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Short title
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Noble gas isotopes
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Oral presentation
Date/Room/Chair
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May 24 PM1 (15:15 - 16:00)
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A04
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Hirochika Sumino
/ Hironobu Hyodo
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May 24 PM2 (16:15 - 18:00)
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A04
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Hironobu Hyodo
/ Hirochika Sumino
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Poster presentation
Date/Room
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May 24 (Core Time 18:15 - 19:30)
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Convention Hall
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Contact
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Hironobu Hyodo
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Email
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hhyodo@rins.ous.ac.jp
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Convener
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Hironobu Hyodo
/ Hirochika Sumino
/ Takahiro Tagami
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Scope
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Noble gas isotopes show unique chemical behavior by not forming compounds with other elements, and because of this they have been often used as important and distinctive geochemical and cosmochemical tracers. Since the first attempt on absolute dating was carried out using the U-He system, other dating methods involving noble gas isotopes, such as the K-Ar (Ar-Ar) system, have been developed and used as powerful tools in geochronology. Physical analysis of diffusion processes involving radiogenic noble gases in minerals has led to the concept of closure temperature, resulting in improved understanding of discordant ages between different isotope systems and their geologic interpretation. Recently developed `next generation' noble gas mass spectrometers enable isotope ratio determination at ultrahigh precision utilizing multi-collectors and high sensitivity ion source and detectors. These innovations facilitate high spatial resolution noble gas isotope measurements at the 10-microns scale in rocks and minerals. In this session, we welcome contributions from various cutting-edge analytical techniques and geoscience applications of noble gas isotopes including neutron conversion of other elements to noble gas isotopes and new insights from conventional methods.
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Notes
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| Time |
Presentation No |
Title |
Author |
Presenter |
Abstract |
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Oral Presentation May 24 PM1 (15:15-16:00) A04 to the top
|
|
15:15 - 15:30
|
SGC51-01
|
^{40}Ar/^{39}Ar age of Haedean zircon
|
HYODO, Hironobu
SATO, Keiko
KUMAGAI, Hidenori
other
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HYODO, Hironobu
|
|
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15:30 - 15:45
|
SGC51-02
|
Two regional metamorphic belts in assemblages of subduction-related orogens in Wales-England, U.K.
|
ASANUMA, Hisashi
ITAYA, Tetsumaru
FUJISAKI, Wataru
other
|
ASANUMA, Hisashi
|
|
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15:45 - 16:00
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SGC51-03
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Ar/Ar Geochronological analysis of Paka volcano, northern Kenya Rift
|
SUDO, Masafumi
STRECKER, Manfred R.
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SUDO, Masafumi
|
|
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Oral Presentation May 24 PM2 (16:15-18:00) A04 to the top
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16:15 - 16:30
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Invited
SGC51-04
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Quantifying seawater assimilation across a single MORB pillow
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BROADLEY, Michael
BURGESS, Ray
KUMAGAI, Hidenori
other
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BROADLEY, Michael
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|
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16:30 - 16:45
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SGC51-05
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Halogen analysis of mantle xenoliths by extending Ar-Ar and I-Xe dating methods
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KOBAYASHI, Masahiro
SUMINO, Hirochika
NAGAO, Keisuke
other
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KOBAYASHI, Masahiro
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16:45 - 17:00
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SGC51-06
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Across-arc variation in noble gas and halogen compositions of volcanic rocks from the Izu-Ogasawara subduction zone
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SUMINO, Hirochika
BURGESS, Ray
JEPSON, Lisa
other
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SUMINO, Hirochika
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17:00 - 17:15
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SGC51-07
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Noble gas isotopes; Solar evolution parameter
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OZIMA, Minoru
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OZIMA, Minoru
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17:15 - 17:30
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Invited
SGC51-08
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New analytical methods and a system for noble-gas measurements of extraterrestrial materials
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OKAZAKI, Ryuji
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OKAZAKI, Ryuji
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17:30 - 17:45
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SGC51-09
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Relationships between morphological features and isotopic signatures of noble gases of four Itokawa particles
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NOGUCHI, Takaaki
OKAZAKI, Ryuji
MITSUNARI, Takuya
other
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NOGUCHI, Takaaki
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17:45 - 18:00
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3-min talk in an oral session (SGC51-P01/SGC51-P02/SGC51-P03/SGC51-P04/SGC51-P05)
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| Presentation No |
Title |
Author |
Presenter |
Abstract |
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Poster Presentation May 24 Core Time (18:15-19:30) Convention Hall to the top
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Invited
SGC51-P01
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Present status for in-situ noble gas analysis by Sputtered Neutral Mass Spectrometry with tunneling ionization
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BAJO, Ken-ichi
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BAJO, Ken-ichi
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|
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SGC51-P02
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New preparation apparatus for noble gas isotope analyses to measure submarine hydrothermal fluids and renewed GVI-5400
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SATO, Keiko
KUMAGAI, Hidenori
IWATA, Naoyoshi
other
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SATO, Keiko
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SGC51-P03
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High sensitive noble gas mass spectrometer equipped with a Giese-type ion source
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SUMINO, Hirochika
NAGAO, Keisuke
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SUMINO, Hirochika
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SGC51-P04
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Ar-Ar dating by fluid inclusions in hydrothermal quartz, compared with its field and microscopic observations
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SAITO, Takuya
QIU, Huaning
SHIBUYA, Takazo
other
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SAITO, Takuya
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SGC51-P05
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Possibility of K-Ar age mapping on the moon using cosmogenic ^{39}Ar
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TAKESHIMA, Yuko
HYODO, Hironobu
ITAYA, Tetsumaru
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HYODO, Hironobu
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