Publications and Presentations

Publications

Duncan, M.S., N. C. Schmerr, and Y. Fei (in prep.) Extending the solidus for a model ion-rich martian mantle composition to 25 GPa.

Garber, J. M., S. Maurya, J.-A. Hernandez, M. S. Duncan, L. Zeng, H. Zhang, U. Faul, C. A. McCammon, J.-P. Montagner, L. N. Moresi, B. A. Romanowicz, R. L. Rudnick, L. P. Stixrude. (submitted) On the origin of high shear wave velocities in the deep roots of cratons. Geochem. Geophys. Geosys.

Muth, M., M. S. Duncan and R. Dasgupta. (in prep.) Effect of variable Na/K ratio on CO2 solubility in slab-derived rhyolitic melts – An experimental study.

Duncan, M. S., M. B. Weller, J. A. Nittrouer. (in prep.) Formation timescales of Kasei Valles, Mars: Determination from observations and an erosional model.

Duncan, M. S. and R. Dasgupta. (2017) Rise of Earth’s atmospheric oxygen controlled by efficient subduction of organic carbon. Nat. Geosci. doi: 10.1038/ngeo2939.

Duncan, M. S., R. Dasgupta, K. Tsuno. (2017) Experimental determination of CO2 content at graphite saturation along a natural basalt-peridotite melt join: Implications for the fate of carbon in Terrestrial Magma Oceans. Earth Planet. Sci. Lett., 466: 115-128, doi: 10.1016/j.epsl.2017.03.008.

Duncan, M. S. and R. Dasgupta. (2015) Pressure and temperature dependence of CO2 solubility in hydrous rhyolitic melt – Implications for carbon transfer to mantle source of volcanic arcs via partial melt of subducting crustal lithologies. Contributions to Mineralogy and Petrology, 169:54, DOI 10.1007/s00410-015-1144-5.

Chi, H., R. Dasgupta, M. S. Duncan, N. Shimizu (2014) Partitioning of carbon between Fe-rich alloy melt and silicate melt in a magma ocean – Implications for the abundance and origin of volatiles in Earth, Mars, and the Moon. Geochimica et Cosmochimica Acta, 139: 447-471.

Duncan, M. S. and R. Dasgupta. (2014) CO2 solubility and speciation in rhyolitic sediment partial melts at 1.5-3.0 GPa – Implications for carbon flux in subduction zones. Geochimica et Cosmochimica Acta, 124: 328-347.

Duncan, M. S. and C. B. Agee. (2011) The partial molar volume of carbon dioxide in peridotite partial melt at high pressure. Earth and Planetary Science Letters, 312: 429-436.

van Kan Parker, M., C. B. Agee, M. S. Duncan, W. van Westrenen. (2011) Compressibility of molten Apollo 17 orange glass and implications for density crossovers in the lunar mantle. Geochimica et Cosmochimica Acta, 75: 1161-1172.

 

Press about research (3)

Rice University press release about my research: http://news.rice.edu/2017/04/25/study-early-organic-carbon-got-deep-burial-in-mantle-2/

Deep Carbon Observatory press release: https://deepcarbon.net/feature/deep-burial-organic-carbon-mantle-enabled-%E2%80%9Cgreat-oxidation-event%E2%80%9D

Live Science article: http://www.livescience.com/58827-how-early-earth-got-its-oxygen.html

 

Scientific Presentations and Abstracts

Duncan, M. S., N. C. Schmerr, M. B. Weller, C. M. Bertka, and Y. Fei. (2018) The solidus of Mars: Melting the insides of our next door neighbor. 49th LPSC, #2774. (23 Mar 2018)

Lindoo, A., M. S. Duncan, and Y. Fei (2018) Percolation behavior in the Fe-Ni-Si-S-C system and influence on meteorite compositions. 49th LPSC, #2320. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2017) The rise of oxygen in the Earth’s atmosphere controlled by the efficient subduction of organic carbon. AGU Fall Meeting, V21B-07. (12 Dec 2017) [Invited]

Duncan, M. S., N. Schmerr, and Y. Fei. (2017) The solidus of Mars. AGU Fall Meeting, MR31B-0445. [Poster Presentation]

Duncan, M. S. and Y. Fei. (2017) Experimental constraints on metal percolation through silicate: How did early cores form? COMPRES Annual Meeting. (10 Jul 2017)

Duncan, M. S. and R. Dasgupta. (2017) The rise of oxygen in the atmosphere and the carbon subduction cycle. University of Texas Institute for Geophysics Seminar (14 Apr 2017)

Duncan, M. S. and Y. Fei. (2017) Experimental constraints on metal percolation through silicate: Implications for core formation on asteroids and planetesimals. 48th LPSC, #1405. [Poster presentation]

Duncan, M. S. and Y. Fei. (2016) The effect of carbon on the dihedral angle of metallic melt with implications for the timing and efficiency of core formation. AGU Fall Meeting, MR33B-2687 [Poster presentation]

Billen, M., C. Crépisson, M. S. Duncan, J. M. Garber, A. Ibourichene, P. Madrigal, T. Olugboji, J. Rodriguez­Gonzalez, C. Roy, D. Sandiford, J. Valencia­Cardona, S. Grand. (2016) Metastability of subducted slabs in the mantle transition zone: A combined geodynamic, petrologic, and seismological approach. AGU Fall Meeting, DI31B-2639. [Poster presentation]

