The oldest known rocks in south–western China: SHRIMP U–Pb magmatic crystallisation age and detrital provenance analysis of the Paleoproterozoic Dahongshan Group

Greentree, Matthew R.; Li, Zheng‐Xiang

doi:10.1016/j.jseaes.2008.01.001

Cited by 256 publications

(102 citation statements)

References 28 publications

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“…8). Although magmatic and metamorphic events in the period are not well known in the Yangtze Block, detrital zircons of these ages have also been widely reported in Precambrian metasedimentary rocks, which may have been potential detrital sources for our western Yangtze samples (Greentree et al, 2006;Greentree and Li, 2008;Sun et al, 2009;Wang et al, 2012).…”

Section: Western Yangtze Marginmentioning

confidence: 88%

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

et al. 2016

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Section: Western Yangtze Marginmentioning

confidence: 88%

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

et al. 2016

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“…However, rocks with this age range rarely occurred in the South China, except for the metamorphosed volcanic rocks with ages of ca. 1675 Ma from the Dahongshan Group (Greentree and Li, 2008) in the southwestern part of the Yangtze Block and the 1460 Ma amphibolites from the Yunkai area in the Cathaysia Block (Qin et al, 2006). Rocks with Mesoproterozoic ages have been identified in Hainan Island, including ca.…”

Section: Provenancementioning

confidence: 99%

Detrital zircon U–Pb ages of the Proterozoic metaclastic-sedimentary rocks in Hainan Province of South China: New constraints on the depositional time, source area, and tectonic setting of the Shilu Fe–Co–Cu ore district

Wang

et al. 2015

Journal of Asian Earth Sciences

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“…The Dahongshan Group underwent metamorphism of low-amphibolite to high-greenschist facies, and the volcanic rocks inside erupted at Yu et al 2012) ca. 1.68 Ga (Greentree and Li 2008), indicating that the exposed metamorphic basement in the western Yangtze Block is much younger.…”

Section: The Crystalline Basement In the Yangtze Blockmentioning

confidence: 99%

General Precambrian Geology in China

Zhai

Zhou

2015

Precambrian Geology of China

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The Earth has an evolving history ca. 4.6 Ga old. Precambrian continents experienced complex geological evolution since the Early Precambrian onward and carry important records of the secular changes in tectonics and metallogeny, including, at least, three important tectonic events that are Neoarchean enormous crustal growth, tectonic regime inversion from pre-plate tectonics to plate tectonics, and Paleoproterozoic great oxygen event (GOE). Without question, Precambrian geology is a key issue to understand continental geology. Precambrian rocks are extensively distributed in China, not only in cratons, but also in Phanerozoic orogenic belts. The Chinese continent consists of several cratons and surrounding Phanerozoic orogenic belts (folded belts). The main old lands in China include the North China Block (NCB), South China Block (SCB), and Tarim Block (TRB), all of which have individual tectonic evolving histories. The NCB experienced complex geological evolution since the Early Precambrian onward and carries important records from the old continental nuclei, giant crustal growth episode, and cratonization (stabilization), then to the Paleoproterozoic rifting-subduction-accretioncollision with imprints of the GOE, and to the Late PaleoproterozoicNeoproterozoic multistage rifting representing North China platform tectonic features. The TRB has two-layer basement of the Early Precambrian metamorphic complexes and Neoproterozoic sedimentary sequences. Three till sheets have been reported. The SCB consists of the Yangtze Block (YZB) and Cathaysia Block (CTB) that were cohered in the Neoproterozoic. The YZB recorded tectonic processes of the Early Precambrian crustal growth, 1.0-0.9 and 0.8-0.6 Ga metamorphic-magmatic events, and two Neoproterozoic glaciations. The CTB consists of ca. 1.8, 1.0-0.9 Ga, and ca. 0.8 Ga granitic gneisses and metamorphic rocks, indicating there was a vast Precambrian basement. The Neoproterozoic sedimentary rocks overlie partly on the basement. That the YZB and CTB have a Neoproterozoic uniform cover layer illustrates the SCB should form, at least, during 1.0-0.9 Ga. The Nanhua Rift System developed in the SCB in ca. 0.8-0.7 Ga, which probably represented a global event indicating breakup of the Rodinia Supercontinent. The Central Chinese Orogenic System with high-ultra-high-pressure metamorphic rocks supports a suggestion that the above-mentioned three old lands were collided to assemble a unified Chinese continent during the Pangea orogenic period.

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The oldest known rocks in south–western China: SHRIMP U–Pb magmatic crystallisation age and detrital provenance analysis of the Paleoproterozoic Dahongshan Group

Cited by 256 publications

References 28 publications

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

Detrital zircon U–Pb ages of the Proterozoic metaclastic-sedimentary rocks in Hainan Province of South China: New constraints on the depositional time, source area, and tectonic setting of the Shilu Fe–Co–Cu ore district

General Precambrian Geology in China

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