2015 前期セミナー

date name subject
April 16 Tetsuya YOKOYAMA Stellar Nucleosynthesis of Trans-iron Elements
April 23 Ryota MORIWAKI Lead isotopic systematics of olivine-phyric shergottite Tissint: Implication for the geochemical evolution of shegottite source mantle
April 30 Hisashi ASANUMA Twice regional metamorphic events recorded in Pacific-type orogen in Wales-England
May 7 Tomohiro USUI In situ carbon and oxygen isotope analyses of Noachian Carbonates
May 14 Wataru OKUI Sr isotope evidence for the origin of carbonaceous chondrules
May 21 Kunihiro MYOJO Nucleosynthetic Strontium isotope variability in Allende CAIs
June 4 Nao NAKANISHI Determination of osmium isotope compositions in metal phases from CB chondrites using micro sampling techniques
June 11 Yuichiro NAGAI Molybdenum Isotopic Analysis with Negative Thermal Ionization Mass Spectrometry: Effects on Oxygen Isotopic Composition
June 18 Asobo N. E. ASAAH Discovery of a HIMU Signature in Lavas from Mt. Oku: Implications for Plume - Lithosphere Interaction in the Continental Sector of the Cameroon Volcanic Line
June 25 Ryota FUKAI Variability of Nd isotope compositions in terrestrial standards
July 2 Saya KAGAMI Highly precise and accurate Sm-Nd chronology of a basaltic eucrite, NWA 7188
July 16 Minato TOBITA Development of Precise Pb Isotope Analysis Using Double-Spike Technique by TIMS
July 23 Wataru FUJISAKI Osmium isotope composition in the deep pelagic Panthalassa ocean during the Toarcian Oceanic Anoxic Event: Relationships between Karoo-Ferrar volcanism and climatic-biologic changes
July 28 Masaki NAKAHARA Er and Yb isotope fractionation in planetary materials By E. Albalat, P. Telouk and F. Albarede (2012)
July 28 Masashi SHIDARE Proterozoic Ocean Chemistry and Evolution: A Bioinorganic Bridge? By A. D. Anbar and A. H. Knoll (2002)
July 28 Satoshi KUDOU Nucleocosmochronology By B. S. Meyer and J. W. Truran (2000)

2015 後期セミナー

date name subject
October 8th Tetsuya YOKOYAMA Determination of 22 trace elements in rock samples by ICP-QMS with isotope dilution-internal standardization using 113In-203Tl double spike
October 15th Wataru OKUI Sr isotope evidence for the origin of the chondrules in CV chondrite
October 22nd Kunihiro MYOJO Nucleosynthetic strontium isotope variability in Allende CAIs
October 29th Yuichiro NAGAI Highly precise Mo isotopic analysis in non-carbonaceous chondrites
November 5th Satoki OKABAYASHI Evaluation of analytical performance of ultra-violet fs-LA-ICP-MS
November 12nd Tomohiro USUI Coordinated in situ analyses of H-C-O isotopes of Noachian carbonates: progress report-2
November 19th Asobo N. E. ASAAH Geochemistry and petrology of dolerite from Nyos volcano, Cameroon line, West Africa
November 26th Wataru FUJISAKI Osmium isotope composition in the central Panthalassa during the Toarcian Oceanic Anoxic Event: Relationships between Karoo-Ferrar volcanism and climatic-biologic changes
November 26th Ryota MORIWAKI Geochemical variability of the martian meteorite: Inplications for the geochemical evolution of the martian interior
December 3rd Ryota FUKAI High precision Nd and Sm isotopic analysis of bulk chondrites with complete sample digestion
December 17th Saya KAGAMI Geochemical study of basaltic eucrites with the 147Sm-143Nd and 146Sm-142Nd systematics
January 7th Satoshi KUDOU Development of extremely small amount of 238U analysis by total evaporation method for dating presolar grains
January 7th Masaki NAKAHARA Development of Yb isotope analysis for the study of nucleosynthetic isotope anomalies in meteorites
January 14th Masashi SHIDARE X-ray absorption near edge structure (XANES) analyses for speciation of sulfur in Martian meteorite
January 14th Minato TOBITA Uranium-lead isotopic systematics of martian meteorite Zagami
January 21st Hisashi ASANUMA LA-ICP-MS U-Pb dating of zircons from North Pole Adamellite in the eastern Pilbara Craton
January 21st Nao NAKANISHI Determination of osmium isotope compositions in metal phases from CB chondrites using micro sampling techniques