An integrated study of Paleo- and Neoproterozoic orogenic processes at the Tanzanian craton margin

• Project/Area Number: 24403010
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Geology
• Research Institution: Okayama University
• Principal Investigator: TSUJIMORI Tatsuki 岡山大学, 地球物質科学研究センター, 准教授 (00436833)
• Co-Investigator(Kenkyū-buntansha): OTA Tsutomu 岡山大学, 地球物質科学研究センター, 助教 (80379817) ; KOBAYASHI Katsura 岡山大学, 地球物質科学研究センター, 准教授 (20325129)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000); Fiscal Year 2014: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2013: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2012: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
• Keywords: 大陸地塊 / タンザニア地塊 / 原生代造山帯 / 古原生代エクロジャイト / 野外地質学 / 変成岩岩石学 / タンザニア / 東アフリカ / 大陸地殻 / 原生代造 / ジルコン年代学

Outline of Final Research Achievements

High-pressure metamorphic rocks occurring sporadically around the Archean Tanzanian craton record a crustal evolution related to Paleo- and Neoproterozoic orogeny. Our integrated studies confirmed that the Paleoproterozoic subduction-related units including eclogite-bearing high-pressure intermediate-type metamorphic belt and coeval paired granitic batholiths are overprinted significantly by a Pan-African granulite-facies regional metamorphism and deformation. The Pan-African events intrusions played the most important role in the crustal evolution.

