2021年度 後期セミナー

10/14 Akira ISHIKAWA (Ishikawa-lab) TBA
10/21 Tetsuya YOKOYAMA Determination of elemental abundances in meteorites with ICP-QMS
10/28 Makiko K. HABA Cosmogenic noble gas nuclides in meteoritic zircons
11/4 Yuki MASUDA Nucleosynthetic titanium isotope anomalies in fine-grained CAIs from Allende
11/18 Takahiro OZAWA (Ishikawa lab) Hydrogen isotope of the mantle source in Pitcairn Island
11/25 Ryo FUJITA (Ishikawa-lab) Noble gas systematics of peridotite xenoliths from Hawaiian Islands
12/2 Tatsuya TAMURA Molybdenum isotopic composition in volcanic rocks from the Izu-Islands
12/9 Shun NAKANO (Ishikawa-lab) Improvement of Carius Tube digestion for analyses of HSEs and other siderophile elements of terrestrial rocks and chondrites
12/16 Koharu FUJIMURA ⅡE鉄隕石を用いた消滅核種Nb92の初期太陽系における不均一性の評価に向けて
12/16 Yuki YODA ICP-MSによるコンドライト隕石の多元素同時分析
12/23 Koki SUMIYA イオン交換法によるCrの抽出技術の改良について
1/5 Yuka NIWA (Ishikawa-lab) プチスポット火山産マントルゼノリスから推定する海洋リソスフェアの温度構造
1/5 Yuta IHARA (Ishikawa-lab) ゴルゴナ島の苦鉄質超苦鉄質岩の主要元素、Os同位体比とOs濃度の分析によるマグマ源の推定
1/20 Takumi SATO (Ishikawa Lab) 全岩組成のバリエーションからアプローチする蛇紋岩化作用・風化プロセスの理解
1/20 Yusuke OHKUMA Development of alkali fusion digenstion for low-blank Cr isotope analysis of chondrites
1/28 Keiji NISHIKAWA Chromium isotope anomaly in Martian meteorite
2/24 Ikshu GAUTAM Separating trace and major elements of precious Ryugu samples: 5-stage multielement separation procedure

2021年度 前期セミナー

date name subject
4/19 Tetsuya YOKOYAMA Development of precise Cr isotope analysis with TIMS for the initial analysis of asteroid samples returned by the Hayabusa2 mission
4/28 Makiko K. HABA The initial 92Nb abundance of the Solar System and applications of 92Nb?92Zr dating to meteorites
5/12 Yusuke OHKUMA Cr isotope analysis for chondrites
5/19 Tatsuya TAMURA Analysis of Molybdenum isotope ratios in Izu arc basalts (Izu-Oshima,Niijima) by TIMS
5/26 Takahiro OZAWA (Ishikawa lab) Hydrogen isotope of the mantle source in Pitcairn Island
5/31 Takumi SATO (Ishikawa Lab) Characterizations of mineralogy and infrared spectra of serpentinized samples in Oman ophiolite along with redox gradients in subsurface: Toward identification of redox gradients in Martian subsurface
6/7 Keiji NISHIKAWA Martian meteorite nucleosynthetic isotope anomaly
6/14 Yuki MASUDA Element imaging of fine-grained inclusions in Allende meteorite using Laser Ablation ICP-MS
6/21 Ikshu GAUTAM Mo isotopic investigation of the mafic rocks of Acasta Complex: our efforts so far
6/28 Koki SUMIYA Paper reading: The Yamato-type(CY) carbonaceous chondrite group: Analogues for the surface of asteroid Ryugu? King et al. (2019)
6/28 Koharu FUJIMURA Paper reading: Age and origin of IIE iron meteorites inferred from Hf-W chronology. Kruijer and Kleine (2019)
7/5 Yuki YODA Paper reading: The chemical composition of carbonaceous chondrites: Implications for volatile element depletion, complementarity and alteration? Braukmueller et al. (2018)
7/5 Yuka NIWA (Ishikawa-lab) Dating of mantle peridotite using Re-Os systematics
7/12 Yuta IHARA (Ishikawa-lab) TBA
7/12 Shun NAKANO (Ishikawa-lab) Highly siderophile elements behavior in the Paleoarchean Camel Creek komatiites from East Pilbara Terrane, Western Australia
7/19 Ryo FUJITA (Ishikawa-lab) Noble gas isotopes of peridotite xenoliths from Hawaiian Islands