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Estimating Flow and Recharge Rates of Groundwater in Western Taiwan Using Radiocarbon and Tritium

Published online by Cambridge University Press:  18 July 2016

Tsung-Kwei Liu*
Affiliation:
Department of Geology, National Taiwan University, 245 Choushan Road, Taipei 10770 Taiwan Republic of China
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Abstract

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The Choushuichi alluvial-fan delta is the largest groundwater system in Taiwan. The coastal area of this fan delta has recently suffered severe land subsidence and sea-water intrusion due to overpumping of groundwater. To study the hydrogeological character of proper water-resource management, an intensive program of geological and water monitoring through well drilling and sampling has been undertaken. At present, radiocarbon dating and/or tritium analysis for samples from >70 boreholes has been completed. The clearly defined position of “bomb-tritium front” allows the groundwater flow and recharge rates of the confined aquifer to be calculated with confidence at <10 m yr−1 and 9.0 × 108 m3 yr−1, respectively. The flow velocities of the confined aquifer have also accelerated remarkably due to much pumping during the last decades.

Type
IV. 14C as a Tracer of the Dynamic Carbon Cycle in the Current Environment
Copyright
Copyright © the Department of Geosciences, The University of Arizona 

References

Allison, G. B. and Hughes, M. W. 1975 The use of environmental tritium to estimate recharge to a South-Australian aquifer. Journal of Hydrology 26: 245254.Google Scholar
Broecker, W. and Peng, T.-H. 1982 Tracers in the Sea. Palisades, New York, Eldigio Press: 690 p.Google Scholar
Brown, R. M. 1961 Hydrology of tritium in the Ottawa Valley. Geochimica et Cosmochimica Acta 21: 199204.Google Scholar
Cheng, S. 1992 Reaction-path formulation of a simple dissolution model for radiocarbon dating groundwater. In Long, A. and Kra, R. S., eds., Proceedings of the 14th International 14C Conference. Radiocarbon 34 (3): 646653.Google Scholar
Daniels, D. P., Fritz, S. J. and Leap, D. I. 1991 Estimating recharge rates through unsaturated glacial till by tritium tracing. Ground Water 29(1): 2634.Google Scholar
Deines, P., Langmuir, D. and Harmon, R. S. 1974 Stable carbon isotope ratios and the existence of a gas phase in the evolution of carbonate ground water. Geochimica et Cosmochimica Acta 38: 11471164.Google Scholar
Domenico, P. A. and Schwartz, F. W. 1990 Physical and Chemical Hydrogeology. New York, John Wiley & Sons: 824 p.Google Scholar
Egboka, B. C. E., Cherry, J. A., Farvolden, R. N. and Frind, E. O. 1983 Migration of contaminants in groundwater at a landfill, a case study: Tritium as an indicator of dispersion and recharge. Journal of Hydrology 63: 5180.Google Scholar
Fontes, J. Ch. and Gamier, J. M. 1979 Determination of the initial 14C activity of the total dissolved carbon: A review of the existing models and a new approach. Water Resources Research 15: 399413.Google Scholar
Geyh, M. A. and Wagner, R. H. (ms.) 1979 Guideline for groundwater sampling for isotope analyses. Unpublished laboratory notes, 14C and 3H-Laboratory, Niedersachsische Landesamt für Bodenforschung, Hannover, Germany.Google Scholar
Ground Water Investigation Team (GWIT) 1957 Ground water investigation in Tachoushui alluvial plain report. Taichung, Taiwan: 156 p.Google Scholar
Hackley, K. C., Liu, C. L. and Coleman, D. D. 1992 14C dating of groundwater containing microbial CH4 . In Long, A. and Kra, R. S., eds., Proceedings of the 14th International 14C Conference. Radiocarbon 34(3): 686695.Google Scholar
Huang, J. S. 1992 A perspective of ground-water management considering sustainable usage of water resources in Taiwan. In Proceedings of the Conference on the Investigation, Analysis and Management of Groundwater. 117 (in Chinese).Google Scholar
Ingerson, E. and Pearson, F. J. Jr. 1964 Estimation of age and rate of motion of ground-water by the 14C method. In Miyake, Y. and Koyama, T., eds., Recent Research in the Field of Hydrosphere, Atmosphere, and Nuclear Geochemistry. Tokyo, Maruzen: 263283.Google Scholar
Kaufman, S. and Libby, W. F. 1954 The natural distribution of tritium. Physical Review 93: 13371344.Google Scholar
Lee, B. D. and Lin, M. H. (ms.) 1992 Groundwater salinization in the land-subsidence areas of south-western Taiwan. Paper presented at Conference on Groundwater Surveying, Analysis, and Management. Taipei, Taiwan, 17–18 October: 557568.Google Scholar
Mook, W. G. 1976 The dissolution-exchange model for dating groundwater with 14C. In Interpretation of Environmental Isotope and Hydrochemical Data in Groundwater Hydrology. Vienna, IAEA: 213225.Google Scholar
Mook, W. G. 1980 Carbon-14 in hydrogeological studies. In Fritz, P. and Fontes, J.-Ch., eds., Handbook of Environmental Isotope Geochemistry. New York, Elsevier Science Publishers: 4974.Google Scholar
Parkhurst, D. L., Thorstenson, D. C. and Plummer, L. N. 1980 PHREEQE—A Computer Program for Geochemical Calculations. Water Resources Investigations 80–96. Reston, Virginia, U.S. Geological Survey: 210 p.Google Scholar
Pearson, F. J. Jr. 1965 Use of 13C/12C ratios to correct radiocarbon ages of materials initially diluted by limestone. In Chatters, R. M. and Olson, E. A., eds., Proceedings of the 6th International Conference on Radiocarbon and Tritium Dating. Clearinghouse for Federal Scientific and Technical Information, Washington, DC: 357366.Google Scholar
Plummer, L. N., Busby, J. F., Lee, R. W. and Hanshaw, B. B. 1990 Geochemical modeling of the Madison aquifer in parts of Montana, Wyoming and South Dakota. Water Resources Research 26: 19812014.Google Scholar
Reardon, E. J. and Fritz, P. 1978 Computer modeling of groundwater 13C and 14C isotope compositions. Journal of Hydrology 36: 201224.Google Scholar
Robertson, W. D. and Cherry, J. A. 1989 Tritium as an indicator of recharge and dispersion in a groundwater system in central Ontario. Water Resources Research 25(6): 10971109.Google Scholar
Stuiver, M. and Polach, H. A. 1977 Discussion: Reporting of 14C data. Radiocarbon 19(3): 355363.Google Scholar
Taiwan Water Conservancy Bureau (TWCB) 1974 Preliminary report for the research on land subsidence problems in the Tulin-Chiai area. Taiwan Water Conservancy Reports 26(1): 4766.Google Scholar
Tamers, M. A. 1967 Radiocarbon ages of groundwater in an arid zone unconfined aquifers. In Stout, G. E., ed., Isotope Techniques in the Hydrologic Cycle. AGU Monograph Series 11. Washington, DC, American Geophysical Union: 143152.Google Scholar
Tamers, M. A. 1975 Validity of radiocarbon dates on groundwater. Geophysical Surveys 2: 217239.Google Scholar
Wang, C. S. and Chen, C. S. 1959 Geological investigation on the groundwater resources in and around Tachoshuichi fan between Changhua and Yunglin districts. Acta Geologica Taiwanica 7: 3542.Google Scholar
Wigley, T. M. L., Plummer, L. N. and Pearson, F. J. Jr., 1978 Mass transfer and carbon isotope evolution in natural water systems. Geochimica et Cosmochimica Acta 42: 11171139.Google Scholar