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Details for: Tetsuya Yokoyama


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Note: abstracts are only listed if one of the following email addresses was provided when the abstract was submitted: tetsuya.yoko@eps.sci.titech.ac.jp. Otherwise, try an advanced search.

(2025) Elemental Abundance Variations in Ryugu Grains from Touchdown 1
López García K, Yokoyama T, Gautam I, Haba MK, Nakanishi N, Iizuka T & Fukai R
(2025) Fe, Mg and Si Isotope Compositions of Ryugu Particles
Bizzarro M, Schiller M & Yokoyama T
(2025) Highly Siderophile Element and Re-Os Isotope Constraints for the Origin of Ultra-Refractory Peridotites in the Kamuikotan Belt, Hokkaido, Japan
Mori H, Ishikawa A, Yokoyama T, Kogiso T & Akizawa N
(2025) Ryugu, Bennu, and CI Chondrites: Do They Serve as Reference Materials for the Solar System Composition?
Yokoyama T, Dauphas N, Fukai R, Usui T, Tachibana S, Schönbächler M, Busemann H, Abe M & Yada T
(2024) Chromium and Titanium Isotopic Anomalies in Al-Rich Chondrules from CV Chondrites
Shiraishi Y, Masuda Y, Yokoyama T & Iizuka T
(2024) Small-Scale Ti Isotopic Heterogeneity in Ryugu Samples Influenced by Parent-Body Aqueous Alteration
Yokoyama T, López García K, Gautam I, Iizuka T, Haba MK, Nakanishi N & Fukai R
(2023) Barium Isotopic Composition of Ryugu Samples by the Hayabusa2 Mission
Hidaka H, Yoneda S, Gautam I & Yokoyama T
(2023) Highly Siderophile Element Geochemistry of Phanerozoic Komatiites and Related Mafic-Ultramafic Rocks in Gorgona Island, Columbia
Yuta I, Ishikawa A, Yokoyama T & Shimizu K
(2023) Highly Siderophile Elements and Os Isotope Compositions of Ryugu Samples
Ishikawa A, Yokoyama T, Nakanishi N & Walker RJ
(2023) New Consortium Study to Determine the Solar System Composition Using Ryugu Samples
Yokoyama T, Dauphas N, Fukai R, Usui T, Tachibana S, Schönbächler M, Busemann H, Abe M & Yada T
(2023) Nucleosynthetic Isotopic Anomalies of Ti and Cr in Fine-Grained CAIs from the Allende Meteorite
Masuda Y, Yokoyama T, Iizuka T & Hibiya Y
(2023) The Thermal and Chemical Litho-Stratigraphy beneath the Hawaiian Islands
Fujita R, Ishikawa A, Yokoyama T & Garcia MO
(2023) Zinc, Copper and Calcium Isotopic Composition of Ryugu’s Samples
Moynier F, Paquet M, Dai W, Yokoyama T, Hu Y & Yurimoto H
(2023) Zirconium Isotope Composition of Samples Returned from the Asteroid Ryugu
Fehr MA, Schönbächler M & Yokoyama T
(2022) 5-Stage Multielement Separation Procedure: A Unique and Essential Tool for the Multi-Isotopic Analyses of Precious (< 30 mg) Meteorites and Asteroidal Materials
Gautam I, Yokoyama T, Ohkuma Y, Iizuka T, Horan MF & Carlson RW
(2022) Cr and Ti Isotope Systematics of Ryugu Samples
Yokoyama T, Iizuka T, Gautam I, Hibiya Y, Haba MK, Masuda Y, Fukai R & Yurimoto H
(2022) Distribution of Rare-Earth Elements in Fine-Grained Calcium and Aluminum-Rich Inclusions from Allende Meteorite
Masuda Y, Niki S, Hirata T & Yokoyama T
(2022) Pb Isotopic Compositions of Ryugu Samples and Carbonaceous Chondrites
Haba MK, Yokoyama T, Masuda Y, Gautam I, Fukai R & Yurimoto H
(2022) Simple and Accurate Determination of Chalcophile and Highly Siderophile Elements in Carbonaceous Chondrites Using Triple Quadrupole ICP-MS
Ishikawa A, Nakano S, Fujita R & Yokoyama T
(2022) The Isotopic Variations in Bulk-Scale Carbonaceous Chondrites and the Possible Targets in the Next Sample Return Mission
Fukai R, Yokoyama T, Arakawa S, Homma K, Okuzumi S & Shimaki Y
(2021) Development of Multi-Isotopic Analyses of Asteroid Samples Returned by the Hayabusa2 Mission
Yokoyama T, Gautam I, Ohkuma Y, Iizuka T, Horan MF & Carlson RW
(2021) Highly Siderophile Element Mobility during Serpentinization of Mantle Wedge Peridotite
Ishikawa A, Nakamura N & Yokoyama T
(2021) Highly Siderophile Elements Behavior in the Paleoarchean Camel Creek Komatiites from East Pilbara Terrane, Western Australia
Nakano S, Ishikawa A, Ueno Y & Yokoyama T
(2020) Ancient Origin of Hawaiian Xenoliths: Fragments of Mantle Plume?
