2026-05-25T09:22:32Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:67572022-12-02T09:22:31ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.1.4.2019.004 Koerting, Friederike Friederike Koerting 0000-0002-0759-5655 GFZ German Research Centre for Geosciences, Potsdam, Germany Herrmann, Sabrina Sabrina Herrmann 0000-0002-0759-5655 GFZ German Research Centre for Geosciences, Potsdam, Germany Boesche, Nina Kristin Nina Kristin Boesche GFZ German Research Centre for Geosciences, Potsdam, Germany Rogass, Christian Christian Rogass 0000-0002-7855-7971 GFZ German Research Centre for Geosciences, Potsdam, Germany Mielke, Christian Christian Mielke GFZ German Research Centre for Geosciences, Potsdam, Germany Koellner, Nicole Nicole Koellner 0000-0002-4282-8979 GFZ German Research Centre for Geosciences, Potsdam, Germany Altenberger, Uwe Uwe Altenberger 0000-0001-9860-3915 University Potsdam, Potsdam, Germany GFZ Data Services 2019 rare earth minerals spectral library rare earth oxides hyperspectral geochemical analyses X-Ray Fluorescence XRF Electron microprobe analyser EMPA Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > CHEMICAL WEATHERING EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > METALS > METALS PHYSICAL/OPTICAL PROPERTIES EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > MINERALS > MINERAL PHYSICAL/OPTICAL PROPERTIES Koerting, Friederike Friederike Koerting 0000-0002-0759-5655 GFZ German Research Centre for Geosciences, Potsdam, Germany Koerting, Friederike Friederike Koerting 0000-0002-0759-5655 GFZ German Research Centre for Geosciences, Potsdam, Germany Herrmann, Sabrina Sabrina Herrmann 0000-0002-0759-5655 GFZ German Research Centre for Geosciences, Potsdam, Germany Boesche, Nina Kristin Nina Kristin Boesche GFZ German Research Centre for Geosciences, Potsdam, Germany Rogass, Christian Christian Rogass 0000-0002-7855-7971 GFZ German Research Centre for Geosciences, Potsdam, Germany Mielke, Christian Christian Mielke GFZ German Research Centre for Geosciences, Potsdam, Germany Koellner, Nicole Nicole Koellner 0000-0002-4282-8979 GFZ German Research Centre for Geosciences, Potsdam, Germany Altenberger, Uwe Uwe Altenberger 0000-0001-9860-3915 University Potsdam, Potsdam, Germany Foerster, Saskia GFZ German Research Centre for Geosciences, Potsdam, Germany Dataset 10.5194/essd-2019-228 10.5880/GFZ.1.4.2019.003 10.5880/GFZ.1.4.2019.005 2.0 CC BY 4.0 The data set contains mineral chemical analyses of 32 rare earth element (REE) -bearing minerals (REMin) and rare-earth oxides (REO) and their corresponding hyperspectral spectra. The hyperspectral data was acquired with the HySpex system in a range of 400 – 2500 nm and is presented in a spectral library. The resulting reflectance data are scaled from 0 - 10000. The two Rare Earth Element (REE) libraries consist of the spectra of 16 rare earth oxides powders (REO) and 14 REE-bearing minerals (REMin). In addition, it contains the spectra of niobium- and tantalum oxide, two elements technically not part of the REEs. The spectral library presented here is part of a bigger collection of spectral libraries including copper-bearing surface samples from Apliki copper-gold-pyrite mine (Koerting et al., 2019a, http://doi.org/10.5880/GFZ.1.4.2019.005) and copper-bearing minerals (Koellner et al., 2019, http://doi.org/10.5880/GFZ.1.4.2019.003). These libraries aim to give a spectral overview of important resources and ore mineralization.
Version 2.0 (21 December 2020): completely restructured Technical Report and data files according to the review recommendations of the related article in Earth System Science Data (ESSD).

Details:
• New title of the data publication
• Spectral library "GFZ_HySpex_REMin" -> typo correction of the spectral names in the ENVI-standard + .hdr file and the .txt file
• addition of spectra names in the table that lists the sample info
• reorganisation of the sample certificates table