Last Update: 2011/05/13/a>

Date Title
2011/05/13 The rock samples collected in NT10-13Leg2 (Seamounts in Mariana Arc) are resistered.
2011/05/09 The rock samples collected in KR11-04Leg2 (Off Kumanonada, Nankai Trough) are resistered.
2011/03/24 Due to system maintenance, "Quick Search by Area" will be temporally out of service from Mar. 24 through 30, 2011. As soon as maintenance is over, service will be resumed.
2011/02/10 The rock samples collected in YK07-14 (Kushiro Canyon) are resistered.
2011/01/25 Due to system maintenance, "Quick Search by Area" will be temporally out of service from Jan. 27 through 30, 2011.
2011/01/14 The rock samples collected in YK10-14 (West Philippine Basin and Palau Basin) are resistered.
2010/12/17 The rock samples collected in YK10-13Leg1 (Southern Mariana Trough) and YK10-13Leg2 (Omachi Seamount) are resistered.
2010/11/26 The rock samples collected in YK10-10 and YK10-11 (Southern Mariana Trough) are resistered.
2010/11/12 The rock samples collected in NT10-16 (Okinawa Trough) are resistered.
2010/11/08 The rock samples collected in NATSUSHIMA84 (Tonga Arc) and YOKOSUKA90 (North Fiji Basin) are registered.
2010/10/26 The rock samples collected in NT10-15Leg3 (Sagami Bay) are registered.
2010/10/14 The rock samples collected in NT10-10Leg2 (Japan Sea), NT10-12 (Mariana Arc) and YK10-09 (Nankai Trough) are registered.
2010/09/08 The rock samples collected in NT10-11 (#5 Takuyo Seamount) are registered
2010/08/10 The rock samples collected in YK10-05 (Off Minami-Torishima Island) are registered.
2010/08/02 The rock samples collected in NT08-14 (Off Ishigaki Island) and NT07-15 (Izu-Bonin Arc) are registered.
2010/07/21 The rock samples collected in NT10-07Leg1 (Ryukyu Trench) are registered.
2010/07/14 The rock samples collected in YK10-04 (Amami Plateau, Daito Ridge and Oki-Daito Ridge, West Philippine Basin) are registered.
2010/06/16 The rock samples collected in NT10-06Leg2 (Daiichi Tarama Seamount, Okinawa Trough) are registered.
2010/06/14 The rock samples collected in KR00-03Leg2 (Mariana Trough, Mariana Trench and Parece Vela Basin) are registered.
2010/06/09 The rock samples collected in NT07-07 (Suiyo Seamount) are registered.
2010/05/14 The rock samples collected in NT09-02Leg2 (#5 Takuyo Seamount) are registered.
2010/04/01 The geochemical data published in "Hawaiian Volcanoes: deep underwater perspectives" (2002, Geophysical Monograph: 128, Takahashi et al. (edts.)) are registered. This volume contains the comprehensive results using many geological samples and geophysical data obtained in JAMSTEC Hawaiian cruises.
2010/03/11 The rock samples collected in Y91-03 (Fiji Basin), KR97-02Leg3 (Zenisu Ridge), NT04-03Leg2 (Okinawa Trough and Kuroshima Knoll) and NT05-16 (South Hiyoshi Seamount) are registered.
2010/03/05 The petrological and mineralogical data published in JAMSTEC Journal of Deep Sea Research (Vol. 1-24) are resistered.
2010/03/05 The rock samples collected in NT98-09Leg2 (Okinawa Trough and Off Kikai Island) and NT01-05Leg1, Leg2 (Okinawa Trough and Kuroshima Knoll) were registered.
2010/02/17 The rock samples collected in YK09-13Leg2 (Central Indian Ridge) were registered.
2010/02/01 The geochemical data of the rocks collected in YK04-07 (East Pacific Rise) were registered (Geshi et al. (2007)).
2010/02/01 The geochemical data of the rocks collected in YK05-16 (Central Indian Ridge) were registered (Nakamura et al. (2007), Kumagai et al. (2008) and Morishita et al. (2009)).
