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dc.contributor.authorMcLemore, V.T.
dc.date.accessioned2018-09-29T00:31:19Z
dc.date.available2018-09-29T00:31:19Z
dc.date.issued2014-03-27
dc.identifier.citationMcLemore, V.T., Rare Earth Elements Deposits in New Mexico, 2014, in Conway, F.M., ed., Proceedings of the 48th Annual Forum on the Geology of Industrial Minerals, Phoenix, Arizona, April 30 - May 4, 2012. Arizona Geological Survey Special Paper #9, Chapter 3, p. 1-16.
dc.identifier.urihttp://hdl.handle.net/10150/629441
dc.descriptionDeposits of rare earth elements (REE) are found in New Mexico, but they have not been important exploration targets in past years because demand has been met elsewhere. However, with the projected increase in demand and potential lack of available REE production from China, the New Mexico deposits are being re-examined for their potential. REE-Th-U veins are found in the Gallinas, Caballo, Capitan, and Cornudas Mountains and Laughlin Peak-Chico Hills. A small amount of bastnaesite, a REE mineral, was recovered during processing for fluorite from the Gallinas Mountains. Four types of deposits are found in the Gallinas Mountains: epithermal REE-F veins, Cu-REE-F veins, REE-F breccia pipes and iron skarn deposits; all are associated with Tertiary alkaline to alkalic-calcic igneous rocks. Resources amount to at least 537,000 short tons of 2.95% total REE (not NI-43-101 compliant; Schreiner, 1999). The abundant rare mineralogy in the Cornudas Mountains suggests that the area has potential for undiscovered deposits of REE, niobium, and zirconium. U.S. Borax sampled and drilled in the Chess Draw area (up to 0.06% total rare-earth oxides, 10-1400 ppm Nb, 10-3000 ppm Zr, 230-13,000 ppm F). Other types of REE deposits are found in New Mexico. Carbonatites are found in the Lemitar and Chupadera Mountains, Laughlin Peak-Chico Hills, Lobo Hill, and Monte Largo (Sandia Mountains). Disseminated Y-Zr deposits in syenite are found at Pajarito Mountain, Mescalero Apache Indian Reservation near Ruidoso. In 1990, Molycorp, Inc. reported historic resources of 2.7 million short tons grading 0.18% Y2O3 and 1.2% ZrO2 as disseminated eudialyte. Two additional deposit types have potential for REE in New Mexico: Cretaceous heavy mineral, beach-placer sandstone deposits and pegmatites. Exploration is ongoing in the Lemitar, Gallinas, and Cornudas Mountains. Many challenges face the mining industry in supplying REE. Most REE deposits are associated with radioactive waste material, which will require special handling. Future development of REE-based green technologies will be challenging and demand more research in many fields.
dc.language.isoen
dc.relation.ispartofseriesArizona Geological Survey Special Paper #9-Proceedings of the 48th Annual Forum on the Geology of Industrial Minerals - Chap. 3
dc.relation.urlhttp://repository.azgs.az.gov/uri_gin/azgs/dlio/1568
dc.rightsArizona Geological Survey. All rights reserved.
dc.subjectArizona Geological Survey Special Paper 9
dc.subjectPajarito Mountains
dc.subjectMonte Largo
dc.subjectSandia Mountains
dc.subjectChupadera Mountains
dc.subjectLemitar Mountains
dc.subjectChico Hills
dc.subjectLaughlin Peak
dc.subjectCornudas Mountains
dc.subjectCapitan Mountains
dc.subjectCaballo Mountains
dc.subjectGallinas Mountains
dc.subjectepisyenite
dc.subjectplacer
dc.subjectpegmatite
dc.subjectcarbonatites
dc.subjectalkaline igneous rocks
dc.subjectrare earth element
dc.subjectREE
dc.subjectOrdovician
dc.subjectLaramide
dc.subjectcretaceous
dc.subjectPermian
dc.subjectPennsylvanian
dc.subjectCambrian
dc.subjectTertiary
dc.subjectMiocene
dc.subjectPaleozoic
dc.subjectProterozoic
dc.titleRare Earth Elements Deposits in New Mexico (Chapter 3, Special Paper #9)
csdgm.bounding.west-109.116
csdgm.bounding.east-103.052
csdgm.bounding.north37.0121
csdgm.bounding.south31.27
dc.description.collectioninformationDocuments in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.
refterms.dateFOA2018-09-29T00:31:19Z


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