This data set comprises major (XRF) and trace (XRF, ICP-MS, ICP-AES) element geochemistry of 185 samples of crystalline target lithologies of the Nördlinger Ries impact crater in Southern Germany.
The sample set was originally collected by D. Stöffler for the investigation of shock metamorphism and Schmitt and Siebenschock for a research project on the occurrence of impact diamonds in the Nördlinger Ries crater. The data are supplementary material to Siegert et al. (2017, http://doi.org/10.1130/G39198.1) and are supplemented by by geochemical data of melt-bearing impact breccia (suevite) from the research drill core FBN 73 of the Ries impact crater (Siegert et al., 2017; http://doi.org/10.5880/fidgeo.2017.002. More information about sample preparation, methodology and precision expectations are given in the Explanatory File.
Repository samples and thin sections are available for more or less the whole sample set of Stöffler and selected samples from Schmitt and Siebenschock, and are stored in the impactite collection of the Museum für Naturkunde Berlin.
This data collection bundles six datasets about the surface, subsurface and environmental conditions of saltpans that express polygonal patterns in their surface salt crust that are fully described in Lasser et al., 2020 (https://doi.org/10.5194/essd-2020-86). Information stems from 5 field sites at Badwater Basin and 21 field sites at Owens Lake – both in central California, US. All data was recorded during two field campaigns, from between November and December, 2016, and in January 2018.
(1) Lasser, J., Goehring, L. (2020a). Grain size distributions of sand samples from Owens Lake and Badwater Basin in central California, collected in 2016 and 2018. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.910996
(2) Lasser, J., Goehring, L. (2020b): Subsurface salt concentration profiles and pore water density measurements from Owens Lake, central California, measured in 2018 (Version 2). PANGAEA, https://doi.org/10.1594/PANGAEA.922264
(3) Lasser, J., Goehring, L., Nield, J. M. (2020). Images and Videos from Owens Lake and Badwater Basin in central California, taken in 2016 and 2018 [Data set]. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.911054
(4) Lasser, J., Karius, V. (2020). Chemical characterization of salt samples from Owens Lake and Badwater Basin, central California, collected in 2016 and 2018. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.911239
(5) Nield, J. M., Lasser, J., Goehring, L. (2020). TLS surface scans from Owens Lake and Badwater Basin, central California, measured in 2016 and 2018 [Data set]. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.911233
(6) Nield, J. M., Lasser, J., Goehring, L. (2020): Temperature and humidity time-series from Owens Lake, central California, measured during one week in November 2016 (Version 2). Max Planck Institute for Dynamics and Self-Organization, PANGAEA, https://doi.org/10.1594/PANGAEA.922231
The Ries impact structure in Southern Germany is one of the best-preserved impact structures on Earth. Melt-bearing impact breccia appears in a variety of well accessible exposures around the inner ring up to 10 km beyond the crater rim (so-called outer suevite) overlying a ballistically ejected lithic breccia (so-called ‘Bunte Breccia’). Occasionally individual melt bombs occur in the ‘Bunte Breccia’. Coherent impact melt rock outside the inner crater is located in the eastern megablock zone (Stöffler et al., 2013 and references therein).This data set comprises major and trace element geochemistry of samples from eight outer suevite exposures, one impact melt rock exposure, and one melt bomb of the Ries impact crater. Two analytical method approaches were performed: i) in-situ analysis using electron microprobe (EMP) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), and ii) analysis of whole-rock, melt separates, and suevite matrix separates using X-ray fluorescence (XRF), and inductively coupled plasma atomic emission spectroscopy (ICP-AES)/ inductively coupled plasma mass spectrometry (ICP-MS).
Da in allen Teilprojekten der Forschergruppe 415 (Metall(oid)organische Verbindungen in der Umwelt) Analysen von metall(oid)organischen und anderen elementorganischen Verbindungen durchgeführt werden müssen und sich derartige Bestimmungen aufgrund des Einsatzes gekoppelter instrumenteller Verfahren aufwendig und arbeitsintensiv gestalten sowie hohe fachspezifische Erfahrung voraussetzen, werden speziesanalytische Untersuchungen am Institut für Umweltanalytik als zentraler Anlaufstelle durchgeführt, an dem der Einsatz von Kopplungstechniken zwischen chromatographischen Trennmethoden (GC, HPLC, IC) mit Multielementdetektoren (MS, ICP-MS und ICP-OES) zur Untersuchung fester, flüssiger und gasförmiger Proben bereits routinemäßig möglich ist. Mit den bisher etablierten Analysenmethoden ist es aber nicht möglich, alle im Projekt auftretenden analytischen Fragestellungen zu bearbeiten, so daß dem Projektbereich Z über die Routineanalytik hinaus wichtige Forschungs- und Entwicklungsarbeiten zufallen: - Abtrennung störender Matrixbestandteile - Identifizierung unbekannter Verbindungen - Verfahrensvalidierung und Qualitätssicherung.