Structural deformation and mineralization in the early Proterozoic Liaojitite suite, Eastern Liaoning Province, China

Yang, Zhensheng; Li, Shuguang; Yu, Baoxiang; Gao, Dehua; Gao, Chengye

doi:10.1016/0301-9268(88)90048-4

Cited by 35 publications

(7 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In most cases, the central parts of the domes are occupied by the Paleoproterozoic Liaoji granitoids (Fig. 7, Yang et al, 1988). The apparent absence of S 3 foliations related to crystallization of micaceous minerals in F 3 fold hinges suggests that the D 3 phase of deformation occurred under relatively lower temperature conditions than those of the D 1 and D 2 deformations.…”

Section: Deformationmentioning

confidence: 93%

Deformation history of the Paleoproterozoic Liaohe assemblage in the eastern block of the North China Craton

Zhao

Sun

et al. 2005

Journal of Asian Earth Sciences

302

119

View full text Add to dashboard Cite

Section: Deformationmentioning

confidence: 93%

Deformation history of the Paleoproterozoic Liaohe assemblage in the eastern block of the North China Craton

Zhao

Sun

et al. 2005

Journal of Asian Earth Sciences

302

119

View full text Add to dashboard Cite

“…The Eastern Block (also known as the Yanliao Block, Santosh, 2010) is subdivided into the Archaean Longgang Block to the north, the Liaonan‐Nangnim Block to the south and the Palaeoproterozoic Jiao‐Liao‐Ji Belt or tectonic belt at the centre. The latter consists of the ENE‐trending Liaohe Group (Figure 2), its equivalents and associated Liaoji granitoids (Yang et al ., 1988; Zhang et al ., 1988; Sun et al ., 1993, 1996; Peng and Palmer, 1995; Li et al ., 1996; Li et al ., 2004a, b, 2005, 2006).…”

Section: Regional Geologymentioning

confidence: 99%

“…The Liaohe Group is conventionally divided into five formations, namely, the Langzishan, Li'eryu, Gaojiayu, Dashiqiao and Gaixian formations from bottom to top. They are usually assigned to two groups: the South and North Liaohe groups, which are transitional from a lower clastic‐rich sequence through a carbonate‐rich sequence to an upper clastic‐rich sequence (Figure 2) (Zhang and Yang, 1988; Yang et al ., 1988; Wang et al ., 1995; Liu et al ., 1997; Li et al ., 1998a, b, 2001a, b, 2004b, 2005). Recent geochronological studies (Luo et al ., 2004) show that the detrital zircons of the Langzishan Formation, the lowest sequence of the Liaohe Group, have concordant U–Pb ages ranging from 2.05 to 2.24 Ga, suggesting that the Liaohe Group was deposited at some time after 2.05 Ga.…”

Section: Regional Geologymentioning

confidence: 99%

“…Although most of the overgrowth or recrystallization rims on the zircons are too narrow to be analysed, some of the rims of zircons from this formation yielded concordant or upper intercept ages around 1.93 Ga, interpreted as the peak metamorphic age of the Liaohe Group. Although the Yushulazi and Yongning formations overlapping the Liaohe Group were also traditionally considered as Palaeoproterozoic (Yang et al ., 1988), the recent recognition of Mesoproterozoic (1.05–1.31 Ga) igneous zircons from the Yushulazi Formation indicates the existence of Grenvillian‐aged magmatism in the eastern margin of the Eastern Block of the North China Craton (Luo et al ., 2006). Therefore, the Yushulazi Formation must have been deposited at some time between 1.05 and 0.9 Ga, prior to the sedimentation of the 0.9–0.8 Ga Yongning Formation and, therefore, it does not belong to the upper part of the Palaeoproterozoic Liaohe Group, as previously interpreted by Luo et al .…”

Section: Regional Geologymentioning

confidence: 99%

“…Many Palaeoproterozoic plutons are associated with the Liaohe Group, and are dominated by monzogranite and rapakivi granite/syenite (Figure 3). These intrusives have been investigated on the basis of lithology, geochemistry and structure/emplacement correlations (Zhang and Yang, 1988; Yang et al ., 1988; Sun et al ., 1993, 1996; Peng and Palmer, 1995; Li et al ., 1997a, b, 1998a, b, 2001a, b; Hao et al ., 2004). SHRIMP U–Pb zircon analyses reveal that the pre‐tectonic magnetite‐bearing monzogranitic gneisses were emplaced during the period 2176–2166 Ma and metamorphosed at 1914 Ma (Li and Zhao, 2007).…”

