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Chiapas Massif

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Series: GSA Special Papers
Published: 09 December 2021
DOI: 10.1130/2020.2546(17)
EISBN: 9780813795461
... ABSTRACT We generated low-temperature thermochronological data on crystalline rocks from the Chiapas Massif in southern Mexico to constrain the complex relationship among tectonics, exhumation, and sedimentation in the region. Our data show that the first recorded cooling event occurred at ca...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 1992
GSA Bulletin (1992) 104 (9): 1156–1168.
...ROBERTO S. MOLINA-GARZA; ROB VAN DER VOO; JAIME URRUTIA-FUCUGAUCHI Abstract We have analyzed 180 oriented samples of the batholithic complex and overlying red beds of the Chiapas Massif in southern Mexico for a paleomagnetic study. Both stepwise alternating-field and thermal demagnetization...
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40 Ar- 39 Ar data for Custepec dikes of the <span class="search-highlight">Chiapas</span> <span class="search-highlight">massif</span>. The symbols  t ...
Published: 01 February 2011
Figure 9. 40 Ar- 39 Ar data for Custepec dikes of the Chiapas massif. The symbols t p and t i correspond to plateau and integrated age, respectively. MSWD—mean square of weighted deviates.
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SUMMARY OF  40 Ar- 39 Ar FOR JURASSIC DIKES OF THE <span class="search-highlight">CHIAPAS</span> <span class="search-highlight">MASSIF</span>
Published: 01 February 2011
TABLE 5. SUMMARY OF 40 Ar- 39 Ar FOR JURASSIC DIKES OF THE CHIAPAS MASSIF
Series: GSA Special Papers
Published: 09 December 2021
DOI: 10.1130/2019.2546(16)
EISBN: 9780813795461
... of the basement footwall blocks by tectonic unroofing. The Tamaulipas Arch and the Jalapa–Santa Ana High were unroofed and cooled until ca. 160 Ma, whereas rocks from the Chiapas Massif were probably affected only until ca. 180 Ma. The thermochronological data suggest that the Tamaulipas Arch and the Chiapas...
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Journal Article
Journal: Geosphere
Published: 01 February 2011
Geosphere (2011) 7 (1): 145–158.
..., Jurassic andesitic dikes intruding rocks of the Permian Chiapas Massif yield a corrected mean of Dec = 335.0°, Inc = 5.0° (six sites). The mean directions are discordant with respect to expected North America reference directions, and indicate a counterclockwise rotation of 35° to 40°. Inclinations...
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Series: Geological Society, London, Special Publications
Published: 11 February 2021
DOI: 10.1144/SP504-2020-12
EISBN: 9781786209924
... Gulf of Mexico fringe. Traditionally, the felsic igneous and metamorphic components of the conglomerate were assumed to derive from the Permian basement of the nearby Chiapas Massif. However, zircon U–Pb dating of five Nanchital conglomerate clasts from the Chiapas Foldbelt as well as several igneous...
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Series: GSA Special Papers
Published: 28 December 2018
DOI: 10.1130/2018.2540(05)
EISBN: 9780813795409
... of Holocene sediments. Three upland source terrains were identified: Paleozoic crystalline basement of the Chiapas Massif; Mesozoic to Cenozoic siliciclastic and carbonate rocks of the Chiapas fold belt; and Cenozoic sedimentary rocks in the foothills of the fold belt. Holocene sediments from these source...
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Journal Article
Journal: Geosphere
Published: 01 February 2011
Geosphere (2011) 7 (1): 121–144.
...Figure 9. 40 Ar- 39 Ar data for Custepec dikes of the Chiapas massif. The symbols t p and t i correspond to plateau and integrated age, respectively. MSWD—mean square of weighted deviates. ...
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Series: GSA Special Papers
Published: 01 January 2005
DOI: 10.1130/0-8137-2393-0.457
.... The Maya Mountains plutons yield a paleopole that is statistically identical to that of the Chiapas Massif to the south. Both plutonic complexes exhibit somewhat dispersed dual polarity magnetization populations, suggesting that both were remagnetized at ca. 230 Ma. Importantly, the identical remanences...
