Max Lloyd's research interests include isotope geochemistry, biogeochemical cycles, plant metabolism, and surface and near-surface carbon cycling.
In the News
![Research finds increasing temperatures can limit ability of trees to filter air: '[Trees] are essentially coughing instead of breathing'](/sites/default/files/styles/medium_4_3_/public/cover-images/research-finds-increasing-temperatures-can-limit-ability-trees-filter-air-trees-are-essentially.jpg?h=d1cb525d&itok=KqDN2eW5)
Research Keywords
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Recent Publications
Temperatures of Vein Formation Associated With Plate Interface Deformation Constrained by Oxygen and Clumped Isotope Thermometry
Chen, T. W., Smye, A., Lloyd, M., Fisher, D. & Hashimoto, Y., Jun 2024, In: Geochemistry, Geophysics, Geosystems. 25, 6, e2024GC011516.Research output: Contribution to journal › Article › peer-review
Microbial Autotrophy Recorded by Carbonate Dual Clumped Isotope Disequilibrium
Ingalls, M., Leapaldt, H. C. & Lloyd, M. K., Jun 2024, In: Geochemistry, Geophysics, Geosystems. 25, 6, e2024GC011590.Research output: Contribution to journal › Article › peer-review
Isotopic clumping in wood as a proxy for photorespiration in trees
Lloyd, M. K., Stein, R. A., Ibarra, D. E., Barclay, R. S., Wing, S. L., Stahle, D. W., Dawson, T. E. & Stolper, D. A., 2023, In: Proceedings of the National Academy of Sciences of the United States of America. 120, 46, 2306736120.Research output: Contribution to journal › Article › peer-review
Triple oxygen isotope systematics of diagenetic recrystallization of diatom opal-A to opal-CT to microquartz in deep sea sediments
Ibarra, D. E., Yanchilina, A. G., Lloyd, M. K., Methner, K. A., Chamberlain, C. P., Yam, R., Shemesh, A. & Stolper, D. A., Mar 1 2022, In: Geochimica et Cosmochimica Acta. 320, p. 304-323 20 p.Research output: Contribution to journal › Article › peer-review
Constraints on Early Paleozoic Deep-Ocean Oxygen Concentrations From the Iron Geochemistry of the Bay of Islands Ophiolite
Stolper, D. A., Pu, X., Lloyd, M. K., Christensen, N. I., Bucholz, C. E. & Lange, R. A., Jul 2022, In: Geochemistry, Geophysics, Geosystems. 23, 7, e2021GC010196.Research output: Contribution to journal › Article › peer-review
Clumped 13CH2D and 12CHD2 compositions of methyl groups from wood and synthetic monomers: Methods, experimental and theoretical calibrations, and initial results
Lloyd, M. K., Eldridge, D. L. & Stolper, D. A., Mar 15 2021, In: Geochimica et Cosmochimica Acta. 297, p. 233-275 43 p.Research output: Contribution to journal › Article › peer-review
Methoxyl stable isotopic constraints on the origins and limits of coal-bed methane
Lloyd, M. K., Trembath-Reichert, E., Dawson, K. S., Feakins, S. J., Mastalerz, M., Orphan, V. J., Sessions, A. L. & Eiler, J. M., Nov 12 2021, In: Science. 374, 6569, p. 894-897 4 p.Research output: Contribution to journal › Article › peer-review
Carbonate clumped isotope constraints on burial, uplift and exhumation histories of the Colorado Plateau
Ryb, U., Lloyd, M. K. & Eiler, J. M., Jul 15 2021, In: Earth and Planetary Science Letters. 566, 116964.Research output: Contribution to journal › Article › peer-review
Triple oxygen isotopes of meteoric hydrothermal systems - implications for palaeoaltimetry
Chamberlain, C. P., Ibarra, D. E., Lloyd, M. K., Kukla, T., Sjostrom, D., Gao, Y. & Sharp, Z. D., 2020, In: Geochemical Perspectives Letters. 15, p. 6-9 4 p.Research output: Contribution to journal › Article › peer-review
Massive formation of early diagenetic dolomite in the Ediacaran ocean: Constraints on the "dolomite problem"
Chang, B., Chang, B., Li, C., Liu, D., Foster, I., Tripati, A., Tripati, A., Tripati, A., Lloyd, M. K., Maradiaga, I., Maradiaga, I., Luo, G., An, Z., She, Z., Xie, S., Tong, J., Huang, J., Algeo, T. J., Algeo, T. J. & Algeo, T. J. & 2 others, , Jun 23 2020, In: Proceedings of the National Academy of Sciences of the United States of America. 117, 25, p. 14005-14014 10 p.Research output: Contribution to journal › Article › peer-review
Clumped Isotopes Link Older Carbon Substrates With Slower Rates of Methanogenesis in Northern Lakes
Douglas, P. M. J., Gonzalez Moguel, R., Walter Anthony, K. M., Wik, M., Crill, P. M., Dawson, K. S., Smith, D. A., Yanay, E., Lloyd, M. K., Stolper, D. A., Eiler, J. M. & Sessions, A. L., Mar 28 2020, In: Geophysical Research Letters. 47, 6, e2019GL086756.Research output: Contribution to journal › Article › peer-review
Three wood isotopic reference materials for δ2H and δ13C measurements of plant methoxy groups
Greule, M., Moossen, H., Lloyd, M. K., Geilmann, H., Brand, W. A., Eiler, J. M., Qi, H. & Keppler, F., Feb 5 2020, In: Chemical Geology. 533, 119428.Research output: Contribution to journal › Article › peer-review
The Isotopic Imprint of Life on an Evolving Planet
Lloyd, M. K., McClelland, H. L. O., Antler, G., Bradley, A. S., Halevy, I., Junium, C. K., Wankel, S. D. & Zerkle, A. L., Oct 1 2020, In: Space Science Reviews. 216, 7, 112.Research output: Contribution to journal › Review article › peer-review
Mechanism of solid-state clumped isotope reordering in carbonate minerals from aragonite heating experiments
Chen, S., Ryb, U., Piasecki, A. M., Lloyd, M. K., Baker, M. B. & Eiler, J. M., Aug 1 2019, In: Geochimica et Cosmochimica Acta. 258, p. 156-173 18 p.Research output: Contribution to journal › Article › peer-review
Comparison of Experimental vs Theoretical Abundances of 13CH3D and 12CH2D2 for Isotopically Equilibrated Systems from 1 to 500 °c
Eldridge, D. L., Korol, R., Lloyd, M. K., Turner, A. C., Webb, M. A., Miller, T. F. & Stolper, D. A., Dec 19 2019, In: ACS Earth and Space Chemistry. 3, 12, p. 2747-2764 18 p.Research output: Contribution to journal › Article › peer-review