2010/01/12 The samples collected in KR06-15Leg1 (Mariana Trench), KR06-16 (Lyra Basin) and NT06-21Leg2 (Izu-Bonin Arc) were registered.
2009/12/25 The samples collected in YK09-05 (Parece Vela Basin) were registered.
2009/12/03 The samples collected in NT09-17Leg1 (Miyako-Sone, Ryukyu Arc) were registered.
2009/11/26 The samples collected in KR99-10 (West Philippine Basin),YK05-09Leg2 (Southern Mariana Trough) and YK06-14Leg1 & Leg2 (Havre Trough and French Polynesia) were registered.
2009/11/13 The geochemical data of Coombs et al. (2006), Kimura et al. (2006), Lipman et al. (2006), Hammer et al. (2006) and Lipman & Coombs (2006) are registered. The registered data are of rocks collected in JAMSTEC Hawaiian cruises during 1998-2002. These articles were published in Journal of Volcanology and Geothermal Research Special Volume "Growth and collapse of Hawaiian volcanos (editors: Coombs M., Eakins B., Cervelli P.)" in 2006.
2009/10/15 You can search the rocks from the dive and dredge points plotted in a topographic map. Please try to search in "Quick Search by Area".
2009/10/09 The geochemical data portal "EarthChem" of Lamont Doherty Earth Observatory (USA) has started to provide access to "GANSEKI".
2009/10/09 The samples collected in NT09-11 (Okinawa Trough) were registered.
2009/10/01 The samples collected in NT09-10Leg2 (Okinawa Trough) were registered.
2009/09/14 The samples collected in YK06-12 (Mariana Trough), KR06-09 (Seamounts in North Western Pacific) and KR06-11 (Mariana Trough) were registered.
2009/08/24 The samples collected in NT09-08 (Mariana Arc) were registered.
2009/08/18 The samples collected in NT06-08 (Mariana Trough) were registered.
2009/08/10 The samples collected in YK09-06 (Izu-Ogasawara Trench and Mariana Trench) were registered.
2009/07/29 The samples collected in KR09-04 (Izu-Ogasawara Trench) were registered.
2009/07/21 The samples collected in NT09-06Leg2 (around Izu-Oshima Island) were registered.
2009/06/12 The samples collected in NT09-05Leg1 (Hoei, Kanbun and Jokyo Seamounts, Izu-Bonin Arc) were registered.
2009/04/17 The samples collected in NT09-02Leg1 (Southern Mariana Arc), KR99-12 (South Pacific Ocean Islands) and KR06-03 (Nosappu Fracture Zone) were registered.
2009/03/04 The samples collected in NT04-10 (Sumisu Caldera, Myojin Rift, Horeki Seamount), NT05-04Leg2 (Ryukyu Arc), NT05-10 (Japan Sea) and NT05-18 (Northern Mariana Arc) were registered.
2009/02/26 The opened number of rock sample metadata collected by JAMSTEC exceeded 10,000!!!
2009/02/26 The samples collected in KR03-01 (Parece Vela Basin), KR04-08 (Japan Trench Oceanward Slope and Outer-rise in NW Pacific), NT05-17 (Southern Mariana Arc) were registered.
2009/02/17 The samples collected in YK05-08Leg2 (Nankai Trough) and KR04-01 (around Hachijyojima Island and Kozushima Island, Izu-Bonin Arc) were registered.
2009/01/27 The samples collected in YK05-06 (Northwestern Pacific) were registered.
2009/01/23 The samples collected in KR02-01 (Mariana Trough), YK03-09Leg2 (Parece Vela Basin) and YK04-07 (East Pacific Rise) were registered.
2009/01/20 The samples collected in NT08-11 (Hatoma Knoll, Okinawa Trough), YK04-08Leg2 (Seamounts around French Polynesia) were registered.
2009/01/13 The samples collected in KR04-04 (back arc side of Sumisu Island), NT04-06Leg2 (Northwestern volcanic chain of Hachijojima Island) and KR04-14Leg1 (West Philippine Basin) were registered.