气候变化领域集成服务门户(CCPortal): S-type granites: Their origin and distribution through time as determined from detrital zircons

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DOI	10.1016/j.epsl.2020.116140
	S-type granites: Their origin and distribution through time as determined from detrital zircons
	Zhu Z.; Campbell I.H.; Allen C.M.; Burnham A.D.
发表日期	2020
ISSN	0012821X
卷号	536
英文摘要	A global compilation of 6911 detrital zircon U-Pb ages and trace element data from 52 major rivers shows secular variations in the relative contributions of I-type and S-type granites through time. The average abundance of S-type granites has been quantified using two methods: (i) comparing the cumulative distribution of P concentrations for selected time intervals, and (ii) using plots of molar P against rare earth elements (REE) plus Y. The former is based on the average P content in S-type granite zircons being greater than in I-types, resulting from the high solubility of apatite in strongly peraluminous S-type granitic magmas. The latter is based on the substitution of (REE3+ + Y3+) for Zr in zircon from S-type granites being charge-balanced by P5+, leading to a near 1:1 correlation between (REE + Y) and P. The results from both methods show a similar pattern: the most important period of S-type zircon production coincides with the assembly of Gondwana and the least important with the formation of Superia (Archean). Both methods also show that Rodinia was a period of relatively low S-type zircon production, compared with the adjacent periods of supercontinent formation: Gondwana and Nuna. Turbidites are an essential component of the S-type granite source region: greywackes provide quartz and feldspar and the interbedded shales water and K. Together these form the essential components for granite minimum melting. We attribute the high production rate of S-type granites during the amalgamation of Pangea, Gondwana and Nuna to the formation of extensive turbidite fans, produced by rapid erosion of the super high mountains that formed during continent-continent collisions. The low production of S-type granites during the assembly of Rodinia is attributed to the dominance of Andean type margins during that period: Andean type margins do not form the giant fans that are essential for the formation of voluminous S-type granite suites. © 2020 Elsevier B.V.
关键词	detrital zircons S-type granites supercontinents trace elements turbidites
英文关键词	Binary alloys; Feldspar; Lead alloys; Metals; Molar concentration; Phosphate minerals; Rare earths; Trace elements; Uranium alloys; Zircon; Continent-continent collisions; Cumulative distribution; Detrital zircon; High production rate; Relative contribution; S-type granites; Supercontinents; turbidites; Granite; detrital deposit; formation mechanism; I-type rock; petrology; rare earth element; S-type rock; supercontinent; trace element; turbidite; uranium-lead dating; zircon
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203012
作者单位	Research School of Earth Sciences, Australian National University, CanberraACT 2601, Australia; Centralized Analytical Research Facility, Institute for Future Environments, Queensland University of Technology, Brisbane, Queensland 4000, Australia
推荐引用方式 GB/T 7714	Zhu Z.,Campbell I.H.,Allen C.M.,et al. S-type granites: Their origin and distribution through time as determined from detrital zircons[J],2020,536.
APA	Zhu Z.,Campbell I.H.,Allen C.M.,&Burnham A.D..(2020).S-type granites: Their origin and distribution through time as determined from detrital zircons.Earth and Planetary Science Letters,536.
MLA	Zhu Z.,et al."S-type granites: Their origin and distribution through time as determined from detrital zircons".Earth and Planetary Science Letters 536(2020).