RT Journal Article
T1 Geology and gravity modeling of the Logrosán Sn-(W) ore deposits (Central Iberian Zone, Spain)
A1 Chicharro Álvarez, Eva
A1 Martín Crespo, Tomás
A1 Gómez Ortiz, David
A1 López García, José Ángel
A1 Oyarzun, Roberto
A1 Villaseca González, Carlos
AB 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.
PB Elsevier Science B.V., Amsterdam
SN 0169-1368
YR 2015
FD 2015-03
LK https://hdl.handle.net/20.500.14352/23837
UL https://hdl.handle.net/20.500.14352/23837
LA eng
NO Ministerio de Economía y Competitividad  (MINECO)
NO Universidad Complutense de Madrid
DS Docta Complutense
RD 3 may 2024