Petrogenesis and geochemistry of circa 2.5 Ga granitoids in the Zanhuang Massif: Implications for magmatic source and Neoarchean metamorphism of the North China Craton

Wang, Junpeng; Kusky, Timothy M.; Wang, Lu; Polat, Ali; Wang, Songjie; Deng, Hao; Fu, Jianmin; Fu, Dong

doi:10.1016/j.lithos.2016.10.028

Cited by 37 publications

(45 citation statements)

References 105 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Zanhuang Massif/Complex (Figure ) is located in the central part of NCC (Zhao et al, ) and occupies an area of approximately 3,850 km 2 (Niu, Xu, & Guo, ). Like other Precambrian basement sections in the NCC, the TTG gneisses are predominant, with a few K‐feldspar granite and monzogranite bodies and some supracrustal rocks (metavolcanic and metasedimentary rocks; BGMRHP, ; Deng et al, ; Deng et al, ; Wang et al, ; Wang, Kusky, et al, ; Xiao, Liu, & Chen, ; Yang et al, , ; Yang et al, ). All these rocks are locally unconformably overlain by sedimentary rocks of the Changcheng Group (BGMRHP, ).…”

Section: Geological Backgroundmentioning

confidence: 98%

“…In the Zanhuang Complex, the main late Archaean granitoid plutons include the Jiandeng potassic granite (Yang et al, ), the Haozhuang granitoid (Wang, Kusky, et al, ), the Huangcha/Wangjiazhuang granite (Li et al, ; Wang et al, ), the ~2.7 Ga TTG gneisses (Yang et al, ), the ~2.5 Ga TTG (Yang et al, ; Yang et al, ), and the ~2.57 Ga TTG and other widespread monzogranites and granodiorites reported in this work. Previously published data from the Neoarchaean‐Palaeoproterozoic granitoids in the Zanhuang Complex are collected in Table S1.…”

Section: Geological Backgroundmentioning

confidence: 99%

“…An older weighted zircon age (2,540 ± 23 Ma) was reported by Wang et al (), but the wide distribution of ages on the concordia plot and the location of dating spots on CL images imply the age may be the result of a mixture of inherited and magmatic domains; thus, this age could not be regarded as the emplacement age. The Haozhuang granitoid is texturally homogeneous and mainly composed of plagioclase (45–50%), K‐feldspar (20–25%), quartz (10–15%), hornblende (5–10%), and minor biotite (Wang, Kusky, et al, ) and thus is classified as a quartz monzodiorite. Wang, Kusky, et al () reported two zircon 207P b/ 206 Pb ages of 2,511 ± 36 Ma and 2,528 ± 18 Ma as the crystallization age.…”

Section: Geological Backgroundmentioning

confidence: 99%

“…The Haozhuang granitoid is texturally homogeneous and mainly composed of plagioclase (45–50%), K‐feldspar (20–25%), quartz (10–15%), hornblende (5–10%), and minor biotite (Wang, Kusky, et al, ) and thus is classified as a quartz monzodiorite. Wang, Kusky, et al () reported two zircon 207P b/ 206 Pb ages of 2,511 ± 36 Ma and 2,528 ± 18 Ma as the crystallization age.…”

Section: Geological Backgroundmentioning

confidence: 99%

“…Recent studies reported a few late Archaean granitoids in the Zanhuang Complex, like the ~2.7 Ga TTG (Yang et al, ), ~2.5 Ga TTG (Yang et al, ; Yang, Du, Ren, Song, & Wan, ), ~2.5 Ga Huangcha/Wangjiazhuang granite (Li et al, ; Wang et al, ; Wang, Kusky, Wang, Polat, & Deng, ), ~2.5 Ga Jiandeng potassic granite (Yang et al, ), and ~2.5 Ga Haozhuang granitoid (Wang, Kusky, et al, ). Although these granitoids have been studied in detail separately, rare studies examined them together.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Zircon U–Pb ages and geochemistry of the late Archaean granitoids in the Zanhuang Complex: Records of an arc–continent collision event at the end of Archaean

Zhang

Wang

et al. 2019

Geological Journal

View full text Add to dashboard Cite

The late Archaean witnessed a critical transition of the composition of the continental crust from predominantly sodic tonalite‐trondhjemite‐granodiorites (TTGs) to a combination of TTGs and increasing proportion of potassic calc‐alkaline granitoids. This shift is also well recorded in the Zanhuang Complex located in the central part of the North China Craton (NCC). In this work, we present a detailed geochemical study of these granitoids and subdivide them into four groups, that is, TTGs, sanukitoids, crustal‐sourced granitoids, and hybrid granitoids. The TTGs in the Zanhuang Complex may have formed at a longer and earlier period during ~2.7 to ~2.5 Ga as the first stage. They show typical TTG characteristics, such as high SiO2, Na2O, and Sr/Y and depletion of Nb, Ta, Ti, and HREE. The TTGs are interpreted to have formed in a subduction‐related environment. The other three groups of granitoids formed at a shorter and later stage. The sanukitoid sample shows high MgO and Mg# and other geochemical signatures of typical Archaean sanukitoid affinity, yielding a weighted mean zircon 207Pb/206Pb age of 2,517 ± 5 Ma as the crystallization age. The sanukitoid magma derived from partial melting of a hydrous mantle peridotite source metasomatized by slab‐derived melts or fluids. The crustal‐sourced granitoids, including a new sample (~2,510 Ma) in this work, the Jiandeng granite (~2,490 Ma), and the Huangcha/Wangjiazhuang granite (2,488 to 2,517 Ma) show signatures of a mainly crustal source such as high SiO2 and K2O, low MgO and Mg# values, and weakly peraluminous. The hybrid granitoids represented by the Haozhuang granitoid (2,511 to 2,528 Ma) are characterized by enrichment in both incompatible (LILE and LREE) and compatible (Mg, Ni, and Cr) elements and may have formed by mixing/contamination of multiple magmas or sources. The temporal and spatial distributions of these groups of granitoids indicate that the Zanhuang Complex experienced a subduction–collision event between the Fuping arc and the Eastern Block of the NCC at the end of Archaean.

