Browse > Article
http://dx.doi.org/10.9720/kseg.2016.4.551

Hydrochemistry and Noble Gas Isotopes of Groundwaters around the Fault Zones  

Jeong, Chan Ho (Department of Construction Safety and Disaster Prevention)
Choi, Hyeon Young (Department of Construction Safety and Disaster Prevention)
Lee, Yong Cheon (Department of Construction Safety and Disaster Prevention)
Lee, Yu Jin (Department of Construction Safety and Disaster Prevention)
Yang, Jae Ha (Soil and Groundwater Research Division, National Institute of Environmental Research)
Publication Information
The Journal of Engineering Geology / v.26, no.4, 2016 , pp. 551-559 More about this Journal
Abstract
The chemical composition and noble gas isotopes of 10 deep groundwater samples were analyzed to know the circulation of groundwaters in the Yangsan fault and the Gampo fault. The chemical types of groundwaters show the $Ca-HCO_3$ type and $Ca-SO_4(Cl)$ type, and show indistinct relationship with geology. Noble gas isotopic data of most groundwaters were plotted along the air-crust mixing line on $^3He/^4He$ vs. $4^He/^{20}Ne$ diagram, and show dominant $^3He$ of air origin except one sample that shows helium mixing of crust origin. This indicates that groundwater actively circulates along fault, and fault could not play an role of upward pathway of a deep-seated helium gas. A comparatively high $^4He$ indicates that groundwater flows in an aquifer assuring relatively enough water-rock interaction.
Keywords
Yangsan fault; chemical type; atmospheric origin; $^3He/^4He$; circulation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Aka, F. T., Kusakabe, M., Nagiouang, K., and Tanyileke, G., 2000, Noble gas isotopic compositions and water/gas chemistry of soda springs from the islands of bioko, Sotom and Annobon, along with Cameroon Volcanic Line, West Africa. Appl. Geochem., 16, 323-338.
2 Ballentine, C. J. and Burnard, P. G., 2002, Production, release and transport of noble gases in the continental crust. Rev. Mineral. Geochem, 47, 481-538.   DOI
3 Craig, H., 1961, Isotopic variations in meteoric water, American for the Advancement of Science, 133(3465), 1702- 1703.   DOI
4 Drever, J.I., 1988, The Geochemistry of Natural Waters, Prentice- Hall Englewood Cliffs, N.J., 437.
5 Government of South Australia, 2010, Technical Report, Groundwater flow across regional scale faults, Technical Report DFW 2010/15, 63.
6 Graham, D. W., 2002, Noble gas isotope geochemistry of midoceanic ridge and ocean island basalts: characterization of mantle source reservoirs. Rev. Mineral. Geochem, 47, 247- 317.   DOI
7 Ozima, M. and Podosek, F. A., 2002, Noble Gas Geochemistry 2nd edition. Cambridge Univ. Press, Cambridge, 286.
8 Green, G., Banks, E., Wilson, T., and Love, A., 2007, Grouneater recharge and flow investigation in the Western Mount Lofty Ranges, South Australia, DWLBC Report 2007/29, Government of South Australia, through Department of Water, Land and Biodiversity Conservation, Adelaide.
9 Kim, D. H., Hwang, J. H., Park, K. H., and Song, K. Y., 1998, Geological report of the Busan sheet (scale: 1:250,000), Korea Institute of Geoscience and Mineral Resources.
10 Kipfer, R., Aeschbah-Herting, W., Peeters, F., and Stute, M. 2002, Noble gases in the continental crust, Rev, Mineral, Geochem, 47, 615-700.   DOI
11 Paces, T., 1972, Steady-state kinetics and equilibrium between ground water and grnitic rock, Geochimica Cosmochimica Acta, 37, 2641-2663.
12 Piper, A. M., 1994, A Graphic procedure in the geochemical interpretation of Water-analyses, Transactions, American Geophysical Union, 25, 914-928.
13 Velbel, M. A., 1992, Geochemical mass balaces and weathering rates in forested watersheds of the sothern Blue Ridge, III, Cation budgets and the weathering rate of amphibole, Am. J. Sci., 292, 58-78.   DOI
14 Tardy, Y., 1971, Characterization of the principle weathering types by the geochemistry of waters from some European and African crystalline massifs, Chemical Geology, 7, 253- 271.   DOI
15 Velbel, M. A., 1985, Geochemical mass balaces and weathering rates in forested watersheds of the sothern Blue Ridge, Am. J. Sci., 285, 904-930.   DOI
16 Velbel, M. A., 1989, Weathering of hornblende to ferruginous products by a dissolution-reprecipitation mechanism: Petrography and Stochiometry, Clays Clay Mineral., 37, 515-524.   DOI