https://catalog.data.gov/dataset/dissolved-noble-gas-data-and-helium-mass-balance-models-for-the-colorado-and-virgin-rivers
Department of the Interior - Dissolved noble gas data and helium mass balance models for the...
Dissolved noble gas data were collected using a portable mass spectrometer mounted on inflatable rafts on the Colorado River near Glenwood Springs, Colorado...
mass balance modelsof thenoble gasdepartmentinterior