show abstract

Section: Geological Backgroundmentioning

confidence: 98%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Zircon U–Pb ages and geochemistry of the late Archaean granitoids in the Zanhuang Complex: Records of an arc–continent collision event at the end of Archaean

Zhang

Wang

et al. 2019

Geological Journal

View full text Add to dashboard Cite

show abstract

Volcanic succession, petrology, and geochemistry of the Sujiagou komatiite from the North China Craton

et al. 2019

View full text Add to dashboard Cite

The~2.7-GaTaishan greenstone belt from the Eastern Block of the North China Craton has well-exposed komatiite sections. The komatiite outcrops at Sujiagou have wellpreserved primary volcanic texture although they have experienced amphibolitefacies metamorphism. Two komatiite lava flows are identified in the Sujiagou outcrops: "Flow Ι," with a thickness of 55 m, is characterized by poly-sutured crust at the top, spinifex texture in the middle, and olivine cumulates at the flow bottom. "Flow ΙΙ" consists of abundant pahoehoe lava lobes with no interstitial materials. These volcanic characteristics, as well as the interbedding with terrestrial sediments, suggest that the Sujiagou komatiite erupted in a subaerial continental environment. The olivinechromite geothermometer gives peak metamorphic temperatures from 684°C to 764°C. Phase equilibria modelling suggests that the mineral proportions and mineral compositions are consistent with a retrograde temperature of~488°C, at which the komatiite would have low olivine Fo (79-89) and high bulk-rock Mg # (83-90). Linear mixing of the in situ trace element compositions of the metamorphic olivine, augite, tremolite, serpentine, and chlorite from Sujiagou komatiite samples can reproduce the trace elements of representative komatiite compositions, suggesting that later metamorphism and fluid-rock interactions played key roles in trace element variationsin the bulk-rock komatiite samples. These results also imply that the "arc signature" of the Sujiagou komatiite may be an overprint from posteruption fluid alteration rather than a primary subduction geochemical feature. Therefore, the Sujiagou komatiites may belong to a part of the global plume-related greenstone belts at~2.7 Ga.

show abstract

Neoarchean to Palaeoproterozoic tectonic evolution of the Trans‐North China Orogen, North China Craton: Evidence from zircon U–Pb geochronology, Lu–Hf isotopes, and geochemistry of the Zanhuang Complex

Shi

Wang

et al. 2020

Geological Journal

View full text Add to dashboard Cite

Research on the Zanhuang Complex has been one of the hotspots in the Neoarchean–Palaeoproterozoic tectonic evolution of the Trans‐North China Orogen (TNCO) in the North China Craton (NCC). Here, we present data from petrology, geochemistry, zircon U–Pb geochronology, and Lu–Hf isotopes on a suite of granite, diorite, TTG gneiss, and amphibolite in the Zanhuang Complex to characterize these rocks and understand their genesis. Zircon U–Pb data yield magmatic ages of 2,607 Ma for granite, 2,599 Ma for diorite and 2,561 Ma for TTG gneiss, with subsequent thermal event ages of 2,530 and 2,471 Ma. Lu–Hf isotopes show εHf(t) values ranging from 0.04 to 7.11 and crustal model ages of 2,700–3,100 Ma for the diorite, indicating a Meso‐ to Neoarchean mantle source with minor input of crustal components. The granite and TTG gneiss have the characteristics of volcanic‐arc granite, with low Sr/Y and (La/Yb)N, high Cr and Ni contents, positive Pb and K anomalies and negative Nb, Ta, P, and Ti anomalies. The amphibolite and diorite are similar to island arc basalt, with low K2O, Sr/Y, (La/Yb)N, and high FeOT, positive Pb anomaly, negative Nb, Ta, and Ti anomalies and absence of obvious Ce anomaly. These signatures indicate that these rocks were likely formed in a subduction setting. We have proposed a model of subduction–collision process in the TNCO, including subduction at ca. 2.70–2.55 Ga, arc–continent collision at ca. 2.55–2.45 Ga, extension and rifting at ca. 2.30–2.05 Ga, and continent–continent collision at ca. 1.90–1.75 Ga. Our results are consistent with the previous models on the tectonic evolution in the NCC and provide further insights into the Neoarchean–Palaeoproterozoic tectonic history of the craton.

show abstract

Petrogenesis and geochemistry of circa 2.5 Ga granitoids in the Zanhuang Massif: Implications for magmatic source and Neoarchean metamorphism of the North China Craton

Cited by 37 publications

References 105 publications

Zircon U–Pb ages and geochemistry of the late Archaean granitoids in the Zanhuang Complex: Records of an arc–continent collision event at the end of Archaean

Zircon U–Pb ages and geochemistry of the late Archaean granitoids in the Zanhuang Complex: Records of an arc–continent collision event at the end of Archaean

Volcanic succession, petrology, and geochemistry of the Sujiagou komatiite from the North China Craton

Neoarchean to Palaeoproterozoic tectonic evolution of the Trans‐North China Orogen, North China Craton: Evidence from zircon U–Pb geochronology, Lu–Hf isotopes, and geochemistry of the Zanhuang Complex

Contact Info

Product

Resources

About