Provenance and tectonic evolution of Lower Paleozoic–Upper Mesozoic strata from Sibumasu terrane, Myanmar

Cai, Fulong; Ding, Lin; Wei, Yao; Laskowski, Andrew K.; Xu, Qiang; Zhang, Jien; Sein, Kyaing

doi:10.1016/j.gr.2015.03.005

Cited by 88 publications

(44 citation statements)

References 72 publications

(112 reference statements)

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“…This age pattern is comparable with that of West Burma (Figure c; Sevastjanova et al, ; Tang, ). By contrast, compiled detrital zircons from Sibusima (including Baoshan, Tengchong, East Burma, and Thailand; Burrett et al, ; Cai et al, ; G. W. Li et al, ; D. P. Li, Luo, et al, ) exhibit two major age populations of circa 980–860 Ma and 575–465 Ma, with circa 1,300–1,000 Ma zircons as a subordinate population (Figure e).…”

Section: Resultsmentioning

confidence: 97%

“…East Sumatra is characterized by a dominant late Mesoproterozoic age population along with a minor early Neoproterozoic age population (Figure a); clearly dissimilar to Sibusima (Sibumasu excluding East Sumatra) that is dominated by early Neoproterozoic zircons with minor late Mesoproterozoic grains (Figure e). These age distributions occur persistently in Cambrian (Burrett et al, ; G. W. Li et al, ), Ordovician to Silurian (Cai et al, ), Carboniferous to Permian (Cai et al, ; D. P. Li, Luo, et al, ), and even Triassic to Cenozoic (G. W. Li et al, ; Sevastjanova et al, ; Tang, ) strata in different localities of Sibusima, probably reflecting steady/long‐term source characteristics rather than sudden shifts in or mixing between sources. Therefore, such contrasting provenance signatures between East Sumatra and Sibusima indicate that their detrital materials are most probably derived from distinct sources.…”

Section: Discussionmentioning

confidence: 99%

“…Detrital zircon compositions of sediments are mainly controlled by the sources and may be affected by many other factors, leading to sedimentary mixing/mingling or sudden shifts in sources that result in changes in age patterns or in ratios between different age populations (e.g., Cawood et al, ; Fedo et al, ). However, the contrasting contents of 1,300–1,000 Ma and 1,000–900 Ma zircons in northern India and Western Australia, as well as their marginal terranes (e.g., South Qiangtang, Sibusima, and Lhasa), are steady/long‐term observations recurring in Cambrian to Permian (even Cenozoic) strata (e.g., Cai et al, ; Ding et al, ; Gehrels et al, ; Leier et al, ; G. W. Li et al, ; Zhu et al, ), most probably as a result of distinct basement characteristics of the two major crustal blocks, and thus can be used as a diagnostic tool in distinguishing Western Australian from northern Indian affinities.…”

Section: Discussionmentioning

confidence: 99%

“…However, this is not the case in East Sumatra, where 1.9–1.8 Ga zircons are scarce to absent (Figures and a). Most noteworthy is that detrital zircon data from East Burma (Cai et al, ) and Thailand (Burrett et al, ) were used to support a NW Australian vicinity for Sibumasu. Nevertheless, their data unequivocally show more Indian, rather than Australian, affinities (Figure e).…”

Section: Discussionmentioning

confidence: 99%

“…To determine the source terranes for East and West Sumatra, we compiled detrital zircon data from the Lhasa (Gehrels et al, ; Leier et al, ; G. W. Li et al, ; G. W Li, Sandiford, et al, ; Pullen et al, ; Zhu et al, ), South Qiangtang (C. Y. Dong et al, ; Gehrels et al, ; Pullen et al, , ; Zhu et al, ), Tethyan and High Himalayas (Ding et al, ; Gehrels et al, , ; McQuarrie et al, ; Myrow et al, , ; Zhu et al, ), West Burma (Sevastjanova et al, ; Tang, ), northern Sibumasu (Burrett et al, ; Cai et al, ; G. W. Li et al, ; D. P. Li, Luo, et al, ), and Western Australia (Cawood & Nemchin, ; Gardner et al, ; Sircombe & Freeman, ; Veevers et al, ; and Geoscience Australia data at http://www.ga.gov.au/geochron-sapub-web/geochronology/shrimp/search.htm). Detrital zircon data from Precambrian to early Paleozoic strata in the above regions, if available, were primarily used, supplemented by those from younger strata showing comparable age patterns.…”

Section: Sampling and Data Compilationmentioning

confidence: 99%

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Detrital Zircons Dismember Sibumasu in East Gondwana

et al. 2018

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Sibumasu is inferred to have developed as a united terrane in East Gondwana, with West Sumatra linked to Cathaysia. New detrital zircon U‐Pb and Hf isotopic data from Sumatra, complemented by literature data, challenge the above views. The scarcity of early Neoproterozoic zircons in West Sumatra argues against a direct connection between West Sumatra and Cathaysia. Detrital zircons from East Sumatra exhibit age profiles similar to those of Lhasa, West Burma, and Western Australia, with detritus most probably sourced from Western Australia. By contrast, Sibusima (Sibumasu excluding East Sumatra) shows detrital zircon age patterns resembling those of the South Qiangtang and the Tethyan and High Himalaya terranes, whose detrital materials are most likely derived from northern India. Our observations require disaggregation of Sibumasu and a new configuration of northern East Gondwana in the early Paleozoic, with East Sumatra and West Burma occupying a position outboard the Lhasa terrane along the NW Australian margin and Sibusima situated on the northern Greater Indian margin.

