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Trans-Pecos magmatic province

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Journal Article
Published: 01 April 1996
The Canadian Mineralogist (1996) 34 (2): 241–264.
Series: GSA Special Papers
Published: 01 January 1987
DOI: 10.1130/SPE215-p317
... Clarion Island (CI) represents young (1–1.7 Ma) fracture zone-related volcanism in the east-central Pacific Ocean. The eastern Trans-Pecos magmatic province (TPMP) of west Texas represents continental volcanism that developed during waning Laramide compression, primarily 30 to 38 Ma. Both rock...
Journal Article
Journal: GSA Bulletin
Published: 01 October 1977
GSA Bulletin (1977) 88 (10): 1421–1427.
...DANIEL S. BARKER Abstract The Trans-Pecos magmatic province of West Texas and southern New Mexico is a more eroded analogue of the Kenya (Gregory) rift in East Africa. Trans-Pecos alkalic rocks are similar to the basalt-phonolite-trachyte-rhyolite assemblage from fissure and multicenter eruptions...
Journal Article
Journal: GSA Bulletin
Published: 01 October 1977
GSA Bulletin (1977) 88 (10): 1428–1436.
...DANIEL S. BARKER; FLOYD N. HODGES Abstract Electron probe microanalyses of minerals in the nine intrusive rock types of the Diablo Plateau document compositional changes accompanying magmatic differentiation. Plagioclase occurs only in the least differentiated rock type. Alkali feldspar phenocrysts...
Journal Article
Journal: GSA Bulletin
Published: 01 October 1977
GSA Bulletin (1977) 88 (10): 1437–1446.
Series: GSA Special Papers
Published: 01 January 1990
DOI: 10.1130/SPE246-p103
... Peraluminous rhyolites that are chemically somewhat similar to topaz rhyolites and anorogenic granites occur in an orogenic setting near Sierra Blanca in the Tertiary Trans-Pecos magmatic province. The Sierra Blanca rhyolites are even more enriched in most incompatible trace elements than...
Journal Article
Journal: Geosphere
Published: 08 November 2019
Geosphere (2019) 15 (6): 1958–1972.
..., but the processes and timing of REE mobility are rarely well constrained. The Round Top laccolith in the Trans-Pecos magmatic province of west Texas, a REE ore prospect, has crosscutting fractures filled with fluorite and calcite along with a variety of unusual minerals. Most notably among these is an yttrium...
FIGURES | View All (14)
Image
Location of the Sierra Blanca Complex (shown in red) relative to major geol...
Published: 08 November 2019
Figure 1. Location of the Sierra Blanca Complex (shown in red) relative to major geologic structures within the Trans-Pecos magmatic province. The gray shaded region represents the Texas lineament zone—a broad, ∼80-km-wide zone of parallel transtensional faulting. Northwest-trending normal faults
Journal Article
Journal: Economic Geology
Published: 01 July 1993
Economic Geology (1993) 88 (4): 934–947.
...Eric W. James; Christopher D. Henry Abstract Tertiary ore deposits and prospects in Trans-Pecos Texas and adjacent Mexico have Pb isotope ratios that indicate probable sources of metals. Sulfides from these deposits have a wide range of Pb isotope ratios: 206 Pb/ 204 Pb, 17.74 to 20.04; 207 Pb/ 204...
Series: GSA Special Papers
Published: 01 January 1979
DOI: 10.1130/SPE180-p113
... was largely confined to the interval 34 to 27 m.y. ago, although some activity persisted until 23 m.y. ago. Mid-Tertiary volcanic rocks are exposed eastward across Chihuahua between the Sierra Madre Occidental and the alkalic volcanic province of Trans-Pecos Texas. Volcanic rocks of this region are chiefly...
Journal Article
Published: 01 December 1987
American Mineralogist (1987) 72 (11-12): 1122–1130.
