Geophysical expression of a buried niobium and rare earth element deposit: The Elk Creek carbonatite, Nebraska, USA

Drenth, Benjamin J.. (2014). Geophysical expression of a buried niobium and rare earth element deposit: The Elk Creek carbonatite, Nebraska, USA. Interpretation, 2(4), SJ23–SJ33. doi:10.1190/int-2014-0002.1

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