Noble, Ryan R.P. Traditional and novel geochemical extractions applied to a Cu-Zn soil anomaly: a quantitative comparison of exploration accuracy and precision - London Association of Applied Geochemists & The Geological Society mayo 2009 - pp. 159-172 ilus. Subjects--Topical Terms: COBREEXPLORACION MINERAEXTRACCION SELECTIVAGEOQUÍMICAPROSPECCIÓN GEOQUÍMICAZINC