Geochemistry and geochronology of eclogites from the northern Dabie Mountains, central China

Liu, Yi-Can; Li, Qiuli; Xu, Suo-Ping; Jahn, Bor‐ming; Zheng, Yong‐Fei; Zongqing, Zhang; Jiang, Liangxiao; Chen, Guanbao; Wu, Wenbin

doi:10.1016/j.jseaes.2004.04.006

Cited by 82 publications

(67 citation statements)

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“…In contrast to the CDB, the retro-eclogite in the NDC generally showed a strong overprinting of HT granulite metamorphism, with the development of a Opx-Pl-Ilm/Spl/Crn granulite facies symplectite assemblage around garnet or Opx-Pl on the matrix clinopyroxene Xu et al, 2000Xu et al, , 2002Liu et al, 2001cLiu et al, , 2005Xiao et al, 2001;Tong and Jahn, 2009). Different P-T conditions have also been estimated for the overprinting granulite assemblages.…”

Section: Distinct P-t Conditions and P-t Paths Of The Ndc And Its Rewmentioning

confidence: 99%

“…The typical omphacite occurs mainly as inclusion in garnet, with Na 2 O contents of 6.5-7.9 wt.%, others having lower Na 2 O contents of 2-4 wt.% Liu et al, 2001cLiu et al, , 2005Liu et al, , 2007aSu et al, 2001). Matrix clinopyroxene tends to show an apparent zoning with a Na-rich core and a Ca-rich rim Liu et al, 2001c;Su et al, 2001;Xiao et al, 2001;Malaspina et al, 2006).…”

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

“…1). These relics differ from those of the CDB, because they suffered intense overprinting of high-temperature granulite facies metamorphism, showing a strong retrogression to garnet pyroxenites or garnet granulites, with the development of granulite facies symplectite assemblages Xu et al, 2000Xu et al, , 2002Xu et al, , 2005Liu et al, 2001cLiu et al, , 2005Xiao et al, 2001;Malaspina et al, 2006;Tong et al, 2007a).…”

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

“…Moreover, three kinds of retrograde eclogite occurrences have been identified by Liu et al (2005): the first one in the deformed (foliated) peridotite of Raobazhai and Huangweihe; the second in banded gneiss from Baizhangyan and Luotian; and the third in marble from Yanzihe (Fig. 1).…”

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

“…Petrologic investigations show that the retrograde eclogites preserve multi-stage mineral assemblages and metamorphic recrystallization histories such as: (i) a peak UHP stage with a Grt-Omp/Cpx-Rt assemblage; (ii) a post-peak HP stage with a Grt-Cpx-Opx-Amp-Pl-Ilm assemblage; (iii) a post-peak HT/UHT stage with a Grt-Opx/Pgt-Ilm/Spl/Crn-Pl assemblage; and (iv) a late amphibolite facies stage assemblage of Hb-Pl-Mt (mineral abbreviations after Kretz, 1983) Liu et al, 2001cLiu et al, , 2005Su et al, 2001;Xu et al, 2002;Malaspina et al, 2006;Tong and Jahn, 2009). The typical omphacite occurs mainly as inclusion in garnet, with Na 2 O contents of 6.5-7.9 wt.%, others having lower Na 2 O contents of 2-4 wt.% Liu et al, 2001cLiu et al, , 2005Liu et al, , 2007aSu et al, 2001).…”

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

See 4 more Smart Citations

Diverse P–T paths of the northern Dabie complex in central China and its reworking in the early Cretaceous

Tong

Jahn

Zheng

2011

Journal of Asian Earth Sciences

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Section: Distinct P-t Conditions and P-t Paths Of The Ndc And Its Rewmentioning

confidence: 99%

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

Section: Occurrences Of Hp/uhp Rocks In the Ndcmentioning

confidence: 99%

See 3 more Smart Citations

Diverse P–T paths of the northern Dabie complex in central China and its reworking in the early Cretaceous

Tong

Jahn

Zheng

2011

Journal of Asian Earth Sciences

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Geochronology and geochemistry of the Sikongshan intrusion in the Dabie Orogen, Central China: Implication for Mesozoic geodynamic background

Liu

Yan

2019

Geological Journal

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The Sikongshan (SKS) intrusion, the largest pluton situated in the Central Dabie unit of the Dabie Orogen (DBO), is composed of monzogranite and quartz diorite. A study combining whole‐rock major and trace element analysis, zircon U–Pb dating, as well as zircon in situ Lu–Hf isotopes was conducted for the SKS intrusion. Zircon dating yielded U–Pb ages of 136 ± 1.6 Ma and 134.6 ± 1.7 to 130.4 ± 1.7 Ma for quartz diorites and monzogranites, respectively, both types belonging to the early stage of the Mesozoic magmatism in the DBO. The quartz diorites exhibited high Na2O (Na2O/K2O = 1.60–1.86) and Sr (1,185–1,365 ppm) and low Y (11.6–14.2 ppm) contents, and therefore high Sr/Y (83.45–108.19) ratios. They also had high ratios of (Dy/Yb)N (48.42–54.91) and (Dy/Yb)N (1.47–1.53). The monzogranites were enriched in K2O (Na2O/K2O = 0.64–0.99) and were also characterized by low Y (5.6–14.7 ppm) contents and high Sr/Y ratios with a geochemical affinity similar to that of the adakites. However, the Sr (<358 ppm) and Al2O3 (3.31–14.92%) contents were much lower than those in typical adakites and quartz diorites. Both the quartz diorites and monzogranites had trace element signatures similar to that of continental crust with enriched levels of Rb, Ba, Th, U, and LREE and depleted levels of Nb, Ta, P, and Ti, indicating their crustal origin. Following an integrated review of these and other data from previous studies, it was concluded that the Sikongshan quartz diorite originated from the thickened lower crust of the DBO, with a composition similar to that of the Huangtuling granulite, which is the exposed lower crust of the DBO. The monzogranite was generated by plagioclase + amphibolite fractional crystallization of the adakitic Tiantangzhai melt. The adakitic rocks in the DBO originated in the western part during 143 to 134 Ma and then spread extensively throughout the whole orogen (134 to 130 Ma). The collapse of the thickened mountain root in the DBO at an extensional setting may be related to the roll‐back of the subducted Paleo‐Pacific slab.

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Geochronology and geochemistry of leucosomes in the North Dabie Terrane, East China: implication for post-UHPM crustal melting during exhumation

Wang

Chen

et al. 2013

Contrib Mineral Petrol

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Geochemistry and geochronology of eclogites from the northern Dabie Mountains, central China

Cited by 82 publications

References 50 publications

Diverse P–T paths of the northern Dabie complex in central China and its reworking in the early Cretaceous

Diverse P–T paths of the northern Dabie complex in central China and its reworking in the early Cretaceous

Geochronology and geochemistry of the Sikongshan intrusion in the Dabie Orogen, Central China: Implication for Mesozoic geodynamic background

Geochronology and geochemistry of leucosomes in the North Dabie Terrane, East China: implication for post-UHPM crustal melting during exhumation

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