Zeng, L., M. S. Duncan, J. M. Garber, J.-A. Hernandez, S. Maurya, H. Zhang, U. Faul, C. A. McCammon, J.-P. Montagner, L. N. Moresi, B. A. Romanowicz, R. L. Rudnick, L. P. Stixrude. (2016) On the origin of high shear wave velocities in the deep roots of cratons. AGU Fall Meeting, DI31B-2639. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2016) The carbon cycle of terrestrial magma oceans – Experimental constraints of CO2 solubility in peridotite. University of Maryland Geochemistry Seminar (30 Mar 2016)

Duncan, M. S. and R. Dasgupta. (2016) Experimental constraints on carbon solubility in terrestrial magma oceans: Implications for the efficiency of early carbon cycling on Earth and Mars. 47th LPSC, #1774. (21 Mar 2016)

Duncan, M. S. and R. Dasgupta. (2015) Experimental constraints on CO2 solubility in terrestrial magma oceans. AGU Fall Meeting, P11A-2066. [Poster presentation]

Weller, M. B. and M. S. Duncan. (2015) Can mantle potential temperatures be used to infer the tectonic evolution of terrestrial planets? AGU Fall Meeting, P51D-03.

Duncan, M. S. and R. Dasgupta. (2015) Experimental constraints on CO2 solubility in rhyolitic slab melts – Implications for carbon flux in subduction zones. Deep Carbon Observatory International Science Meeting. [Poster presentation]

Duncan, M. S., M. B. Weller, J. K. Wicks, N. R. Knezek, B. A. Black, S. A. Johnston, S. Hongsresawat, N. J. Towles, C. Thissen, N. C. Schmerr, M. P. Panning, L. Montési, M. Manga and P. Lognonné. (2015) Mars Thermal History: Core, Atmosphere, Mantle, Phobos, and Surface (MaTH CAMPS). 46th LPSC, #2900. [Poster presentation]

Duncan, M. S., M. B. Weller, and J. A. Nittrouer. (2015) Formation timescales of Kasei Valles, Mars: Determination from observations and an erosional model. 46th LPSC, #2854. [Poster presentation]

Weller, M. B. and M. S. Duncan. (2015) Insight into terrestrial planetary dynamics via their mantle potential temperatures. 46th LPSC, #2749. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2014) Experimental constraints on CO2 solubility in rhyolitic slab melts – Implications for carbon flux in subduction zones. AGU Fall Meeting, V13A-4745. [Poster presentation]

Muth, M., M. S. Duncan and R. Dasgupta. (2014) Effect of variable Na/K ratio on CO2 solubility in slab-derived rhyolitic melts – An experimental study. AGU Fall Meeting, DI13A-4266. [Poster presentation]

Dasgupta, R., H. Chi, Y. Li, M. S. Duncan, K. Tsuno. (2014) Carbon dissolution in reduced silicate and alloy melts – A frontier for understanding evolution of terrestrial planets. AGU Fall Meeting, DI13A-4260. [Poster presentation]

Wicks, J. K., M. B. Weller, N. J. Towles, C. Thissen, N. R. Knezek, S. Johnston, S. Hongsresawat, M. S Duncan, B. A. Black, N. C. Schmerr, M. P. Panning, L. Montesi, M. Manga and P. H. Lognonné. (2014) Mars thermal history: Core, atmosphere, mantle, Phobos and surface (MaTH CAMPS). AGU Fall Meeting, DI51A-4351. [Poster presentation]

Duncan, M. S., M. B. Weller, J. A. Nittrouer (2014) Erosional and depositional evolution of Kasei Valles, Mars: Implications for timescales of formation. GSA 2014, #225-3. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2014) Controls on CO2 solubility in hydrous rhyolitic melt – Implications for carbon transfer to volcanic arcs via partial melt of the subducting slab. Deep Carbon Observatory: Extreme Physics and Chemistry 2014 Workshop. (5 Oct. 2014)

Duncan, M. S. and M. B. Weller. (2014) Venus geochemistry mission: A global perspective. Venus Exploration Targets Workshop, #6034. [Poster presentation]

Weller, M. B. and M. S. Duncan. (2014) Venus: Characterizing thermal tectonic regimes. Venus Exploration Targets Workshop, #6027. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2013) CO2 solubility in rhyolitic melts as a function of P, T, and fO2 – Implications for carbon flux in subduction zones. AGU Fall Meeting, V13C-2627. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2013) CO2 carrying capacity of siliceous slab melts – Implications for carbon flux in subduction zones. Extreme Physics and Chemistry Pre-AGU Workshop. (7 Dec. 2013)

Duncan, M. S. and R. Dasgupta. (2013) Solubility and speciation of CO2 in sediment partial melts under graphite saturated conditions. Goldschmidt Meeting. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2012) Solubility and speciation of CO2 in natural rhyolitic melts at 1.5-3.0 GPa – Implications for carbon flux in subduction zones via sediment partial melts. AGU Fall Meeting, V53D-2870. [Poster presentation]

Duncan, M. S. and R. Dasgupta. (2011) CO2 solubility in natural rhyolitic melts at high pressures – Implications for carbon flux in subduction zones by sediment partial melts. AGU Fall Meeting, V41D-2523. [Poster presentation]

Duncan, M. S. and C. B. Agee. (2010) High pressure experiments on carbonated peridotite with applications to the mantle. 41st LPSC, #1488. [Poster presentation]

Duncan, M. S. and C. B. Agee. (2009) Partial molar volume of CO2 in peridotitic melt at high pressure and applications to melt mobility in the mantle. AGU 2009 Fall Meeting, MR43A-1861. [Poster presentation]

Duncan, M. S. and C. B. Agee. (2009) Partial molar volume of CO2 in peridotite partial melt at high pressure. 40th LPSC, #1406. [Poster presentation]