...Jeffrey N. Rubin; Jonathan G. Price; Christopher D. Henry; David W. Koppenaal Abstract The Round Top intrusion, one of five shallow rhyolite laccoliths in the Tertiary Trans-Pecos Texas magmatic province near Sierra Blanca, Texas, was chemically modified by pegmatitic vapor-phase crystallization...
Journal Article
Journal: Geology
Published: 01 May 2003
Geology (2003) 31 (5): 447–450.
... subduction-related magmatism that formed the major porphyry copper province of southwestern North America. The Red Hills porphyry copper-molybdenum deposit is located in the Trans-Pecos region of Texas, 8 km west of Shafter in Presidio County ( Ross, 1943 ; Head, 2002 ; Fig. 2 ). It consists...
FIGURES | View All (5)
Journal Article
Journal: GSA Bulletin
Published: 01 March 2003
GSA Bulletin (2003) 115 (3): 298–313.
... is especially strong. The Camargo volcanic field lies in the northern part of the province, midway between the Sierra Madre Occidental and Trans-Pecos Texas. It is formed by Pliocene–Pleistocene (4.7–0.09 Ma) intraplate mafic alkalic volcanic rocks, some of which contain peridotite, pyroxenite, and granulite...
FIGURES | View All (9)
Journal Article
Journal: GSA Bulletin
Published: 01 October 1997
GSA Bulletin (1997) 109 (10): 1349–1360.
... than younger capping mafic lava flows within the Gulf of California extensional province of western Sonora and Neogene basaltic lava flows in the Datil-Mogollon field. They are similarly distinct from basaltic dikes and lava flows that are clearly associated with Basin and Range faulting in Trans-Pecos...
Series: GSA Special Papers
Published: 01 January 1987
DOI: 10.1130/SPE215-p335
... Alkalic rocks in Trans-Pecos Texas were emplaced in two distinctly different tectonic environments: one compressional (contractional) and one extensional. Rocks (Eocene and early Oligocene) of the older compressional environment can be divided into a western alkali-calcic belt and an eastern...
Image
Map of North American crustal <b>provinces</b> and <b>magmatic</b> events that may have g...
Published: 01 August 2017
Fig. 6.— Map of North American crustal provinces and magmatic events that may have generated the detrital zircons deposited in High Plains sediments. Major zircon provinces are modified from Dickinson and Gehrels (2009b) and references therein. Distribution of calderas and tuffs associated
Journal Article
Published: 01 February 2003
American Mineralogist (2003) 88 (2-3): 316–329.
... with a wide range of silica content (64.3 to 76.6 wt%) and peralkalinity (agpaitic indices up to 1.75). Study areas include Pantelleria, Italy; the Trans-Pecos Magmatic Province (TPMP), Texas; the Oregon Plateau, southeastern Oregon and northwestern Nevada; the Hart Mountain volcanic center (HMVC), Oregon...
FIGURES | View All (14)
Journal Article
Journal: GSA Bulletin
Published: 01 May 2015
GSA Bulletin (2015) 127 (5-6): 770–780.
... of Tertiary alkaline rocks of the eastern Trans-Pecos magmatic province, Texas : Contributions to Mineralogy and Petrology , v. 97 , p. 72 – 92 , doi:10.1007/BF00375216. Nesbitt H.W. Young G.M. , 1982 , Early Proterozoic climates and plate motions inferred from major element chemistry...
FIGURES | View All (10)
Journal Article
Published: 01 December 1987
Bulletin of the Seismological Society of America (1987) 77 (6): 2005–2017.
... . Dasch E. J. Armstrong R. L. Clabaugh S. E. (1969) . Age of the Rim Rock dike swarm, Trans-Pecos Texas , Bull. Geol. Soc. Am. 80 , 1819 - 1823...
Journal Article
Published: 01 August 1985
Journal of the Geological Society (1985) 142 (4): 697–708.
... of compositional diversity within each cluster, but magma mixing was locally important. Fifteen nepheline-bearing felsic plutons each exceed 1 km2 in outcrop area; these and many smaller bodies define a belt at least 400 km long at the northeastern limit of the Trans-Pecos magmatic province parallel...