Müller, Samuel; Garbe-Schönberg, Dieter; Koepke, Jürgen; Hoernle, Kaj (2021): EPMA major element data for core and rim compositions of clinopyroxene [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.934699, In: Müller, S et al. (2021): Petrographic key parameter, EPMA data, LA-ICP-MS data, for plagioclase and clinopyroxenen of 39 gabbro samples form the Oman Ophiolite (Wadi Gideah Transect) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.934706
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Abstract:
The main part of major element concentrations was measured at the Institute of Mineralogy of the University of Hannover using a Cameca SX100 electron microprobe operated through the Cameca PeakSight software. Additional data was generated at the Institute of Geosciences at Kiel University using a JOEL JXA 8900 R electron microprobe. Results from both labs have been cross-checked, analyzing identical samples. All elements have been measured at Kα emission lines with a focused and fixed beam, an acceleration voltage of 15 kV, a beam current of 15 nA, and a signal count time per element of 10s on peak and 5s on each background. Matrix-correction according to PAP. For each of the 39 samples, repetitive measurements on multiple crystals have been carried out. We put a strong focus on reliable primitive core measurements; nevertheless, for most samples, we also acquired data for rim compositions. P-values have been calculated based on a paired, two-sided t-test to evaluate the significance of the difference between core and rim mean concentrations statistically and allow for H0 hypothesis testing. Additionally, propagation of uncertainty has been calculated for Mg# and Ca#.
Keyword(s):
crystallization temperature; EMPA; EPMA; foliated gabbro; fossile ocean crust; gabbro; Geochemistry; in situ data; LA-ICP-MS; LA-ICPMS; layered gabbro; major and trace element data; major and trace elements; major element analysis; major elements; microscopy; Mineral compositions; mineral data; modal proportions; ocean crust accretion; ocean crust formation; oceanic crust; olivine; Oman Ophiolite; ophiolite; Petrography; rock description; Samail Ophiolite; Temperature; thin-section; trace- and major elements; trace element; trace elements; Wadi Gideah; Wadi Gideah Transect
Coverage:
Median Latitude: 22.874854 * Median Longitude: 58.518895 * South-bound Latitude: 22.826100 * West-bound Longitude: 58.501200 * North-bound Latitude: 22.914000 * East-bound Longitude: 58.532600
Date/Time Start: 2010-02-01T00:00:00 * Date/Time End: 2015-02-01T00:00:00
Event(s):
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1947 data points