Fujita R, Ishikawa A, Yokoyama T & Garcia M
(2020) Development of Laser Ablation with Filter (LAF) Sampling Method for Micro-Scale Isotopic Analysis of Geologic Materials
Masuda Y, Yokoyama T, Okabayashi S & Ishikawa A
(2020) Lead Isotope Analysis for Picogram Size Samples by TE-Ds-Tims Using Amplifier Equipped with 1013 Ohm Resistor
Fukami Y, Tobita M, Yokoyama T & Suzuki K
(2020) No Impact Signatures in Earth’s Oldest Rocks from Acasta Gneiss Complex, Canada
Ishikawa A, Koshida K, Suzuki K, Yokoyama T & Komiya T
(2020) Origin and Evolution of Distinct Isotopic Variabilities for Sr, Mo, and Nd within CC and NC Reservoirs
Yokoyama T, Fukai R, Nagai Y & Hirata T
(2019) Chemically Defining the Building Blocks of the Earth
Yoshizaki T, Ash R, Yokoyama T, Lipella M & McDonough W
(2019) Nucleosynthetic Sr and Nd Isotopic Anomalies of Bulk Differentiated Meteorites
Fukai R, Sugimoto K & Yokoyama T
(2025) Highly Siderophile Element and Re-Os Isotope Constraints for the Origin of Ultra-Refractory Peridotites in the Kamuikotan Belt, Hokkaido, Japan
Mori H, Ishikawa A, Yokoyama T, Kogiso T & Akizawa N
(2025) Elemental Abundance Variations in Ryugu Grains from Touchdown 1
López García K, Yokoyama T, Gautam I, Haba MK, Nakanishi N, Iizuka T & Fukai R
(2025) Ryugu, Bennu, and CI Chondrites: Do They Serve as Reference Materials for the Solar System Composition?
Yokoyama T, Dauphas N, Fukai R, Usui T, Tachibana S, Schönbächler M, Busemann H, Abe M & Yada T
(2025) Fe, Mg and Si Isotope Compositions of Ryugu Particles
Bizzarro M, Schiller M & Yokoyama T
(2024) Chromium and Titanium Isotopic Anomalies in Al-Rich Chondrules from CV Chondrites
Shiraishi Y, Masuda Y, Yokoyama T & Iizuka T
(2024) Small-Scale Ti Isotopic Heterogeneity in Ryugu Samples Influenced by Parent-Body Aqueous Alteration
Yokoyama T, López García K, Gautam I, Iizuka T, Haba MK, Nakanishi N & Fukai R
(2023) The Thermal and Chemical Litho-Stratigraphy beneath the Hawaiian Islands
Fujita R, Ishikawa A, Yokoyama T & Garcia MO
(2023) Highly Siderophile Element Geochemistry of Phanerozoic Komatiites and Related Mafic-Ultramafic Rocks in Gorgona Island, Columbia
Yuta I, Ishikawa A, Yokoyama T & Shimizu K
(2023) Highly Siderophile Elements and Os Isotope Compositions of Ryugu Samples
Ishikawa A, Yokoyama T, Nakanishi N & Walker RJ
(2023) Zirconium Isotope Composition of Samples Returned from the Asteroid Ryugu
Fehr MA, Schönbächler M & Yokoyama T
(2023) Barium Isotopic Composition of Ryugu Samples by the Hayabusa2 Mission
Hidaka H, Yoneda S, Gautam I & Yokoyama T
(2023) New Consortium Study to Determine the Solar System Composition Using Ryugu Samples
Yokoyama T, Dauphas N, Fukai R, Usui T, Tachibana S, Schönbächler M, Busemann H, Abe M & Yada T
(2023) Zinc, Copper and Calcium Isotopic Composition of Ryugu’s Samples
Moynier F, Paquet M, Dai W, Yokoyama T, Hu Y & Yurimoto H
