Potential field signature (gravity and magnetism) of the Otero de Herreros deposit (Segovia). Comparison with existing data and models
DOI:
https://doi.org/10.55407/geogaceta99822Keywords:
gravity anomaly, polymetalic deposit, magnetic anomaly, Otero de HerrerosAbstract
Magnetic and gravity data have been acquired at the polymetallic deposit of Cerro de Almadenes (Otero de Herreros, Segovia), using modern equipment and techniques, resulting in new anomaly maps that are compared with existing anomaly maps. The acquisition of this new data provides additional criteria to control the geometry of the mineralized layers, partly constraining their width and depth through forward 2D modeling techniques. The new datasets and models are not influenced by surface magnetic noise or by factors related to data processing, as previous ones. The resulting magnetic anomaly allows to constrain the geometry of the mineralized M-layer while the gravity anomaly indicates the interval where the ore is concentrated. Recent methodological and instrumental advances in potential field data acquisition techniques has enabled us to obtain better data and more constrained anomaly maps, which can be modeled with more detailed techniques.
References
Díez Balda, M.A., Vegas, R. y González Lodeiro, F. (1990). Central Iberian Zone, Autochthonous Sequences. In: Pre-Mesozoic Geology of Iberia (Dallmeyer, R.D. y García Martínez, E., Eds.). Springer-verlag, Berlin, 172-188.
Jiménez Borrego, R. (2020). Estudio de la mineralización en el yacimiento de Otero de Herreros (Segovia) a partir de la modelización de datos de campos potenciales existentes. Trabajo de Fin de Grado, Universidad de Salamanca, 39 p.
Martínez Catalán, J.R. (2011). The Central Iberian arc, an orocline centered in the Iberian Massif and some implications for the Variscan belt. Int. J. Earth Sci. 101, 1299-1314. https://doi.org/10.1007/s00531-011-0715-6
Martínez Catalán, J.R. y Gómez Barreiro, J. (2017). Proyecto Otero: Análisis estructural de las rocas en el skarn polimetálico Cu-Sn- Zn-Ag-W. Universidad de Salamanca, 40 p.
Tornos Arroyo, F. (1989). Los skarns y mineralizaciones asociadas del Sistema Central Español. Modelo de caracterización petrológica, geoquímica y metalogénica. Tesis doctoral, Universidad Complutense, Madrid, 496 p.
Downloads
Published
How to Cite
Issue
Section
License
Until the year 2023 the author assigned the copyright to the Sociedad Geológica de España, but from 2024 the author retains the copyright and grants the Sociedad Geológica de España the right of first publication and non-exclusive distribution of each article in all current or future media, while transferring, also non-exclusively, the commercial rights for the distribution of the printed version of Geogaceta. On the other hand, the articles, from the year 2023, are available simultaneously with their publication, under the Creative Commons CC BY-NC-SA 4.0 license, which allows copying, transforming the work, but if any transformation is distributed, the new work must be distributed under the same license, and never for commercial purposes, while acknowledging the authorship and original publication in GEOGACETA, so that the only role of copyright is to give authors control over the integrity of their works and the right to be properly acknowledged and cited.