Journal Article
Published: 01 March 2012
Journal of the Geological Society (2012) 169 (2): 143–155.
... edge of the Chiapas massif complex to the Chiapas Sierra. Horizontal displacement along the main strike-slip faults in the Chiapas Sierra has been indirectly estimated to be between 30 and 43 km during the last 6–5 Ma, implying 0.5–0.8 cm a −1 of lateral accommodation. These values suggest...
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Series: GSA Special Papers
Published: 09 December 2021
DOI: 10.1130/2021.2546(01)
EISBN: 9780813795461
... or the southern Chiapas Massif. Devonian basement has only been discovered in the Maya Mountains of Belize, and detrital zircon of such age seems to be characteristic of that source. A similar case can be made about Carboniferous zircon and the Acatlán Complex, Middle Pennsylvanian zircon and Juchatengo plutons...
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Series: GSA Special Papers
Published: 09 December 2021
DOI: 10.1130/2020.2546(15)
EISBN: 9780813795461
... (left step in the fault trace), or to local backarc extension behind the Chortís block just before it began to migrate eastward, in a basin we call the Chontal basin. The Chontal allochthon was thrust northward onto parautochthonous strata flanking the Mixtequita and Chiapas Massif basements. Chontal...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 June 2015
Lithosphere (2015) 7 (3): 257–274.
... chemistry intruded into and were deformed within the Tonalá mylonite belt in the middle to upper crust. The mylonite belt is a crustal-scale shear zone extending along the western margin of the Chiapas Massif for ∼150 km. Deformation is characterized by a dominantly subhorizontal lineation and subvertical...
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Journal Article
Journal: Geology
Published: 01 June 1978
Geology (1978) 6 (6): 328–332.
...Burke Burkart Abstract Polochic fault is seen on LANDSAT imagery to continue its westward path from northwestern Guatemala across the Chiapas massif to the Pacific coastal plain. The fault has had 132 ± 5 km of left-lateral displacement that is recorded in the offset of Cenozoic fold and thrust...
Series: GSA Special Papers
Published: 09 December 2021
DOI: 10.1130/2020.2546(02)
EISBN: 9780813795461
... they intrude. This phase of magmatism is likely related to coeval granitoids in the Oaxaca area and Chiapas Massif. We interpret it to reflect late- to postcollisional magmatism along the margin of Gondwana following the assembly of Pangea. Finally, the third phase of magmatism includes Early–Middle Jurassic...
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Series: GSA Special Papers
Published: 09 December 2021
DOI: 10.1130/2020.2546(06)
EISBN: 9780813795461
... underlying Middle Jurassic synrift successions, and it is present in La Boca and Cahuasas formations in the Sierra Madre Oriental and La Silla Formation north of the Chiapas Massif. These units have a similar age range between ca. 195 and 170 Ma. Arc magmatism in eastern Mexico is correlated...
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Series: Geological Society, London, Special Publications
Published: 11 February 2021
DOI: 10.1144/SP504-2019-243
EISBN: 9781786209924
... and asthenosphere replaced the flat slab. The crust rebounded, creating an ensuing period of massive erosion which peaked around 20 Ma. Southern Mexico was relatively quiet until rapid uplift began in Oaxaca in late Oligocene–early Miocene time. Uplift progressed eastwards to the Chiapas Massif in the late Miocene...
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Series: GCSSEPM
Published: 01 December 2013
DOI: 10.5724/gcs.03.23.0135
EISBN: 978-0-9836096-7-4
... significant CCW rotation of Yucatán Block. This Stage 2 rotation was accommodated by transform motion of Yucatan/Chiapas Massif along the foot of the very narrow eastern Mexican margin, but transform motion stopped once the Central Gulf Spreading Ridge passed any point along this margin. Thus, the crustal...
Series: AAPG Memoir
Published: 01 January 2003
DOI: 10.1306/M79877C29
EISBN: 9781629810546
... to correlate gravity anomalies with known geologic/tectonic features and to emphasize possible previously unknown geologic features in the upper crust. These include granitic rocks in central Guatemala that are related to the Chiapas Massif in southeastern Mexico, basement uplifts under the carbonate platform...
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