Neoarchean siliceous high-Mg basalt (SHMB) from the Taishan granite–greenstone terrane, Eastern North China Craton: Petrogenesis and tectonic implications

Peng, Touping; Wilde, Simon A.; Wu, Fan; Peng, Bingxia

doi:10.1016/j.precamres.2013.01.017

Cited by 61 publications

(32 citation statements)

References 233 publications

(291 reference statements)

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“…In addition, the Nd isotopic characteristics preclude the possibility of simple mixing between sanukitoid melt (ε Nd (t) = +1.53-+3.30) and continental crustal rocks with low BaSr (b 300 ppm) contents. Compared with the late Archean siliceous high-Mg basalts (SHMBs) in the study area (Peng et al, 2013), the absence of negative Zr and Hf anomalies in the high Ba-Sr granites (Fig. 8) argues against a simple magmatic differentiation-fractionation model or a two component mixing model for the genesis of high BaSr granites.…”

Section: Petrogenesismentioning

confidence: 91%

“…In this case, it is impossible that Peng et al (2012Peng et al ( , 2013. these potassic high Ba-Sr granites were derived from partial melting of subducted ocean islands or ocean plateaus, as suggested by Tarney and Jones (1994).…”

Section: Petrogenesismentioning

confidence: 97%

“…1b; Xu et al, 1992;Cao et al, 1996). Recently, an additional younger igneous suite (~2.54 Ga), including enriched mantle-derived (previously depleted) magmas (i.e., sanukitoids and siliceous high-Mg basalts) and subducted slabderived rocks (adakitic intrusions), has been identified (Wang et al, 2009;Peng et al, 2012Peng et al, , 2013. Field observations suggest that these later plutons intrude the TTG gneisses (Jahn et al, 1988;Cao et al, 1996;Wu et al, 1998), and were metamorphosed at lower grades than the gneissic country rocks.…”

Section: Geological Setting and Petrographymentioning

confidence: 99%

“…For comparative purposes when discussing the new data, we have also included on the figures published data for the late Archean mantlederived sanukitoids (Wang et al, 2009), siliceous high-Mg basalts (SHMBs; Peng et al, 2013), and slab-derived adakitic rocks (Peng et al, 2012) (Peccerillo and Taylor, 1976), revealing an overall potassic character (Fig. 6a).…”

Section: Major and Trace Element Compositionsmentioning

confidence: 99%

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Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution

Peng

Wilde

et al. 2013

Chemical Geology

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Section: Petrogenesismentioning

confidence: 91%

Section: Petrogenesismentioning

confidence: 97%

Section: Geological Setting and Petrographymentioning

confidence: 99%

Section: Major and Trace Element Compositionsmentioning

confidence: 99%

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Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution

Peng

Wilde

et al. 2013

Chemical Geology

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“…The fastest continental crust growth period of the North China Craton is ~2.7 Ga Geng et al, 2012;Peng et al, 2012Peng et al, , 2013Wang et al, 2012Wang et al, , 2013Zhao and Zhai, 2013;Zheng et al, 2013;Bao et al, 2013). The other hypothesis is that the mass of continental crust that formed between 4.0 Ga and 4.5 Ga was similar to today's and has been a steady-state since then with continental crust being recycling into the mantle as fast as it forms (Armstrong and Harmon, 1981;Armstrong, 1991;Wang et al, 2009;Yang et al, 2009).…”

