Treiman Main Page Mars The Moon Venus Earth Asteroids Resources Research Philosophy

Geology, Petrology, and Geochemistry Across the Solar System

Mars 

Research

• Rock-Water Chemical Reactions
• Magmatic Processes and Magma Compositions
• Martian Meteorites
• Mars Gullies

Spacecraft Participation

• Mars 2020, Co-I with PIXL Instrument (X-ray Fluorescence).
• Mars Science Laboratory, Co-I with CheMin Instrument (X-ray Diffraction)

The Moon 

Research

• Volatile Components and Their Isotopes
• Ancient Lunar Highlands
• Lunar Meteorites
• Lunar Magma Ocean

Spacecraft Participation

• MARE, 'New Frontiers' geochemical lander proposal, 2015

Management / Advisory / Analysis

• Organizer, Second Lunar Highlands Conference, with field study at Stillwater Complex, 2012.

Venus 

Research

• Surface-atmosphere chemical reactions
• Magma Chemistry

Spacecraft Participation

• VISE 'New Frontiers' lander proposal, current
• VERITAS "Discovery' orbiter proposal, 2010
• SAGE 'New Frontiers' lander proposals, 2004, 2009

Management / Advisory / Analysis

• Venus Technology and Instrumentation Workshop, Section Lead 2015.
• NASA Decadal Survey, 2011, Member of Inner Planets Panel (included Venus).
• Venus Flagship Study, member, 2010.
• Venus Geochemistry Workshop, Convenor, 2009.
• VEXAG Active Participant, 2009-present.

The Earth 

Research

• Igneous Petrology
• Terrestrial Analogs
• Carbonatites

Asteroids 

Research

• Rumuruti (R) Chondrites
  • Amphibole and Biotite: Implications for Asteroidal Volatiles
  • Fragments in Ureilite Regolith Breccias
• Isotopic Constraints on Asteroidal Volatiles
  • Rumuruti (R) Chondrites and Early Solar System
  • Achondrites and Magma Oceans (?)

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Recent Management

• Co-Lead, LPI-JSC Joint Working Group, Current
• Lead, NASA Proposal Review Panel Groups, Various
• Section Lead, Venus Technology and Instrumentation Workshop, 2015
• Associate Director, Lunar and Planetary Institute, 2010-2012
• Member, NASA Decadal Survey - Inner Planets Panel, 2011
• Member, Venus Flagship Study Team, 2010