Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Rafael López-Martínez"'
Autor:
Rafael López-Martínez, Fernando Gázquez, José M. Calaforra, Philippe Audra, Jean Y. Bigot, Teresa Pi Puig, Rocío J. Alcántara-Hernández, Ángel Navarro, Philippe Crochet, Liliana Corona Martínez, Raquel Daza Brunet
Publikováno v:
International Journal of Speleology, Vol 49, Iss 3, Pp 173-186 (2020)
Folia are speleothems that resemble bells, inverted cups, or bracket fungi, and whose origins are still controversial. Cenote Zapote (an underwater cave) in the Yucatán Peninsula (México), is home to some of the largest folia reported to date. Thes
Externí odkaz:
https://doaj.org/article/c33a5c5bcb454e29872364108695fcf3
Autor:
María del Pilar Aliaga-Campuzano, Rafael López-Martínez, Pablo Dávila-Harris, Ramón Espinasa-Pereña, Adriana Espino del Castillo, J.P. Bernal
Publikováno v:
International Journal of Speleology, Vol 46, Iss 3, Pp 331-343 (2017)
Las Karmidas Cave (Puebla State, Mexico) is an unusual type of pseudokarstic cavity generated by piping and erosive processes within the contact of a diamicton and an overlying Quaternary ignimbrite. Morphological evidence suggests that the cave was
Externí odkaz:
https://doaj.org/article/69005b5d210b43fbaf34527ceab0a13f
Autor:
Rafael López-Martínez, Ricardo Barragán, Hugo Beraldi-Campesi, Tomáš Lánczos, Juan R. Vidal-Romaní, Roman Aubrecht, Juan P. Bernal Uruchurtu, Teresa Pi Puig, Ramón Espinasa-Pereña
Publikováno v:
International Journal of Speleology, Vol 45, Iss 2, Pp 111-122 (2016)
Siliceous, opal-A speleothems of the Chimalacatepec lava tube system in central Mexico are characterized here for the first time. Morphologically, they can be classified into cylindrical and planar, and display a wide array of shapes, inner textures,
Externí odkaz:
https://doaj.org/article/caa6292f53044a98914307b14a728db7
Autor:
Jaime Díaz-Ortega, Birgit Terhorst, Héctor Cabadas-Báez, Yusnier Diaz-Hernández, Rafael López-Martínez, Daisy Valera-Fernández, Sergey Sedov, Sumiko Tsukamoto, Elizabeth Solleiro-Rebolledo
Publikováno v:
Quaternary International. 618:70-86
The Gulf of Mexico coastal plain contains one of the largest dune systems in Mexico. These dunes and particularly their paleosols contain valuable paleoenvironmental information, however this aspect has been poorly studied. Here, we present the preli
Autor:
Luisa I. Falcón, Rafael López-Martínez, Itzel Becerra-Absalón, Gustavo Montejano, Bernardo Águila, Rocio J. Alcántara-Hernández
Publikováno v:
European Journal of Phycology. 56:428-443
We analysed and characterized the cyanobacteria in microbialites of Alchichica crater lake over a depth gradient, from 3 to 30 m. A polyphasic approach was followed using morphometry, optical and e...
Autor:
Philippe Audra, Fernando Gázquez, Rocio J. Alcántara-Hernández, José M. Calaforra, Jean Y. Bigot, Liliana Corona Martínez, Philippe Crochet, Rafael López-Martínez, Raquel Daza Brunet, Teresa Pi Puig, Ángel Navarro
Publikováno v:
International Journal of Speleology, Vol 49, Iss 3, Pp 173-186 (2020)
Folia are speleothems that resemble bells, inverted cups, or bracket fungi, and whose origins are still controversial. Cenote Zapote (an underwater cave) in the Yucatán Peninsula (México), is home to some of the largest folia reported to date. Thes
Autor:
Alejandro Terrazas-Mata, Luis Alberto Martos‐López, Bruno Chávez-Vergara, Elizabeth Solleiro-Rebolledo, Agustín Merino, Adriana Velázquez‐Morlet, Octavio del Río‐Lara, Felipe A. Trabanino García, Rafael López-Martínez, Jaime Díaz-Ortega
Publikováno v:
Geoarchaeology. 35:819-833
An integrative methodology, including controlled heating experiments, petrography, taphonomy, systematics of charcoal fragments, solid-state 13C nuclear magnetic resonance (NMR) spectroscopy, differential scanning calorimetry (DSC), and 14C dating, a
Autor:
Daisy Valera-Fernández, Elizabeth Solleiro-Rebolledo, Rafael López-Martínez, Sergey Sedov, Sara Griset, Héctor Cabadas-Báez
Publikováno v:
SSRN Electronic Journal.
Autor:
Hermenegildo Barceinas, Elizabeth Solleiro-Rebolledo, Thierry Calmus, Eliuth Maribel Romero-Lázaro, Bruno Chávez-Vergara, Georgina Ibarra-Arzave, Teresa Pi-Puig, Sergey Sedov, Rafael López-Martínez
Publikováno v:
Universidad Nacional Autónoma de México
UNAM
Redalyc-UNAM
Revista Mexicana de Ciencias Geológicas (México) Num.3 Vol.36
UNAM
Redalyc-UNAM
Revista Mexicana de Ciencias Geológicas (México) Num.3 Vol.36
En este trabajo se presenta un análisis integral del registro sedimentario y paleopedológico en una secuencia edafo-sedimentaria encontrada en la terraza baja del arroyo Tinajas, estado de Sonora. El objetivo de esta investigación es establecer lo
Autor:
Pável U. Martínez-Pabello, Beatriz Menéndez Iglesias, Rafael López Martínez, Teresa Pi-Puig, Jesús Solé, Aldo Izaguirre Pompa, Sergey Sedov
Publikováno v:
Boletín de la Sociedad Geológica Mexicana. 74:A100622
Rock varnish is a thin layer (1-40 microns every 1000 years), dark-reddish in color (30% Mn and Fe oxides, 70% clay minerals), that coats a rock surfaces in the northern Mexican deserts. This accretion has been used as a canvas by ancestral human gro