Late Archean to Early Proterozoic lithospheric mantle beneath the western North China craton: Sr–Nd–Os isotopes of peridotite xenoliths from Yangyuan and Fansi

Xu, Yi–Gang; Blusztajn, Jerzy; Ma, Jinlong; Suzuki, Katsuhiko; Liu, J.-F.; Hart, Stanley R.

doi:10.1016/j.lithos.2007.04.005

Cited by 133 publications

(82 citation statements)

References 68 publications

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“…As discussed above, the studied mantle xenoliths show petrologic and geochemical similarities to those spinel lherzolites hosted in Cenozoic basalts in eastern China [2][3][4][5][6][7][8], e.g. relatively low Fo, N-MORB-like REE patterns of cli-nopyroxenes and MORB-type Sr-Nd isotopic signatures [9,10,12].…”

Section: Origin Of Low- 18 O Olivinementioning

confidence: 52%

“…A large number of studies have shown that the NCB not only experienced extensive lithospheric thinning but also underwent mantle accretion since Mesozoic [1][2][3][4][5][6][7][8]. Evidence from mantle xenoliths entrained by Cenozoic basalts in the NCB indicated that the Cenozoic lithospheric mantle was composed mainly of chemically fertile but Sr-Nd isotopically depleted peridotites, analogues to depleted MORBtype mantle [1,3,5].…”

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confidence: 99%

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A metasomatized mantle wedge origin for low-δ 18O olivine in late Cretaceous Junan and Qingdao basalts in the Sulu orogen

Guo

Wang

et al. 2013

Chin. Sci. Bull.

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The North China Block (NCB) experienced extensive lithospheric thinning and subsequent mantle accretion in the Mesozoic to Cenozoic, but their mechanism remains controversial. This paper reports in situ chemical and oxygen isotope analyses on olivine xenocrysts and porphyroclastic olivines in mantle xenoliths hosted in the late Cretaceous basalts from Junan and Qingdao, the Sulu orogen. The results show that all these olivines have low  18 O values relative to normal mantle peridotite. The olivine xenocrysts and porphyroclastic olivines from Junan have Fo=87.589.8,  18 O=4.1‰-5.2‰ with an average of 4.8‰; the porphyroclastic olivines from Qingdao also have Fo=89.089.9,  18 O=4.1‰-5.2‰ with an average of 4.8‰. These peridotite xenoliths have petrological and geochemical affinities similar to newly accreted MORB-type mantle, we hence consider such low- 18 O features in the olivines to inherit from a mantle wedge that was metasomatized by melts derived from the subducted oceanic crust, which had experienced high-temperature hydrothermal alteration to acquire the low- 18 O signatures. Combined the existence of Cenozoic low- 18 O basalts and garnet pyroxenite xenoliths (relicts of recycled oceanic crust) hosted in Cenozoic basalts in the NCB, the subducted oceanic crust likely played an important role in the lithospheric evolution of the NCB during the Mesozoic to Cenozoic.

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Section: Origin Of Low- 18 O Olivinementioning

confidence: 52%

mentioning

confidence: 99%

A metasomatized mantle wedge origin for low-δ 18O olivine in late Cretaceous Junan and Qingdao basalts in the Sulu orogen

Guo

Wang

et al. 2013

Chin. Sci. Bull.

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“…10d), eastern North China and the NE China Fold Belt were dominated by crustal extension comparable with a backarc environment (Watson et al 1987;Zheng et al 2006;Wang et al 2006a;Xu et al 2008). Mantle-derived magmas were able to underplate continental crust and form new basaltic lower crust.…”

Section: Tectonic Modelmentioning

confidence: 98%

“…Late Mesozoic subduction of the Paleo-Pacific Plate from the east could have caused lithospheric thinning, tectonic erosion of the NCC and widespread magmatism (Zhao et al 1994(Zhao et al , 2004Wu et al 2003;Sun et al 2007) as proposed in a recent overview by Wu et al (2008). More data is needed to determine whether these processes occurred in a backarc setting (Watson et al 1987;Zheng et al 2006;Wang et al 2006a;Xu et al 2008) or at an active continental margin (Wu et al 2008) or both, and what were the dominant tectonic regimes. The widespread Late Mesozoic volcanic rocks in the NCC and adjacent areas offer opportunities to obtain relevant tectonic information.…”

