Vol. 40 No. 2 (2023)

Vol. 40 No. 2 (2023)

Published August 1, 2023
https://doi.org/10.22201/cgeo.20072902e.2023.2
Revista Mexicana de Ciencias Geológicas, Vol. 40, Núm. 2, agosto 2023

Cover image:
Comparison of the humerus distal end of two bears: a fossil Agriotherium and a recent Ursus Maritimus. On left, Agriotherium (MPGJ 5676) from Juchipila basin, Zacatecas Mexico, early-late Hemphillian age; the medial epicondyle is convex, the external epicondylar ridge has a thick rim with two deep grooves in the middle. On right, Ursus maritimus with a long hook-shaped medial condyle important in retaining prey for feeding. The lateral epicondylar ridge is concave deep throughout its length. See the related paper by Carranza-Castañeda and Wang in this issue.

Covers

Covers, Revista Mexicana de Ciencias Geológicas, vol. 40, num. 2, August 2023
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Regular Papers

First report of residual latent combustion in the Quinceo volcano, Morelia, Michoacán (Mexico)
Ruth Esther Villanueva-Estrada, Isabel Pérez-Martínez, Isabel Israde-Alcántara, Norma Susana Pano-Farías, Teodoro Carlón-Allende, Edgar Zamudio-Alejandre
98-113
https://doi.org/10.22201/cgeo.20072902e.2023.2.1725
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Lahar deposits in the Cutio river subcatchment; Pico de Tancítaro volcano, Michoacán, Mexico
Felipe García-Tenorio, Rosario Vázquez, Fabiola Mendiola, Teodoro Carlón-Allende
114-126
https://doi.org/10.22201/cgeo.20072902e.2023.2.1735
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U-Pb geochronology, and geochemistry of the Paleocene arc vulcanism of the Tetelcingo Formation, Chilpancingo-Tixtla area, Guerrero (south of Mexico)
Alicia Sarmiento-Villagrana, Sandra Magaly Ortíz-Degante, Oscar Talavera-Mendoza, Yam Zul Ernesto Ocampo-Díaz
127-141
https://doi.org/10.22201/cgeo.20072902e.2023.2.1721
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Assessment of contamination level of watercourses and streambed sediments downstream the Capillitas Mine, Catamarca, Argentina
Margarita do Campo, María Fernanda Valenzuela, Leonardo Ferro
142-151
https://doi.org/10.22201/cgeo.20072902e.2023.2.1727
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The Ahualulco volcanic complex: Geochemistry and temporal evolution of Oligocene felsic volcanism in the eastern Mesa Central, San Luis Potosí, Mexico
Carolina Isabel Latorre-Correa, Pablo Dávila-Harris, Alfredo Aguillón-Robles, Margarito Tristán-González
152-173
https://doi.org/10.22201/cgeo.20072902e.2023.2.1730
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Mapping the mineralogy in the Oxia Planum and Mawrth Vallis ExoMars landing sites – implications for aqueous alteration and paleoenvironmental evolution
Karen Itzel Reyes Ayala, Primož Kajdič, Jaime Urrutia Fucugauchi, Jesús Martínez Frías, Jorge L. Vago, Héctor Durand Manterola, Enrique Alejandro González Torres
174-186
https://doi.org/10.22201/cgeo.20072902e.2023.2.1744
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SPECIAL SECTION "20 years of the Centro de Geociencias, UNAM"

The geology and tectonic evolution of the Mesa Central of Mexico during the Cenozoic era: a review: Geology and tectonics of the Mesa Central
Angel Francisco Nieto-Samaniego, Alexis Del Pilar-Martínez, Ana Milena Suárez-Arias, Edgar Angeles-Moreno, Susana Alicia Alaniz-Álvarez, Gilles Levresse, Shunshan Xu, María de Jesús Paulina Olmos-Moya, Javier Antonio Báez-López
187-213
https://doi.org/10.22201/cgeo.20072902e.2023.2.1736
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First record of a complete humerus of Agriotherium (mammalia-ursidae) from the early-late Hemphillian of Zacatecas, Mexico
Oscar Carranza-Castañeda, Xiaoming Wang
214-226
https://doi.org/10.22201/cgeo.20072902e.2023.2.1738
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