Palenology studies in Lower to Middle Jurassic red beds of northeastern Mexico

Abstract

In the Mesa Central and Sierra Madre Oriental provinces in northeastern Mexico, Middle to Upper Jurassic red beds preserved palynomorph that jointly with sedimentological, petrographic and geochemical features, allow to interpret paleo-climates and possible ages that agree with maximal depositional ages previously determined by detrital zircon geochronology of the same units. Our goal is to conform a collection of palynological descriptions of the Lower to Middle Jurassic red beds in the region as well as isotopic data of δ18O and δ13C that provide support to the yet preliminary paleoclimatic and paleo-environmental interpretations. The studied areas in the Mesa Central province are the Sierras de Catorce and Charcas in the state of San Luis Potosí, as well as Sierra de Salinas, in Zacatecas. In the Sierra Madre Oriental some outcropping Lower to Middle Jurassic successions were also sampled in the Huizachal-Peregrina Anticlinorium, west of Ciudad Victoria and Miquihuana-Bustamante areas in Tamaulipas as well as Aramberri, Sierra de Pablillo and San Marcos, Nuevo León.

AAPG Datapages/Search and Discovery Article #90369 © 2020 AAPG Hedberg Conference, Geology and Hydrocarbon Potential of the Circum-Gulf of Mexico Pre-salt Section, Mexico City, Mexico, February 4-6, 2020