Geochemical and chronological constraints on the nature of basement rocks and evolution history of the Yap Arc: Datasets and Supplementary Materials
Description of this data
The supporting information for this paper includes text and tables. The text file is a description of detailed analyses methods (Text S1) . Tables give completed data for geochemistry and geochronology results of Yap Arc basement rock samples, which includes: Table S1 (Mineral assemblages of the selective samples), Table S2 (SIMS U–Th–Pb analytical results of titanites in Yap amphibolites), Table S3 (major and trace elements data and Sr-Nd-Pb-Hf isotopes data), Table S4 (40Ar/39Ar VG3600 furnace step-heating analytical results for Y3-9-5 amphiboles) and Table S5(ARGUSVI 40Ar/39Ar laser step-heating analytical results for Y30059-1 amphiboles), which are uploaded separately.
Experiment data files
Table S1 .xlsx
Mineral assemblages of the selective samples
Table S2 .xlsx
SIMS U–Th–Pb analytical results of titanites in Yap amphibolites
Table S3 .xlsx
major and trace elements data and Sr-Nd-Pb-Hf isotopes data
Table S4 .xlsx
40Ar/39Ar VG3600 furnace step-heating analytical results for Y3-9-5 amphiboles
Table S5 .xlsx
ARGUSVI 40Ar/39Ar laser step-heating analytical results for Y30059-1 amphiboles
Steps to reproduce
The rock samples were cleaned with distilled water and crushed into small particles of <3 mm in diameter. The grains with visibly altered parts or secondary minerals were picked out carefully under a binocular. Only the fresh grains with no visible weathered surfaces or secondary minerals were pulverized into powders of 200 mesh with an agate mortar. Whole-rock major element compositions of the samples were analyzed on fused glass discs with a Thermo ARL 9900 X-ray fluorescence spectrometer (XRF) at the State Key Laboratory for Mineral Deposits Research, Nanjing University. Whole-rock trace element compositions in this study were analyzed by ICP-MS (Thermo X-Series II) at the Institute of Crustal Dynamics, China Earthquake Administration. To eliminate the effects of seafloor weathering, the sample powders for Sr-Nd-Pb-Hf isotope analyses were leached in 6N HCl at 70 °C for 30 mins before digestion. Sr-Nd-Pb-Hf isotopes were analyzed fully automatically by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) using a Nu Plasma system at the University of Queensland. The U-Th-Pb age-dating analyses on titanites were performed using a Cameca IMS-1280HR SIMS at Institute of Geology and Geophysics, Chinese Academy of Sciences. 40Ar/39Ar dating of amphiboles was conducted in the Noble Gas laboratory at the University of Melbourne.
Cite this dataset
Zhang, Ji; Zhang, Guo-Liang (2019), “Geochemical and chronological constraints on the nature of basement rocks and evolution history of the Yap Arc: Datasets and Supplementary Materials”, Mendeley Data, v1 http://dx.doi.org/10.17632/txw3pf3wrm.1
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The files associated with this dataset are licensed under a Creative Commons Attribution 4.0 International licence.