Marc-Antoine Longpre

Assistant Professor
Volcanology and Igneous Petrology

Science Building - Room E214
Phone: 718-997-3259
mlongpre@qc.cuny.edu

Research Interests

My research interests lie where volcanology and igneous petrology mingle and mix. In the field, I examine and sample tephra and lava sequences to reconstruct the eruptive histories of volcanoes. In the lab, I analyze the chemical composition of volcanic rocks and their constituents (volcanic glass, minerals and their inclusions) to decipher the dynamics of magma reservoir and eruption processes, such as magma differentiation, mixing and degassing, and the environmental consequences of volcanic eruptions.

 I am particularly interested in the following topics

•  Triggering mechanisms of explosive volcanic eruptions
•  Architecture of magma plumbing systems
•  Volatile element budget of magmas recorded by melt inclusions
•  Sulfur in magmas
•  Climatic and environmental impacts of volcanic eruptions
•  Timescales of magmatic processes
•  Geochronology, eruptive history and hazards assessment at individual volcanoes
•  Giant landslides and their effects on ocean island volcanoes
Ongoing projects focus on Cosigüina and Concepción volcanoes, in Nicaragua, and volcanoes of the Canary Islands, particularly on the island of El Hierro.
 
 
Active Research Projects
 
  • Origin of volatile-rich magmas in the Canary Islands: Insights from sulfur isotopes
  • Magma chamber conditions leading to the dacitic Tierra Blanca eruption at Concepción volcano, Nicaragua
  • The 1730-1736 Lanzarote eruption, Canary Islands: Eruption dynamics and timescales of magmatic processes
  • Degassing of Canary Island magmas
  • Recurrent, chemically zoned explosive eruptions at Cosigüina volcano, Nicaragua
  • Volcanic and magmatic evolution at Momotombo and Monte Galán volcanoes, Nicaragua
  • Timing of mafic recharge in the run-up to the 2015–2016 Momotombo eruption
 
Current Research Students
 

Lisa Hlinka (M.A)

Samantha Tramontano (Ph.D.)

John Zayac (Ph.D.)

Former Research Students

Patrick Beaudry (M.A.), now Ph.D. student at MIT

James Muller (M.A.), now PhD student at Harvard

 
Teaching Philosophy and Interests
 

I believe that the best way to learn is to be placed in a situation where you have the freedom to experiment for yourself. Thus, as a teacher or supervisor, my role is to bring the student in that situation, guiding him/her along the way, and to create an environment where resources are accessible, and standards are high, yet achievable. I try to deliver frequent feedback. When mentoring students conducting research projects, I typically provide a starting “framework”, while encouraging the students to explore any avenue that interests them. More often than not, this leads to interesting findings. Of course, this approach is very flexible and is adjusted based on the needs and personality of each student.

In my classes, I favor interactive lectures coupled with frequent team lab work to put the student in the center of the learning process. People learn well collectively, and collaboration is a key skill for future success. I’m also very much interested in the use of emerging technologies in teaching and learning.
Whenever possible, I run field trips associated with topics covered in class, so that the students have the complete hands-on-the-outcrop experience.

Courses Taught

Physical Geology (GEOL 101)

Methods in Geoscience (GEOL 200)

Earth Materials I & II (GEOL 201 & 202)

Volcanoes and Climate (GEOL 383/799.3)

Igneous Petrology (GEOL 383/799.3)

SEES Colloquium (GEOL 799.1)

Selected Publications

Longpré, M.-A., Stix, J., Klügel, A., Shimizu, N., 2017. Mantle to surface degassing of carbon- and sulphur-rich alkaline magma at El Hierro, Canary Islands. Earth and Planetary Science Letters 460, 268-280. doi:10.1016/j.epsl.2016.11.043.

Klügel, A., M-A Longpré, L. García-Cañada, and J. Stix (2015), Deep intrusions, lateral magma transport and related uplift at ocean island volcanoes, Earth and Planetary Science Letters, 431, 140-149, doi: 10.1016/j.epsl.2015.09.031.

Longpré, M.-A., J. Stix, C. Burkert, T. H. Hansteen, and S. Kutterolf (2014), Sulfur budget and global climate impact of the AD 1835 eruption of Cosigüina volcano, Nicaragua, Geophysical Research Letters, 41, doi:10.1002/2014GL061205.

