Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Roberto S. Molina Garza"'
Autor:
Roberto S. Molina Garza
Publikováno v:
Geofísica Internacional, Vol 44, Iss 2, Pp 197-210 (2005)
The Acatita plutons intrude the upper Paleozoic of Las Delicias, southern Coahuila. We collected 96 samples from 15 sites in two plutons from Valle El Sobaco and Sierra Los Remedios for paleomagnetic and 40Ar-39Ar analyses. Separates of hornblende (2
Externí odkaz:
https://doaj.org/article/2e45778039a242f6afe8840ef10b7197
Publikováno v:
Geofísica Internacional, Vol 31, Iss 4, Pp 443-466 (1992)
Se reportan los resultados de un estudio combinado de paleomagnetismo, propiedades magnéticas, observaciones con microscopio óptico en laminas delgadas y superficies pulidas, microscopio electrónico de barrido (SEM) y anisotropia de susceptibilida
Externí odkaz:
https://doaj.org/article/d9751301146947d7a04394fb8b7803c1
Publikováno v:
Quaternary International
In the Mesoamerican region, arid or hydrological variable conditions are commonly interpreted from 4 ka onwards. It is not well known how these changes modified the Mesoamerican monsoon system, which were the main atmospheric-oceanic forcings involve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::727073ef67264c84fcff1a18c89b0360
https://doi.org/10.1016/j.quaint.2020.12.042
https://doi.org/10.1016/j.quaint.2020.12.042
Autor:
Maria Isabel Sierra-Rojas, James W. Granath, Diego Villagómez, James Pindell, Rod Graham, Roberto S. Molina-Garza
Publikováno v:
Geological Society, London, Special Publications. 504:285-314
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af894714d213ab4f1633b4f57fae5507
https://doi.org/10.1144/sp504-2020-70
https://doi.org/10.1144/sp504-2020-70
Publikováno v:
Special publication of the Geological Society of London, Vol. 504, No 1 (2021) pp. 29-76
We present an updated, internally consistent synthesis of the Permo-Triassic assembly and Mesozoic evolution of the Gulf of Mexico, Mexico, Florida–Bahamas and northern South America (Guiana margin and northern Andes), incorporating advances at reg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::602eed62a5107a8af4f755e15feb2c6b
https://doi.org/10.1144/sp504-2020-43
https://doi.org/10.1144/sp504-2020-43
Provenance determinations of sediment deposited in circum–Gulf of Mexico basins rely on understanding the geologic elements present in the basement provinces located from northeast Mexico to Honduras. Relevant geologic features of these provinces a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ac3b2b7135a82ec63e711a98ae62f00
https://doi.org/10.1130/2021.2546(01)
https://doi.org/10.1130/2021.2546(01)
Autor:
James Pindell, Stephen P. J. Cossey, Robert N. Erlich, Bodo Weber, Rod Graham, Roberto S. Molina Garza, Wendy Hale-Erlich, Mark R. Bitter
New and existing strontium isotope data are given for several widespread evaporites from western equatorial Pangea. The data indicate evaporite deposition occurred on proximal margins of the Gulf of Mexico at ca. 169 Ma (Bajocian, not Callovian as co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82e96cc84321849d1c08c9b4bb104035
https://doi.org/10.1130/2020.2546(12)
https://doi.org/10.1130/2020.2546(12)
Jurassic northward migration of Mexico, which lay on the southern part of the North America plate, resulted in temporal evolution of climate-sensitive depositional environments. Lower–Middle Jurassic rocks in central Mexico contain a record of warm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e28d5e8653da3627c70a63fb9d9b7b9a
https://doi.org/10.1130/2020.2546(13)
https://doi.org/10.1130/2020.2546(13)
Autor:
Maria Isabel Sierra-Rojas, James Pindell, Alberto Figueroa Guadarrama, Roberto S. Molina Garza, Timothy F. Lawton, José Rafael Barboza Gudiño
The Gulf of Mexico is best understood as a subsidiary basin to the Atlantic, resulting from breakup of Pangea. The rifting process and stratigraphy preceding opening of the gulf are, however, not fully understood. We present new stratigraphic, sedime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7213c39a97f3b41093fea2f8998e54d
https://doi.org/10.1130/2020.2546(06)
https://doi.org/10.1130/2020.2546(06)
We redefine the “Chontal arc” of the southern Isthmus of Tehuantepec, Mexico, as the Chontal allochthon. The Chontal assemblage is composed of Upper Cretaceous low-grade metavolcanic and metasedimentary rocks included in the Chivela lithodeme. By
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fef7c8e71d7fb91c5714a8dd22f29311
https://doi.org/10.1130/2020.2546(15)
https://doi.org/10.1130/2020.2546(15)