@article{CTT100832573, author = {Saya Kagami and Makiko Haba and Tetsuya Yokoyama and Tomohiro Usui and Richard C. Greenwood}, title = {Geochemistry and Sm‐Nd chronology of a Stannern‐group eucrite, Northwest Africa 7188}, journal = {Meteoritics & Planetary Science}, year = 2019, } @article{CTT100832547, author = {Ryota Fukai and Tetsuya Yokoyama}, title = {Assessment of the secondary instrumental fractionation in TIMS: Implication for high-precision Nd isotope analysis of geological samples}, journal = {GEOCHEMICAL JOURNAL}, year = 2019, } @article{CTT100832544, author = {Tetsuya Yokoyama and Yuichiro Nagai and Ryota Fukai and TAKAFUMI HIRATA}, title = {Origin and Evolution of Distinct Molybdenum Isotopic Variabilities within Carbonaceous and Noncarbonaceous Reservoirs}, journal = {The Astrophysical Journal}, year = 2019, } @article{CTT100832545, author = {Ryota Fukai and Tetsuya Yokoyama}, title = {Nucleosynthetic Sr–Nd Isotope Correlations in Chondrites: Evidence for Nebular Thermal Processing and Dust Transportation in the Early Solar System}, journal = {The Astrophysical Journal}, year = 2019, } @article{CTT100795853, author = {Nao Nakanishi and Tetsuya Yokoyama and Akira Ishikawa}, title = {Refinement of the micro-distillation technique for isotopic analysis of geological samples with pg-level osmium contents}, journal = {Geostandards and Geoanalytical Research}, year = 2019, } @article{CTT100789928, author = {Satoki Okabayashi and Tetsuya Yokoyama and Nao Nakanishi and Hikaru Iwamori}, title = {Fractionation of highly siderophile elements in metal grains from unequilibrated ordinary chondrites: Implications for the origin of chondritic metals}, journal = {Geochimica Et Cosmochimica Acta}, year = 2019, } @inproceedings{CTT100800180, author = {六鹿 悠 and Akira Ishikawa and Tetsuya Yokoyama}, title = {Evaluation of digestion methods for Molybdenum concentration analysis for geological materials}, booktitle = {}, year = 2019, }