Geology of the Sierra Blanca area, Hudspeth County, Texas

Albritton, Claude C.; Smith, J. Fred

doi:10.3133/pp479

Cited by 39 publications

(41 citation statements)

References 14 publications

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“…Near Ft. Hancock, the bedrock consists of Cretaceous limestone that has been folded and fractured during Laramide shortening (Albritton and Smith, 1965). This is unconformably overlain by approximately 250 m of the Pliocene-age Fort Hancock Formation, which is composed of clays, silts, sands, and gravels deposited in fluvial and alluvial fan environments.…”

Section: Background and Geologic Settingmentioning

confidence: 99%

Integrating high‐resolution refraction data into near‐surface seismic reflection data processing and interpretation

et al. 1998

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Shallow seismic reflection surveys commonly suffer from poor data quality in the upper 100 to 150 ms of the stacked seismic record because of shot-associated noise, surface waves, and direct arrivals that obscure the reflected energy. Nevertheless, insight into lateral changes in shallow structure and stratigraphy can still be obtained from these data by using first-arrival picks in a refraction analysis to derive a near-surface velocity model. We have used turning-ray tomography to model near-surface velocities from seismic reflection profiles recorded in the Hueco Bolson of West Texas and southern New Mexico. The results of this analysis are interval-velocity models for the upper 150 to 300 m of the seismic profiles which delineate geologic features that were not interpretable from the stacked records alone. In addition, the intervalvelocity models lead to improved time-to-depth conversion; when converted to stacking velocities, they may provide a better estimate of stacking velocities at early traveltimes than other methods.

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Section: Background and Geologic Settingmentioning

confidence: 99%

Integrating high‐resolution refraction data into near‐surface seismic reflection data processing and interpretation

et al. 1998

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“…However, far-traveled quartzite clasts first arrived in the Mesilla Basin by 3.58 Ma based on the proximity of the Camp Rice Formation to the Gilbert-Gauss geomagnetic polarity boundary (Mack et al, 1993;Repasch et al, 2017), suggesting that the Rio Grande had reached the Mesilla Basin by this time. In the Hueco Basin, Albritton and Smith (1968) and Gustavson (1991) dated the appearance of the Rio Grande sometime before 2.06 Ma based on the Huckleberry Ridge ash that is interbedded with Camp Rice sediments. However, Hawley et al (2009) suggested an earlier appearance of the Rio Grande in the Hueco Basin, generally coincident with its appearance in the Mesilla Basin.…”

Section: Sedimentary Recordmentioning

confidence: 99%

Pliocene–Holocene deformation in the southern Rio Grande rift as inferred from topography and uplifted terraces of the Franklin Mountains, southern New Mexico and western Texas

2018

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In most extensional terrains such as the Rio Grande rift, alluvial fans and bajadas cover faults and terraces as extension progresses, thus limiting the faults and terraces as useful records of uplift. However, in the Franklin Mountains of western Texas and southern New Mexico (USA), rapid aggradation of basin floors by extensive playa lakes and floodplain deposits of the Rio Grande during the Pliocene buried the irregular mountain-front fans, thus creating a low-gradient surface. This originally planar surface was subsequently uplifted and deformed during faulting, providing a record of the Pliocene-Holocene extensional deformation in the southern Rio Grande rift. Deformation and uplift of the Franklin Mountains in the southern Rio Grande rift was estimated by measuring the elevation of late Pliocene terraces that are adjacent to range-bounding faults. The uplifted terraces are exposed along both sides of the Franklin Mountains, and lie as much as 130 m above their original elevation. Together the uplifted terraces form an anticlinal arch that mimics the profile of the range crest of the mountains. Three important conclusions can be drawn from the similarity of profiles among the terraces and mountain crest. First, the observation that the terraces mimic the range crest implies that the present-day topography of the mountains is likely tectonic in origin. Second, the east-side terraces are higher than the west-side terraces, suggesting rotation of the mountains during deformation. Estimated rotation since the Pliocene is ~5% of the total rotation. Third, fault throw rate calculations indicate differential slip along the length of the eastern boundary fault zone. The fault profile and throw rate calculations along the eastern margin of the range are skewed to the south, suggesting that the southern segment of the Franklin Mountains has accumulated a majority of the slip during this time frame. These observations, coupled with geophysical data highlighting buried faults beneath the El Paso (Texas)-Juárez (Mexico) metropolitan region, suggest that normal faults related to uplift of the Franklin Mountains have been growing in length toward the south over the last several million years.

