Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Liang-Feng Han"'
Autor:
Leonard I. Wassenaar, Liang-Feng Han
Publikováno v:
Isotopes in Environmental and Health Studies. 57:111-141
Radiocarbon (14C) is useful for estimating groundwater ages for transport and water resource exploitation assessment. If the 14C content of dissolved inorganic carbon (14CDIC) is known, the age of groundwater can be estimated by applying a radiocarbo
Autor:
Liang-Feng, Han, Leonard I, Wassenaar
Publikováno v:
Isotopes in environmental and health studies. 57(2)
Radiocarbon (
Autor:
Pradeep K. Aggarwal, Leonard I. Wassenaar, Luis Araguas-Araguas, Thomas Schiefer, Liang-Feng Han, Gustav Kainz
Publikováno v:
Isotopes in Environmental and Health Studies. 54:274-287
Tritium (3H) is an essential tracer of the Earth's water cycle; yet widespread adoption of tritium in hydrologic studies remains a challenge because of analytical barriers to quantification and det...
Publikováno v:
GEOCHEMICAL JOURNAL. 51:423-437
Autor:
Liang-Feng Han, Pradeep K. Aggarwal, Tamara Hunjak, Takuya Matsumoto, Zvjezdana Roller-Lutz, Hans Otto Lutz
Publikováno v:
GEOCHEMICAL JOURNAL. 51:391-407
Due to their extreme anisotropy and heterogeneity, the hydrogeological characterization of karst terrains is notoriously difficult. Approximately 50% of Croatia consist of karst aquifers, in particular the touristically important region along the Adr
Autor:
Leonard I, Wassenaar, Liang-Feng, Han, Thomas, Schiefer, Gustav, Kainz, Luis, Araguas-Araguas, Pradeep K, Aggarwal
Publikováno v:
Isotopes in environmental and health studies. 54(3)
Tritium (
Publikováno v:
Chemical Geology. 387:111-125
Determination of the 14C content of dissolved inorganic carbon (DIC) is useful for dating of groundwater. However, in addition to radioactive decay, the 14C content in DIC (14CDIC) can be affected by many geochemical and physical processes and numero
Publikováno v:
Isotopes in environmental and health studies. 53(3)
Soil samples containing water with known stable isotopic compositions were prepared. The soil water was recovered by using vacuum/heat distillation. The experiments were held under different conditions to control rates of water evaporation and water
Publikováno v:
Chemical Geology. :88-112
A graphical method is described for identifying geochemical reactions needed in the interpretation of radiocarbon age in groundwater systems. Graphs are constructed by plotting the measured 14C, δ13C, and concentration of dissolved inorganic carbon
Publikováno v:
Isotopes in Environmental and Health Studies. 43:31-50
The groundwater system in the mountainous area of Semmering, Austria, was studied by environmental tracers in several karst springs. The tracers used included stable isotopes ((18)O, (2)H), tritium ((3)H) and chlorofluorocarbons (CFCs). The tracers p