Radium geochemistry in Na-Cl type groundwater in Niigata Prefecture, Japan.


Radium isotopes in 23 Na-Cl type groundwater sampled mainly from deep wells in Niigata Prefecture, which is the site of the largest oil- and gas-fields in Japan, were measured along with U isotopes, chemical components and hydrogen and oxygen isotope ratios to elucidate the distribution and behavior of Ra in a brackish environment underground. Also analyzed… (More)
DOI: 10.1016/j.jenvrad.2009.10.009


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