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Section: Resultsmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Sampling and Data Compilationmentioning

confidence: 99%

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Detrital Zircons Dismember Sibumasu in East Gondwana

et al. 2018

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Temporal and spatial patterns of sediment routing across the southeast margin of the Tibetan Plateau: Insights from detrital zircon

et al. 2016

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The Cenozoic deposits of the Tibetan Plateau's southeastern margin are often cited as part of a continental‐scale river system connecting the Paleo‐Yangtze River with the Paleo‐Red River. Confirming the purported connection and any subsequent drainage reorganization has garnered significant attention and varied proposed ages for reorganization. This study presents detrital zircon U‐Pb ages and paleocurrents in Eocene to Pleistocene sedimentary basin deposits distributed over a broad area of the southeast Tibetan Plateau margin within the area of proposed paleoriver connectivity. When combined with previously published studies, our U‐Pb ages allow examination of the temporal and spatial distributions of provenance throughout the Cenozoic. We identify six key age components of the detrital U‐Pb age distributions and use these to examine the patterns of sediment provenance for different Cenozoic epochs. Detailed analysis of these components shows that provenance for both onshore and offshore deposits is best described by local bedrock sources and provides little to no evidence of regional changes in provenance. This suggests that a stable fluvial system similar to the modern drainage network has existed since the Eocene with no evidence for major provenance‐altering river capture. Paleoflow measurements taken throughout the SE margin further corroborate the results of detrital zircon provenance. The combination of U‐Pb age components and paleocurrent directions does not support a Cenozoic connection between the Paleo‐Yangtze and Paleo‐Red Rivers.

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Tectonic evolution of north‐eastern Tethyan Himalaya: Evidence from U–Pb geochronology and Hf isotopic geochemistry of detrital zircons

et al. 2019

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It is well established that the Himalayan Orogen was formed by successive amalgamation of continental slices to the Eurasian continent, with the final collision of the Indian continent. The Upper Triassic Langjiexue Group on the north-eastern margin of the Tethyan Himalaya has been central to debates on the provenance with diverse models linking it with the northern India, Lhasa terrane, or multiple sources from surrounding terranes including Australia. In order to address this debate, here, we present U-Pb ages, trace element characteristics, and Hf isotope data of detrital zircons.The trace element data suggest that analysed zircons are mostly of igneous origin, with a broad affinity to mafic source rock, and some of the grains showing evidence for hydrothermal alteration. The zircon age spectra show distinct Permian to Triassic age peaks at 200-280 Ma with εHf(t) between −6.1 and 13.4, Neoproterozoic to Cambrian ages at 480-750 Ma with εHf(t) ranging from −24.7 to 8.5, and a broad Meso-to Neoproterozoic age range of 850-1,150 Ma with εHf(t) values of −8.1 to 10.1. The age spectra from the Langjiexue Group are in contrast with that of the Lhasa terrane which has pronounced age peaks of 300-325, 550-600, 1,150-1,350, and 1,750-1,900 Ma, suggesting that Lhasa might not be the source of Langjiexue Group detritus. In a similar way, north-western Australia and the Banda Arc are excluded as sources of the Langjiexue Group. The Hf model age spectra show distinct peaks of 750-800 and 1,200-1,300 Ma, and the second peak agrees with that of the Tethyan Himalaya. We infer that the basin of Langjiexue Group formed within the basement of Tethyan Himalaya in the Triassic and conclude that the sediments were deposited at the passive margin of northern Indian continent. Based on the results, we also propose the palaeogeographic evolution of the Himalayan Orogen.

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Provenance and tectonic evolution of Lower Paleozoic–Upper Mesozoic strata from Sibumasu terrane, Myanmar

Cited by 88 publications

References 72 publications

Detrital Zircons Dismember Sibumasu in East Gondwana

Detrital Zircons Dismember Sibumasu in East Gondwana

Temporal and spatial patterns of sediment routing across the southeast margin of the Tibetan Plateau: Insights from detrital zircon

Tectonic evolution of north‐eastern Tethyan Himalaya: Evidence from U–Pb geochronology and Hf isotopic geochemistry of detrital zircons

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