Late Mesozoic to Cenozoic Cooling Histories of the Flanks of the Northern and Central Rio Grande Rift, Colorado and New Mexico
New Mexico Bureau of Mines & Mineral Resources A DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Late Mesozoic to Cenozoic cooling histories of the flanks of the northern and central Rio Grande rift, Colorado and New Mexico Shari A. Kelley1, Charles E. Chapin2, and Jeff Corrigan3 1Department of Geological Sciences, Southern Methodist University, Dallas, Texas 75275; 2New Mexico Bureau of Mines & Mineral Resources, Socorro, New Mexico 87801; 3ARCO Oil and Gas Company, Plano, Texas 75075 SOCORRO 1992 11 NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Laurence H. Lattman, President NEW MEXICO BUREAU OF MINES & MINERAL RESOURCES Charles E. Chapin, Director and State Geologist BOARD OF REGENTS Ex Officio Bruce King, Governor of New Mexico Alan Morgan, Superintendent of Public Instruction Appointed Lt. Gen. Leo Marquez, President, 1989-1995, Albuquerque Charles Zimmerly, Secretary/Treasurer, 1991-1997, Socorro Diane D. Denish, 1992-1997, Albuquerque J. Michael Kelly, 1992-1997, Roswell Steve Torres, 1991-1997, Albuquerque BUREAU STAFF ORIN J. ANDERSON, Senior Geologist DEBBIE GOERING, Staff Secretary VIRGINIA McLesion, Economic Geologist RUBEN ARCHULETA, Metallurgical Lab. Tech. Lois GOLLMER, Geotechnical Records Clerk NORMA J. MEEKS, Director of Publications Office Augustus K. ARMSTRONG, USGS Geologist IBRAHIM GUNDILER, Senior Metallurgist BARBARA R. Popp, Chemical lab. Tech. II GEORGE S. AusTIN, Senior Industrial Minerals Geologist STEVE HAASE, Ground-Water Geologist MARSHALL A. REITER, Senior Geophysicist AL BACA, Maintenance Carpenter II WILLIAM C. HANEBERG, Engineering Geologist JACQUES R. RENAULT, Senior Geologist JAMES M. BARKER, Senior Industrial Minerals Geologist JOHN W. HAWLEY, Senior Env. Geologist JAMES M. ROBERTSON, Senior Economic Geologist PAUL W. BAUER, Field Economic Geologist LYNNE HEMENWAY, Computer Pub./Graphics Spec.
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