Topographic architecture and drainage reorganization in Southeast China: Zircon U-Pb chronology and Hf isotope evidence from Taiwan

Lan, Qing; Yan, Yi; Huang, Chi‐Yue; Santosh, M.; Shan, Yehua; Chen, Wenhuang; Yu, Mengming; Qian, Kun

doi:10.1016/j.gr.2015.07.008

Cited by 40 publications

(57 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The off‐scraped material accumulates in an accretionary prism (accretionary wedge) located directly at the convergent boundary through frontal accretion and underplating (Meschede, ). An accretionary prism represents the key link between plate tectonics and orogenesis, and its structures and components can be used to clarify the geodynamic histories of convergent plates and the tectonic‐geomorphic evolution of adjacent areas (C. Y. Huang et al, ; Lan et al, ). More importantly, the accreted mafic rocks within accretionary prisms are the only acquirable samples of subducted oceanic crust and igneous seamounts; thus, they are valuable for revealing the mantle nature of convergent plates and constraining regional magmatic histories (Ker et al, ; Safonova et al, ).…”

Section: Introductionmentioning

confidence: 99%

Geochemistry and Geochronology of the Accreted Mafic Rocks From the Hengchun Peninsula, Southern Taiwan: Origin and Tectonic Implications

et al. 2019

Self Cite

View full text Add to dashboard Cite

The accretionary prism of the Hengchun Peninsula at the southernmost tip of the active Taiwan orogen has newly emerged due to the transition from a subduction zone to an arc‐continent collision zone. The mafic rocks within the Hengchun accretionary prism, whose provenance has long been controversial, are highly indicative of the mantle nature and tectonic evolution around the northern Manila Trench. Based on geochemical analyses, the accreted basalts are classified as normal and enriched mid‐ocean ridge basalts (N‐MORB and E‐MORB) and alkaline ocean island basalts. The N‐MORBs, which exhibit geochemical signatures indicative of virtually unmetasomatized depleted MORB mantle and yield zircon U‐Pb ages of 22.8 ± 0.3 and 24.2 ± 1.1 Ma, were off‐scraped from the subducted oceanic crust of the South China Sea (SCS). The alkaline ocean island basalts are considered fragments of subducted seamount due to their geochemical similarity with seamount basalts from the SCS. The Hf‐Nd isotopic compositions of basalts from the north SCS may represent the contributions of recycled oceanic crust and the upwelling Hainan Plume. The E‐MORBs, which exhibit similar geochemical compositions as rocks from the Huatung Basin and yield an 40Ar/39Ar age of 135.0 ± 5.6 Ma, were removed from the overriding plate due to the excessive shear stress between the converging plates and were laterally transported by strike‐slip movement; alternatively, they were off‐scraped from the subducted Luzon forearc slices. The temporary uplift and collapse of the accretionary prism caused by seamount subduction may have been responsible for the genesis of the lenticular Shihmen Conglomerate.

show abstract

Section: Introductionmentioning

confidence: 99%

Geochemistry and Geochronology of the Accreted Mafic Rocks From the Hengchun Peninsula, Southern Taiwan: Origin and Tectonic Implications

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…As for sedimentary compositions in the South China Sea region, their variations have been readily observed in the proxy of detrital zircon provenance. The provenance for the Cretaceous strata of the South China Sea region was mainly derived from nearby continental arcs, featuring a rather limited range of zircon ages with Yanshanian peaks, whereas the multimodal distribution and large range of zircon ages of the Eocene strata of the northeastern South China Sea region are compatible with the age signatures of modern drainage sediments from southeastern South China (Lan et al, ; Shao, Cao, et al, ; Suggate et al, ; Y. Yan, Yao, et al, ).…”

Section: Discussionmentioning

confidence: 93%

“…In the Taiwan region, the Lower–Middle Eocene strata have only been confirmed to include the Chungliao Formation in the Western Foothills, which is composed of thick layers of sandstones and thin interbeds of sandstones and shales containing the Middle Eocene foraminifers and calcareous nanoplanktons of Zones NP14‐15 (C.‐Y. Huang et al, ), and the Paileng Formation, which is composed of metasandstones interbedded with shales and slates, interpreted to be fluvial and swamp facies (Lan et al, ). The similar marine record has also been revealed in the Tainan Basin where borehole DP21‐1‐1, for the first time, encountered the Lower and Middle Eocene strata with abundant planktonic foraminifers, refuting the long‐held view of the Eocene hiatus in the Tainan Basin (Q. Li et al, ).…”

Section: Cretaceous–early Oligocene Sedimentary Evolutionmentioning

confidence: 99%

“…The contemporary strata have been well documented in Taiwan, including the Upper Eocene Hsitsun Formation and Szleng Sandstone of littoral facies, as well as the Lower Oligocene Kankou Formation and Shuichangliu Formation of shallow shelf to marine facies (Chung et al, ; C.‐Y. Huang et al, ; Lan et al, ). The Lower Oligocene strata revealed in the Tainan Basin were mostly littoral and shoal facies, whereas those in the Pearl River Mouth Basin were dominated by transitional facies (P. Wang & Li, ).…”

