Programs: To apply for Post-doctoral or Graduate Fellowships at AMNH, please go to RGGS FELLOWSHIPS.
To apply for the AMNN Physical Sciences REU program, please see REU APPS.
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I serve as the curator of the AMNH meteorite collection. AMNH affiliates, students, and I use the collection to understand early solar system processes such as planet formation. Part of our mission is to make meteorite samples available for research by scientists across the world. Collections-based research is vital to the exploration of space and a better understanding of our origins.
(2004 Ebel white paper) Meteorites, Asteroids, Planets, and the Exploration Vision Strategy
(2015 CAPTEM white paper) Astromaterials Research in Planetary R&A

Research in meteorites at AMNH focuses on modeling how gas, solid, and melt phases interact at high temperatures and low pressures, to understand the condensation of the first solids, and molten (liquid) rock droplets in the solar system, precursor materials for the planets. We also apply image analysis to 3-dimensional x-ray CT-scans and microscopic 2D elemental maps of meteorites to understand their chemistry and how they are put together. Check these links to see meteorites in a whole new light: TOMOGRAPHY (3D) and PETROGRAPHY (2D).

My research career began with laboratory investigations of how silver, copper, nickel and platinum-group metal ores form in the Earth, to model their thermodynamic properties, and develop predictive tools. See: MAGMATIC SULFIDES and HYDROTHERMAL SULFOSALTS. Today, we are working on the volatile content of explosive silicic magmas in the AMNH experimental petrology lab.