Section: Regional Geologymentioning

confidence: 99%

See 2 more Smart Citations

Palaeoproterozoic tectonothermal evolution and deep crustal processes in the Jiao‐Liao‐Ji Belt, North China Craton: a review

et al. 2011

View full text Add to dashboard Cite

The Palaeoproterozoic Jiao-Liao-Ji Belt is located in the eastern margin of the Eastern Block of the North China Craton. In this paper, we synthesize the tectonothermal evolution and deep crustal processes in the Jiao-Liao-Ji Belt based on recent information. A mantle plumerelated underplating from 2.53 to 2.36 Ga is envisaged which led to the emplacement of the 2.47-2.33 Ga alkali granite plutons and mafic dyke swarms, followed by the development of the Jiao-Liao-Ji Rift and bi-modal volcanism. The underplating resulted not only in different sedimentary environments in the upper crust, but also in a differentiation of the initial thermal structure in the rift. This controlled the metamorphism and style of P-T-t paths in the different parts of the rift. Subsequent underplating resulted in the emplacement of the A-type Liaoji granites of ca. 2.17 Ga in the lower crust, and the formation of associated pegmatites of 2.2 and 2.0 Ga, together with the development of a bedding-parallel extension. However, the main orogeny occurred between 1.93 and 1.88 Ga with closing of the rift, compressional deformation and high-pressure granulite metamorphism in the southern part of the orogen. Subsequently, lithospheric blocks were possibly delaminated at $1.85 Ga; anorogenic magmatic rocks such as rapakivi granite, alkaline granites and syenite were intruded, and pegmatite veins and mafic dyke swarms were emplaced cross-cutting all the earlier structural traces. We identify that the underplating styles, collision processes and delamination types in the deep lithosphere controlled the tectonothermal evolution of the crust in the Jiao-Liao-Ji region.

show abstract

Geochemistry of two types of Palaeoproterozoic granites, and zircon U–Pb dating, and Lu–Hf isotopic characteristics in the Kuandian area within the Jiao‐Liao‐Ji Belt: Implications for regional tectonic setting

Zhao

Zhang

et al. 2020

Geological Journal

View full text Add to dashboard Cite

Palaeoproterozoic granites accompanied with granulite‐facies gneisses can be recognized in the Kuandian area, northern Jiao‐Liao‐Ji Belt (JLJB). This study highlights two episodes of Palaeoproterozoic magmatism, identified by granites and biotite monzogranitic gneisses herein. Zircon grains from biotite monzogranitic gneiss with homogeneous oscillatory zoning yielded a U–Pb age of 2,153 ± 16 Ma, in accordance with the age of zircon cores from the monzogranitic gneiss. Zircon grains from the two granites yielded upper intercept ages of 1,892 ± 38 Ma and 1,859 ± 36 Ma respectively. Monzogranitic gneiss samples are enriched in Th, Rb, Pb, U, and REE, but depleted in Sr and P. They have high 1,000 × Ga/Al ratios versus Zr, Ce, Nb, Y contents, which are usually interpreted as the features of classical A‐type granite that originated in a lithospheric extension setting. The ~1.89–1.86 Ga granite samples have relatively high Al, Rb, Th, U and low Sr, Zr, and Hf contents. These features, combined with the observation of minor apatite grains under the microscope are similar with the I‐type granites. In situ zircon Lu–Hf isotopic analyses revealed that ~1.89–1.86 Ga granite had a similar range and TDM2 ages with the monzogranitic gneiss, but with much lower εHf(t) values. The monzogranitic gneiss may have originated from an Archean crust, while the later granite may be derived from melting of the partial melting of the monzogranitic gneiss or the Archean crust that generated the monzogranitic gneiss. The ~1.89–1.86 Ga granites, together with the coeval S‐type granites in the JLJB, represent an orogeny process that may involve a Palaeoproterozoic subduction.

show abstract

Structural deformation and mineralization in the early Proterozoic Liaojitite suite, Eastern Liaoning Province, China

Cited by 35 publications

References 3 publications

Deformation history of the Paleoproterozoic Liaohe assemblage in the eastern block of the North China Craton

Deformation history of the Paleoproterozoic Liaohe assemblage in the eastern block of the North China Craton

Palaeoproterozoic tectonothermal evolution and deep crustal processes in the Jiao‐Liao‐Ji Belt, North China Craton: a review

Geochemistry of two types of Palaeoproterozoic granites, and zircon U–Pb dating, and Lu–Hf isotopic characteristics in the Kuandian area within the Jiao‐Liao‐Ji Belt: Implications for regional tectonic setting

Contact Info

Product

Resources

About