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  1. NTU Scholars
  2. 理學院
  3. 海洋研究所
Please use this identifier to cite or link to this item: https://scholars.lib.ntu.edu.tw/handle/123456789/411123
DC FieldValueLanguage
dc.contributor.authorChen, Cheng Hongen_US
dc.contributor.authorLee, Chi Yuen_US
dc.contributor.authorLin, Jian Weien_US
dc.contributor.authorMEI-FEI CHUen_US
dc.creatorMEI-FEI CHU;Lin, Jian Wei;Lee, Chi Yu;Chen, Cheng Hong-
dc.date.accessioned2019-06-18T05:36:23Z-
dc.date.available2019-06-18T05:36:23Z-
dc.date.issued2019-03-01-
dc.identifier.issn00128252-
dc.identifier.urihttps://scholars.lib.ntu.edu.tw/handle/123456789/411123-
dc.descriptionArticle Type: Reviewen_US
dc.description.abstract© 2018 Elsevier B.V. The provenance of sediments in western Taiwan has been the subject of debate in recent years. Previous investigators, solely based on the U-Pb zircon geochronology for the detrital grains, all advocated the important roles, but with varying emphasis, of drainage systems in the South China Block. Influence of the Changjiang (Yangtze) River from the far-source Yangtze block versus nearby systems like Zhujiang, Minjiang and Jiulongjiang Rivers in the Cathaysia block has been the main issue. However, the fundamental question of whether the provenance is really the South China Block has never been evaluated. Here we report both the U-Pb zircon and Electron MicroProbe (EMP) monazite age data for seven sediment samples from two sides of the Taiwan Strait and synthesize the published data for all these rivers and sedimentary strata in western Taiwan to tackle this problem. The lack of, or insufficient, ~1.8 Ga monazites in the sediments of river mouths for all drainage systems in the South China Block makes them unlikely to be the source of Miocene sediments in western Taiwan where ~1.8 Ga monazite grains occupy 14.5–33.3% of the total age population. With reference to the tectonic evolution of the coastal southeast China-Taiwan region during Early Cretaceous to recent time, we propose a new explanation that invokes a now-concealed microcontinent along the Manila Trench. This microcontinent, probably related to a Paleoproterozoic orogen in Gondwana, eventually collided with the South China Block causing uplift of the easternmost structural element—the Pingtan-Dongshan Metamorphic Belt (PDMB) at ca. 130–120 Ma. It then drifted away sometime after 100 Ma and split into two parts with one becoming today's Palawan-Mindoro terrain of the Philippines. As indicated by the geophysical data near southern Taiwan, the remainder of this split microcontinent had subducted underneath the Philippine Sea plate along Manila Trench as a result of the opening of the South China Sea at ~33 Ma. Both the Peikang and Kuanyin basement highs in the offshore western Taiwan represent the unsubducted remnants of this microcontinent and also the major suppliers of Late Oligocene-Miocene sediments in western Taiwan. On the other hand, the Eocene-Early Oligocene strata of the Hsuehshan Range in central Taiwan show both zircon and monazite age patterns resembling the Eocene-Early Oligocene and recent sediments of the Zhujiang drainage system, indicating the southwestern origin of the protolith Taiwan. This scenario also matches the recent proposition that part of the Central Range belongs to the deep-level accretionary prism of a Miocene subduction system.en_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofEarth-Science Reviewsen_US
dc.subjectConcealed microcontinent | EMP monazite ages | South China provenance | Subduction of fractured continent crust | Western Taiwan sedimentsen_US
dc.titleProvenance of sediments in western Foothills and Hsuehshan Range (Taiwan): A new view based on the EMP monazite versus LA-ICPMS zircon geochronology of detrital grainsen_US
dc.typejournal articleen_US
dc.identifier.doihttps://api.elsevier.com/content/abstract/scopus_id/85059182312-
dc.identifier.doi10.1016/j.earscirev.2018.12.015-
dc.identifier.scopus2-s2.0-85059182312-
dc.identifier.isiWOS:000462803000010-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85059182312-
dc.relation.pages224en_US
dc.relation.journalvolume190en_US
dc.relation.pageend246en_US
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.openairetypejournal article-
crisitem.author.deptGeosciences-
crisitem.author.orcid0000-0002-3283-3811-
crisitem.author.parentorgCollege of Science-
Appears in Collections:海洋研究所
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臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

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