New Mexico Geological Society · Socorro, NM

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NEW MEXICO GEOLOGICAL SOCIETY · SPRING MEETING

Spring Meeting Abstracts

Explore research presented at the NMGS Annual Spring Meeting. Browse abstracts from 1983 onward, choose a meeting year, or open an abstract to read the full text.

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1983

Landforms of Mcmurdo Volcanic Group Southern Foothills of Royal Society Range, Antarctica

Anne C. Wright Department of Geoscience, New Mexico Institute of Mining and Technology, Socorro, NM, 87801 During late Tertiary and Quaternary times the Southern Foothills of Royal Society Range, Southern Victoria Land, have been glaciated

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AN OUTLINE OF VEIN-TYPE TUNGSTEN DEPOSITS IN SE CHINA

Wupao Ting Department of Geology, University of Zhejiang, China It is well known that the Circum-Pacific belt contains major metallogenic tungsten provinces in the world. There are many similarities among them as they are most

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Fossil mammals and Eocene-Oligocene boundary in New Mexico

Spencer G. Lucas Department of Geology, University of New Mexico, Albuquerque, NM, 87131 In New Mexico (NM) no fossil mammals of Oligocene age are known, but there are three areas in which Duchesnean (late Eocene)

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Preliminary basin analysis of the Pictured Cliffs to Ojo Alamo sequence in the western and southern San Juan Basin, New Mexico

Adrian P. Hunt New Mexico Bureau of Mines and Mineral Resources, Socorro, NM, 87801 Coastal environments of the Pictured Cliffs Sea were from northwest to southeast, deltaic, barrier shoreline, and tidal flat. The major source

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Tin mineralization in Taylor Creek Rhyolite, Black Range, New Mexico

Ted L. Eggleston1 and David I. Norman1 1Department of Geoscience, New Mexico Institute of Mining and Technology, Socorro, NM, 87801 Two periods of alteration and possible mineralization have been defined in the north-central Black Range

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Status report on epithermal gold-silver exploration

Paul I. Eimon Pioneer Nuclear, Inc., Amarillo, TX, Texas, 79189 Current economic conditions have made epithetmal or “bonanza” Au-Ag deposits attractive exploration targets. The emphasis on exploration for such deposits has given impetus to: (1)

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Proterozoic pillow basalts and pillow breccias from the Pecos greenstone belt, Sangre de Cristo Mountains, north-central New Mexico

Ingrid Klich1 and James M. Robertson1 1New Mexico Bureau of Mines and Mineral Resources, Socorro, NM, 87801 Metabasalts (now amphibolites) with well-preserved pillow structures occur within an extensive early Proterozoic (1.68-1.72 b.y.) compositionally bimodal volcanic

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Geology of the copper occurrence at Copper Hill, Picuris Mountains, New Mexico

Michael L. Williams Department of Geology, University of New Mexico, Albuquerque, NM, 87131 Copper Hill, in the Picurus Mountains of northern New Mexico, is the expression of a west-plunging anticline of Ortega Quartzite. The Ortega

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Gravity and magnetic studies in the Rio Grande rift north of Albuquerque, New Mexico

Kenneth D. Mahrer1 and T. B. Reynolds1 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 This abstract reports work in progress involving gravity and magnetics measurements in the eastern portion of the Rio

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Geochemical study of Estancia Valley playas, New Mexico

Herbert A., Vogler1 and Douglas G. Brookins1 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 We report on the geochemistry of playas from the Estancia Valley, New Mexico, as part of a generic

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Clay mineralogy and geochemistry of Upper Cretaceous strata, southeastern San Juan Basin, New Mexico

Stanley T. Krukowski Department of Geosciences, New Mexico Institute of Mining and Technology, Socorro, NM, 87801 THe Upper Cretaceous rocks of the southeastern San Juan Basin, New Mexico resulted from a series of transgressions and

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Comments on the economic volcanology between Redrock, New Mexico, and Clifton, Arizona

David E., Jr. Wahl P.O. Box 27285, Tempe, AZ, 85282 The 3000 km2, NW-trending area from Redrock, NM, to Clifton, AZ, is composed chiefly of mid-Tertiary volcanic rocks-which fill the wedge-shaped Blue Creek basin between

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Geochronologic study of evaporites, southeastern New Mexico

Douglas G. Brookins Department of Geology, University of New Mexico, Albuquerque, NM, 87131 Evaporite minerals from southeastern New Nexico have not been prevlously extensively studied by geochronologic methods. The writer (Brookins, 1981) has summarized the

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Stratigraphy and paleoenvironments of an Upper Cretaceous marine to fluvial facies transition, Sierra County, New Mexico

E. Timothy Wallin Department of Geology, New Mexico Institute of Mining and Technology, Socorro, NM, 87801 The Engle coal field of south-central New Mexico contains approximately 3,000 feet of interbedded Upper Cretaceous pebble conglomerates, sandstones,

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Geochronologic studies of granites and metamorphic rocks, Sandia Mountains, New Mexico

Douglas G. Brookins1 and Arun Majumdar1 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 Several geochronologic studies have been carried out on Precambrian rocks from the Sandia Hountains. Early studies, summarized by Brookins

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A middle Pleistocene mammoth from southeastern New Mexico

Thomas R. Logan1 and S. G. Lucas1 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 UNM (university of New Mexico) -P-1 is a right ramus bearing M3 of Mammuthus imperator. This specimen was

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Geochronologic studies of igneous rocks from the Florida Mountains, New Mexico (abs.)

R. K. Matheny1 and D. G. Brookins1 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 The igneous rocks of the Florida Mountains, near Deming, NM, consist of a core complex of syenites, alkali

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Tectonic map of Texas–A progress report

T. E. Ewing1, C. D. Henry1, M. P. A. Jackson1, C. M. Woodruff1, A. G. Goldstien1 and J. R. Garrison1 1Bureau of Economic Geology, The University of Texas, Austin, TX, 78712 The Bureau of Economic

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Geology and joint pattern study of Turkey Mountains, Mora County, New Mexico

Thomas L. Boyd1 and J. A. Campbell1 1Department of Geosciences, West Texas State University, Canyon, TX, 79016 The Turkey Mountains, a northeasterly-trending breached anticline, are in the southern Raton Basin, northeastern New Mexico. Strata exposed

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Local geomagnetic anomalies in alluvial fans of Sandia Mountains, New Mexico

Chris R. Bradley1 and K. D. Mahrer1 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 A land-based geomagnetic survey was conducted over an alluvial fan complex at the northwestern end of the Sandia

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Silver-nickel-cobalt-uranium mineralization and associated alteration in the Black Hawk district, Grant County, New Mexico

Kathleen E. Johnson 901 Amherst Drive, NE, Albuquerque, NM, 87106 The Black Hawk district of southwestern New Mexico contains veins of the Ag-Ni-Co-U type. Mineralization consists of native silver, nickel and cobalt arsenides and sulpharsenides

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Possible explanation for unique character of the Rio Grande in Elephant Butte area, Sierra County, New Mexico

Richard P. Lozinsky New Mexico Bureau of Mines and Mineral Resources, Socorro, NM, 87131 Throughout most of its course in New Mexico, the Rio Grande has incised a channel into erodable basin-fill sediments of the

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