Data report; A brittle (normal?) shear zone from Hole C0002P; deformation structures and their relationship with calcite veins (IODP Expedition 348, Nankai Trough accretionary prism)

Online Access: Get full text
doi: 10.2204/iodp.proc.348.205.2017
Author(s): Crespo-Blanc, Ana
Integrated Ocean Drilling Program, Expedition 348 Scientists, College Station, TX
Author Affiliation(s): Primary:
Universidad de Granada, Instituto Andaluz Ciencias de la Tierra, Granada, Spain
Volume Title: Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 3; NanTroSEIZE plate boundary deep riser 3; Expedition 348 of the riser drilling platform from and to Shimizu, Japan; Site C0002, 13 September 2013-20 January 2014
Volume Author(s): Tobin, Harold; Hirose, Takehiro; Saffer, Demian; Toczko, Sean; Maeda, Lena; Kubo, Yusuke; Sanada, Yoshinori; Kido, Yukari; Hamada, Yohei; Boston, Brian; Broderick, Aisling; Brown, Kevin; Crespo-Blanc, Ana; Even, Emilie; Fuchida, Shigeshi; Fukuchi, Rina; Hammerschmidt, Sebastian; Henry, Pierre; Josh, Matthew; Jurado, María José; Kitajima, Hiroko; Kitamura, Manami; Maia, Ana; Otsubo, Makoto; Sample, James; Schleicher, Anja; Sone, Hiroki; Song, Chen; Valdez, Robert; Yamamoto, Yuzuru; Yang, Kiho
Source: Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 3; NanTroSEIZE plate boundary deep riser 3; Expedition 348 of the riser drilling platform from and to Shimizu, Japan; Site C0002, 13 September 2013-20 January 2014, Harold Tobin, Takehiro Hirose, Demian Saffer, Sean Toczko, Lena Maeda, Yusuke Kubo, Yoshinori Sanada, Yukari Kido, Yohei Hamada, Brian Boston, Aisling Broderick, Kevin Brown, Ana Crespo-Blanc, Emilie Even, Shigeshi Fuchida, Rina Fukuchi, Sebastian Hammerschmidt, Pierre Henry, Matthew Josh, María José Jurado, Hiroko Kitajima, Manami Kitamura, Ana Maia, Makoto Otsubo, James Sample, Anja Schleicher, Hiroki Sone, Chen Song, Robert Valdez, Yuzuru Yamamoto and Kiho Yang; Integrated Ocean Drilling Program, Expedition 348 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program, Vol.348, 25p. Publisher: International Ocean Discovery Program, Washington, DC, United States. ISSN: 1930-1014 CODEN: IDSDA6
Note: In English. 16 refs.; illus., incl. sketch map
Summary: A brittle shear zone was sampled from Hole C0002P in the Nankai accretionary prism during Integrated Ocean Drilling Program Expedition 348. Macro- and microscopic structures observed both in the core and the covered petrographic thin sections of this fault zone permit characterization of the deformation during faulting. The observed kinematic indicators are coherent with an apparent normal fault sense with respect to its present-day position. Calcite veins are restricted to the most damaged interval of the cored fault. Descriptions of the vein geometry and relationship with the cataclastic foliation present in the fault suggest that these are extension veins that opened during a crack-seal. The various generations of veins suggest that a reiterative history of brecciation and veining took place.
Year of Publication: 2017
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 16 Structural Geology; Accretionary wedges; Boreholes; Brecciation; Brittle deformation; Calcite; Carbonates; Cataclasis; Cenozoic; Clastic rocks; Claystone; Cores; Deformation; Expedition 348; Faults; Foliation; IODP Site C0002; Integrated Ocean Drilling Program; Kumano Basin; Microstructure; NanTroSEIZE; Neogene; Normal faults; North Pacific; Northwest Pacific; Pacific Ocean; Sedimentary rocks; Shear zones; Structural analysis; Tertiary; Thin sections; Veins; West Pacific
Coordinates: N331800 N331801 E1363801 E1363800
Record ID: 2017037736
Copyright Information: GeoRef, Copyright 2018 American Geosciences Institute.