Section: Gamentioning

confidence: 99%

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

et al. 2013

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Recently, how to quantitatively estimate the growth rate of continental crust is an enigmatic issue. With the development of ICP-MS technology, the U-Pb dating and Lu-Hf isotopic compositions of detrital zircons from the fluvial sediments can provide an effective and simple approach to constrain the growth rate and evolutionary history of continental crust. In this paper, 189 concordant detrital zircons from the Laoha River have been analyzed for U-Pb ages and Lu-Hf isotopic compositions by excimer LA-MC-ICP-MS. Detrital zircons from samples LH and LH2 show three major age groups, i.e., 2370 Ma~2572 Ma, 1728~2087 Ma, 127~376 Ma and 2374~2598 Ma, 1765~2087 Ma, 119~405 Ma, respectively. They have the common prominent two stage Hf model ages with a peak at ca. 2.7 Ga, which is consistent with the global continental crust. These indicate that the timing of the strongest magmatic events is at ca. 2.5 Ga and 1.8 Ga, and the best estimation age of mantle extraction of the northeast margin of North China Craton is ca. 2.7 Ga. The detrital zircons with U-Pb ages of ~1.8 Ga and ~2.5 Ga have the two stage Hf model ages of ca. 2.7 Ga, whereas ε Hf (t) values are different from those of depleted mantle. These indicate that the majority of continental crust of the northeast margin of North China Craton at time of ~1.8 Ga originated from the reworking of ~2.7 Ga crust. About 5% of the present crustal volume in the northeast margin of North China Craton was formed at 2.9 Ga; whilst ~64% of the present crustal volume in the northeast margin of North China Craton has been formed at 2.5 Ga, which is higher than that of previous studies. It suggests that the continental crust growth in the North China Craton is not uniform, but it is consistent with the episodic growth of global continental crust (60%). Moreover, the majority continental crust of the northeast margin of North China Craton has been formed at 1.8 Ga (84%) as previously interpreted. Finally, we have used formulas to quantitatively calculate the reworking rate and give a suggestion that the time of 2.5 Ga is also the main growth period of continental crust of the North China Craton, and the time of 1.8 Ga is the strongest reworking period of the continental crust in the craton. In addition, the reworking rate began to drop after reactivating in the North China Craton, and the addition of depleted mantle was gradually increased.

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An island‐arc tectonic setting for the Neoarchean Sonakhan Greenstone Belt, Bastar Craton, Central India: Insights from the chromite mineral chemistry and geochemistry of the siliceous high‐Mg basalts (SHMB)

et al. 2017

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The Neoarchean Sonakhan Greenstone Belt, located in the northeastern fringes of Bastar Craton, Central India, is dominated by basalts, andesites, dacites, and rhyolites and also contains some basic rocks with very high MgO (up to 33.4 wt%). Chromite mineralization is present in these rocks along with the cumulates of olivine and clinopyoxenes. The rocks are classified as siliceous high‐magnesium basalts (SHMB) exhibiting enriched large ion lithophile elements (LILE) and light rare earth elements (LREE) relative to the high field strength elements. Elevated Th/Yb ratios and negative Nb‐Ta‐Ti anomalies in the primitive mantle normalized multielement diagram indicates a significant role of subduction‐related melts/fluids in their genesis. The chromites in SHMB have high Cr# (0.67–0.75) and moderate Mg# (0.11–0.5) values. Parental melt calculations in the chromites indicate that they are crystallized from an SHMB magma in an island‐arc setting. A plausible model for the genesis of the rocks of Sonakhan Greenstone Belt includes initial subduction of an intraoceanic lithosphere followed by eruption of lava in an oceanic environment. Continued subduction of the slab followed by slab rollback followed by the generation of SHMB parental magma, which was introduced into the basal portions of the lithosphere in which cumulates of olivine and clinopyroxene have been developed and the chromite mineralization occurred in the inter cumulus space. Final emplacement of the magma took place in a forearc suprasubduction‐zone environment with SHMB signature carrying the cumulates, which were located in the lower part of the lithosphere.

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Neoarchean siliceous high-Mg basalt (SHMB) from the Taishan granite–greenstone terrane, Eastern North China Craton: Petrogenesis and tectonic implications

Cited by 61 publications

References 233 publications

Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution

Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

An island‐arc tectonic setting for the Neoarchean Sonakhan Greenstone Belt, Bastar Craton, Central India: Insights from the chromite mineral chemistry and geochemistry of the siliceous high‐Mg basalts (SHMB)

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