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Geologic Development of the Truong Son Fold Belt In Central Vietnam - Study on the Evolution of Asian Continent (IGCP-411) -

Research Project

Project/Area Number 12573010
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Geology
Research InstitutionKobe University

Principal Investigator

HADA Shigeki  Research Institute for Higher Education Professor, 大学教育研究センター, 教授 (40036554)

Co-Investigator(Kenkyū-buntansha) YOSHIDA Kohki  Faculty of Science, Shinshu University Assistant, 理学部, 助手 (00303446)
OTOFUJI Yoichiro  Faculty of Science Professor, 理学部, 教授 (90160895)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 2002: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2001: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2000: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsKurosegawa Terrane / Indochina Continental Block / South China Continental Block / Suture Zone / Evolution of Continent / Paleomagnetism / Sedimentary Petrology / Biostratigraphy / ヴェトナム / テクトニクス / 大陸衝突 / 古地磁気 / 古生代 / ソン・マ縫合帯 / 中生代 / 新生代
Research Abstract

The purpose of this project is to clarify the tectonic evolution of Asian Continent that was formed by the complicated process started from the dispersion of Gondwanaland in the relation with the development of Japanese Islands. It is considered that the clarification of the tectonics of the orogenic belts in Vietnam is a key to this purpose. Japanese member of the project did the geological survey in the following areas by the assistance of Vietnam geologists; structural analysis and sampling of granitic rocks for age determination in the Son Ma Suture Zone, and sampling for paleomagnetic study in both sides of the Red River Fault (2000), sedimentary petrological study in the Truong Son Fold Belt and paleontological and structural study in northern Vietnam (2001), and tectonic analysis of the relationship between Indochina Block and adjacent blocks in Vietnam. The results of the geological survey are as follows; 1) Northern side of the red River Fault in Vietnam is divided into two bl … More ocks by the suture zone which is a southern extension from the South China Block. 2) Zone consisting of accretionary complex of ocean plate materials are recognized southern side of the Truong Son Fold Belt and its vergence is toward northeast. 3) Southeastern boundary of the Indochina Block does not exist inside Vietnam.
Paleomagnetic, biostratigraphic and chronological, and sedimentary petrological studies are going on concerning samples collected from the areas mentioned above. Until now, the following points are made clear, 1) The corresponding poles in Cretaceous at two localities in the both sides of the Red River Fault are statistically indistinguishable from each other. 2) Accretionary Complex in the southern side of the Son Ma Suture Zone yields Devonian conodonts so that the continental fragment in the northern side of the Son Ma Suture Zone drifted from the Gondwanaland at least in Devonian. 3) Age of three granitic sample including plagiogranites (?) from the Son Ma Suture Zone is 238.9+/-1.8 Ma (Middle Triassic), 280.7+/-3.9 Ma (Early Permian) and 256.1+/-1.2 Ma (Middle Permian). 4) Suture zone between the Cathaysia and Yantze blocks in northeastern Vietnam is also contains Devonian conodonts. 4) On the basis of the sandstone petrography and geochemistry, the provenance in the Middle-Upper Paleozoic sequence in the Truong Son Fold Belt reveals the formation of the immature magmatic arc and distinct change of the provenance is considered as important scheme of Paleozoic tectonic development in northern Vietnam and adjacent terranes.
From above-mentioned results of the study, we could indicate the following points at this stage. 1) The Truong Son Fold Belt is a suture zone between the Indochina and South China Continental Blocks. 2) Northern boundary of the Truong Son Suture Zone is the Son Ma Suture Zone and its southern boundary may be correspond to the Danang Fault. 3) Truong Son Suture Zone includes relicts of ocean-plate and island arc. 4) South China Continental Block in Vietnam is composed of Yantze and Cathaysia Blocks. Less

