Interaction between the Central Asian Orogenic Belt (CAOB) and the Siberian craton as recorded by detrital zircon suites from Transbaikalia

Powerman, Vladislav; Shatsillo, A. V.; Чумаков, Н. М.; Капитонов, И. Н.; Hourigan, J. K.

doi:10.1016/j.precamres.2015.05.015

Cited by 78 publications

(32 citation statements)

References 27 publications

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“…11. Precambrian age distributions for the Yili Block, Chinese Central Tianshan Block, Siberian Craton, North China Craton and Tarim Craton (data from this study, Khudoley et al, 2001;Wan et al, 2006;Xia et al, 2006a,b;Luo et al, 2008;Zhu et al, 2011;Glorie et al, 2014;He et al, 2014a,b,c;Powerman et al, 2015). Fig.…”

Section: Tectonic Affinity Of the Yili Blockmentioning

confidence: 70%

“…In the Siberian Craton, the age distribution is dominated by zircon crystals formed at 3.5-1.5 Ga with peaks at 1.89, 1.98, 2.55, 2.72 and 3.0 Ga (Fig. 11c) (Khudoley et al, 2001;Rojas-Agramonte et al, 2011;Glorie et al, 2014;Powerman et al, 2015). Similarly, in the North China Craton, the age population dominantly formed between 3.5 and 1.5 Ga with spikes at 1.98, 2.18 and 2.45 Ga (Fig.…”

Section: Tectonic Affinity Of the Yili Blockmentioning

confidence: 99%

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Detrital zircons from Neoproterozoic sedimentary rocks in the Yili Block: Constraints on the affinity of microcontinents in the southern Central Asian Orogenic Belt

et al. 2016

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Section: Tectonic Affinity Of the Yili Blockmentioning

confidence: 70%

Section: Tectonic Affinity Of the Yili Blockmentioning

confidence: 99%

Detrital zircons from Neoproterozoic sedimentary rocks in the Yili Block: Constraints on the affinity of microcontinents in the southern Central Asian Orogenic Belt

et al. 2016

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“…A change of provenances during formation of the sedimentary sequence of the BPB also follows from U-Pb geochronological study of detrital zircons from metasediments (Powerman et al, 2015). According to presented data, the proportions of age populations of zircons change throughout the BPB sequence.…”

Section: Obtained Results and Discussionmentioning

confidence: 62%

“…Strongly negative ε Nd (T) for the metasediments from the lower and middle parts of the sequence, as well as their old ages within 3.1-2.3 Ga suggest that (2) ba-3 (3) ba-6 (4) bg-3 (5) bg-8 (6) 78-12 (7) 44-15 (8) м-2 (9) 49-15 (10) br-3 (11) nk-2 (12) b-13/10 (13) (Goldstein, Jacobsen, 1988 (Chumakov et al, 2007). Age boundaries of stratigraphic complexes are shown after (Melezhik et al, 2009;Chumakov et al, 2011;Powerman et al, 2015). The values of ε Nd (Т) for the rocks of the Khomolkha Formation were calculated from (Dubinina et al, 2014).…”

Section: Obtained Results and Discussionmentioning

confidence: 99%

“…Within the BPB, the Meso and Neoproterozoic terrigenous-carbonate rocks compose the most complete Late Precambrian sequences in the Transbikalian region. These sequences were used to solve different problems of stratigraphy of the Transbaikalian region and to reconstruct its geological evolution in the Late Precambrian time (Chumakova et al, 2007;Nemerov et al, 2010;Gladkochub et al, 2013;Powerman et al, 2015). The metasedimentary rocks of the BPB are spatially and genetically associated with large gold, lead, and zinc deposits, including the world-class Sukhoi Log and Kholodnenskoe deposits.…”

Section: Introductionmentioning

confidence: 99%

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Sources of clastic material of the Neoproterozoic metasedimentary rocks of the Baikal–Patom belt, Northern Transbaikalia: Evidence from Sm-Nd isotope data

et al. 2017

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First systematic data on the variations of ε Nd (T) in the Neoproterozoic sedimentary sequence of the Baikal-Patom fold belt (Northern Transbaikalia) are reported. The range of obtained ε Nd (T) is -19.4…-2.0. It was established that the rocks of the Ballaganach and most part of the Dal'nyaya Taiga groups are characterized by ε Nd (T) from -19.4 to -16.3. Upsection, beginning from the Khomolkha Formation, the rocks show a sharp change in the initial Nd isotope composition (ε Nd (T) -8.3…-2.0). The results of Sm-Nd study of metasedimentary rocks of the BPB, as well as the comparison of their Sm-Nd characteristics with those of the inferred source areas suggest that the input of terrigenous material at the early stage of sedimentation in the Baikal-Patom belt was mainly related to the destruction of the Early Proterozoic crust of the Siberian craton. Owing to a change of sedimentation setting from passive continental margin to the "foreland" basin at the late stage, the terrigenous material of the Siberian craton was diluted by clastics from juvenile Neoproterozoic crust of the Baikal-Muya belt.

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Moho depth model for the Central Asian Orogenic Belt from satellite gravity gradients

2017

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The main purpose of this study is to construct a new 3‐D model of the Central Asian Orogenic Belt (CAOB) crust, which can be used as a starting point for future lithospheric studies. The CAOB is a Paleozoic accretionary orogen surrounded by the Siberian Craton to the north and the North China and Tarim Cratons to the south. This area is of great interest due to its enigmatic and still not completely understood geodynamic evolution. First, we estimate an initial crustal thickness by inversion of the vertical gravity component of the Gravity Field and Steady‐State Ocean Circulation Explorer (GOCE) and DTU10 models. Second, 3‐D forward modeling of the GOCE gravity gradients is performed, which determines the topography of the Moho, the geometry, and the density distribution of the deeper parts of the CAOB and its surroundings, taking into account the lateral and vertical density variations of the crust. The model is constrained by seismic refraction, reflection, and receiver function studies and geological studies. In addition, we discuss the isostatic implications of the differences between the seismic Moho and the resulting 3‐D gravity Moho, complemented by the analysis of the lithostatic load distribution at the upper mantle level. Finally, the correlation between the contrasting tectonic domains and the thickness of the crust reveals the inheritance of Paleozoic and Mesozoic geodynamics, particularly the magmatic provinces and the orocline which preserve their crustal features.

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Interaction between the Central Asian Orogenic Belt (CAOB) and the Siberian craton as recorded by detrital zircon suites from Transbaikalia

Cited by 78 publications

References 27 publications

Detrital zircons from Neoproterozoic sedimentary rocks in the Yili Block: Constraints on the affinity of microcontinents in the southern Central Asian Orogenic Belt

Detrital zircons from Neoproterozoic sedimentary rocks in the Yili Block: Constraints on the affinity of microcontinents in the southern Central Asian Orogenic Belt

Sources of clastic material of the Neoproterozoic metasedimentary rocks of the Baikal–Patom belt, Northern Transbaikalia: Evidence from Sm-Nd isotope data

Moho depth model for the Central Asian Orogenic Belt from satellite gravity gradients

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