The correlation of polycrystalline texture and magnetic anisotropy: Refining geophysical exploration for Strategic Ore deposits.
Shear zones are recognized as essential pieces of that architecture, representing exploration targets worldwide for strategic resources like Sn-W-Au [1, 2, 3]. The interpretation of large-scale geophysical anomalies (e.g. seismic, magnetic, gravimetric), both in structural and lithological terms, during mineral exploration in complex orogenic contexts has to rely on a quantitative knowledge of the petrophysical properties of shear zones. When minerals are deformed in a shear zone texture often develops. Therefore the aggregate of minerals in deformed rocks will show macroscopic anisotropy and potentially become, for example, a highly reflective volume in the lithosphere [4], give rise to a magnetic anomaly or both [5]. Interestingly, the correlation of deformation flow vectors, texture and elastic/magnetic anisotropy is far from being completely understood [6]. In NW Iberia, extensional collapse and late magmatic activity of the Variscan orogen coincide in time and space with Sn-W-(Ta-Nb)-Au deposits. Large shear-zones control several large-scale deposits and geophysical anomalies reveal potential new targets in depth.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
GOMEZ BARREIRO Juan; BARRIOS SANCHEZ Santos; Morales, J. and PUENTE ORENCH Ines. (2021). The correlation of polycrystalline texture and magnetic anisotropy: Refining geophysical exploration for Strategic Ore deposits.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-02-329
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.