All abstracts by Akizumi Ishida in conference series: Goldschmidt

(2023) Origin of B- and P-Rich Thermal Waters in Northeastern Japan: Modern Analogue of Nucleotide-Forming Environments on the Early Earth
Kakegawa T, Christensen S, Ishida A, Araoka D & Shinjo R

(2023) Microbial Nitrogen Cycle Recorded in the 3.2 Ga Banded Iron Formation of the Fig Tree Group, Barberton, S. Africa
Saito H, Ishida A, Hashizume K & Kakegawa T

(2022) A New Approach for Detecting Trace Elements in Microfossils: Implications for the Paleoproterozoic Biosphere
Ishida A, Sasaki K, Kakegawa T, Takahata N & Sano Y

(2021) Unique Occurrence of Organic Matter in the Banded Iron Formation of the Fig Tree Group, Barberton, S. Africa: Implication to the Middle Archean Primary Producer
Saito H, Ishida A & Kakegawa T

(2020) New Morphotypes, Cell-Wall Structures, and Elemental Distribution of the Gunflint Microfossils
Sasaki K, Ishida A, Tkahata N, Sano Y & Kakegawa T

(2020) Two Distinct Nitrogen Sources for Microbial Activities in the 2.0 Ga Zaonega Formation
Ishida A, Sasaki K, Hashizume K, Kakegawa T & Lepland A

(2020) Nitrogen Contents and Nitrogen Isotope Fractionation in Subduction Zones
Melai C, Frost D, Furukawa Y, Ishida A & Suzuki A

(2019) High Resolution Analysis of Bivalve Shell by NanoSIMS
Sano Y, Shirai K, Takahata N & Ishida A

(2019) Discovery of New Morphotypes in ca. 1.9 Ga Gunflint Microfossils and their Complex Structure and Heterogeneous Chemistry
Sasaki K, Ishida A, Takahata N, Sano Y & Kakegawa T

(2019) Large Isotopic Variability at the Micron-Scale in Shuram Excursion Carbonates from South Australia
Husson J, Linzmeier B, Sliwinski M, Kitajima K, Ishida A, Maloof A, Schoene B, Peters S & Valley J

(2019) Discovery of Primary Hematite-Silica Clusters in Kukatash Banded Iron Formation at 2.7 Ga Abitibi Greenstone Belt
Ishida A, Nemoto T & Kakegawa T

(2018) Questioning the Biogenicity of Neoproterozoic Superheavy Pyrite
Cui H, Kitajima K, Spicuzza M, Fournelle J, Denny A, Ishida A, Zhang F & Valley J

(2016) Geochemical Study on Precious Coral Skeletons: Effects of Biomineralization and Environmental Variation
Tanaka K, Ishida A, Takahata N, Dueñas L, Shirai K, Watanabe T, Kahng S & Sano Y

(2016) Spatial and Temporal Variations of Helium and Carbon Isotopes at Ontake Volcano, Japan
Sano Y, Kagoshima T, Takahata N, Ishida A, Tomonaga Y, Roulleau E, Pinti D, Fischer T, Lan T, Nishio Y & Tsunogai U

(2016) Partitioning Behavior of Volatiles between Apatite and Melt in Natural Andesitic-Rhyolitic Magmas
Dokyu M, Kogiso T, Sano Y, Takahata N, Ishida A, Koike M, Kawakami T & Yasuda A

(2016) The Nulliak Supracrustal Rocks, Labrador, Canada: Their Occurrence, Age, and the Oldest Evidence for Life
Komiya T, Aoki S, Koshiba K, Tashiro T, Yamamoto S, Ishikawa A, Ishida A, Hori M, Igisu M & Sano Y

(2016) 3.2 Ga Seawater Sulfate Implied from Sulfur Isotopic Compositions of Barite Crystals in Pilbara, Western Australia
Miki T, Kiyokawa S, Takahata N, Ishida A, Ito T, Ikehara M, Yamaguchi K & Sano Y

(2016) Micron-scale δ¹³C Determination by NanoSIMS in a Juina Diamond with a Carbonate Inclusion
Pinti DL, Ishida A, Takahata N, Bureau H, Cartigny P & Sano Y

(2016) Verification of the Onion Shell Model: U-Pb and Pb-Pb Dating of H Chondrites
Onda S, Koike M, Takahata N, Ishida A, Sano Y, Fukuda K, Hiyagon H & Sugiura N

(2015) Study on Geochemical Composition of Precious Coral Skeletons
Tanaka K, Ishida A, Shirai K, Hori M, Takahata N & Sano Y

(2015) Strontium Isotope Compositions of Apatite Inclusions in Archaean Zircon
Ishida A, Takahata N, Sano Y, David J & Pinti D

(2015) Investigation of Martian Surface History: NanoSIMS Analyses of D/H Ratios and U-Pb Chronology of Martian Meteorites
Koike M, Sano Y, Takahata N, Ishida A, Sugiura N & Anand M

(2015) NanoSIMS Analyses of Mediterranean Mussel Shells
Sano Y, Sugihara N, Shirai K, Hori M, Ishida A & Takahata N

(2015) High Spatial Resolution Cl Isotope Analyses of Apatites Using NanoSIMS
Kagoshima T, Takahata N, Ishida A & Sano Y

(2014) Super-High Resolution Analysis of Mussel Shell by NanoSIMS
Sano Y, Sugihara N, Shirai K, Hori M, Ishida A, Takahata N & Fujii Y

(2013) U-Pb Dating of Eoarchaean Zircons Using a NanoSIMS
Ishida A, Takahata N, Sano Y, David J & Pinti DL

(2010) Enhanced Biological Nitrogen and Sulfur Cycles in the Stratified 1.9 Ga Gunflint Ocean
Ishida A, Hashizume K, Oba M & Kakegawa T

(2009) Geochemistry of 1.9 Ga Gunflint Formation in Canada: Unique Oceanic Environments and Microbial Activities
Ishida A, Oba M & Kakegawa T

(2008) Contrast Compositions of Minerals, Kerogens and Lipid-Biomarkers in 1.9 Ga Shallow- and Deep-Water Sedimentary Rocks of the Gunflint Formation, Canada
Ishida A, Kakegawa T & Oba M