4.4 billion years of crustal maturation: oxygen isotope ratios of magmatic zircon

Valley, John W.; Lackey, Jade Star; Cavosie, Aaron J.; Clechenko, C. C.; Spicuzza, Michael J.; Basei, Miguel Ângelo Stipp; Bindeman, Ilya N.; Ferreira, Valderez P.; Sial, Alcídes N.; King, Elizabeth M.; Peck, William H.; Sinha, A. K.; Wei, Chun-Sheng

doi:10.1007/s00410-005-0025-8

Cited by 1,049 publications

(473 citation statements)

References 87 publications

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“…This process is also consistent with the relatively low zircon δ 18 O values (6.3-7.0‰) (Fig. 7a), which are within and slightly higher than the upper limit value of previously reported mantlederived magma (6.5‰) (e.g., Valley et al, 2005). Additionally, the current crustal thickness of the Alxa Block is N45 km based on seismic data (Li, 2010).…”

Section: 2)supporting

confidence: 90%

An Early Permian (ca. 280Ma) silicic igneous province in the Alxa Block, NW China: A magmatic flare-up triggered by a mantle-plume?

Wei

Wang

et al. 2014

Lithos

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Section: 2)supporting

confidence: 90%

An Early Permian (ca. 280Ma) silicic igneous province in the Alxa Block, NW China: A magmatic flare-up triggered by a mantle-plume?

Wei

Wang

et al. 2014

Lithos

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“…11), implying addition of continental crust materials into the slab-derived adakite melt. In detail, the majority of zircon δ 18 O values for the Qulong adakites are homogeneous with a narrow range of 5.1‰ to 7.4‰ and an average of 6.4‰, close to the mantle δ 18 O value of zircon (Valley et al, 2005). The whole-rock values calculated based on the formula of δ 18 O Zrn -WR = δ 18 O Zrn -δ 18 O WR ≈ −0.0612 (wt.% SiO 2 ) + 2.5 (Valley et al, 2005) range from 6.6 to 8.8.…”

Section: Formation Of Gangdese Adakitesmentioning

confidence: 88%

“…In detail, the majority of zircon δ 18 O values for the Qulong adakites are homogeneous with a narrow range of 5.1‰ to 7.4‰ and an average of 6.4‰, close to the mantle δ 18 O value of zircon (Valley et al, 2005). The whole-rock values calculated based on the formula of δ 18 O Zrn -WR = δ 18 O Zrn -δ 18 O WR ≈ −0.0612 (wt.% SiO 2 ) + 2.5 (Valley et al, 2005) range from 6.6 to 8.8. Also, once reported similar δ 18 O values ranging from 7.2 to 8.3‰ for quartz fluid inclusions associated with early stage alteration of Qulong adakites indicating a magmatic origin.…”

Section: Formation Of Gangdese Adakitesmentioning

confidence: 88%

The formation of Qulong adakites and their relationship with porphyry copper deposit: Geochemical constraints

Liu

Ling

et al. 2015

Lithos

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“…In other words the two-mica granites might have been formed with involvement of 10%-20% mantle components. Xiaomubei biotite granites have an average of zircon δ 18 O value of 8.71‰ comparable to the whole rock δ 18 O value of 10.52‰ [36], and on the zircon Hf-O isotopic plot ( Figure 7(b)), the majority of their Hf and O isotopic compositions plot within or close to the crust end-member represented by Darongshan and Hunan peraluminous granites. These Hf-O isotope data are similarly suggestive of a minor mantle source.…”

Section: Figurementioning

confidence: 91%

Petrogenesis of early Yanshanian highly evolved granites in the Longyuanba area, southern Jiangxi Province: Evidence from zircon U-Pb dating, Hf-O isotope and whole-rock geochemistry

Tao

et al. 2013

Sci. China Earth Sci.