(2023) Nucleosynthetic Isotopic Anomalies of Ti and Cr in Fine-Grained CAIs from the Allende Meteorite
Masuda Y, Yokoyama T, Iizuka T & Hibiya Y
(2022) Distribution of Rare-Earth Elements in Fine-Grained Calcium and Aluminum-Rich Inclusions from Allende Meteorite
Masuda Y, Niki S, Hirata T & Yokoyama T
(2022) Pb Isotopic Compositions of Ryugu Samples and Carbonaceous Chondrites
Haba MK, Yokoyama T, Masuda Y, Gautam I, Fukai R & Yurimoto H
(2022) Simple and Accurate Determination of Chalcophile and Highly Siderophile Elements in Carbonaceous Chondrites Using Triple Quadrupole ICP-MS
Ishikawa A, Nakano S, Fujita R & Yokoyama T
(2022) 5-Stage Multielement Separation Procedure: A Unique and Essential Tool for the Multi-Isotopic Analyses of Precious (< 30 mg) Meteorites and Asteroidal Materials
Gautam I, Yokoyama T, Ohkuma Y, Iizuka T, Horan MF & Carlson RW
(2022) Cr and Ti Isotope Systematics of Ryugu Samples
Yokoyama T, Iizuka T, Gautam I, Hibiya Y, Haba MK, Masuda Y, Fukai R & Yurimoto H
(2022) The Isotopic Variations in Bulk-Scale Carbonaceous Chondrites and the Possible Targets in the Next Sample Return Mission
Fukai R, Yokoyama T, Arakawa S, Homma K, Okuzumi S & Shimaki Y
(2021) Highly Siderophile Element Mobility during Serpentinization of Mantle Wedge Peridotite
Ishikawa A, Nakamura N & Yokoyama T
(2021) Highly Siderophile Elements Behavior in the Paleoarchean Camel Creek Komatiites from East Pilbara Terrane, Western Australia
Nakano S, Ishikawa A, Ueno Y & Yokoyama T
(2021) Development of Multi-Isotopic Analyses of Asteroid Samples Returned by the Hayabusa2 Mission
Yokoyama T, Gautam I, Ohkuma Y, Iizuka T, Horan MF & Carlson RW
(2020) No Impact Signatures in Earth’s Oldest Rocks from Acasta Gneiss Complex, Canada
Ishikawa A, Koshida K, Suzuki K, Yokoyama T & Komiya T
(2020) Ancient Origin of Hawaiian Xenoliths: Fragments of Mantle Plume?
Fujita R, Ishikawa A, Yokoyama T & Garcia M
(2020) Development of Laser Ablation with Filter (LAF) Sampling Method for Micro-Scale Isotopic Analysis of Geologic Materials
Masuda Y, Yokoyama T, Okabayashi S & Ishikawa A
(2020) Origin and Evolution of Distinct Isotopic Variabilities for Sr, Mo, and Nd within CC and NC Reservoirs
Yokoyama T, Fukai R, Nagai Y & Hirata T
(2020) Lead Isotope Analysis for Picogram Size Samples by TE-Ds-Tims Using Amplifier Equipped with 1013 Ohm Resistor
Fukami Y, Tobita M, Yokoyama T & Suzuki K
(2019) Nucleosynthetic Sr and Nd Isotopic Anomalies of Bulk Differentiated Meteorites
Fukai R, Sugimoto K & Yokoyama T
(2019) Chemically Defining the Building Blocks of the Earth
Yoshizaki T, Ash R, Yokoyama T, Lipella M & McDonough W

Session convener

Goldschmidt2016 - Session 02b: Galactic Chemical Evolution and Isotope Anomalies in the Early Solar System
Goldschmidt2015 - Session 24d: Isotopic Heterogeneity in the Early Solar System
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