Article
Geography, Physical
Pedro Lopez-Garcia, Denisse L. Argote, Charlie Beirnaert
QUATERNARY INTERNATIONAL
(2019)
Article
Geochemistry & Geophysics
Avto Goguitchaichvili, Esteban Hernandez-Quintero, Rafael Garcia, Ruben Cejudo, Gerardo Cifuentes, Miguel Cervantes
PHYSICS OF THE EARTH AND PLANETARY INTERIORS
(2020)
Article
Geochemistry & Geophysics
Martin Cardenas-Soto, David Escobedo-Zenil, Andres Tejero-Andrade, Muricio Nava-Flores, Martin Carlos Vidal-Garcia, Thulasiraman Natarajan
NEAR SURFACE GEOPHYSICS
(2020)
Article
Geosciences, Multidisciplinary
Xavier Bolos, Alexander Delgado-Torres, Gerardo Cifuentes, Jose Luis Macias, Mario Boijseauneau-Lopez, Claudio Tinoco, David Salguero
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Anthropology
Denisse L. Argote, Andres Tejero-Andrade, Martin Cardenas-Soto, Gerardo Cifuentes-Nava, Rene E. Chavez, Esteban Hernandez-Quintero, Alejandro Garcia-Serrano, Veronica Ortega
JOURNAL OF ARCHAEOLOGICAL SCIENCE
(2020)
Article
Geosciences, Multidisciplinary
Esteban Hernandez-Quintero, Avto Goguitchaichvili, Ruben Cejudo, Gerardo Cifuentes, Rafael Garcia, Miguel Cervantes
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2020)
Article
Geosciences, Multidisciplinary
Hector Lopez-Loera, Gerardo Cifuentes-Nava, Avto Goguitchaichvili, Miguel Cervantes, David Simon Velazquez, Jose Rosas-Elguera, Juan Morales, Hugo Delgado-Granados, Jaime Urrutia-Fucugauchi
Summary: A detailed aeromagnetic, field magnetometry and paleomagnetic survey was conducted on the most recent volcano on the American continent that emerged in 1943. Paleomagnetic measurements showed lower values compared to nearby geomagnetic observatories and the International Geomagnetic Reference Field model. The study aimed to model the internal structure, including deep sources not exclusively associated with the volcano and a more superficial area directly related to recent eruptions and the immediate geological basement.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2021)
Article
Archaeology
Pedro A. Lopez-Garcia, Cinthya Vidal-Aldana, Emmanuel A. Gomez-Ambriz, Denisse L. Argote
Summary: La Ferreria is an archaeological site in Durango, Mexico, believed to be the result of interaction between three different pre-Hispanic cultures. Excavations at the site unearthed 77 obsidian artifacts from at least four chemically differentiated sources, suggesting interaction between pre-Hispanic cultures in northwest Mexico.
JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS
(2021)
Article
Archaeology
Denisse L. Argote-Espino, Alberto Juarez-Osnaya, Alejandro Garcia-Serrano
Summary: The archaeological zone of Huexotla in the Eastern Mexico Basin was associated with the Acolhuacan lordship and Mexica domain in the Postclassical period. Recent explorations suggest that the structures in the site could be part of the Sacred Precinct of the city. Geophysical surveys and archaeological excavations confirmed the existence of previously undetected architectural patterns, supporting the hypothesis of a ceremonial enclosure.
ARCHAEOLOGICAL PROSPECTION
(2022)
Article
Geosciences, Multidisciplinary
Avto Goguitchaichvili, Esteban Hernandez-Quintero, Rafael Garcia-Ruiz, Vadim Kravchinsky, Ruben Cejudo, Gerardo Cifuentes
Summary: This study compiled data from 32 localities in Mexico to establish a model of geomagnetic field variation. The use of Geomagnetic Repeat Stations provided supplementary data, and methods such as agglomerative hierarchical grouping tree and Chebyshev metrics were utilized to mitigate measurement errors. The Bootstrap method and penalized cubic splines were employed to build the secular variation curve, showing similar trends to global model data.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2022)
Article
Archaeology
Pedro A. Lopez-Garcia, Denisse L. Argote
Summary: In this article, three variable selection methods based on Gaussian mixture models were compared to find the optimal subset for clustering. The importance of using appropriate transformations for compositional data was highlighted. The comparison demonstrated the models' ability to cluster data in multiple phases and showed the convenience of variable selection over 2D plots or including all variables in multivariate analysis. The selected informative variables were then used in the Databionic Swarm method, utilizing unsupervised machine learning techniques to identify natural chemical groups in high-dimensional data. The results were evaluated based on accuracy, demonstrating improved performance compared to traditional methods in the context of two archaeological glass datasets.
JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS
(2023)
Article
Archaeology
Pedro A. A. Lopez-Garcia, Victor H. Garcia-Gomez, Guillermo Acosta-Ochoa, Denisse L. L. Argote
Summary: In archaeometry, accurately assigning archaeological artefacts to their original geological sources is crucial for understanding ancient exploitation, trade routes, tool production, and goods movement. Mahalanobis distance is commonly used for this purpose, but it has limitations when certain theoretical assumptions are not met. To improve the accuracy of assignment, a semi-supervised classification technique based on finite mixture models was introduced. This method can handle labelled and unlabelled data and does not require a large sample size. The technique was validated in a controlled experiment and then applied to artefacts from the archaeological site of Xalasco, Tlaxcala, Mexico, revealing six supply sources for ancient dwellers.
Article
Computer Science, Information Systems
Pedro A. Lopez-Garcia, Denisse L. Argote, Michael C. Thrun
Article
Archaeology
Denisse L. Argote, Gloria Torres, Genoveva Hernandez-Padron, Veronica Ortega, Pedro A. Lopez-Garcia, Victor M. Castano
JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS
(2020)