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Radioactive Occurrences in Veins and Igneous and Metamorphic Rocks of New Mexico

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Radioactive Occurrences in Veins and Igneous and Metamorphic Rocks of New Mexico New Mexico Bureau of Mines & Mineral Resources Socorro, New Mexico 87801 OPEN FILE REPORT ,55 This report is Preliminary and has not been edited or reviewed for conformity to New Mexico Bureau of Mines standards. RadioactiveOccurrences in Veins andIgneous and Metamorphic Rocks of New Mexico with. Annotated Bibl2ography by Virginia T. McLemore New Mexico Bureau of Minesand MineralResources Open-FileReport 155 Partial Financial Support by U.S. Department of Energy Grand Junction Area Office Subcontract No. 81-540-E ABSTRACT From an extensive literature search and field examination of 96 nonsandstone radioactive occurrences, the author compiled an annotated bibliography of over600 citations and a list of 327 radioactive occurrences in veins and igneous and metamorphic rocks of New Mexico. The citations are indexed by individual radioactive occurrence, geographic area, county, fluorspar deposits and occurrences, geochemical analyses, and geologic maps. In addition, the geology, mineralization, and uranium and thorium potential of41 geographic areas in New Mexico containing known radioactive occurrences in veins and igneous and metamorphic rocks or that contain host rocks considered favorable for uranium or thorium mineralization are summarized. A list of aerial- radiometric, magnetic, hydrogeochemical, and stream-sediment survey reports is included. i PREFACE The purpose of this reportis to summarize the radioactive occurrences found in veins and igneous and metamorphic rocks of New Mexico (appendixI) and to list geologic reports describing favorable geologic environments in New Mexico for these types of nonsandstone, uranium deposits. A radioactive occurrence, for the purpose of this report, is defined as being twice the back- ground radioactivity or as containing O.OOl%U380 or Tho2. The term nonsandstone uranium deposit refersto uranium deposits in veins and igneous and metamorphic rocks. References describing in some detail the uranium potential, geology; petrology, chemistry, or mineralogy are listed in the annotated bibliography. Reports describing uranium and thorium analyses, occurrences, and deposits are included. Only plutonic, volcanic, metamorphic (including Precambrian quartz-pebble conglomerates), and vein radioactive deposits are considered in this report; sedimentary uranium deposits (such as sandstone, shale, limestone, phosphorite, coal, evaporative precipitates, and fossil placer deposits) will be considered at a later time. It must be stressed that the geographic areas discussed may contain favorable host rocks for uranium deposits in veins and igneous and metamorphic rocks; however, further evaluation may show that economic uranium deposits may not exist in these areas. Results of an ongoing project to compile and verify all types of radioactive occurrences in New Mexico are included where appro- priate. Field investigations of some radioactive occurrences in veins and igneous and metamorphic rocks which have been made as part of this ongoing project are included in this report. Chemical analyses provided by Lynn Brandvold and assistants of the Chemistry ii Laboratory at New Mexico Bureauof Mines and Mineral Resources are included in appendixI. Production data from uranium deposits in veins and igneous and metamorphic rocks of New Mexico provided by the U.S. Department of Energy(1948 to 1970, government contracts only) are included as table4. The annotated bibliography also includes new citationsnot included in previous bibliographies published by the New Mexico Bureau of Mines and Mineral Resources. This report includes an introduction, summary of areas favorable for radioactive deposits in veins and igneous and metamorphic rocks, an annotated bibliography, a subject index, and five appendices. Each report is indexed at least by county and geographic area. Appendix I includes a table of radioactive occurrences and depositsin veins and igneous and metamorphic rocks of New Mexico. Two maps are included locating the various radio- active occurrences listed in appendixI (pl. I and 11). Appendices 11, 111, and IV list citations of reports and maps of aerial- radiometric and magnetic surveys, reports containing uranium and thorium analyses of water and stream-sediment samples, and biblio- graphies and mapping indexes. The annotated bibliography includes published and unpublished reports .pertaining to the geology, geochemistry, mineralogy, petrology, and mineralization of favorable geologic environments or geographic areas which are known to contain nonsandstone radio- active occurrences or deposits. Most of the references can be obtained from the New Mexico Bureau of Mines and Mineral Resources (Socorro) or the libraries at New Mexico Instituteof Mining and Technology (Socorro) and the University of New Mexico (Albuquerque). The purpose of this reportis to encourage exploration for uranium and thorium deposits in veins and igneous and metamorphic iii rocks of New Mexicoby providing 1) a list of radioactive occurrences in veins and igneous and metamorphic rocks of New Mexico (appendix I), 2) a list of references concerning the geology of areas where radioactive occurrences in veins and igneous and metamorphic rocks are found (annotated bibliography), and3) a list of geographic areas where radioactive occurrences are found or may be favorable for containing uranium and thorium deposits in veins and igneous and metamorphic rocks. ACKNOWLEDGEMENTS--Work on this project began under the supervision of Dr. ChristopherA. Rautman in September, 1977 as a student project. Dr. Rautman initially proposed this study and offered many suggestions and criticisms throughout the entire project. Dr. Frank E. Kottlowski, director of the New Mexico Bureauof Mines, continued to fund and support this work after Dr. Rautman left the Bureau. I am indebted to both of these gentlemen for their support and encouragement. Additional funding was provided by U.S.the Department of Energy (W.L. Chenoweth, administrator) in September, 1981 to complete the preparation of an open-file report. I would also like to acknowledge the Interlibrary Loans Department at New Mexico Tech for obtaining many reports not available in Socorro. William Graham and William Chenowethof the Department of Energy at Grand Junction (Colorado) provided open-file reports from U.S.the Atomic Energy Commission (AEC),U.S. Energy Research and Develop- ment Administration (ERDA), and the U.S. Department of Energy (DOE). These are on file at New Mexico Bureau of Mines and Mineral Resources. William Thomann (University of Texas El at Paso), Joe Kolessar (Phelps Dodge, Tyrone, New Mexico), Dr. Kent Condie (New Mexico Tech), Robert Eveleth (New Mexico Bureau of Mines and Mineral iv Resources), Dr. Richard Chamberlin (New Mexico Bureau of Mines and Mineral Resources), Robert North (New Mexico Bureau of Mines and Mineral Resources) and my husband, James McLemore, accompanied me in the field over the four-year period to examine several radioactive occurrences and the geology of many of the areas discussed. Dr. Kottlowski, Dr. Rautman, Dr. R.M. Chamberlin, Sam Thompson (New Mexico Bureau of Mines and Mineral Resources),R.H. Dr. Weber (New Mexico Bureau of Mines and Mineral Resources),J.M. Dr. Robertson ' (New Mexico Bureau of Mines and Mineral Resources), Dr. C. Chapin (New Mexico Bureau of Mines and Mineral Resources), and William Chenoweth (U.S. Department of Energy) offered suggestions and criticisms of various partsof the manuscript. Lois Devlin, Jeanette Chavez, Sue Ness, Lynne McNeil, and Betsy Wilson typed various portions of this manuscript. Robert Kelley and Jane Calvert assisted in editing and planning of the final open-file report. Kathy Eden and Jane Calvert typed the manuscript onto the DEC-20 computer system at New Mexico Tech. V TABLE OF CONTENTS page PREFACE i INTRODUCTION Purpose and methods of investigation 1 Classification of uranium deposits 6 Uranium deposits in veins and igneous and metamorphic rocks of New Mexico 6 References cited 15 FAVORABLE AREAS IN NEW MEXICO Raton-Clayton Volcanic Field, Colfax, Union Counties 18 Chico Hills area, Colfax County 19 Sangre de Cristo Mountains, Colfax, Taos, Rio Arriba, Santa Fe, San Miguel, Mora Counties 21 Tusas Mountains (San Juan Mountains), Rio Arriba County 31 Nacimiento and San Pedro Mountains, Sandoval, Rio Arriba Counties 34 Jemez Mountains, Rio Arriba, Sandoval, Los Alamos Counties36 San Juan Basin volcanic necks and plugs, San Juan, McKinley Counties 37 Mt. Taylor, Cibola, McKinley Counties 38 Zuni Mountains, Cibola County 39 Ortiz Mountains, Sandoval, SantaFe Counties 41 Sandia Mountains and Monte Largo Hills, Bernalillo, Sandoval Counties 44 Manzano and Manzanita Mountains, Bernalillo, Valencia, Torrance Counties 45 Pedernal Hills, Torrance County 46 Los Pinos Mountains, Torrance, Valencia, Socorro Counties47 Ladron Mountains, Socorro County 49 Lemitar Mountains, Socorro County 51 La Joyita Hills, Socorro County 52 Oscura Mountains, Socorro, Lincoln Counties 52 San Andres Mountains, Socorro, Sierra,Doiia Ana Counties 54 Lincoln County Porphyry Belt, Lincoln County 55 Sacramento Mountains, Otero County 60 Pajarito Mountain, Otero County 60 Jarilla Mountains, Otero County 61 Cornudas Mountains, Otero County 62 FraCristobal Hountains, Sierra County 62 Caballo Mountains, Sierra County 63 Mogollon-Datil Volcanic Province, southwest New Mexico 64 Magdalena Mountains, Socorro County 69 San Mateo Mountains 72 Sierra Cuchillo, Sierra County 73 Black and Cooke's Ranges, Catron, Grant, Sierra, Luna Counties 75 Burro Mountains,
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