul National University, Seoul, 49 p.

    Google Scholar 

  • Kim, Y., 2008, Parageneses and growth mechanisms of porphyroblastic and assessory minerals in politic schist of the Yeoncheon area, Imjingang belt, Korea. Ph.D. thesis, Seoul National University, Seoul, 85 p.

    Google Scholar 

  • Kretz, R., 1983, Symbols for rock-forming minerals. American Mineralogist, 68, 277–279.

    Google Scholar 

  • Loomis, T.P., 1986, Metamorphism of pelites: calculation of equilibrium assemblages and numerical simulation of the crystallization of garnet. Journal of Metamorphic Geology, 4, 201–229.

    Article  Google Scholar 

  • Powell, R. and Holland, T.J.B., 1988, An internally consistent dataset with uncertainties and correlation; 3, Applications to geobarometry, worked examples and a computer program. Journal of Metamorphic Geology, 6, 173–204.

    Article  Google Scholar 

  • Powell, R., Holland, T.J.B., and Worley, B., 1998, Calculating phase diagrams involving solid solutions via non-linear equations, with examples using THERMOCALC. Journal of Metamorphic Geology, 16, 577–588.

    Article  Google Scholar 

  • Ree, J-H., Cho, M., Kwon, S-T., and Nakamura, E., 1996, Possible eastward extension of Chinese collision belt in South Korea: The Imjingang belt. Geology, 24, 1003–1006.

    Article  Google Scholar 

  • Spear, F.S. and Selverstone, J., 1983, Quantitative P-T paths from zoned minerals: theory and tectonic applications. Contributions to Mineralogy and Petrology, 83, 348–357.

    Article  Google Scholar 

  • Spear, F.S., 1993, Metamorphic phase equilibria and pressure-temperature-time path. Mineralogical Society of America, Monograph Series, Washington D.C., 799 p.

  • Stowell, H.H., Tinkham, D.K., Goldberg, S.A., and Ouderkirk, K.A., 2001, Contact metamorphic P-T-t paths from Sm-Nb garnet ages, phase equilibria modeling, and thermobarometry. Journal Metamorphic Geology, 19, 645–660.

    Google Scholar 

  • Thompson, A.B., Tracy, R.J., Lyttle, P.T., and Thompson, J.B. Jr., 1977, Prograde reaction histories deducted from compositional zonation and mineral inclusions in garnet from the Gassets schist, Vermont, USA. American Journal of Science, 277, 1152–1167.

    Google Scholar 

  • Tracy, R.J., Robinson, P., and Thompson, A.B., 1976, Garnet composition and zoning in the determination of temperature and pressure of metamorphism. Americal Mineralogist, 61, 762–775.

    Google Scholar 

  • Vance, D. and Holland, T., 1993, A detailed isotopic and petrological study of a single garnet from the Gassets Schist, Vermont. Contributions to Mineralogy and Petrology, 114, 101–118.

    Article  Google Scholar 

  • Vance, D. and Mahar, E., 1998, Pressuretemperature paths from P-T pseudosections and zoned garnets: potential, limitation and examples from the Zanskar Himalaya, NW India. Contributions to Mineralogy and Petrology, 132, 225–245.

    Article  Google Scholar 

  • Yamaguchi, T., 1951, On the so-called Yeoncheon System and its regional metamorphism. The Journal of the Geological Society of Japan, 57, 419–438 (in Japanese with English abstract).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Earth Science Education, Kyungpook National University, Daegu, 702-701, Republic of Korea

    Hyeong Soo Kim

  2. Department of Earth and Environmental Sciences, Korea University, Seoul, 136-701, Republic of Korea

    Won-Sun Jung

Authors
  1. Hyeong Soo Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Won-Sun Jung
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Hyeong Soo Kim.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kim, H.S., Jung, WS. The use of garnet porphyroblasts to resolve the metamorphic pressure-temperature-deformation (P-T-d) path: An example from the Imjingang belts, South Korea. Geosci J 14, 111–126 (2010). https://doi.org/10.1007/s12303-010-0012-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12303-010-0012-6

Key words

Search

Navigation