Geological & Mineral Resources

Elk Creek Carbonatite Maps

These maps were produced by Molycorp, Inc. in the mid-1980s. These maps summarize data about total lanthanide oxide (LnO Anomalies), phosphate (P₂O₅ Anomalies) and niobium oxide (Nb₂O₅ Anomalies) concentrations in the Elk Creek carbonatite.

On the basis of data at the disposal of the Conservation and Survey Division, School of Natural resources, lanthanide oxides ("LnO" in the map legends) include the oxides of cerium (Ce), lanthanum (Ln), and neodymium (Nd).

The maps included herein represent analytical data from drill holes (identified by the abbreviations "EC" and "CA", followed by a number). The original data are incorporated in a separate document.

These maps have been scanned from the original paper copies, but they 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.

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Elk Creek Carbonatite Analysis

This document contains chemical analyses of samples from the Elk Creek carbonatite deposit ECC) taken directly from the files of Molycorp, Inc. in Mountain Pass California. The analyses ere performed at Skyline Labs, Inc. of Wheat Ridge, Colorado in the early to middle 1980s sing 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.

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