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Hada, S.: "U-Pb zircon ages for the Mitaki igneous rocks, Siluro-Devonian tuff, and granitic boulders in the Kurosegawa Terrane, Southwest Japan"Memoirs of the Geological Society of Japan. No.56. 183-198 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hada, S.: "Kurosegawa Terrane in SW Japan : Disrupted Remnants of a Gondwana-Derived Terrane"Gondwana Research. 4(1). 27-38 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sato, S.: "Tertiary paleomagnetic data from northwestern Yunnan, China : further evidence for large clockwise rotation of Indochina block and its tectonic implication"Earth and Planetary Science Letters. 185. 185-198 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yang, Z.: "Discrepant Cretaceous paleomagnetic poles between Eastern China and Indochina : a consequence of the extrusion of Indochina"Tectonophysics. 334. 101-113 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Cawood, PA.: "Permian fragmentation, accretion and subsequent translation of a low-latitude Tethyan seamount to the high-latitude east Gondwana margin"Geological Magazine. 139(2). 131-144 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 波田重煕: "ペルム紀紡錘虫類と黒瀬川地帯の起源"兵庫地学. No.46. 9-20 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hada, S.: "U-Pb zircon ages for the Mitaki igneous rocks, Silulo-Dovonian tuff, and granitic boulders in the Kurosegawa Terrane, Southwest Japan"Memoir of the Geological Society of Japan. No. 56. 183-198 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hada, S.: "Kurosegawa Terrane in Southwest Japan: Disrupted Remnants of a Gondwana-Derived Terranes"Gondwana research. 4 (1). 27-38 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sato, S.: "Tertiary paleomagnetic data from northwestern Yunnan, China: further evidence for large clockwise rotation of Indochina block and its tectonic implication"Earth and Planetary Science Letters. 185. 185-198 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yang, Z.: "Discrepant Cretaceous paleomagnetic poles between Eastern China and Indochina: a consequence of extrusion of Indochina"Tectonophysics. 334. 101-113 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Cawood, P. A.: "Permian fragmentation, accretion and subsequent translation of a low-latitude Tethyan seamount to the high-latitude east Gondwana margin"Geologic Magazine. 139 (2). 131-144 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hada, S.: "Permian Fusulinaceans and Origin of the Kurosegawa Terrane"Hyogo-Tigaku. No. 46. 9-20 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hada, S.: "U-Pb zircon ages for the Mitaki igneous rocks, Siluro-Devonian tuff, and granitic boulders in the Kurosegawa Terrane, Southwest Japan"Memoirs of the Geological Society of Japan. No.56. 183-198 (2000)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hada, S.: "Kurosegawa Terrane in Southwest Japan : Disrupted Remnants of a Gondwana-Derived Terrane"Gondwana Research. 4(1). 27-38 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sato, S.: "Tertiary paleomagnetic data from northwestern Yunnan, China : further evidence for large clockwise rotation of Indochina block and its tectonic implication"Earth and Planetary Science Letters. 185. 185-198 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yang, Z.: "Discrepant Cretaceous paleomagnetic poles between Eastern China and Indochina : a consequence of the extrusion of Indochina"Tectonophysics. 334. 101-113 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Cawood, P.A.: "Permian fragmentation, accretion and subsequent translation of a low-latitude Tethyan seamount to the high-latitude east Gondwana margin"Geological Magazine. 139(2). 131-144 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 波田重煕: "ペルム紀紡錘虫類と黒瀬川地帯の起源"兵庫地学. No.46. 9-20 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Shigeki HADA: "Crustal evolution in south and southeast Asia"Gondwana Research. Vol.4,No.1. 3-3 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shigeki HADA: "Kurosegawa Terrane in Southwest Japan : Disrupted remnants of a Gondwana-derived terrane"Gondwana Research. Vol.4,No.1. 27-38 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shigeki HADA: "Large-scale translation of accreted terranes along continental margin"Gondwana Research. Vol.4,No.4. 628-629 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Bunopas, S.: "Growth of Asia in the Late Triassic Ccntinent-continent collision of Shan-Thai and Indochina against South China"Gondwana Research. Vol.4,No.4. 584-585 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Panjasawatwong, Y.: "Tectonic setting of formation of Permo-Triassic Chiang Khong volcanics, Northerr Thailand"Gondwana Research. Vol.4,No.4. 728-729 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shigeki HADA et al. (eds): "Crustal Evolution in South and Southeast Asia (Gondwana Research, vol.4, no.1)"International Association for Gondwana Research. 61 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shigeki HADA: "Kurosegawa Terrane in Southwest Japan : Disrupted Remnants of a Gondwana-Derived Terrane"Gondwana Research. Vol.4 No.1. 27-38 (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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