Zhang, Yanfei; Wang, Chao; Jin, Zhenmin (2019): Compositions of experimental major elements in the mantle transition zone [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.904951, Supplement to: Zhang, Y et al. (accepted): Decarbonation of stagnant slab in the mantle transition zone. Journal of Geophysical Research: Solid Earth, https://doi.org/10.1029/2020JB019533
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Abstract:
The starting materials are two carbonated basalt compositions with CO2 concentrations of 2.5 wt% (PC-a) and 5.0 wt% (PC-b), respectively. The partial melting experimental were conducted at the Laboratory for the Study of the Earth's Deep Interior (SEDI-Lab), China University of Geosciences (Wuhan), using 10/5 and 18/12 cell assemblages combined with a 1000-ton Walker-type multi-anvil press. The experimental pressure and temperature conditions are 13-20 GPa and 1300-1600 oC, respectively. Five phases were observed in the run products: garnet, clinopyroxene, stishovite, magnesite, and quench melt. The chemical compositions of phases were examined by an electron probe micro-analyzer (EPMA, JXA-8100) at the Key Laboratory of Submarine Geosciences, State Oceanic Administration. The accelerating voltage, beam size, and beam current were 15 kV, 5.0–10.0 μm and 10 nA, respectively. Count times were 10s for each of the measured element and 5s for the background. Standard materials were diopside for Si, rutile for Ti, pyrope for Al, Cr2O3 for Cr, CaSiO3 for Ca, Mg2SiO4 for Mg, Fe2O3 for Fe, MnSiO3 for Mn, NiO for Ni, jadeite for Na, K-feldspar for K, and Ca5P3F for P. The relative uncertainties were ~5% for elements of less than 1 wt%, ~1% for elements of ~1–5 wt%, and less than 0.5% for elements of greater than 5 wt%.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Zhang, Yanfei | |||
| 2 | File name | File name | Zhang, Yanfei | |||
| 3 | File format | File format | Zhang, Yanfei | |||
| 4 | File size | File size | kByte | Zhang, Yanfei | ||
| 5 | Uniform resource locator/link to file | URL file | Zhang, Yanfei |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
50 data points