Abstracts of Annual Meeting of the Geochemical Society of Japan

Abstracts of Annual Meeting of the Geochemical Society of Japan

Search

Search
Browse

All issues

55th Annual Meeting of the Geochemical Society of Japan

Displaying 401-421 of 421 articles from this issue

Download citation

Show all abstracts

|<
<
3
4
5
6
7
8
9
>
>|

Seasonal variation of nitrogen isotopes in coral skeletons:New proxy for nutrients activity of surface oceans in low latitude

Atsuko Yamazaki, Tsuyoshi Watanabe, Tatsunori Kawashima, Nanako Ogawa, ...

Session ID: 3F05 11-05
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.406.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (35K)
Coral Sr/Ca and Mg/Ca records in Con Dao Island off the Mekong Delta: Assessment of their potential for monitoring ENSO and East Asian monsoon

Takehiro Mitsuguchi, Phong Dang, Hiroyuki Kitagawa, Tetsuo Uchida, Yas ...

Session ID: 3F06 11-06
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.407.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

A modern coral with annual bands of AD 1948-1999 collected from Con Dao Island, about 90 km off the Mekong Delta coast, was analyzed for Sr/Ca and Mg/Ca ratios at a near-monthly resolution. The Sr/Ca ratio shows a clear annual cyclicity and is generally modulated by sea-surface temperature (SST), while the Mg/Ca ratio exhibits an indistinct annual cyclicity and is greatly influenced by some factor other than SST. Comparison of the Sr/Ca data with in-situ SST data (since 1980) shows good correspondence in the cool/dry season from December to April but an occasional remarkable discrepancy in the warm/wet season from May to November. The discrepancy may be related to the discharge from the Mekong River. The annual-minimum SSTs derived from the Sr/Ca data show a clear quasi-biennial oscillation with a marked tendency to be warmer (cooler) in El Nino (La Nina) phases. This tendency is consistent with the connection between the El Nino-Southern Oscillation and the East Asian winter monsoon: the winter monsoon is weakened (strengthened) in El Nino (La Nina) phases.

View full abstract

Download PDF (90K)
Development of non-destructive and expeditious analysis of coral skeleton for reconstructing paleo-environment ; Coral skeletal growth from digitized images of X-radiographs and chemical compositional variants from Non-Destructive X-Ray Fluorescence

KOHKI SOWA, TSUYOSHI WATANABE, TATSUHIKO SAKAMOTO, KOHICHI IJIMA, MASA ...

Session ID: 3F07 11-07
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.408.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (77K)
[title in Japanese]

Mai Tomita, Kousuke Kurisaki, Masayuki Fujikawa, Yoshika Tennichi, Kaz ...

Session ID: 3F08 11-08
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.409.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (123K)
Fluctuations in tree ring cellulose d18O during the Little Ice Age correlated with solar activities.

Yasuhiko Yamaguchi T., Yusuke Yokoyama, Hiroko Miyahara, Takeshi Nakat ...

Session ID: 3F09 11-09
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.410.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (90K)
Potential of paleoenvironmental reconstruction by using variation of miner elements in skeleton of sclerosponge.

Kazuto Ohmori, tsuyoshi Watanabe, Kotarou Shirai

Session ID: 3F10 11-10
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.411.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (88K)

Centennial-scale variability of fossil scale abundance of Japanese anchovy and sardine and their past feeding grounds

Michinobu Kuwae, Hidetaka Takeoka, Takashige Sugimoto

Session ID: 3F11 11-11
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.412.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (65K)
Reconstruction of TEX86 paleotemperatures reconstruction in the Beppu Bay over the last 1500 years.

norio ichikawa, masanobu yamamoto, tatsufumi okino, mishinobu kuwae, t ...

Session ID: 3F12 11-12
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.413.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (117K)
Holocene temperature change in the northern East China Sea

Takahiro Nakanishi, Masanobu Yamamoto, Tatsufumi Okino, Tomohisa Irino ...

Session ID: 3F13 11-13
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.414.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (91K)
Vertical profile of d13C of Fallahogy peat core, Northen Ireland.

Seigo Ooki, Tasuku Akagi, Fumio Kitajima, Hiroshi Naraoka, Shinichi Ku ...

Session ID: 3F15 11-15
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.415.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (203K)
[title in Japanese]

Yusuke Okazaki, [in Japanese], [in Japanese], [in Japanese], [in Japan ...

Session ID: 3F16 11-16
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.416.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (131K)
Reconstruction of seasonal sea surface temperature variability in the Japan Sea during the Last Glacial Maximum based on oxygen isotope composition of bivalve

Keigo Tada, Tomohisa Irino, Akihisa Kitamura, Ken Ikehara

Session ID: 3F17 11-17
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.417.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (86K)
Reconstruction of paleohydrology in Japan Sea based on isotopic records in a sediment core recovered from off Akita

Hisami Suga, Yusuke Yokoyama, Nanako Ogawa, Hiroshi Kitazato, Naohiko ...

Session ID: 3F18 11-18
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.418.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (82K)
Construction of an alkaline tephrostratigraphical framework of the late Quaternary by INAA-scanning of sediment cores in the Japan Sea

Chungwan Lim, ken Ikehara, Kazuhiro Toyoda

Session ID: 3F19 11-19
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.419.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (127K)
Late Pleistocene changes in terrestrial organic matter input to the Mendeleev Ridge, western Arctic Ocean

Masanobu Yamamoto, Leonid Polyak

Session ID: 3F20 11-20
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.420.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (72K)
[title in Japanese]

Hirotaka Sai, Masanobu Yamamoto, Chen Min-Te

Session ID: 3F21 11-21
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.421.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (68K)
Water soluble aerosols during glacial and interglacial climate reconstructed from bipolar ice cores

Toshimitsu Sakurai, Hiroshi Ohno, Yoshinori Iizuka, Shinichirou Horika ...

Session ID: 3F22 11-22
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.422.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (89K)
[title in Japanese]

Hisanori Gotoh, Yoshihiro Asahara, Koshi Yamamoto

Session ID: 3F23 11-23
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.423.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (24K)
Pliocene El Nino;Coral high-resolution evidence of atmosphere and ocean variabilities in the tropical Pacific

Tsuyoshi Watanabe, Atsushi Suzuki, Tatsunori Kawashima, Shoshiro Minob ...

Session ID: 3F24 11-24
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.424.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

We show two 35 years oxygen isotope records from fossil PWP corals (3.5-3.8Ma) with monthly resolution in order to decipher the seasonal to interannual characteristics of Pliocene ENSO. Several significant attenuations of seasonal amplitude were found in 18O/16O ratios of both two PWP coral records, which were also detected in the modern corals during El Nino events. Power spectrum density of normalized PWP coral records suggests that the characteristic of Pliocene ENSO was similar with that of recent. Our results contrast with the arguments that the past and future warm conditions in background climate system will lead the permanent El Nino state.

View full abstract

Download PDF (149K)
Reconstruction of atmospheric CO2 concentrations based on alkenone over the past 10 Myrs

Osamu Seki, Schmidt Daniela, Kimitaka Kawamura, Richard Pancost

Session ID: 3F25 11-25
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.425.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (108K)
d18O and d13C of tree-ring cellulose in fossil wood from Late Miocene (11-10Ma)

Takeshi Nakatsuka, Keiko Ohnishi, Ken Sawada, Hideto Nakamura, Minoru ...

Session ID: 3F26 11-26
Published: 2008
Released on J-STAGE: September 06, 2008

DOIhttps://doi.org/10.14862/geochemproc.55.0.426.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (138K)

|<
<
3
4
5
6
7
8
9
>
>|

Top