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Instead, attention has focused on the application of Probably the most exciting development in this setting has been the adaptation of solid source mass spectrometric methods originally developed for "hard rock" geochemistry to the investigation of heavy isotope ratios in deep ground water.

Hydrology clearly falls into this category; indeed, one common criticism of hydrological research is that the direction of research is driven too much by perceived applications. Does "pure" or "curiosity-driven" research really contribute to the national welfare or is it largely a sideshow to research whose results are immediately applicable to societal problems?

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