Susanne Straub

Lamont Assistant Research Professor
Susanne Straub
Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Geochemistry
415 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US

Phone: 

(845) 365-8464

Fax: 

(845) 365-8155

Fields of interest: 

Magmatic fluxes in subduction zones

Research Statement: 

The processing of crustal and mantle materials in subduction zones plays a key role in creating and maintaining the habitable Earth. In order to understand the impact of magmatic subduction zones fluxes on the broader geochemical cycles, I pursue integrative geochemical and geological studies in the intra-oceanic Izu-Bonin-Mariana Arc (NW Pacific), and the continental Trans-Mexican Volcanic Belt. 
 

The lifetime of arcs (~20-100 myr) scales to the evolution of the Earth’s mantle and crustal reservoirs as well as to the plate tectonic cycle, to the opening and closing of ocean gateways, and to the evolution of the global climate. Understanding if and how the arc outflux is linked to these cycles requires a temporally precise and highly resolved record of arc evolution. Such a record is preserved in the minute igneous particles of marine tephra fallout and can be obtained by using state-of-the-art analytical techniques. 
 

My research in Mexico focuses on understanding arc growth rates as key variable of mass balance calculations. We begun a study that shall lead to a closer integration of geochemistry with geology and volumes of extrusive series emplaced through time. This will allow us to relate subduction parameters (e.g. crustal thickness, convergence rate) to the chemical compositions of convergent margin volcanics and to test various hypotheses for the formation of convergent margin magmas. This data base project is complemented by selected field studies that aim to understand differentiation and origin of the alkaline and calc-alkaline magmas of the Mexican Volcanic Belt.

Active projects:

  • Testing the Processes of Melt Differentiation in the Mexican Volcanic Belt, NSF-EAR
  • Sr-Nd-Pb-Hf isotope evolution of the Mariana volcanic arc, NSF-EAR (MARGINS) 
Education
List of Degrees from highest to lowest
Habilitation
Christian-Albrechts-Universität, Kiel, Germany
2004
Ph.D.
Christian-Albrechts-Universität, Kiel, Germany
1991
Diplom ( ~M.Sc.)
Technische Universität Clausthal, Clausthal-Zellerfeld, Germany
1988
Disciplines

Primary Discipline: 

Secondary Discipline: 

Selected Publications:
Geochemical and Petrological Insights into the Tectonic Origin of the Transmexican Volcanic Belt, Gómez-Tuena, A.; Mori, L.; Straub, S.M. Earth Science Reviews (2017) doi:10.1016/j.earscirev. 2016.12.006
Late Cenozoic Tephrostratigraphy Offshore Southern Central America: 2. Implications for magma subduction rates and subduction erosion, Schindlbeck, J.C.; Kutterolf, S.; Freundt, A.; Straub, S.M.; Vannuchi, P.; Alvarado, G.E. Geochem Geophys Geosys, Volume: 17 p.: 4585–4604 (2016) doi:10.1002/2016GC006504.
Crustal Recycling by Subduction Erosion in the central Mexican Volcanic Belt, Straub, S. M.; Gómez-Tuena,.; Bolge, L. L.; Brandl, A., Espinasa-Perena, R.; Solari, L.; Stuart, F. M.; Vannucchi, P.; Zellmer, G. F. Geochim Cosmochim Acta, Volume: 166 p.: 29-52 (2015) doi 10.1016/j.gca.2015.06.001
Temporal Evolution of the Mariana Arc: Mantle Wedge and Subducted Slab Controls Revealed with a Tephra Perspective, Straub, S. M.; Woodhead, J. D.; Arculus, R. J. Journal of Petrology, Volume: 56 (2) p.: 409-439 (2015) doi 10.1093/petrology/egv005.
Eolian dust input to the Subarctic North Pacific, Serno, S.; Winckler, G.; Anderson, R.F.; Hayes, C.T.; McGee, D.; Machalett, B.; Ren, H.; Straub, S.M.; Gersonde, R.; Haug, G.H. Earth and Planetary Science Letters, Volume: 387 p.: 252-263 (2014)
A Genetic Link between Silicic Slab Components and Calc-Alkaline Arc Volcanism in central Mexico, Straub, S.M.; Zellmer, G.F.; Gómez-Tuena, A.; Espinasa-Perena, R.; Martin-Del Pozzo, A.L.; Stuart, F.M.; Langmuir, C.H. Geol Soc Lon Spec Pub 385 p.: 31-64 (2014) doi 10.1144/SP385.14
The processes of melt differentiation in arc volcanic rocks: Insights from OIB-type arc magmas in the central Mexican Volcanic Belt, Straub, S.M.; Gomez-Tuena, A.; Zellmer, G.F.; Espinasa-Perena, R.; Stuart, F.M.; Cai, Y.; Langmuir, C.H.; Martin-Del Pozzo, A.; Mesko, G.T. J Petrol p.: 665-701 (2013) doi:10.1093/petrology/egs081
Formation of Hybrid Arc Andesites beneath Thick Continental Crust, Straub, S. M.; Gómez-Tuena, A.; Stuart, F. M.; Zellmer, G. F.; Espinasa-Perena, R.; Cai, Y.; Iizuka, Y. Earth Planet Sci Lett, Volume: 303 p.: 337-347 (2011) doi 10.1016/j.epsl.2011.01.013.
Mid-ocean-ridge basalt of Indian type in the northwest Pacific Ocean basin, Straub, S. M.; Goldstein, S. L.; Class, C.; Schmidt, A. Nature Geoscience Apr, Volume: 2, Issue: 4 p.: 286-289 (2009) Doi 10.1038/Ngeo471
Evidence from high-Ni olivines for a hybridized peridotite/pyroxenite source for orogenic andesites from the central Mexican Volcanic Belt, Straub, S. M.; LaGatta, A. B.; Pozzo, A. L. M. D.; Langmuir, C. H. Geochemistry Geophysics Geosystems Mar 7, Volume: 9 p.: - (2008) Doi 10.1029/2007gc001583
The systematics of chlorine, fluorine, and water in Izu arc front volcanic rocks: Implications for volatile recycling in subduction zones, Straub, S. M.; Layne, G. D. Geochimica Et Cosmochimica Acta Nov, Volume: 67, Issue: 21 p.: 4179-4203 (2003) Doi 10.1016/S0016-7037(00)00307-7