The Aljibes half-graben—Active extension at the boundary between the trans-Mexican volcanic belt and the Basin and Range Province, Mexico

Suter, Max; Martínez, Marta Gil; Martínez, María Martínez; Farrar, Edward

doi:10.1130/0016-7606(1995)107<0627:tahgae>2.3.co;2

Cited by 62 publications

(54 citation statements)

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“…In fact, in the western part of the MVB a well-defined triple junction with three intersecting rifts has been proposed (Tepic-Zacoalco rift, Colima rift, and Chapala rift; e.g., Allan, 1986;Garduño-Monroy et al, 1993;Frey et al, 2007), which is widely accepted by all researchers. In the remaining parts of the MVB (the C-MVB and the eastern part of the MVB-E-MVB; Figure 1) also, such extensional features have been documented in numerous studies (Negendank et al, 1985;Harrison, 1989, 1990;Ferrari et al, 1990;Suter et al, 1992Suter et al, , 1995aSuter et al, , 1995bSuter et al, , 2001Mooser et al, 1996;Alaniz-Álvarez et al, 1998;García-Palomo et al, 2000, 2002a, 2002bAnguita et al, 2001;Márquez et al, 2001;Wassmer et al, 2004;Norini et al, 2006;CamposEnríquez et al, 2013CamposEnríquez et al, , 2014. Suter et al (2001) called these extensional features intra-arc extension, assuming that the MVB is an arc, which has been questioned, for example, by Verma (2002Verma ( , 2004Verma ( , 2009Verma ( , 2015a.…”

Section: Geological Evidencementioning

confidence: 98%

Present state of knowledge and new geochemical constraints on the central part of the Mexican Volcanic Belt and comparison with the Central American Volcanic Arc in terms of near and far trench magmas

Verma¹

2015

Turkish J Earth Sci

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A brief critical review is presented of the geological, geophysical, geochemical, and plate tectonic evidence for the origin and evolution of the central part of the Mexican Volcanic Belt (C-MVB). Databases were constructed for the C-MVB from new and published data as well as for the Central American Volcanic Arc (CAVA), other continental and island arcs, continental rifts or extensional areas, and collision zones. Conventional procedures as well as statistical techniques of multidimensional tectonic discrimination diagrams and significance tests were used to interpret the data. A subdivision of the databases for the C-MVB and CAVA into near the trench or front-arc and far from the trench or backarc magmas helped to demonstrate the lack of slab input for the C-MVB and the presence of a classic arc-trench system for the CAVA. The use of software IgRoCS, DODESSYS, UDASYS, TecD, and TecDIA provided the following conclusions: 1) basic magmas in the C-MVB that originated in the mantle without the involvement of the subducted slab represent a continental rift setting; 2) C-MVB acid and intermediate magmas that originated, respectively, from the crust and mixed mantle-crustal sources do not show a clear influence of the present subducted slab and represent the tectonic setting of the older crustal and mixed mantle-crustal source rocks; and 3) all rocks in the CAVA were derived from the involvement of the subducted slab and represent a classical continental arc system related to the subduction of the Cocos plate beneath the Caribbean plate, whereas CAVA back-arc rocks originated mainly in the mantle, probably with much less involvement of the subducted slab. Reinterpretation of the Sr, Nd, Pb, and Hf isotopic data supports these inferences. I propose a new tectono-petrogenetic model based on the continuation of the extensional tectonics related to the triple rift system in the western part of the MVB.

