Artículo

Geochemistry of rocks associated with the Cretaceous paleokarst in the Actopan platform: paleohydrologic evolution

Carrasco-velázquez, Baldomero E.; Morales-puente, Pedro; Cienfuegos, Edith; Lozano-santacruz, Rufino

Instituto de Geología, UNAM, publicado en Revista Mexicana de Ciencias Geológicas y cosechado de y cosechado de Revistas UNAM

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Procedencia del contenido

Cita

Carrasco-velázquez, Baldomero E., et al. (2004). Geochemistry of rocks associated with the Cretaceous paleokarst in the Actopan platform: paleohydrologic evolution. Revista Mexicana de Ciencias Geológicas; Vol 21 No 3, 2004; 382-396. Recuperado de https://repositorio.unam.mx/contenidos/4122829

Descripción del recurso

Autor(es)
Carrasco-velázquez, Baldomero E.; Morales-puente, Pedro; Cienfuegos, Edith; Lozano-santacruz, Rufino
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Geochemistry of rocks associated with the Cretaceous paleokarst in the Actopan platform: paleohydrologic evolution
Fecha
2018-05-09
Resumen
Fronts of the Sierra Madre Oriental expose Cretaceous rocks in the Actopan Platform allowing the study of the paleokarst developed by the exposure of the rocks in the Albian. The development and position of the paleovadose and paleophreatic zones are studied by geochemistry and petrology. The petrologic evidence in the outcrops show dissolutional, depositional, fracturing, brecciation and collapse features extending over the platform. The transgressive cover of the paleokarst does not show any physical (unconformity) or petrologic (conglomerate or breccia) evidence to delineate the contact with the paleokarst. The ;isotopic ;composition ;(δ18OVPDB and δ13CVPDB) ;and ;cation ;chemistry ;of ;the ;paleometeoric ;water ;together with the petrologic evidence of the paleokarstic breccias all support the identification of the paleovadose and paleophreatic zones and the limits to those zones. Delineation of paleokarst and of the overlying sedimentary cover can be based entirely on their distinctive geochemical signatures. Cretaceous paleokarstic rocks are important for the prospection of aquifer, petroleum and mineral resources, as well as in civil engineering projects, like dams. ;
Idioma
spa
ISSN
ISSN electrónico: 2007-2902; ISSN impreso: 1026-8774

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