Longpré, M.-A., J. Stix, F. Costa, E. Espinoza and A. Muñoz (2014), Magmatic processes and associated timescales leading to the January 1835 eruption of Cosigüina volcano, Nicaragua, Journal of Petrology, 55, 1171-1201, doi: 10.1093/petrology/egu022.

Longpré, M.-A., A. Klügel, A. Diehl, and J. Stix (2014), Mixing in mantle magma reservoirs prior to and during the 2011-2012 eruption at El Hierro, Canary Islands, Geology, 42, 315-318, doi: 10.1130/g35165.1.

Troll, V.R., A. Klügel, M.-A. Longpré, S. Burchardt, F.M. Deegan, J.C. Carracedo, S. Wiesmaier, U. Kueppers, B. Dahren, L.S. Blythe, T.H. Hansteen, C. Freda, D.A. Budd, E.M. Jolis, E. Jonsson, F. Meade, C. Harris, S. Berg, L. Mancini, M. Polacci, and K Pedroza (2012), Floating stones off El Hierro, Canary Islands: xenoliths of pre-island sedimentary origin in the early products of the October 2011 eruption, Solid Earth, 3, 97-110, doi: 10.5194/se-3-97-2012.

Longpré, M.-A., J. P. Chadwick, J. Wijbrans, and R. Iping (2011), The age of the El Golfo debris avalanche, El Hierro (Canary Islands): New constraints from laser and furnace 40Ar-39Ar dating, Journal of Volcanology and Geothermal Research, 203, 76-80, doi: 10.1016/j.jvolgeores.2011.04.002.

Helo, C., M.-A. Longpré, N. Shimizu, D. Clague, and J. Stix (2011), Explosive eruptions on mid-ocean ridges driven by CO2-rich magmas, Nature Geoscience, 4, 260-263, doi:10.1038/ngeo1104.

Wilcock, J., M.-A. Longpré, J. M. de Moor, J. Ross, and M. Zimmerer (2010), Calderas bottom-to-top: An online seminar and field trip, Eos Trans. AGU, 91, doi:10.1029/2010EO010002.

Longpré, M.-A., V. R. Troll, T. R. Walter, and T. H. Hansteen (2009), Volcanic and geochemical evolution of the Teno massif, Tenerife (Canary Islands): some repercussions of giant landslides on ocean island magmatism, Geochemistry Geophysics Geosystems, 10, Q12017, doi:10.1029/2009GC002892.

Manconi, A., M.-A. Longpré, T. R. Walter, V. R. Troll, and T. H. Hansteen (2009), The effects of flank collapses on volcano plumbing systems, Geology, 37, 1099-1102, doi: 10.1130/G30104A.1.

Longpré, M.-A., V. R. Troll, and T. H. Hansteen (2008), Upper mantle magma storage and transport under a Canarian shield-volcano, Teno, Tenerife (Spain), Journal of Geophysical Research, 113, B08203, doi:10.1029/2007JB005422.

Longpré, M.-A., R. del Potro, V. R. Troll, and G. R. Nicoll (2008), Engineering geology and future stability of the El Risco landslide, NW-Gran Canaria, Spain, Bulletin of Engineering Geology and the Environment, 67, 165-172, doi: 10.1007/s10064-007-0119-9.

Longpré, M.-A., T. Staudacher, and J. Stix (2007), The November 2002 eruption at Piton de la Fournaise volcano, La Réunion Island: ground deformation, seismicity, and pit crater collapse, Bulletin of Volcanology, 69, 511-525, doi: 10.1007/s00445-006-0087-0.

Kennedy, B., J. Stix, J. W. Vallance, Y. Lavallée, and M.-A Longpré (2004), Controls on caldera structure: results from analogue sandbox modeling, Geological Society of America Bulletin, 116, 515-524, doi: 10.1130/B25228.1.

Lavallée, Y., B. Kennedy, J. Stix, M. Richer, and M.-A. Longpré (2004), Caldera subsidence in areas of variable topographic relief: results from analogue modeling, Journal of Volcanology and Geothermal Research, 129, 219-236, doi: 10.1016/S0377-0273(03)00241-5.

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