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Section: Geological Evidencementioning

confidence: 98%

Present state of knowledge and new geochemical constraints on the central part of the Mexican Volcanic Belt and comparison with the Central American Volcanic Arc in terms of near and far trench magmas

Verma¹

2015

Turkish J Earth Sci

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“…Por lo anterior, estas secuencias se consideran aquí como parte Mioceno tardío cuando un extenso episodio de vulcanismo máfi co se emplaza de costa a costa, desde Nayarit hasta Veracruz, inmediatamente al norte del arco precedente, con edades que se vuelven progresivamente mas jóvenes de oeste a este (Ferrari et al, 2000b;Ferrari, 2004;Ferrari et al, 2005b) (Figura 2b). Este episodio está esencialmente conformado por mesetas basálticas, por lo general emplazadas a través de fi suras, con edades que varían entre ~11 y 8.9 Ma en la costa de Nayarit y al noroeste de Tepic (Righter et al, 1995;Ferrari et al, 2000a); entre ~11 y 8 Ma al norte de Guadalajara, en los Altos de Jalisco y en Cotija, Michoacán (Nieto-Obregón et al, 1981;Verma et al, 1985;Moore et al, 1994;Rosas-Elguera et al, 1997;Alva-Valdivia et al, 2000;Rossotti et al, 2002;RosasElguera et al, 2003); y entre ~9 y 7 Ma en Querétaro y en el área de Pathé, Hidalgo Suter et al, 1995a;Aguirre-Díaz y López-Martínez, 2001). Este vulcanismo continúa hacia el área de Tlanchinol-Huejutla, y alcanza la costa norte de Veracruz (Tantima-Álamo), con coladas de basalto alcalino y conos monogenéticos con edades comprendidas entre 7.5 y 6.5 Ma (Cantagrel y Robin, 1979;López-Infanzón, 1991;Ferrari et al, 2005b).…”

Section: Arco Del Mioceno Medio Y Tardíounclassified

“…En el resto de la FVTM oriental, las únicas estructuras tectónicas evidentes son el semigraben de Aljibes, el graben Mezquital (Suter et al, 2001) y las fallas normales del campo volcánico de Apan (García-Palomo et al, 2002). El semigraben de Aljibes está conformado por cuatro fallas normales de dirección E-W ubicadas en el límite norte de la FVTM, a ~140 km al NNW de la Ciudad de México (Suter et al, 1995a). Las fallas basculan al sur, cortan basaltos del Mioceno tardío, y se consideran potencialmente activas (Suter et al, 1995a;Suter et al, 1996).…”

Section: Geología Estructural Y Neotectónicaunclassified

“…El semigraben de Aljibes está conformado por cuatro fallas normales de dirección E-W ubicadas en el límite norte de la FVTM, a ~140 km al NNW de la Ciudad de México (Suter et al, 1995a). Las fallas basculan al sur, cortan basaltos del Mioceno tardío, y se consideran potencialmente activas (Suter et al, 1995a;Suter et al, 1996). El graben del Mezquital es una estructura de dirección E-W ubicada ~40 km al este de Aljibes.…”

Section: Geología Estructural Y Neotectónicaunclassified

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Petrogénesis ígnea de la Faja Volcánica Transmexicana

Gómez-Tuena¹,

Orozco-Esquivel²,

Ferrari³

2005

BSGM

113

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C i e n A ñ o s ResumenLa extraordinaria diversidad magmática de la Faja Volcánica Transmexicana está controlada (directa o indirectamente) por dos placas oceánicas independientes cuyos parámetros geofísicos y composicionales se modifi can constantemente a lo largo de la trinchera, por un régimen tectónico esencialmente distensivo que opera con distinta intensidad sobre la placa continental, por un basamento cortical con diferentes edades, espesores y composiciones, y por una fuente mantélica primaria de composición extremadamente variable que ha sido infl uenciada, en mayor o menor medida, por los agentes químicos derivados de la subducción. El régimen tectónico convergente y, en consecuencia, el arco magmático, tampoco han evolucionado de forma homogénea a lo largo su historia, sino que han mostrado transformaciones notables en su posición, geometría y composición. Por estos motivos, la Faja Volcánica Transmexicana es el resultado de uno de los sistemas tectónicos convergentes más complejos del planeta, el objeto de más de un siglo de investigaciones científi cas, y también el centro de las controversias más notables sobre la geología mexicana.Palabras clave: Faja Volcánica Transmexicana, México, subducción, arco magmático, petrología ígnea, manto, corteza. Abstract The magmatic diversity of the Transmexican Volcanic Belt is directly or indirectly controlled by two independent oce-

