TY  - RPRT
TI  - Geophysical expression of a buried niobium and rare earth element deposit: the Elk Creek carbonatite, Nebraska, USA
AU  - Benjamin J. Drenth
PY  - 2014
DO  - 10.1190/int-2014-0002.1
UR  - https://pubs.usgs.gov/publication/70124942
ID  - 70124942
ER  -