Geochemical constraints on the provenance and depositional setting of Neoproterozoic volcaniclastic rocks on the northern margin of the Yangtze Block, China: Implications for the tectonic evolution of the northern margin of the Yangtze Block

Zhongjin, Xiang; Yan, Quanren; White, James D. L.; Song, Bo; Wang, Zongqi

doi:10.1016/j.precamres.2015.04.012

Cited by 39 publications

(15 citation statements)

References 44 publications

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“…All 27 samples were plotted in the active margin field in both diagrams with very high mean probability values of 0.959 and 1.000, respectively (Figures 5j and 6i; Table 3). Thus, an active margin setting can be inferred for this area during the Neoproterozoic, which is also consistent with the arc setting assigned by the original authors (Xiang et al, 2015), based on the bivariate diagrams of Roser and Korsch (1986), Bhatia andCrook (1986), andFloyd andLeveridge (1987).…”

Section: Application Study A6 (Sakarya Zone Nw Turkey)supporting

confidence: 88%

“…Based on the tectonic discrimination diagrams of Roser and Korsch (1986) and Bhatia and Crook (1986), the original authors (Chen et al, 2014) inferred an arc setting for the sandstone samples, which is consistent with the results obtained from the discriminant functions of this study (an active margin setting). Xiang et al (2015) reported major and trace element data of 27 Neoproterozoic sandstone and siltstone samples from the Yangtze Block, China. All 27 samples were plotted in the active margin field in both diagrams with very high mean probability values of 0.959 and 1.000, respectively (Figures 5j and 6i; Table 3).…”

Section: Application Study A6 (Sakarya Zone Nw Turkey)mentioning

confidence: 99%

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APMdisc: An online computer program for the geochemical discrimination of siliciclastic sediments from active and passive margins

2020

Turkish J Earth Sci

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Section: Application Study A6 (Sakarya Zone Nw Turkey)supporting

confidence: 88%

Section: Application Study A6 (Sakarya Zone Nw Turkey)mentioning

confidence: 99%

APMdisc: An online computer program for the geochemical discrimination of siliciclastic sediments from active and passive margins

2020

Turkish J Earth Sci

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“…indicating that these sediments were derived from source rocks with a low degree of weathering or from sediment with very little recycling (Meinhold et al, 2007;Xiang et al, 2015). The Th/Sc ratio characterizes the average provenance, whereas an increase in the Zr/Sc ratio alone indicates significant sediment reworking, consistent with zircon enrichment (McLennan, 1993).…”

Section: Weathering and Alteration Effectsmentioning

confidence: 97%

Geochemical Characteristics of Early Permian Pyroclastic Rocks in the Jimunai Basin, West Junggar, Xinjiang (NW China): Implications for Provenance and Tectonic Setting

Shangguan

Zhuang

et al. 2021

Acta Geologica Sinica (Eng)

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During the Late Paleozoic, West Junggar (Xinjiang, NW China) experienced a shift in tectonic setting from compression to extension. Ha'erjiao is an important area for investigating collisional structures, post–collisional structures, and magmatic activities. Based on the petrological and geochemical characteristics of pyroclastic and other volcanic rocks in the Permian Kalagang Formation from the borehole ZKH1205 in the Jimunai Basin, the main types of source rock for the pyroclastic rocks deposited in the basin are identified and their implications for the Early Permian tectonic setting examined. The abundance of basalt and andesite lithic fragments in the pyroclastic rocks, together with the REE characteristics and the contents of transition and high field strength elements show that the source rocks were chiefly intermediate–basic volcanic rocks. High ICV values, low CIA values, low Rb/Sr ratios, low Th/U ratios and the mineralogical features suggest weak chemical weathering of the source rocks; the geochemical patterns of the pyroclastic rocks might not only have been impacted by crustal contamination but also might be related to the nature of the magma from the source area. The geochemical properties of the pyroclastic rocks distinguish them from arc‐related ones, and such samples plot in the within‐plate basalt (WPB) field in some diagrams. This is consistent with the formation background of the Early Permian volcanic rocks in this region.

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“…These places were positioned at low to intermediate latitudes during the Cryogenian time. At the same times, a large amount of relatively thick (>2000 meters) Cryogenian volcanic-derived sediments and volcanics were widely distributed in these same districts 6–17 . In addition, the Cryogenian played a key role in the evolutionary and developmental history of early life as a link between the preceding and following periods 18,19 .…”

Section: Introductionmentioning

confidence: 96%

“…( c ) Brevitied geological map of the southern - South Qingling Orogenic Belt, modified from the ref. 17,26 . CFF: Chengkou-Fengxi Fault.…”

Section: Introductionmentioning

confidence: 99%

Cryogenian magmatic activity and early life evolution

Long

Zhang

Luo

2019

Sci Rep

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Data from the Qinling Orogenic Belt in China indicate that a strong magmatic-volcanic event on the Snowball Earth during the Cryogenian age (approximately 720–635 million years ago) was followed by a dynamic period of accelerated evolution of early life through the Ediacaran period. The studied volcanics of the Cryogenian Yaolinghe group are mainly represented by andesite, dacite and rhyolite, with minor amounts of basalt, trachy andesite and trachyte towards the top, which formed in the environment of an active island arc related to a continental margin. Compared with average felsic volcanics, the studied Cryogenian marine volcanic strata are enriched (1.5–30.6 times) in Co, Cr, Bi, Ni, Se, Ga, As, Cu, Ba, V, and Zn. Elemental concentrations (P, Cd, Co, Ni, and Se) of the studied volcanics are more than 5–26.4 times those in the contemporaneous Liantuo tillite. We propose that Cryogenian magmatic and volcanic activity increased the flux of some trace nutritional elements into the oceans which possibly provided essential nutrients for the development of early life.

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Geochemical constraints on the provenance and depositional setting of Neoproterozoic volcaniclastic rocks on the northern margin of the Yangtze Block, China: Implications for the tectonic evolution of the northern margin of the Yangtze Block

Cited by 39 publications

References 44 publications

APMdisc: An online computer program for the geochemical discrimination of siliciclastic sediments from active and passive margins

APMdisc: An online computer program for the geochemical discrimination of siliciclastic sediments from active and passive margins

Geochemical Characteristics of Early Permian Pyroclastic Rocks in the Jimunai Basin, West Junggar, Xinjiang (NW China): Implications for Provenance and Tectonic Setting

Cryogenian magmatic activity and early life evolution

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