RT Journal Article
T1 Characterization of the W ores at the Santa Comba mine, NW Spain
A1 Pita Díaz, Candela
A1 Tornos Arroyo, Fernando
A1 Crespo Feo, María Elena
AB The NW of the Iberian Peninsula is characterized for hosting W-Sn deposits related to peraluminous variscan granites. One of them is the Santa Comba mine, located 45 km to the northwest of Santiago de Compostela, Spain. The mine is set in a poly-intrusive epizonal complex which fits the Endogranite-Stockscheider-Exogranite model (Nesen, 1979). This deposit features two types of mineralization containing cassiterite (SnO2), wolframite (FeMnWO3), and scheelite (CaWO4): a low tonnage high-grade mineralization concentrated in the quartz vein system that crosscuts the whole complex, and high tonnage low-grade disseminated mineralization hosted in the youngest intrusion (endogranite). The disseminated mineralization is related to zones of pervasive high-temperature hydrothermal alteration and stockwork-like systems, sometimes sharing features with porphyry-like deposits. A unique feature of this deposit is that the disseminated ore is enriched in wolframite but from a certain depth becomes enriched in scheelite. In this study, we applied microprobe analysis (EPMA), Raman spectroscopy, and a textural study through the petrographic microscope to identify and examine the characteristics of each ore.
PB Sociedad Española de Mineralogía
SN 2659-9864
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/101828
UL https://hdl.handle.net/20.500.14352/101828
LA eng
NO Pita Díaz, Candela, et al. Characterization of the W Ores at the Santa Comba Mine, NW Spain. 2023. docta.ucm.es, https://hdl.handle.net/20.500.14352/101828.
DS Docta Complutense
RD 16 dic 2025