Tritium 3he dating of shallow groundwater

Tritium can be used in a straightforward way for groundwater. Tritium PHe-dating of shallow groundwater PDF Download Available In systems younger than the mid-1960s, the bomb peak will not be present due to radioactive decay. Groundwater Dating and One liter of water with a concentration of 1 TU produces 7.2 disintegrations per minute(dpm) or 0.12 becquerel (Bq); one Bq corresponds to 1 disintegration per second (dps);one curie (Ci) is equal to 3.7x10 Bq.] Additional He sources, terrigenic He, may be present in aquifers where the rocks are enriched in U or Th, or in ground-water samples in which young water has mixed with relatively old water containing terrigenic He.The groundwater flow depth required to increase the water temperature from the recharge. Groundwater Dating and Residence-time Measurements. the effects of groundwater mixing when using 14C ages is to use age constraints from the concen-tration of CFCs or tritium in tandem with.

Dating of streamwater using tritium in a post nuclear bomb pulse Tritium input to ground water has occurred in a series of spikes following periods of atmospheric testing of nuclear devices that began in 1952 and reached a maximum in 1963-1964.

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