Section: Cretaceous–early Oligocene Sedimentary Evolutionmentioning

confidence: 99%

“…Unfortunately, the Mesozoic to Cenozoic sedimentary evolution of the South China Sea region is still far from being clearly understood, especially regarding (a) the age and nature of sedimentary basement of the South China Sea margins (Holloway, ; X. Sun et al, ; Yui et al, ), (b) the sedimentary response in forearc region to the intensive Mesozoic continental arc magmatism along the Palaeo‐Pacific margin (Hennig, Breitfeld, Hall, & Nugraha, ; C. Xu, Shi, Barnes, & Zhou, ; Q. Yan, Shi, & Castillo, ), (c) the complex source‐to‐sink and environmental evolutions during the episodic and diachronic rifting process (Galin, Breitfeld, Hall, & Sevastjanova, ; Shao et al, ; Shao et al, ), as well as (d) the Late Oligocene continental‐scale reorganization of drainage basins in South China and related provenance shift documented in river mouth basins (Cao, Shao, Qiao, Zhao, & van Hinsbergen, ; Lan et al, ; Lei, Clift, Ren, Ogg, & Tong, ; Shao et al, ). Addressing these issues normally encounters the following difficulties: (a) the relatively poor quality of seismic data and limited borehole penetration for deeply buried sediments, (b) the uncertainty in recognizing sedimentary facies due to strong deformation and metamorphism in convergent settings, (c) the lack of reliable regional stratigraphic framework because of the large amount of poorly dated sediments and their unchecked linages, (d) the scarcity of well‐preserved and dated igneous rocks particularly the Mesozoic and Cenozoic oceanic crusts, and (e) the painstaking work in integrating and reconciling the big data contributed by surrounding countries due to inconsistent nomenclature and language barrier during the literature review.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cretaceous–Palaeogene sedimentary evolution of the South China Sea region: A preliminary synthesis

et al. 2019

View full text Add to dashboard Cite

Rocks in extensional settings are generally sensitive to destruction and erosion, resulting in poor preservation potential and accumulation of their eroded components. The South China margin was dominated by a prolonged extensional setting from Late Mesozoic to Early Cenozoic, and this geological history is exactly archived in sediments within and surrounding the present South China Sea. However, the sedimentary evolution of the region, especially prior to the continental breakup and oceanic spreading, remains an issue of uncertainty and controversy, mostly due to limited borehole penetration and poor seismic reflection data for deeply buried sequences, as well as the lack of reliable regional stratigraphic framework. Here, we illustrate the Cretaceous–Palaeogene sedimentary evolution of the South China Sea region by synthesizing relevant data from previous literature and our own observations and displaying the evolution of lithofacies in sequential palinspastic reconstructions. The preferred palaeogeographic scenarios incorporate the latest interpretations of the conjugate relationship between continental margins as well as the birth and demise of the hypothetical Proto‐South China Sea. The patterns of lithofacies and depositional environments at regional scales, along with available provenance data, clearly reveal sedimentary responses to the significant Mesozoic–Cenozoic transition of plate geodynamics and magmatism along the Asian margin and provide implications for the potential mechanism of Cenozoic extension represented by distinct yet continuous processes of continental rifting and oceanic spreading.

show abstract

Evolving Yangtze River reconstructed by detrital zircon U‐Pb dating and petrographic analysis of Miocene marginal Sea sedimentary rocks of the Western Foothills and Hengchun Peninsula, Taiwan

et al. 2017

Self Cite

View full text Add to dashboard Cite

The timing of the establishment of the Yangtze River, whether prior to the early Miocene (~24 Ma) or more recently (~2 Ma), has been a point of much debate. Here we applied detrital zircon U‐Pb dating to Miocene sedimentary rocks from Taiwan and to estuary sands from modern rivers in SE China to trace sediment provenance and to further constrain the evolution of the Yangtze River. Detrital zircon U‐Pb ages from Miocene sandstones of the Western Foothills show similar age spectra to Miocene and modern sediments in the Yangtze River drainage and some similarity to the Minjiang River sediments. However, they differ significantly from ages in some sandstones from the Hengchun Peninsula accretionary prism and from the estuary sands of the Jiulongjiang River. This information, together with petrographic and sedimentary facies analysis, argues that the Jiulongjiang and Minjiang Rivers were major sources to some Hengchun Peninsula turbidites (~12 Ma), while synchronous sedimentation in the Western Foothills was supplied from the Yangtze, Minjiang (or similar river), and possibly even the Yellow River. These sediments were transported southward/eastward via rivers or channels to the marginal sedimentary basins now inverted in the Western Foothills in Taiwan. The Yangtze River must have been established prior to the middle Miocene.

show abstract

Topographic architecture and drainage reorganization in Southeast China: Zircon U-Pb chronology and Hf isotope evidence from Taiwan

Cited by 40 publications

References 72 publications

Geochemistry and Geochronology of the Accreted Mafic Rocks From the Hengchun Peninsula, Southern Taiwan: Origin and Tectonic Implications

Geochemistry and Geochronology of the Accreted Mafic Rocks From the Hengchun Peninsula, Southern Taiwan: Origin and Tectonic Implications

Cretaceous–Palaeogene sedimentary evolution of the South China Sea region: A preliminary synthesis

Evolving Yangtze River reconstructed by detrital zircon U‐Pb dating and petrographic analysis of Miocene marginal Sea sedimentary rocks of the Western Foothills and Hengchun Peninsula, Taiwan

Contact Info

Product

Resources

About