Section: Introductionmentioning

confidence: 99%

Implications of subduction and subduction zone migration of the Paleo-Pacific Plate beneath eastern North China, based on distribution, geochronology, and geochemistry of Late Mesozoic volcanic rocks

Zhang

Liao

et al. 2010

Int J Earth Sci (Geol Rundsch)

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Several major volcanic zones are distributed across the eastern North China Craton, from northwest to southeast: the Greater Xing'an Range, Jibei-Liaoxi, Xishan, and Songliao Basins, and the Yanji, Huanghua, and Ludong volcanic zones. The Huanghua depression within the Bohai Bay Basin was filled by middle Late Mesozoic volcanic rocks and abundant Cenozoic alkaline basalts. Zircon LA-ICP-MS and SHRIMP U-Pb dating show that basicintermediate volcanic rocks were extruded in the Early Cretaceous of 118.8 ± 1.0 Ma (weighted mean 206 Pb/ 238 U age), before Late Cretaceous acid lavas at 71.5 ± 2.6 Ma. An inherited zircon from andesite has a Paleoprotoerozoic core crystallization age of 2,424 ± 22 Ma ( 206 Pb/ 207 Pb age) indicating that the basement of the Bohai Bay Basin is part of the North China Craton. Early Cretaceous basic and intermediate lavas are characterized by strong enrichments in LREE and LILE and depletions in HREE and HFSE, indicating a volcanic arc origin related to oceanic subduction. Depletion in Zr only occurs in basic and intermediate volcanic rocks, while depletions in Sr and Ti exist only in acid samples, indicating that the acid series is not genetically related to the basic-intermediate series. Formation ages and geochemical features indicate that the Late Cretaceous acid lavas are products of crustal remelting in an extensional regime.Combined information from all these volcanic zones shows that subduction-related volcanic rocks were generated in the Jibei-Liaoxi and Xishan volcanic zones during the Early Jurassic, about 60 Ma earlier than their analogues extruded in the Huanghua and Ludong volcanic zones during the Early Cretaceous. This younging trend also exists in the youngest extension-related volcanism in each of these zones: Early Cretaceous asthenosphere-derived alkaline basalts in the northwest and Late Cretaceous in the southeast. A tectonic model of northwestward subduction and continuous oceanward retreat of the Paleo-Pacific Plate is proposed to explain the migration pattern of both arc-related and post-subduction extensionrelated volcanic rocks. As the subduction zone continuously migrated, active continental margin and backarc regimes successively played their roles in different parts of North China during the Late Mesozoic (J 1 -K 2 ).

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“…This range in A is in excellent agreement with heat-production data calculated from bulk-rock chemical analyses (Shaw, 2003) of both peridotites and pyroxenites from northeastern Jordan (0.010-0.038 ). Heat production values typical for lithospheric mantle rocks are in the range 0.001 to 0.05 (e.g., Lenoir et al, 2000;Beccaluva et al, 2001;Ionov et al, 2005;Xu et al, 2008;Bodinier et al, 2008). For the mantle, the mean of uppermantle xenoliths (0.02 ) from Jordan is implemented in our model, which corresponds to the preferred estimate of in the cratonic mantle (0.019 ; Rudnick et al, 1998).…”

Section: Radiogenic Heat Productionmentioning

confidence: 99%

Lithospheric composition and thermal structure of the Arabian Shield in Jordan

Förster

Oberhänsli

et al. 2010

Tectonophysics

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Late Archean to Early Proterozoic lithospheric mantle beneath the western North China craton: Sr–Nd–Os isotopes of peridotite xenoliths from Yangyuan and Fansi

Cited by 133 publications

References 68 publications

A metasomatized mantle wedge origin for low-δ 18O olivine in late Cretaceous Junan and Qingdao basalts in the Sulu orogen

A metasomatized mantle wedge origin for low-δ 18O olivine in late Cretaceous Junan and Qingdao basalts in the Sulu orogen

Implications of subduction and subduction zone migration of the Paleo-Pacific Plate beneath eastern North China, based on distribution, geochronology, and geochemistry of Late Mesozoic volcanic rocks

Lithospheric composition and thermal structure of the Arabian Shield in Jordan

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