This document contains old chemical analyses of samples from the Elk Creek carbonatite deposit (ECC) taken directly from the files of Molycorp, Inc. in Mountain Pass California, and comes from the University of Nebraska at Lincoln, Institute of Agriculture and Natural Resources, School of Natural Resources. The analyses were performed at Skyline Labs, Inc. of Wheat Ridge, Colorado in the early to middle 1980s using unspecified methods. These data have not undergone any additional processing or assessment of any kind, and therefore the Conservation and Survey Division, School of Natural Resources, University of Nebraska-Lincoln assumes no responsibility with respect to their accuracy or application.
Later, the U.S. Geological Survey published a geophysical report on the area: https://pubs.er.usgs.gov/publication/70124942
A Master's thesis by Michael J. Blessington was released in 2014 and also focused on the area: https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1063&context=geoscidiss
Benjamin J. Drenth also published on some geophysical aspects of the deposit in 2014: https://www.i2mconsultants.com/downloads/corp/Geophysical_expression_of_a_buried_niobi.pdf