Provenance transition from the North China Craton to the Grenvillian orogeny-related source: Evidence from late Mesoproterozoic-early Neoproterozoic strata in the Liao-Ji area

2021 ◽  
Vol 362 ◽  
pp. 106281
Author(s):  
Wen Zhang ◽  
Fulai Liu ◽  
Chaohui Liu
Keyword(s):  
North China Craton ◽  
North China ◽  
The North ◽  
Grenvillian Orogeny ◽  
Early Neoproterozoic

Detrital zircon records of late Paleoproterozoic to early Neoproterozoic northern North China Craton drainage reorganization: Implications for supercontinent cycles

2020 ◽  
Vol 132 (9-10) ◽  
pp. 2135-2153 ◽  
Author(s):  
Chaohui Liu ◽  
Guochun Zhao ◽  
Fulai Liu ◽  
Jianrong Shi ◽  
Lei Ji
Keyword(s):  
Detrital Zircon ◽  
North China Craton ◽  
North China ◽  
Rift Zone ◽  
Fennoscandian Shield ◽  
Detrital Zircons ◽  
Sediment Provenance ◽  
The North ◽  
Khondalite Belt ◽  
Early Neoproterozoic

Abstract Statherian through Tonian strata of the Langshan–Zha’ertai–Bayan Obo–Huade rift zone (LZBH) at the northern margin of the North China Craton provide an excellent record of changes in sediment provenance related to the supercontinent dispersal and amalgamation. During the late Paleoproterozoic to early Neoproterozoic, the LZBH developed over the Yinshan Block and was flanked by the Khondalite Belt to the south, the Trans–North China Orogen and Yanliao rift zone to the east, ultimately preserving a >7000-m-sequence of fluvial, marginal marine, and offshore marine sediments. In order to decipher the influence of these tectonic features on sediment delivery to the area, we evaluated 4955 U-Pb and 1616 Lu-Hf analyses from 66 samples across the entire LZBH, of which 1002 U-Pb and 271 Lu-Hf analyses from 12 samples are newly reported herein. The detrital zircon results indicate three stratigraphic intervals with internally consistent age peaks: (1) Changcheng to lower Jixian system (Statherian–lower Calymmian), (2) upper Jixian system (upper Calymmian), and (3) Qingbaikou system (Tonian). Statistical analysis of the detrital zircon results reveals two distinct changes in sediment provenance. The first transition, between the lower and upper Calymmian, reflects a provenance change from the basement of the Yinshan Block and the Khondalite Belt to a mixed signature, indicating derivation from both basement and Statherian rift-related magmatic products. Such a transition implies establishment of east–west drainage systems traversing the Paleoproterozoic Trans–North China Orogen caused by continued rifting since Statherian and pre-magmatic uplift during breakup of the North China Craton from the Columbia supercontinent. The second transition is indicated by the presence of Mesoproterozoic detrital zircons with juvenile Hf isotopic features since Tonian time and the up-section and northward increase of Mesoproterozoic detrital zircons. Their provenance is interpreted to be the Fennoscandian shield by a pancontinental drainage system related to aggregation of the Rodinia supercontinent. Thus, the detrital zircon spectra in the LZBH document the transition from initial unroofing of local uplifted basement of the Yinshan Block and Khondalite Belt to the distant Yanliao rift zone, then to the more distant Fennoscandian shield.

Formation Age of the Qinling Complex and the early Paleozoic Tectonic Event

2013 ◽  
Vol 734-737 ◽  
pp. 60-70
Author(s):  
Yu Shi ◽  
Xi Jun Liu ◽  
Zuo Hai Feng
Keyword(s):  
South China ◽  
North China Craton ◽  
North China ◽  
Geochemical Data ◽  
Early Paleozoic ◽  
Tectonic Event ◽  
The North ◽  
Icp Ms ◽  
South China Craton ◽  
Early Neoproterozoic

The Qinling orogenic belt (QOB) located between the North China Craton (NCC) and the South China Craton (SCC) is composed of the Northern Qinling Belt (NQB) and the Southern Qinling Belt (SQB). This study presents new geochemical data, zircon U-Pb ages and Hf isotopes from two rocks from the Qinling complex in the NQB. LA-ICP-MS zircon U-Pb dating results suggest that the Qinling complex was formed in early Neoproterozoic and experienced the early Paleozoic metamorphism. HighεHf(t) values of 9.0-12.0 for the early Paleozoic zircons indicated that there is mantle-derived magma intruding into the Qinling complex in the early Paleozoic.

