Outline of Session

Solid Earth Sciences(S) / Complex & General(CG)
S-CG71 Formation, subduction and true growth of continental crust


Short title True continental growth
Oral presentation
Date/Room/Chair
May 21 PM2 (15:30 - 17:15) 103 Shinji Yamamoto  / Tsuyoshi Komiya 
Poster presentation
Date/Room
May 21 (Core Time 17:15 - 18:30)  
Contact Shinji Yamamoto
Email syamamot@ea.c.u-tokyo.ac.jp
Convener Shinji Yamamoto  / Tsuyoshi Komiya  / Kenji Kawai 
Scope Continental crust is the key and unique system of the Earth, thus its formation and growth strongly affect not only dynamics and evolution of the solid Earth but also climate and biological evolution on the surface. However, human knowledge is too far from the understanding. Previous works emphasized that the continental crust has progressively grown through geologic time. But, recent geology of Archean terranes, geochemistry of detrital materials and comprehensive study of subduction zone allow us to build a new concept of true continental growth. In this session, we welcome wide range topics of geology, mineralogy, geochemistry, geophysics, experimental petrology and surface environmental evolution for more comprehensive study of the continental growth from the Hadean to the present.
Notes  


Time Presentation No Title Author Presenter Abstract
Oral Presentation   May 21 PM2 (15:30-17:15) 103                              to the top
15:30 - 15:45 3-min talk in an oral session
Presentation No Title Author Presenter Abstract
SCG71-P01 Geology of the Nain complex in Labrador, Canada: Discovery of the oldest oceanic crust Tsuyoshi Komiya
Masanori Shimojo
Shinji Yamamoto
other
Tsuyoshi Komiya English
SCG71-P02 Type of granite complex intrusion in East Pilbara terrane based on foliation pattern diagram around intrusion body Taroujirou Matumura
Toshiaki Masuda
Taroujirou Matumura English
SCG71-P03 Petrogenesis of the ridge subduction-related granitoids from the Taitao Peninsula, Chile Triple Junction Area Yoshiaki Kon
Tsuyoshi Komiya
Ryo Anma
other
Yoshiaki Kon English
SCG71-P04 Tectonic erosion in Pacific-type orogenic belt: zircon response to Cretaceous tectonics in Japan Kazumasa Aoki
Yukio Isozaki
Shinji Yamamoto
other
Kazumasa Aoki English
15:45 - 16:00 SCG71-01 Early Archean magmatic events of the Nain Complex, northern Labrador, Canada Masanori Shimojo
Shinji Yamamoto
Kenshi Maki
other
Masanori Shimojo English
16:00 - 16:15 SCG71-02 Zircon U-Pb dating from the mafic enclaves and tonalite in Tanzawa Plutonic Complex, Izu arc, Japan Kazue Suzuki
Shinji Yamamoto
Yibing Li
other
Kazue Suzuki English
16:15 - 16:30 SCG71-03 U-Pb ages of detrital zircons in the Ryoke metamorphic rocks and their geological implication Takashi Nakajima
Yuji Orihashi
Takashi Nakajima English
16:30 - 16:45 SCG71-04 Negative growth of the continental crust at present: Significance of tectonic erosion and arc subduction Shinji Yamamoto
Shigenori Maruyama
Shinji Yamamoto English
16:45 - 17:00 SCG71-05 Three-layers model of continent and whole mantle dynamics through time Shigenori Maruyama
Kenji Kawai
Taku Tsuchiya
other
Shigenori Maruyama English
17:00 - 17:15 SCG71-06 Contribution of heat source around the mantle transition zone on continental drift Hiroki Ichikawa
Masanori Kameyama
Kenji Kawai
Hiroki Ichikawa English


Presentation No Title Author Presenter Abstract
Poster Presentation   May 21  Core Time (17:15-18:30)                     to the top
SCG71-P01 Geology of the Nain complex in Labrador, Canada: Discovery of the oldest oceanic crust Tsuyoshi Komiya
Masanori Shimojo
Shinji Yamamoto
other
Tsuyoshi Komiya English
SCG71-P02 Type of granite complex intrusion in East Pilbara terrane based on foliation pattern diagram around intrusion body Taroujirou Matumura
Toshiaki Masuda
Taroujirou Matumura English
SCG71-P03 Petrogenesis of the ridge subduction-related granitoids from the Taitao Peninsula, Chile Triple Junction Area Yoshiaki Kon
Tsuyoshi Komiya
Ryo Anma
other
Yoshiaki Kon English
SCG71-P04 Tectonic erosion in Pacific-type orogenic belt: zircon response to Cretaceous tectonics in Japan Kazumasa Aoki
Yukio Isozaki
Shinji Yamamoto
other
Kazumasa Aoki English
SCG71-P05 Highly siderophile elements in 3.8 Ga ultramafic rocks from Labrador, Canada Akira Ishikawa
Masanori Shimojo
Katsuhiko Suzuki
other
Akira Ishikawa English
SCG71-P06 The second continent model Kenji Kawai
Shinji Yamamoto
Taku Tsuchiya
other
Kenji Kawai English
SCG71-P07 Evolution of the lower crust under southwest Japan constrained from ages of zircon in the xenolith Keiko Koshida
Hikaru Iwamori
Takafumi Hirata
Keiko Koshida English