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“…In general, the regional tectonics in the MVB have shown to be of extensional type with the minimum compressive stress in the north-south direction (Suter et al, 2001). The stress state of the MVB area has been inferred largely from major structures -such as alignments, faults, and barriers of volcanoes and dikes (e.g., Suter et al, 1995) -because of the scarcity of instrumental seismicity data (Zuñiga et al, 2003). Several studies have suggested that due to the morpho-tectonic composition of the MVB, there are significant differences in the behavior of seismic signals originated from subduction earthquakes among sites within the MVB as opposed to other reception sites (e.g., Shapiro et al, 1997;Ferrer-Toledo et al, 2004;Cruz et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

On the behavior of site effects in central Mexico (the Mexican volcanic belt – MVB), based on records of shallow earthquakes that occurred in the zone between 1998 and 2011

Clemente-Chavez¹,

Zúñiga²,

Lermo³

et al. 2014

Nat. Hazards Earth Syst. Sci.

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Abstract. The Mexican volcanic belt (MVB) is a seismogenic zone that transects the central part of Mexico with an east-west orientation. The seismic risk and hazard of this seismogenic zone has not been studied in detail due to the scarcity of instrumental data as well as because seismicity in the continental regime of central Mexico is not too frequent. However, it is known that there are precedents of large earthquakes (M w > 6.0) that have taken place in this zone. The valley of Mexico City (VM) is the sole zone, within the MVB, that has been studied in detail. Studies have mainly focused on the ground amplification during large events such as the 1985 subduction earthquake that occurred off coast of Michoacán. The purpose of this article is to analyze the behavior of site effects in the MVB zone based on records of shallow earthquakes (data not reported before) that occurred in the zone between 1998 and 2011. We present a general overview of site effects in the MVB, a classification of the stations in order to reduce the uncertainty in the data when obtaining attenuation parameters in future works, as well as some comparisons between the information presented here and that presented in previous studies.A regional evaluation of site effects and Fourier acceleration spectrum (FAS) shape was estimated based on 80 records of 22 shallow earthquakes within the MVB zone. Data of 25 stations were analyzed. Site effects were estimated by using the horizontal-to-vertical spectral ratio (HVSR) methodology. The results show that seismic waves are less amplified in the northeast sites of the MVB with respect to the rest of the zone and that it is possible to classify two groups of stations: (1) stations with negligible site amplification (NSA) and (2) stations with significant site amplification (SSA). Most of the sites in the first group showed small (< 3) amplifications while the second group showed amplifications ranging from 4 to 6.5 at frequencies of about 0.35, 0.75, 15 and 23 Hz. With these groups of stations, average levels of amplification were contrasted for the first time with those caused by the subduction zone earthquakes. With respect to the FAS shapes, most of them showed similarities at similar epicentral distances. Finally, some variations of site effects were found when compared to those obtained in previous studies on different seismicity regions. These variations were attributed to the location of the source.These aspects help to advance the understanding about the amplification behavior and of the expected seismic risk on central Mexico due to large earthquakes within the MVB seismogenic zone.

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The Aljibes half-graben—Active extension at the boundary between the trans-Mexican volcanic belt and the Basin and Range Province, Mexico

Cited by 62 publications

References 0 publications

Present state of knowledge and new geochemical constraints on the central part of the Mexican Volcanic Belt and comparison with the Central American Volcanic Arc in terms of near and far trench magmas

Present state of knowledge and new geochemical constraints on the central part of the Mexican Volcanic Belt and comparison with the Central American Volcanic Arc in terms of near and far trench magmas

Petrogénesis ígnea de la Faja Volcánica Transmexicana

On the behavior of site effects in central Mexico (the Mexican volcanic belt – MVB), based on records of shallow earthquakes that occurred in the zone between 1998 and 2011

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