Research Products

• [Journal Article] Jadeitites and plate tectonics (2015)
  • Author(s): Harlow G.E., Tsujimori T., Sorensen S.S.
  • Journal Title: Annual Review of Earth and Planetary Sciences Volume: 43 Issue: 1 Pages: 105-138
  • DOI: 10.1146/annurev-earth-060614-105215
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Lawsonite blueschists and lawsonite eclogites as proxies for paleo-subduction zone processes: A review (2014)
  • Author(s): Tsujimori T., Ernst W.G.
  • Journal Title: Journal of Metamorphic Geology Volume: 32 Issue: 5 Pages: 437-454
  • DOI: 10.1111/jmg.12057
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Petrogenesis and chemogenesis of oceanic and continental orogens in Asia: Current topics (2014)
  • Author(s): Rehman H.U., Tsujimori T., Okamoto K., Spengler D.
  • Journal Title: Island Arc Volume: 23 Issue: 4 Pages: 437-454
  • DOI: 10.1111/iar.12097
  • Peer Reviewed
• [Journal Article] Oxygen isotopes in Indian Plate eclogites (Kaghan Valley, Pakistan): negative δ18O values from a high latitude protolith reset by Himalayan metamorphism (2014)
  • Author(s): Rehman H. U., Tanaka R., O'Brien P.J., Kobayashi K., Tsujimori T., Nakamura E., Yamamoto H., Khan T., Kaneko Y.
  • Journal Title: Lithos Volume: 208-209 Pages: 471-483
  • DOI: 10.1016/j.lithos.2014.09.007
  • Peer Reviewed
• [Journal Article] Rare earth element–SiO2 systematics of island arc crustal amphibolite migmatites from the Asago body of the Yakuno Ophiolite, Japan: a field evaluation of some model predictions (2014)
  • Author(s): Pu X.-F., Brophy J.G., Tsujimori T.
  • Journal Title: Contributions to Mineralogy and Petrology Volume: 168 Issue: 3
  • DOI: 10.1007/s00410-014-1060-0
  • Peer Reviewed
• [Journal Article] Recycling of crustal materials through study of ultrahigh-pressure minerals in collisional orogens, ophiolites, and mantle xenoliths: A Review (2014)
  • Author(s): Liou J.G., Tsujimori T., Yang J.S., Zhang R.Y., Ernst W.G.
  • Journal Title: Journal of Asian Earth Sciences Volume: 96 Pages: 386-420
  • DOI: 10.1016/j.jseaes.2014.09.011
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The fate of subducted continental crust: Evidence from recycled UHP-UHT minerals (2013)
  • Author(s): Liou J. G., Tsujimori T.
  • Journal Title: Elements Volume: 9 Issue: 4 Pages: 248-250
  • DOI: 10.2113/gselements.9.4.248
  • Peer Reviewed
• [Journal Article] Plate tectonic gemstones (2013)
  • Author(s): Stern R. J., Tsujimori T., Harlow G. E., Groat L. A.
  • Journal Title: Geology Volume: (in press) Issue: 7 Pages: 723-726
  • DOI: 10.1130/g34204.1
  • Peer Reviewed
• [Journal Article] Ion microprobe U-Th-Pb geochronology and study of micro-inclusions in zircon from the Himalayan high- and ultrahigh-pressure eclogites, Kaghan Valley of Pakistan (2013)
  • Author(s): Rehman H. U., Kobayashi K., Tsujimori T., Ota T., Yamamoto H., Nakamura E., Kaneko Y., Khan T., Terabayashi M., Yoshida K., Hirajima T.
  • Journal Title: Journal of Asian Earth Sciences Volume: 63 Pages: 179-196
  • Peer Reviewed
• [Journal Article] Metamorphic history of glaucophane-paragonite-zoisite eclogites from the Shanderman area, northern Iran (2013)
  • Author(s): Omrani H., Moazzen M., Oberhansli R., Tsujimori T., Bousquet R., Moayyed M.
  • Journal Title: Journal of Metamorphic Geology Volume: 31 Issue: 8 Pages: 791-812
  • DOI: 10.1111/jmg.12045
• [Journal Article] Deformation fabrics of natural blueschists and implications for seismic anisotropy in subducting oceanic crust (2013)
  • Author(s): Kim, D., Katayama, I., Michibayashi, K. and Tsujimori, T.
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 222 Pages: 8-21
  • DOI: 10.1016/j.pepi.2013.06.011
  • Peer Reviewed
• [Journal Article] Tectono-metamorphic evolution of high P/T and low-P/T metamorphic rocks in the Tia complex, southern New England fold belt, eastern Australia: Insights from K-Ar chronology (2012)
  • Author(s): Fukui S., Tsujimori T., Watanabe T., Itaya T
  • Journal Title: Journal of Asian Earth Sciences Volume: v. 59, no. 1 Pages: 62-69
  • DOI: 10.1016/j.jseaes.2012.05.022
  • Peer Reviewed
• [Journal Article] Introduction-Jadeitite : new occurrences, new data, new interpretatious- (2012)
  • Author(s): Harlow G.E., Tsujimori T., Sorensen S.S.
  • Journal Title: European Journal of Mineralogy Volume: 24 Issue: 2 Pages: 371-390
  • DOI: 10.1127/0935-1221/2012/0024-2196
  • Peer Reviewed
• [Journal Article] Sm-Nd and Lu-Hf isotope geochemistry of the Himalayan high- and ultrahigh-pressure eclogites, Kaghan valley, Pakistan (2012)
  • Author(s): Rehman H. U., Kobayashi K., Tsujimori T., Ota T., Yamamoto H., Nakamura E., Kaneko Y., Khan T
  • Journal Title: inPanagiotaras D., ed., Geochemistry - Earth's System Processes: Rijeka, Croatia, InTech Pages: 105-126
  • DOI: 10.5772/32859
  • ISBN: 9789535105862
  • Peer Reviewed
• [Journal Article] Minerals, rocks, and mountains: Linking petrology, geochemistry, and geochronology (2012)
  • Author(s): Rehman H. U., Tsujimori T., Tsai C. H.
  • Journal Title: Journal of Asian Earth Sciences Volume: v. 59, no. 1 Pages: 1-2
  • DOI: 10.1016/j.jseaes.2012.07.015
  • Peer Reviewed
• [Journal Article] Japan and the 250 Ma Continental Collision Belt in East Asia: Yaeyama Promontory Hypothesis Revisited (2012)
  • Author(s): 石渡明, 辻森樹
  • Journal Title: Journal of Geography (Chigaku Zasshi) Volume: 121 Issue: 3 Pages: 460-470
  • DOI: 10.5026/jgeography.121.460
  • NAID: 10031146386
  • ISSN: 0022-135X, 1884-0884
  • Peer Reviewed
• [Presentation] The importance of HP/LT and UHP/MT rocks and minerals for understanding when plate tectonics began (2014)
  • Author(s): Stern R.J., Tsujimori T.
  • Organizer: Geological Society of America Annual Meeting
  • Place of Presentation: Vancouver, Canada
  • Year and Date: 2014-10-19 – 2014-10-22
  • Invited
• [Presentation] Dating of Proterozoic orogenic events around the Tanzania Craton: New insights from in-situ zircon and monazite geochronology (2014)
  • Author(s): Boniface N., Tsujimori T.
  • Organizer: International Mineralogical Association General Meeting
  • Place of Presentation: Gauteng, South Africa
  • Year and Date: 2014-09-01 – 2014-09-05
• [Presentation] What do the negative d-18O values in Himalayan UHP eclogites reveal? (2013)
  • Author(s): Rehman H. R. , Tanaka R., O’Brien P. J., Kobayashi K., Tsujimori T., Nakamura E., Yamamoto H., Khan T.
  • Organizer: International Eclogite Conference
  • Place of Presentation: Courmayeur, Italy
• [Presentation] Ophiolites and blueschists: Current petrologic image of the Pacific-type subduction zones 50 years after Coleman’s (2013)
  • Author(s): Tsujimori T.
  • Organizer: 日本地質学会
  • Place of Presentation: 仙台
  • Invited
• [Presentation] Petrographical records of multiple fluid-infiltration during HP-LT metamorphism (2013)
  • Author(s): Tsujimori T.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Invited
• [Presentation] Recycling of UHP-UHT minerals: The fate of subducted continental crust (2013)
  • Author(s): Liou, J.G., Tsujimori T.
  • Organizer: GSA Cordilleran Section Meeting
  • Place of Presentation: Fresno, USA
• [Presentation] Lawsonite blueschists and lawsonite eclogites as proxies for paleo-subduction zone processes (2013)
  • Author(s): Tsujimori T., Ernst W.G.
  • Organizer: GSA Annual Meeting
  • Place of Presentation: Colorado, USA
• [Presentation] Tectoncrmetamorphic evolution of high P/T and low-P/T metamorphic rocks in the Tia complex, southern New England Fold Belt, eastern Australia (2012)
  • Author(s): Fukui S. Tsujimori T., Watanabe T, Itaya T.
  • Organizer: 34th International Geological Congress
  • Place of Presentation: ブリスベン(オーストラリア)
• [Presentation] 古生代前期深成岩-変成岩類の年代学的再検討 (2012)
  • Author(s): 宮下敦, 辻森樹
  • Organizer: 日本地質学会第119年学術大会
  • Place of Presentation: 大阪(大阪府)