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Accueil du site → Master → Etats Unis → 1987 → Geology and structure of the Yuha Desert between Ocotillo, California, U.S.A. and Laguna Salada, Baja California, Mexico

San Diego State University (1987)

Geology and structure of the Yuha Desert between Ocotillo, California, U.S.A. and Laguna Salada, Baja California, Mexico

Isaac, Sharon

Titre : Geology and structure of the Yuha Desert between Ocotillo, California, U.S.A. and Laguna Salada, Baja California, Mexico

Auteur : Isaac, Sharon

Université de soutenance : San Diego State University

Grade : Master of Science in Geological Sciences 1987

Résumé
Sharon Isaac’s base map was taken from three topographic maps (Coyote Wells 7.5 minute Quadrangle, Yuha Basin 7.5 minute Quadrangle, and El Centinela 15’ x 20’-minute Cuadrángulo [Quadrangle]). Two of the topographic maps are north of the border and are U.S. Geological Survey 7.5-minute Quadrangles. A single, Carta Geologica - CETENAL [Comisión de Estudios del Territorio Nacional], topographic base-map was used south of the border. Coyote Wells 7.5 minute Quadrangle map : Scale 1:24,000. Mapped, edited, and published by the Geological Survey. Control by USGS, NOS/NOAA and USCE. Topography from aerial photographs by photogrammetric methods Aerial photographs taken 1953. Field checked 1957, Photorevised 1979. Polyconic projection. 1927 North American datum 10,000-foot grid based on California coordinate system, zone 6 1000-meter Universal Transverse Mercator grid ticks, zone 11. Contour Interval 20 feet National Geodetic Vertical Datum of 1929. Yuha Basin 7.5 minute Quadrangle map : Scale 1:24,000. Mapped, edited, and published by the Geological Survey. Control by USGS, USC & GS and USCE. Topography from planetable surveys by USBR 1940-41 and from aerial photographs by Kelsh plotter. Aerial photographs taken 1953, Field checked 1957. Polyconic projection. 1927 North American datum 10,000-foot grid based on California coordinate system, zone 6 1000-meter Universal Transverse Mercator grid ticks, zone 11. Contour Interval 10 feet. National Geodetic Vertical Datum of 1929Yuha Basin 7.5 minute Quadrangle map : Scale 1:24,000. Mapped, edited, and published by the Geological Survey. Control by USGS, USC & GS and USCE. Topography from planetable surveys by USBR 1940-41 and from aerial photographs by Kelsh plotter. Aerial photographs taken 1953, Field checked 1957. Polyconic projection. 1927 North American datum 10,000-foot grid based on California coordinate system, zone 6 1000-meter Universal Transverse Mercator grid ticks, zone 11. Contour Interval 10 feet. National Geodetic Vertical Datum of 1929. El Centinela 15’ x 20’-minute Cuadrángulo [Quadrangle] map : Carta Geologica - CETENAL [Comisión de Estudios del Territorio Nacional]. Referencia de Cotas Nivel Medio del Mar (Elevations are height above mean sea level). Fecha de Vuelo 1972 (Aerial Photographs 1972). Primera Edicion 1977 (First Edition 1977). Equdistancia Entre Curvas de Nivel 20 Metros (Contour interval 20 meters). Escala (Scale) 1:50,000.

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Page publiée le 22 octobre 2020