Redbeds of the Huayacocotla anticlinorium, state of Hidalgo, east-central Mexico

Ochoa-Camarillo, H.; Buitrón-Sánchez, Blanca Estela; Silva‐Pineda, Alicia

doi:10.1130/0-8137-2340-x.59

Cited by 10 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We consider that initial collapse began farthest from the pole of rotation in south Texas and Campeche, and that initial collapse began a conveyor belt that transferred sea water into the western palaeo‐Gulf before it started farther east. This is fitting with idea that the marine connection to the global sea was from the Pacific, across the Huayacocotla Basin where the Callovian Tepexic Formation (marine carbonate and shale) occurs (Ochoa‐Camarillo et al ., ). Thus, we predict the base of salt should young eastwards along strike, as well as northwards as collapse created marginal onlap.…”

Section: Gulf Of Mexico Case Studymentioning

confidence: 97%

Rapid outer marginal collapse at the rift to drift transition of passive margin evolution, with a Gulf of Mexico case study

2014

View full text Add to dashboard Cite

Interpretation of long-offset 2D depth-imaged seismic data suggests that outer continental margins collapse and tilt basinward rapidly as rifting yields to seafloor spreading and thermal subsidence of the margin. This collapse post-dates rifting and stretching of the crust, but occurs roughly ten times faster than thermal subsidence of young oceanic crust, and thus is tectonic and pre-dates the 'drift stage'. We term this middle stage of margin development 'outer margin collapse', and it accords with the exhumation stage of other authors. Outer continental margins, already thinned by rifting processes, become hanging walls of crustal-scale half grabens associated with landward-dipping shear zones and zones of low-shear strength magma at the base of the thinned crust. The footwalls of the shear zones comprise serpentinized sub-continental mantle that commonly becomes exhumed from beneath the embrittled continental margin. At magma-poor margins, outer continental margins collapse and tilt basinward to depths of about 3 km subsea at the continent-ocean transition, often deeper than the adjacent oceanic crust (accreted later between 2 and 3 km). We use the term 'collapse' because of the apparent rapidity of deepening (<3 Myr). Rapid salt deposition, clastic sedimentation (deltaic), or magmatism (magmatic margins) may accompany collapse, with salt thicknesses reaching 5 km and volcanic piles 1525 km. This mechanism of rapid salt deposition allows mega-salt basins to be deposited on end-rift unconformities at global sea level, as opposed to deep, air-filled sub-sea depressions. Outer marginal collapse is 'post-rift' from the perspective of faulting in the continental crust, but of tectonic, not of thermal, origin. Although this appears to be a global process, the Gulf of Mexico is an excellent example because regional stratigraphic and structural relations indicate that the pre-salt rift basin was filled to sea level by syn-rift strata, which helps to calibrate the rate and magnitude of collapse. We examine the role of outer marginal detachments in the formation of East India, southern Brazil and the Gulf of Mexico, and how outer marginal collapse can migrate diachronously along strike, much like the onset of seafloor spreading. We suggest that backstripping estimates of lithospheric thinning (beta factor) at outer continental margins may be excessive because they probably attribute marginal collapse to thermal subsidence.

show abstract

Section: Gulf Of Mexico Case Studymentioning

confidence: 97%

Rapid outer marginal collapse at the rift to drift transition of passive margin evolution, with a Gulf of Mexico case study

2014

View full text Add to dashboard Cite

show abstract

“…From the Huizachal Valley in Tamaulipas southward into the state of Hidalgo, Huizachal, or the equivalent Cahuasas Formation, has been mapped adjacent to crystalline basement rocks (for summary and references, see Ochoa-Camarillo et al, 1999;Fig. 50).…”

Section: Ages Geologic Setting and Signifi Cance Of Jurassic Stratamentioning

confidence: 99%

Evolution of the Caribbean plate and origin of the Gulf of Mexico in light of plate motions accommodated by strike-slip faulting

