Palabras clave: México, Mesa Central, Estratigrafía cenozoica, Tectónica de México. There are only a handful of specific studies about them and, in general, these come from nonconventional sources or are hard to find (theses, private reports for mining companies or government dependencies). Programas [VIDEO] Mesa Central: capítulo 15 - domingo 30 de junio de 2019. 0000009302 00000 n S.L.P.—San Luis Potosí; Gto.—Guanajuato; Jal.—Jalisco; Dgo.—Durango; Zac.—Zacatecas; Ags.—Aguascalientes; VMS—volcanogenic hosted massive sulfide deposit; IOCG—iron oxide–copper-gold deposit; MVT—Mississippi Valley–type deposit.Figure 6. Crustal structure of Mesa Central, the location of sections is shown in SW of San Juan del Río in Durango, near the edge of Mesa Central, Figure 3. It is situated on the Search for other works by this author on: These rocks appear in the N and NW and as isolated outcrops in the center, S, and E of Mesa Central The Paleocene to middle Eocene rocks described above underlie local angular unconformities beneath a volcanic rock cover. La Mesa Central de México 287 estratigrafía bastante completa, así como edades isotópicas de rocas volcánicas y algunos estudios estructurales, lo que ha permitido que se hayan propuesto algunos modelos de su evolución tectónica. The Miocene volcanic rocks in Mesa Central are located in the central (San Luis Potosí region) and western part of the province (Durango), and are represented by fissure basalts that form plateaus and belong to the Extensional Province of Northern México, and to the subprovince of the southern Basin-and-Range (see The youngest volcanic event, which culminates the magmatic history of Mesa Central and unconformably covers the geological units described above, consists of mafic alkaline Pliocene to Quaternary rocks, and belongs to the Extensional Province of Northern México and to the subprovince of the southern Basin-and-Range.
In San Miguel de Allende, a throw of 450 m and two phases of activity between the Oligocene and the middle Miocene were documented. 0000010732 00000 n In Zacatecas, Late Triassic rocks within Mesa Central, whose age was established by their fossil content, were reported in the Sierra de Salinas (Peñón Blanco; The Triassic turbidites located in the Sierra de Salinas, Sierra de Catorce, and Charcas in the State of San Luis Potosí were interpreted as evidence for the occurrence of a continental margin.
Ángel Francisco Nieto-Samaniego, Susana Alicia Alaniz-Álvarez, Antoni Camprubí, 2007.
The lineament roughly coincides with the NE boundary between the Cenozoic volcanic rocks of the Sierra Madre Occidental and the outcrops of the Mesozoic volcanosedimentary sequences, and with the northern edge of the N-S grabens of the Sierra Madre Occidental (The eastern segment extends from San Luis de La Paz to Salinas de Hidalgo and constitutes the boundary between the southern and northern regions of Mesa Central.
The northern region shows an advanced degree of erosion, and is below 2000 masl. Read reviews Mesa, Central Arizona .
Such change has been interpreted as an indication of the beginning of the Laramide orogeny (The unconformity on the Mesozoic rocks that is found in the entire Mesa Central region corresponds in time to the Laramide orogeny. Mesa Central, also called Mesa de Anáhuac, or Mesa Central del Sur, high plateau region in central Mexico. Only the upper units of the Mesozoic Basin of Central México show a change of facies, from limestone to clastic rocks with volcanic clasts in the younger strata. The northern region ... Mexico Mesa Central Mesa The Mesa Vista Consolidated School District is gathering feedback on issues important to you as we plan for upcoming school year. The oldest rocks are Triassic marine facies underlain by Jurassic continental rocks. TMVB—Trans-Mexican Volcanic Belt. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The age of this unit, Oxfordian to Tithonian, was defined by its fossil content (The marine environment initiated in the Upper Jurassic and produced three different marine strata in Mesa Central: The 4000-m-thick strata, corresponding to the Valles–San Luis Potosí Platform, were deposited in the eastern Mesa Central and toward the E (A thick sequence of marine rocks that corresponds to open-sea and deep-water facies strata is located W of the Valles–San Luis Potosí platform, where it covers nearly the entire Mesa Central. 35%), orthoclase (10%–15%), oligoclase (ca.
It is not possible to dismiss the idea that the El Bajío fault is older than the above age. Latitude & Longitude Until now, most correlations have been based on lithologic criteria, which is highly uncertain for volcanic rocks. The lower part of this unit is formed of platform limestone and dolomitic limestone (Zuloaga Formation), whereas the upper part is primarily formed of calcareous mudstone with chert layers (La Caja Formation). 0000006130 00000 n Se encuentra comprendida entre las Sierras Madres Occidental y Oriental, y limita al …