Clumped 13CH2D and 12CHD2 compositions of methyl groups from wood and synthetic monomers: Methods, experimental and theoretical calibrations, and initial results

Autor: Lloyd, MK, Eldridge, DL, Stolper, DA

Methyl groups are found in numerous biogenic and synthetic materials including geologically preserved materials such as wood. The carbon and hydrogen isotope compositions of methyl groups are used as tracers in biogeochemical cycles, as paleothermome

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https://escholarship.org/uc/item/7sr6c57v

Isotopic clumping in wood as a proxy for photorespiration in trees.

Autor: Lloyd MK; Department of Earth and Planetary Science, University of California, Berkeley, CA 94720.; Department of Geosciences, The Pennsylvania State University, University Park, PA 16802., Stein RA; Department of Earth and Planetary Science, University of California, Berkeley, CA 94720.; Department of Chemistry and Physical Sciences, Quinnipiac University, Hamden, CT 06518., Ibarra DE; Department of Earth and Planetary Science, University of California, Berkeley, CA 94720.; Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912., Barclay RS; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560., Wing SL; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560., Stahle DW; Department of Geosciences, University of Arkansas, Fayetteville, AR 72701., Dawson TE; Department of Integrative Biology, University of California, Berkeley, CA 94720., Stolper DA; Department of Earth and Planetary Science, University of California, Berkeley, CA 94720.

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2023 Nov 14; Vol. 120 (46), pp. e2306736120. Date of Electronic Publication: 2023 Nov 06.

Massive formation of early diagenetic dolomite in the Ediacaran ocean: Constraints on the "dolomite problem".

Autor: Chang B; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China.; State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China., Li C; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China; chaoli@cug.edu.cn jhhuang@cug.edu.cn., Liu D; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China., Foster I; UMR6538 Géosciences Océan, Institut Universitaire Européan de la Mer, 29280 Plouzané, France., Tripati A; UMR6538 Géosciences Océan, Institut Universitaire Européan de la Mer, 29280 Plouzané, France.; Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA 90095.; Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90095., Lloyd MK; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125., Maradiaga I; Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA 90095.; Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90095., Luo G; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China., An Z; Hubei Key Laboratory of Paleontology and Geological Environment Evolution, Wuhan Institute of Geology and Mineral Resources, Wuhan 430205, China., She Z; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China., Xie S; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China., Tong J; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China., Huang J; State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China; chaoli@cug.edu.cn jhhuang@cug.edu.cn., Algeo TJ; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China.; State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China.; Department of Geology, University of Cincinnati, Cincinnati, OH 45221-0013., Lyons TW; Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521., Immenhauser A; Institute for Geology, Mineralogy, and Geophysics, Ruhr University Bochum, D-44801 Bochum, Germany.

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2020 Jun 23; Vol. 117 (25), pp. 14005-14014. Date of Electronic Publication: 2020 Jun 08.

The origin of 125I in animal thyroid glands.

Autor: Howe JR, Lloyd MK, Hunt AE, Clegg FG

Publikováno v: Health physics [Health Phys] 1984 Jan; Vol. 46 (1), pp. 244-5.

Acute insulin deficiency provoked in the dog, pig and sheep by single injections of anti-insulin serum.

Autor: Armin J, Cunningham NF, Grant RT, Lloyd MK, Wright PH

Publikováno v: The Journal of physiology [J Physiol] 1961 Jun; Vol. 157 (1), pp. 64-73.