Subduction initiation: spontaneous and induced (R.J. Stern).
How life began on Earth: a status report (J.L. Bada).
Early Earth differentiation (M.J. Walter, R.G. Trønnes).
Chondrules (B. Zanda).
Planetary accretion in the inner Solar System (J.E. Chambers).
The chemistry of subduction-zone fluids (C.E. Manning).
Solar and solar-wind isotopic compositions (R.C. Wiens et al.).
The importance of ocean temperature to global biogeochemistry (D. Archer et al.).
The hazard of near-Earth asteroid impacts on Earth (C.R. Chapman).
The terrestrial Li isotope cycle: light-weight constraints on mantle convection (T. Elliott, A. Jeffcoate, C. Bouman).
African climate change and faunal evolution during the Pliocene-Pleistocene (P.B. deMenocal).
Thermal evolution of the Earth as recorded by komatiites (T.L. Grove, S.W. Parman).