Geology and gravity modeling of the Logrosán Sn-(W) ore deposits (Central Iberian Zone, Spain)


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Chicharro Álvarez, Eva and Martín Crespo, Tomás and Gómez Ortiz, David and López García, José Ángel and Oyarzun Muñoz, Roberto and Villaseca González, Carlos (2015) Geology and gravity modeling of the Logrosán Sn-(W) ore deposits (Central Iberian Zone, Spain). Ore geology reviews, 65 (1). pp. 297-304. ISSN 0169-1368

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Abstract Sn–(W) granite-hosted ore deposits are characterized by the occurrence of pegmatites, stockworks and quartz veins within a granitic cupola and its surrounding host-rocks. A regional exploration tool for these deposits consists of targeting syn- to late-orogenic specialized S-type hidden shallow granites by geophysical methods. However, gravity as a tool for “brownfield type” exploration in a mature granite-related ore setting has not been widely used. The Logrosan area (Central Iberian Zone) provides a perfect case scenario with Sn–W endo- and exogranitic ore deposits within a relatively small-scale realm. We suggest that the understanding of the subsurface of the Logrosan area provides a key tool to develop a more comprehensive geological and metallogenic model for the ore deposits. In addition, a better explanation for the mineral evolution and the Sn–W ore precipitation can be achieved, by comparing the chemical and textural features of ores from several of the Logrosan deposits. Field gravity and geologic data allowed the modeling of the hidden granite bodies. Combining this information with detailed mineralogical, geochemical data and ore deposit modeling has allowed a definition of targets for probable new Sn–(W) deposits, all within a few kilometers of the main intrusion center.

Item Type:Article
Uncontrolled Keywords:Granite-related ore deposits; Gravity modeling; Sn–(W); Central Iberian Zone
Subjects:Sciences > Geology > Mineralogy
Sciences > Geology > Petrology
ID Code:62434
Deposited On:07 Oct 2020 13:56
Last Modified:07 Oct 2020 14:04

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