Revista Mexicana de Ciencias Geológicas (RMCG) is a quarterly, peer reviewed, online journal that publishes original research papers, dealing with any discipline of the Earth Sciences, and with emphasis on studies from Ibero-America. Papers are published in diamond open access and are thus free of charge for readers and authors (APC free), and authors retain the copyright to their work. RMCG is co-edited by Instituto de Geociencias, Instituto de Geología, and Facultad de Ingeniería of the…
This article presents a novel methodology for geological unit modeling, inspired by the theoretical conception of implicit geological modeling, but extending its capacity to incorporate covariates through a supervised learning method such as multi-layer perceptron. Based on a signed distance function applied to each drillhole sample, an auxiliary variable is generated which, together with spatial…
Carbon capture and storage methods are commonly accepted as an essencial way to mitigate atmospheric CO 2 concentrations. Despite being a significant petroleum producer, Mexico is committed to combating climate change encouraging the use of carbon capture and storage and enhance oil recovery technology. In this research, the storage capacity of CO 2 in the reservoir of a deep saline aquifer…
The names Novillo and Olvido were proposed as formations for successions of sedimentary rocks (as lithostratigraphic units) of Jurassic age. The Stratigraphic Lexicon of Nomenclature of Mexico recognizes the name Novillo to designate a Precambrian lithodemic unit formed of gneiss; however, it does not record the name for the Jurassic sedimentary unit, citing the nomenclature as a synonym. The same…
Cacahuamilpa Cave, along with several adjacent inactive systems and two lower active river caves, originated in response to Pleistocene volcanic processes associated with Nevado de Toluca, located approximately 50 km to the north. A catastrophic sector collapse of the volcanic edifice generated a large debris avalanche that evolved into the Pilcaya debris flow, which was channeled southward along…
Recent investigations at Sistema Calera Cave (21°53’49”N, 98°55’52”W, 103 m a.s.l.), located in the Sierra de El Abra, San Luis Potosí, northeastern Mexico, have established the site as one of exceptional paleontological importance due to its remarkably diverse assemblage of fossilized vertebrate remains. Given the underwater depositional context, which likely contributed to collagen degradation,…
Phytoliths are important plant microfossils, but also relevant components of the clastic fraction of the soils. The phytolith pool present in soils not only depends on plant phytolith production but also on taphonomical soil processes. In the southeastern Pampean Plains, Argentina, where typical Argiudolls dominate, intense agricultural and livestock activities are carried on. These managements…
The upper Sonora River basin in northwestern Mexico is a region with active and historical mining, as well as vigorous agricultural and livestock activity. The Buenavista del Cobre mine spill that occurred in 2014 raised major concerns among residents, including food safety. In this study, potentially toxic elements (Al, As, Ba, Cd, Cr, Cu, Fe, Ni, Pb, Zn, and Tl) and Pb isotope ratios were…
The La Colorada mine is characterized by a low–sulfidation epithermal Au–Ag vein system hosted within Paleozoic siliciclastic rocks and a Late Cretaceous (~75–69 Ma) volcano–plutonic complex. While this Au–Ag mineralization has been intermittently mined since 1740, the exact timing of its emplacement has remained unconstrained. Existing Ar–Ar geochronology on alteration minerals indicates an…