Lidiak¹,

Anderson²

Geological Society of America Special Papers

View full text Add to dashboard Cite

Restoration of plate consumption recorded by Caribbean arc volcanism reveals probable plate movements that led to the emplacement of the proto-Caribbean plate into the present Caribbean region and provided the space necessary to accommodate the rotation of the Yucatán Peninsula concurrent with the opening of the Gulf of Mexico between ca. 170 Ma and 150 Ma. Fault movement of the Yucatán, caused by edge-driven processes, resulted in counterclockwise rotation, as shown by paleomagnetic studies. Restoration of Yucatán rotation necessitates the presence of a paleogeography different from the current distribution of the Greater and Lesser Antilles. During emplacement of the Caribbean plate region, four magmatic belts with distinct ages and different geochemical characteristics are recorded by exposures on islands of the Antilles. The belts distinguish the following segments of Cretaceous and Tertiary magmatic arcs: (1) an Early Cretaceous geochemically primitive islandarc tholeiite suite (PIA/IAT) typically containing distinctive dacite and rhyodacite that formed between Hauterivian and early Albian time (ca. 135-110 Ma); (2) after a hiatus at ca. 105 Ma of ~10 m.y., a voluminous, more-extensive calc-alkaline magmatic suite, consisting mainly of basaltic andesite, andesite, and locally important dacite, developed beginning in the Cenomanian and continuing into the Campanian (ca. 95-70 Ma); (3) a second (calc-alkaline) suite, spatially restricted relative to the older belts, that consists of volcanic and intrusive rocks, which formed between the early Paleocene and the middle Eocene (ca. 60-45 Ma); and (4) a currently active calc-alkaline suite in the Lesser Antilles typically composed of a basalt-andesitedacite series that began to develop in the Eocene (ca. 45 Ma). Plate convergence took place along northeastward-or eastward-trending axes during the formation of the Caribbean, which is outlined by the Antillean islands and Central and South America. Movements were facilitated by strike-slip faults, commonly trench-trench transforms, as subducting crust was consumed. Restoration of apparent displacements of at least several hundreds of thousands of kilometers along the inferred lateral faults of the Eocene and younger Cayman set separating Puerto Rico, Hispaniola, and the Oriente Province of southeastern Cuba brings together Eocene volcanic rocks revealing a magmatic domain along the paleo-south-southwestern Lidiak, E.G., and Anderson, T.H., Evolution of the Caribbean plate and origin of the Gulf of Mexico in light of plate motions accommodated by strike-slip faulting, in

show abstract

“…The general stratigraphy of the study area is shown in Table 1 (Morán-Zenteno, 1994). Structurally, the Molango region belongs to the middle portion of the Huayacocotla Anticlinorium, which forms part of the Sierra Madre Oriental (Campa and Coney, 1983;Ochoa-Camarillo et al, 1999). Long.…”

Section: Geological Settingmentioning

confidence: 99%

Geochemistry of the Jurassic and Upper Cretaceous shales from the Molango Region, Hidalgo, eastern Mexico: Implications for source-area weathering, provenance, and tectonic setting

Armstrong‐Altrin

Nagarajan

Madhavaraju

et al. 2013

Comptes Rendus. Géoscience

177

View full text Add to dashboard Cite

The weathering conditions, provenance, and tectonic setting of shales from the Pimienta (PF; upper Jurassic), Huayacocotla (HF; lower Jurassic), and Méndez Formations (MF; upper Cretaceous) of the Molango Region, Hidalgo, Mexico have been studied for the first time using mineralogy, major, and trace element data. The X-ray diffraction (XRD) data reveals that the shales consist mostly of illite and muscovite clay minerals. The SEM-EDS study indicates that the PF and HF shales are rich in phosphate minerals and MF shales are abundant in zircon mineral. The chemical index of alteration (CIA  59 to 93) and their position in the A-CN-K (Al 2 O 3-CaO + Na 2 O-K 2 O) ternary diagram point to moderate to intense weathering in the source region. The La/Sc, Th/Sc, and La/Co ratios are more enriched and the Cr/Th and Eu/Eu * ratios are more depleted in MF shales than in the PF and HF shales, indicating derivation from a more felsic source than the PF and HF shales. Similarly, the average Zr content in MF shales (475 ± 185) is higher than in PF (133.9 ± 9.3) and HF shales (139.6 ± 18.2), which suggests a more enriched concentration of zircon mineral among the MF than the other shales (F calc = 32.9820669 and (F crit) 99% = 6.48949, where F calc > (F crit) 99% indicates that data populations are significantly different at 99% confidence level). The LREE enrichment, flat HREE, and negative Eu anomalies in chondrite-normalized plots are attributed to felsic source rock characteristics for the three groups of shales. The trace element concentrations point to an extensional setting (passive margin) for the Jurassic shales (PF and HF) and an active margin setting for the Cretaceous shales (MF).

show abstract

Redbeds of the Huayacocotla anticlinorium, state of Hidalgo, east-central Mexico

Cited by 10 publications

References 3 publications

Rapid outer marginal collapse at the rift to drift transition of passive margin evolution, with a Gulf of Mexico case study

Rapid outer marginal collapse at the rift to drift transition of passive margin evolution, with a Gulf of Mexico case study

Evolution of the Caribbean plate and origin of the Gulf of Mexico in light of plate motions accommodated by strike-slip faulting

Geochemistry of the Jurassic and Upper Cretaceous shales from the Molango Region, Hidalgo, eastern Mexico: Implications for source-area weathering, provenance, and tectonic setting

Contact Info

Product

Resources

About