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M. Darby Dyar

Grant

Received a grant from the National Aeronautics and Space Administration (NASA) for Collaborative Research: Redox Ratios in Amphiboles as Proxies for Volatile Budgets in Igneous Systems. The project is for three years.

Publication

Ytsma, C., and Dyar, M.D. (2022) Calculations of limits of blank, limits of detection, and limits of quantification for multivariate analyses of laser-induced breakdown spectroscopy (LIBS) in geological materials. Spectrochimica Acta Part B, 191, 106395.

Steven, C.J., Dyar, MD., McCanta, M.C., Newville, M., and Lanzirotti, A. (2022) The absorption indicatrix as an empirical model to describe anisotropy in x-ray absorption spectra of pyroxenes. American Mineralogist, 107, 654-663. Doi: 10.2138/am-2021-7950.

Leight, C.J., McCanta, M.C., Glotch, T.D., Thomson, B.J., Ye, Cheng, and Dyar, M.D. (2022) Characterization of tephra deposits using VNIR and MIR spectroscopy: A comprehensive terrestrial tephra spectral library. Remote Sensing of the Environment, 273, 112965.

Dyar, M.D., and Ytsma, C.R. (2021) Effect of data set size on geochemical accuracy with laser-induced breakdown spectroscopy. Spectrochimica Acta B, 177, 106073.

Helbert, J., Maturilli, A., Dyar, M.D., and Alemanno, G. (2021) Deriving iron contents from past and future Venus surface spectra with new high temperature laboratory emissivity data. Science Advances, 7, eaba9428.

Wang, A., Yan, Y., Dyar, M.D., Houghton, J.L., Farrell, W.M., Joliff, B.L., McLennan, S.M., Shi, E., and Qu, H. (2020) Amorphization of S, Cl‐salts induced by Martian dust activities. Geophysical Research Letters, 125(12), e2020JE006701.

Dyar, M.D., Helbert, J., Maturilli, A., Müller, N., and Kappel, D. (2020) Probing Venus surface iron contents with six-band VNIR spectroscopy from orbit. Geophysical Research Letters, 47(23), e2020GL090497, https://doi.org/10.1029/2020GL090497.

Dyar, M.D., Helbert, J., Cooper, R.F., Sklute, E.C., Maturilli, A., Muleer, N.T., Kappel, D., and Smrekar, S.E. (2020) Surface weathering on Venus: Constraints from kinetic, spectroscopic, and geochemical data. Icarus, https://doi.org/10.1016/j.icarus.2020.114139.

Ytsma, C.R., Knudson, C.A., Dyar, M.D., McAdam, A.C., Michaud, D.D., and Rollosson, LM. (2020) Accuracies of major, minor, and trace element quantification in rocks by portable laser-induced breakdown spectroscopy (pLIBS). Spectrochimica Acta B., 171, 105946.