Rosemary Hickey-Vargas

Rosemary Hickey-Vargas

Ph.D. Massachusetts Institute of Technology, 1983 B.S. (Honors) Hofstra University, 1977

Research Interests:

Ongoing research centers on the use of geochemistry to explore processes affecting the earth's mantle and crust. A special research emphasis is on igneous rocks from convergent plate margins, conducted with funding from NSF's Margins and Subduction Factory Initiatives. Study areas include the active volcanoes and basement rocks of the central Chilean Andes (Southern Volcanic Zone) and the island arcs and marginal basins of the western Pacific Ocean.

Investigations in the Chilean Andes have been conducted since 1981 in collaboration with colleagues at Chilean universities. Fieldwork and sample collection in southern Chile is an important part of this research, while geochemical analyses are done in the Earth Sciences Department at FIU. Research topics center on the relationship between magma chemistry, edifice type, crustal structure, as well as subduction parameters.

Research in the Philippine Sea region has continued since 1979, with emphasis on Tertiary and older rocks associated with the Izu-Bonin-Mariana arc. Most sampling for this research has been done by DSDP, ODP and IODP drilling, and dredging cruises. Current research centers on the oldest igneous activity in this region and its implications for the early tectonic history of the Western Pacific and subsequent arc magmatism. To view my website click here.