Supporting data for manuscript 2021JB023176"Devonian to Carboniferous-Permian southward migration of the Dananhu juvenile arc in the Eastern Tianshan (NW China)"

Published: 10 September 2021| Version 1 | DOI: 10.17632/xzbmyjjdbs.1
Contributor:
Qigui Mao

Description

The data are the supporting information (SI.) for the manuscript “Devonian to Carboniferous-Permian southward migration of the Dananhu juvenile arc in the Eastern Tianshan (NW China)”. They contain: 1. SI. Table 1 “Zircon U-Pb ages of granites in the Dananhu arc in eastern Tianshan orogen, NW China” is U-Pb dating results of granitic rocks at the Kezier (K), Tuwu (Y) and Kanguer area (N) in the Dananhu arc. They reveal that granitic magmas became younger southwards in the growing Dananhu arc from 401-335 Ma in the Kezier area, to 334-315 Ma in the Tuwu area, and finally to 279-254 Ma in the Kanguer accretionary belt. 2. SI. Table 2 “The major (wt%), trace element (ppm) data of granites in the Dananhu arc in the eastern Tianshan orogen, NW China.” is the geochemical results of granitic rocks at the Kezier (K), Tuwu (Y) and Kanguer area (N) in the Dananhu arc. These granitic rocks include I-type granites, A-type granites, and adakite-like granites. The I-type granites (401-270 Ma) were generated by partial melting of juvenile intermediate or mafic crust. The A2-type granites (K7, 356 Ma) were products of strong fractional crystallization of mantle-derived magmas in an extensional setting. The Late Permian adakite-like granite (N8, 254 Ma) was derived from a depleted subducted oceanic slab. 3. SI. Table 3 “Zircon Lu-Hf isotopic data of granites in the Dananhu arc in the eastern Tianshan orogen, NW China.” is the zircon Lu-Hf isotopic results of the Kezier (K), Tuwu (Y) and Kanguer area (N) in the Dananhu arc. These crust-derived granitic rocks have relatively high positive zircons εHf(t) (+7.7-+19.6) values and young model age, suggesting that the Dananhu arc was a juvenile accretionary arc. 4. SI. Table 4 “Summary of published zircons ages of mafic-ultramific and granitic intrusions in the Dananhu arc.” is the published zircons ages of Devonian to Permian granitic intrusions at the Kezier (K), Tuwu (Y) and Kanguer area (N), and the early Permian mafic-ultramific complex in the Dananhu arc. The granitic rocks are younging southward from Kezier area, to Tuwu area and Kanguer accretionary complex. The early Permian mafic-ultramific complex emplaced in the Dananhu arc. SI. Analytical methods contain the zircon U-Pb dating, zircon Lu-Hf analyses, major element and trace element experiments, and Sr-Nd isotopic analyses analytical methods.

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