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Advisor(s)
Abstract(s)
The New Exploration Tools for European Pegmatite Green-Tech Resources (GREENPEG) spectral
database contains the spectral signature, obtained through reflectance spectroscopy studies, of European
pegmatites and minerals as well as their host rocks. Samples include pegmatites of the Nb–Y–F (NYF) and
Li–Cs–Ta (LCT) chemical types and host rocks from pegmatite locations in Austria, Ireland, Norway, Portugal,
and Spain. The database contains the reflectance spectra (raw and continuum-removed spectra), sample photographs,
and main absorption features automatically extracted by a self-proposed Python routine. Whenever
possible, spectral mineralogy was interpreted based on the continuum-removed spectra. A detailed description
of the database, its content and structure, the measuring instrument, and interoperability with geographic information
system (GIS) tools is available in this database report. Moreover, examples of how the data can be
used and interpreted are also provided. The advantages and added value of the presented dataset reside in its
European scale, with representative samples from pegmatites with distinct genesis, mineralogy, structure, and
host rocks that can be used as a reference for pegmatite exploration at a global scale via, for example, satellite
image processing. The reported spectral mineral assemblages can also be of interest when considering resource
estimation or ore processing. Thus, it is expected that this open dataset, available on the Zenodo platform
https://doi.org/10.5281/zenodo.6518318 (Cardoso-Fernandes et al., 2022b), will be a reference for distinct types
of users, ranging from academia to industry.
Description
Keywords
Pegmatite Columbite Granite
Citation
Cardoso-Fernandes, Joana; Santos, Douglas; Almeida, Cátia Rodrigues de; Lima, Alexandre; Teodoro, Ana Cláudia (2023). Spectral library of European pegmatites, pegmatite minerals and pegmatite host-rocks – the GREENPEG project database. Earth System Science Data. ISSN 1866-3508. 15:7, p. 3111-3129
Publisher
Copernicus