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New Mexico Geological Society
Fall Field Conference Guidebook - 20
The Border Region
Diego A. Cordoba, Sherman A. Wengerd and John Shomaker, eds., 1969, 228 pages.
On behalf of the Executive Committee and members of the New Mexico Geological Society, Inc., I welcome you to our Twentieth Annual Field Conference. The society is indeed honored and fortunate to be able to sponsor this tour in our neighboring State of Chihuahua. The first day road log is from Ciudad Juarez to Nuevo Casas Grandes, via Sierra de Juarez, Sierra Boca Grande, Ascencion, and Janos. Much of this trip is across the broad bolson plains of northwestern Chihuahua where we will learn about the geologic histories of these basins and their potentially important water supplies. The traverse is punctuated by a stop at the southern end of the Juarez Mountains to visit some Lower Cretaceous reefs and at the pass of Sierra Boca Grande where Permian rocks are exposed. The second day road log is from Nuevo Casas Grandes to Chihuahua, via Paquime, San Buenaventura, Mina la Mojina, and Sueco Junction. Geologic highlights include an extensive and variable sequence of volcanic rocks exposed in roadcuts in Sierra de las Tunas. At the Sierra de la Mojina stop we will see a spectacular section of Lower Cretaceous carbonates, an operating manganese mill, and an abandoned silver mine. The third day road log is from Chihuahua to Ciudad Juarez, via Encinillas Basin, Sueco Junction, Villa Ahumada and Sierra del Presidio. Highlighs include "arm waving" at Jurassic and Cretaceous sediments in the Sierra de la Alcaparra, the anticlinal Sierra de Samalayuca with its core of metamorphosed sediments, and highly fossiliferous Lower Cretaceous reef limestones at the north end of Sierra del Presidio.
Downloads:
Papers from this guidebook are available for free download (requires Acrobat 8.0 or later). Roadlogs, maps, and other selected sections of this guidebook are only available in print.
- Table of Contents: (704 KB PDF)
- History of the United States-Mexican boundary survey--1848-1955(9.12 MB PDF) James, Harold L., pp. 40-55.
- Casas Grandes: A bygone metropolis of the Gran Chichimeca(1.22 MB PDF) Lambert, Marjorie F., pp. 56-60.
- Some keys to the geology of northern Chihuahua(888 KB PDF) DeFord, Ronald K., pp. 61-65.
- The "Alpine Basin and Range Province" of north-central Chihuahua(91 KB PDF) de Cserna, Zoltan, pp. 66-67.
- Lower Paleozoic rocks in the El Paso area(889 KB PDF) LeMone, David V., pp. 68-79.
- Microfacies of Pennsylvanian and Wolfcampian strata in southwestern U.S.A. and Chihuahua, Mexico(3.79 MB PDF) Wilson, James L.; Madrid-Solis, A.; Malpica-Cruz, R., pp. 80-90.
- Mesozoic stratigraphy of northeastern Chihuahua, Mexico(1.43 MB PDF) Cordoba, Diego A., pp. 91-96.
- Ammonite zones of northern Chihuahua(652 KB PDF) Young, Keith, pp. 97-101.
- Geology and petrography of the Campus Andesite Pluton, El Paso County, Texas(613 KB PDF) Hoffer, Jerry M., pp. 102-107.
- Volcanic history of the Black Mountain-Santo Tomas basalts, Potrillo volcanics, Dona Ana County, New Mexico(2.14 MB PDF) Hoffer, Jerry M., pp. 108-114.
- Photointerpretive mapping from space photographs of Quaternary geomorphic features and soil association in northern Chihuahua and adjoining New Mexico and Texas(5.46 MB PDF) Morrison, Roger B., pp. 116-129.
- Notes on the geomorphology and late Cenozoic geology of northwestern Chihuahua(848 KB PDF) Hawley, John W., pp. 131-142.
- Pluvial Lake Palomas, northwestern Chihuahua, Mexico(2.50 MB PDF) Reeves, Corwin C., Jr., pp. 143-154.
- Late Cenozoic strata of the El Paso-Juarez area(137 KB PDF) Strain, William S., pp. 155-157.
- Quaternary surfaces, sediments, and mollusks: Southern Mesilla Valley, New Mexico and Texas(434 KB PDF) Metcalf, Artie L., pp. 158-164.
- Stratigraphic study of the Sierra Santa Rita(1.52 MB PDF) Tovar, Ing. Jorge, pp. 165-170.
- Stratigraphy of Sierra Banco de Lucero, State of Chihuahua(91 KB PDF) Guerrero, Jose C., pp. 171-172.
- Mesozoic stratigraphy of Sierra de la Alcaparra, northeastern Chihuahua(117 KB PDF) Torres, Rafael Rodriguez, pp. 173-175.
- Geology of Sierra de Samalayuca, Chihuahua, Mexico(744 KB PDF) Berg, Edgar L., pp. 176-181.
- Facets of the geology of the Sierra del Presidio area, north-central Chihuahua(1.07 MB PDF) Webb, Donald S., pp. 182-185.
- Key oil tests and stratigraphic sections in southwest New Mexico(969 KB PDF) Kottlowski, Frank E.; Foster, Roy W.; Wengerd, S. A., pp. 186-196.
- Geologic history and the exploration for oil in the border region(2.00 MB PDF) Wengerd, Sherman A., pp. 197-204.
- The manganese metallogenic province in the state of Chihuahua, Mexico(576 KB PDF) Garcia-Gutierrez, Carlos; Garcia-Gutierrez, Luis, pp. 205-206.
- Terrenates manganese district, Chihuahua, Mexico(240 KB PDF) McAnulty, W. N., Sr., pp. 207-208.
- Ground-water occurrence of the El Paso area and its related geology(1.27 MB PDF) Cliett, Tom, pp. 209-214.