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“…Thickening of the Jurassic-Lower Cretaceous section from platform areas into the trough is dramatic; e.g., typical Diablo Platform section sections (Jurassic absent) are ~800 m thick and, in the adjacent trough sections are in excess of 4500 m thick (Haenggi, 2002, Figures 6 and 7 therein). Haenggi, 2002) showing key outcrop areas and wells used to construct A (see Table 1 Albritton and Smith (1965); 3-Bask "9" well, interpretation of well logs; 4-S. Quitman Mountains, Jones and Reaser (1970); 5-Central Chihuahua trough, Haenggi (1966), DeFord and Haenggi (1970); 6-S. Alcaparra, Rodríguez Torres (1969); 7-Banco Lucero, Córdoba (1969); 8-Big Hatchet Mts., Zeller (1965); 9-Little Hatchet Mts., Lucas and Lawton (2000). Reproduced with permission of Sociedad Geológica Mexicana.…”

Section: Chihuahua Troughmentioning

confidence: 99%

Chihuahua trough—A Jurassic pull-apart basin

Haenggi¹,

Muehlberger²

2005

The Mojave-Sonora Megashear Hypothesis: Development, Assessment, and Alternatives

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The Chihuahua trough is a right-lateral pull-apart basin that began to form ca. 159 to ca. 156 Ma (Oxfordian) during a period of relative counterclockwise rotation of the North American plate. The Chihuahua trough developed as a right step between two right-lateral fault systems-the Texas "zone" and the San Marcos fault zone, which has been interpreted as an element of the Mojave-Sonora megashear. By this interpretation, the Mojave-Sonora fault zone of the Caborca area cannot-and need not-be projected to join the San Marcos fault zone as a continuous system in medial Jurassic time.Jurassic seas were well established by latest Oxfordian time, and there was little change in basin confi guration throughout the remainder of Late Jurassic and Early Cretaceous time. Elements of a broad zone of intersecting preexisting northwesttrending and north-trending structures along the southwest border of the North American craton provide the fabric for development of the pull-apart basin between the Diablo and Aldama platforms. While the presence of Middle to Upper Jurassic marine rocks in Chihuahua and Sonora has received comment in previous articles, this paper provides a regionally consistent tectonic mechanism for creating two arms of the Mar Mexicano.

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Geology of the Sierra Blanca area, Hudspeth County, Texas

Abstract: Age and correlation. _____ _---Conditions of deposition. ____________ m Fag-43 44 44 45 45 45 49 49

Cited by 39 publications

References 14 publications

Integrating high‐resolution refraction data into near‐surface seismic reflection data processing and interpretation

Integrating high‐resolution refraction data into near‐surface seismic reflection data processing and interpretation

Pliocene–Holocene deformation in the southern Rio Grande rift as inferred from topography and uplifted terraces of the Franklin Mountains, southern New Mexico and western Texas

Chihuahua trough—A Jurassic pull-apart basin

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Geology of the Sierra Blanca area, Hudspeth County, Texas

Abstract: Age and correlation. _______ ___---Conditions of deposition. ____________ m Fag-43 44 44 45 45 45 49 49

Cited by 39 publications

References 14 publications

Integrating high‐resolution refraction data into near‐surface seismic reflection data processing and interpretation

Integrating high‐resolution refraction data into near‐surface seismic reflection data processing and interpretation

Pliocene–Holocene deformation in the southern Rio Grande rift as inferred from topography and uplifted terraces of the Franklin Mountains, southern New Mexico and western Texas

Chihuahua trough—A Jurassic pull-apart basin

Contact Info

Product

Resources

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Abstract: Age and correlation. _____ _---Conditions of deposition. ____________ m Fag-43 44 44 45 45 45 49 49