Search Results - "Yoshimura, Toshihiro"

143–million-year seawater osmium isotopic record: Trends, rhythms, and dynamics of volcanism and tectonics.

Authors: Matsumoto, Hironao Watanabe, Yasuto Coccioni, Rodolfo et al.

Source: Science. 1/22/2026, Vol. 391 Issue 6783, p389-393. 5p.

Subjects: Osmium isotopes, Volcanism, Paleoclimatology, Cretaceous Period, Igneous provinces, Structural geology, Erosion, Seawater

Geographic Terms: Gondwana (India)

Stable Isotope Systematics of Mg, Sr, and Li in Hydrothermal Fluids and Hypersaline Lake Brines in the East African Continental Rift (Djibouti).

Authors: Yoshimura, Toshihiro Araoka, Daisuke Yamanaka, Toshiro et al.

Source: Geofluids. 9/9/2025, Vol. 2025, p1-16. 16p.

Chamber‐by‐Chamber Measurements of Planktonic Foraminiferal Mg, Sr, and Na to Ca Ratios With Femtosecond LA‐ICP‐MS.

Authors: Yoshimura, Toshihiro Chang, Qing Ohkouchi, Naohiko et al.

Source: Rapid Communications in Mass Spectrometry: RCM. 4/15/2026, Vol. 40 Issue 7, p1-18. 18p.

Silicate and Carbonate Weathering Perturbation at the Eocene‐Oligocene Transition Recorded by Mg Isotopes.

Authors: Sproson, Adam D. Yoshimura, Toshihiro Wakaki, Shigeyuki et al.

Source: Geochemistry, Geophysics, Geosystems: G3. Feb2026, Vol. 27 Issue 2, p1-21. 21p.

Carbonate Associated Sulfate Extraction Method Using Weakly Acidic Cation Exchange Resins.

Authors: Kochi, Takeru Yoshimura, Toshihiro Ogawa, Nanako O. et al.

Source: Geostandards & Geoanalytical Research. Mar2024, Vol. 48 Issue 1, p77-89. 13p.

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Micro-X-ray fluorescence-based comparison of skeletal structure and P, Mg, Sr, O and Fe in a fossil of the cold-water coral Desmophyllum sp., NW Pacific.

Authors: Yoshimura, Toshihiro Suzuki, Atsushi Tamenori, Yusuke et al.

Source: Geo-Marine Letters. Feb2014, Vol. 34 Issue 1, p1-9. 9p.

Magnesium K-edge XANES spectroscopy of geological standards.

Authors: Yoshimura, Toshihiro Tamenori, Yusuke Iwasaki, Nozomu et al.

Source: Journal of Synchrotron Radiation. Sep2013, Vol. 20 Issue 5, p734-740. 7p.

Mg isotope fractionation in biogenic carbonates of deep-sea coral, benthic foraminifera, and hermatypic coral.

Authors: Yoshimura, Toshihiro Tanimizu, Masaharu Inoue, Mayuri et al.

Source: Analytical & Bioanalytical Chemistry. Jan2012, Vol. 401 Issue 9, p2755-2769. 15p.

Sulfur speciation in growth layers of shell cross section of the long-lived bivalve Margaritifera laevis using synchrotron spectromicroscopy analysis.

Authors: Tamenori, Yusuke Yoshimura, Toshihiro

Source: Geochimica et Cosmochimica Acta. Sep2018, Vol. 237, p357-369. 13p.

Subjects: Sulfur spectra, Chemical speciation, Synchrotrons, Trace elements, Cross-sectional method

Magnesium Isotopic Composition of Tests of Large Benthic Foraminifers: Implications for Biomineralization.

Authors: Maeda, Ayumi Yoshimura, Toshihiro Araoka, Daisuke et al.

Source: Geochemistry, Geophysics, Geosystems: G3. Aug2019, Vol. 20 Issue 8, p4046-4058. 13p.

Tubo-ovarian abscess occurring 16 years after supracervical hysterectomy.

Authors: Tohya, Toshimitsu Yoshimura, Toshihiro Onoda, Chikashi

Source: Infectious Diseases in Obstetrics & Gynecology. 2003, Vol. 11 Issue 3, p167-169. 3p.

Zinc isotope fractionation during the sorption of Zn to minerals and organic matter in sediment cores affected by anthropogenic pollution.

Authors: Nitzsche, Kai Nils Yoshimura, Toshihiro Ishikawa, Naoto F. et al.

Source: Applied Geochemistry. Aug2024, Vol. 169, pN.PAG-N.PAG. 1p.

Subjects: Isotopic fractionation, Contaminated sediments, Calcite, Organic compounds, Sorption, Zinc, Marine sediment pollution

Lithium, magnesium and sulfur purification from seawater using an ion chromatograph with a fraction collector system for stable isotope measurements.

Authors: Yoshimura, Toshihiro Araoka, Daisuke Tamenori, Yusuke et al.

Source: Journal of Chromatography A. Jan2018, Vol. 1531, p157-162. 6p.

Subjects: Water purification, Lithium isotopes, Magnesium isotopes, Ion exchange chromatography, Fraction collectors (Chromatography), Stable isotopes

Altervalent substitution of sodium for calcium in biogenic calcite and aragonite.

Authors: Yoshimura, Toshihiro Tamenori, Yusuke Suzuki, Atsushi et al.

Source: Geochimica et Cosmochimica Acta. Apr2017, Vol. 202, p21-38. 18p.

Subjects: Calcite, Aragonite, X-ray spectroscopy, Synchrotrons, Corals

Mg coordination in biogenic carbonates constrained by theoretical and experimental XANES.

Authors: Yoshimura, Toshihiro Tamenori, Yusuke Takahashi, Osamu et al.

Source: Earth & Planetary Science Letters. Jul2015, Vol. 421, p68-74. 7p.

Subjects: Magnesium, Calcium carbonate, X-ray absorption near edge structure, Coordinate covalent bond, Mineralogy, Foraminifera, Crystal lattices

Control of Sequential MTO Reactions through an MFI-Type Zeolite Membrane Contactor.

Authors: Tanizume, Shusei Yoshimura, Toshihiro Ishii, Katsunori et al.

Source: Membranes. Feb2020, Vol. 10 Issue 2, p26. 1p.

A novel procedure for the assessment of the antioxidant capacity of food components.

Authors: Yoshimura, Toshihiro Harashima, Mai Kurogi, Katsuhisa et al.

Source: Analytical Biochemistry. Aug2016, Vol. 507, p7-12. 6p.