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Early Yanshanian (Jurassic) granitoids are widespread in the Nanling Range, South China. Whereas large granitic batholiths commonly crop out in the center of the Nanling Range (corresponding geographically to the central and northern parts of Guangdong Province), many small stocks occur in the southern part of Jiangxi Province. Most of the small stocks are associated closely with economically significant rare-metal deposits (W, Sn, Nb, Ta). Here we report the results for biotite granites and two-mica granites from three Yanshanian stocks of the Longyuanba complex. LA-ICPMS U-Pb dating of zircon yields an age of 156.1±2.1 Ma for Xiaomubei biotite granite, and U-Pb zircon dating using SIMS yields an age of 156.7±1.2 Ma for Longyuanba-Chengjiang biotite granite and 156.4±1.3 Ma for Jiangtoudong two-mica granite. Biotite granites are silica-rich (SiO 2 =70%-79%), potassic (K 2 O/Na 2 O>1.9), and peraluminous (ASI=1.05-1.33). Associated samples are invariably enriched in Rb, Th, Pb and LREE, yet depleted in Ba, Nb, Sr, P and Ti, and their REE pattern shows a large fractionation between LREE and HREE ((La/Yb) N =10.7-13.5) and a pronounced Eu negative anomaly (δEu=0.28-0.41). Two-mica granite samples are also silica-rich (SiO 2 =75%-79%), potassic (K 2 O/Na 2 O>1.2), and peraluminous (ASI=1.09-1.17). However, in contrast to the biotite granites, they are more enriched in Rb, Th, Pb and extremely depleted in Ba, Nb, Sr, P and Ti, and exhibit nearly flat ((La/Yb) N =0.75-1.08) chondrite-normalized REE patterns characterized by strong Eu depletion (δEu=0.02-0.04) and clear tetrad effect (TE 1.3 =1.10-1.14). Biotite granites and two-mica granties have comparable Nd isotopic signatures, and their εNd(t) are concentrated in the 13.0 to 9.6 and 11.5 to 7.7 respectively. Their zircon Hf-O isotopes of both also show similarity (biotite granites: εHf(t)=10.8-7.9, δ 18 O=7.98‰-8.89‰ and εHf(t)= 13.8 to 9.1, δ 18 O=8.31‰-10.08‰; two-mica granites: εHf(t)=11.3 to 8.0, δ 18 O=7.91‰-9.77‰). The results show that both biotite and two-mica granites were derived mainly from sedimentary source rocks with a minor contribution from mantle-derived materials. In spite of some S-type characteristics, the biotite granites were formed by fractional crystallization of I-type magma and assimilation of peraluminous sedimentary rocks during their ascent to the surface. Therefore, they belong to highly fractionated I-type granites. Two-mica granites exhibit a tetrad effect in their REE patterns, but share the same isotopic features with the biotite granites, suggesting that they are highly fractionated I-type granites as well. Their Lanthanide tetrad effects may be attributed to the hydrothermal alteration by magmatic fluids that have suffered degassing at late stages. Granitic magmas undergoing fractional crystallization and wall-rock assilimation can generate highly evolved granites with no REE tetrad effect in the uni-phase system. However, in the late-stage of magmatic evolution in the multi-phase system (i.e., magmatic-hydrothermal s...

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4.4 billion years of crustal maturation: oxygen isotope ratios of magmatic zircon

Cited by 1,049 publications

References 87 publications

An Early Permian (ca. 280Ma) silicic igneous province in the Alxa Block, NW China: A magmatic flare-up triggered by a mantle-plume?

An Early Permian (ca. 280Ma) silicic igneous province in the Alxa Block, NW China: A magmatic flare-up triggered by a mantle-plume?

The formation of Qulong adakites and their relationship with porphyry copper deposit: Geochemical constraints

Petrogenesis of early Yanshanian highly evolved granites in the Longyuanba area, southern Jiangxi Province: Evidence from zircon U-Pb dating, Hf-O isotope and whole-rock geochemistry

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