New geochronologic and paleomagnetic results from early Neoproterozoic mafic sills and late Mesoproterozoic to early Neoproterozoic successions in the eastern North China Craton, and implications for the reconstruction of Rodinia

2019 ◽  
Vol 132 (3-4) ◽  
pp. 739-766 ◽  
Author(s):  
Hanqing Zhao ◽  
Shihong Zhang ◽  
Jikai Ding ◽  
Linxi Chang ◽  
Qiang Ren ◽  
...  
Keyword(s):  
North China Craton ◽  
North China ◽  
Critical Time ◽  
Middle Part ◽  
Detrital Zircons ◽  
Significant Discrepancy ◽  
Virtual Geomagnetic Pole ◽  
Geological Evidence ◽  
The North ◽  
Early Neoproterozoic

Abstract The interval from the late Mesoproterozoic to early Neoproterozoic is generally considered as a critical time for the amalgamation of Rodinia. The location of the North China Craton (NCC) in Rodinia remains contentious and demands greater paleomagnetic constraints. A combined geochronologic and paleomagnetic study was conducted on the late Mesoproterozoic to early Neoproterozoic rocks in the eastern NCC. Three sills were dated at ca. 945 Ma and one at ca. 920 Ma through use of the zircon U-Pb secondary ion mass spectroscopy method. Paleomagnetic investigation revealed no significant discrepancy between these sills. A positive baked-contact test, secular variation test and presence of reversals together support the primary origin interpretation for the remnant magnetization. A high-quality pole at (28.2 °S, 141.9 °E, A95 = 10.4°) was thus obtained by averaging our new results and a virtual geomagnetic pole previously reported for a ca. 920 Ma sill in the region. These Neoproterozoic sills intruded the successions that contain correlative strata that are named Nanfen, Xinxing, and Liulaobei formations in Liaoning, Jiangsu, and Anhui provinces, respectively. The Nanfen Formation and its equivalents are constrained between ca. 1120 and ca. 945 Ma by detrital zircons and the well-dated mafic sills. The paleomagnetic inclinations observed from the lower parts of the Nanfen, Xinxing, and Liulaobei formations are notably steep. The corresponding poles from these rock units are consistent and averaged at 38.6 °N, 136.7 °E (A95 = 3.2°). The quality of this pole is strengthened by a positive reversal test and its distinctiveness from the younger poles of the NCC. In the middle part of the Nanfen Formation, however, the paleomagnetic directions are characterized by moderate inclinations, being significantly different from those in the lower part of the Nanfen Formation and its equivalents. The calculated pole for the upper part of the Lower Member of the Nanfen Formation is at 8.0 °N, 128.5 °E (A95 = 7.9°). Another pole obtained from the Middle Member of the Nanfen Formation is at 11.2 °S, 127.7 °E (A95 = 8.5°). These two poles also differ from the younger poles of the NCC and likely represent the primary remanences. Our new results, together with the existing global paleomagnetic data and geological evidence, aided by the “right-way-up” connection model between Laurentia and Baltica in Rodinia, support a NCC–NW Laurentia connection between ca. 1120 and 890 Ma.

Geodynamics of decratonization and related magmatism and mineralization in the North China Craton

2021 ◽  
Author(s):  
Jin-Hui Yang ◽  
Lei Xu ◽  
Jin-Feng Sun ◽  
Qingdong Zeng ◽  
Ya-Nan Zhao ◽  
...  
Keyword(s):  
North China Craton ◽  
North China ◽  
The North

scholarly journals Measuring the ‘Great Unconformity’ on the North China Craton using new detrital zircon age data

2016 ◽  
Vol 448 (1) ◽  
pp. 145-159 ◽  
Author(s):  
Tianchen He ◽  
Ying Zhou ◽  
Pieter Vermeesch ◽  
Martin Rittner ◽  
Lanyun Miao ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
North China Craton ◽  
North China ◽  
Zircon Age ◽  
The North
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