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Browse MARGINS Awards in reverse chronological order after start date (most recent first):

MARGINS: Laboratory Experiments on 3-D Circulation and Temperature Distribution in Subduction Zones

MARGINS Focus Area Subduction Factory
NSF Org OCE
Latest Amendment Date August 20, 2001
Award Number 0105456
Award Instrument Standard Grant
Program Manager Rodey Batiza
OCE DIVISION OF OCEAN SCIENCES
GEO DIRECTORATE FOR GEOSCIENCES
Start Date August 15, 2001
Expires July 31, 2003 (Estimated)
Expected Total Amount $143,480 (Estimated)
Investigator Christopher R. Kincaid (Principal Investigator current)
Sponsor U of Rhode Island
Kingston, RI 02881
NSF Program 1620 MARINE GEOLOGY AND GEOPHYSICS
Field Application 0204000 Oceanography
Abstract This laboratory study of subduction is motivated by recent seismic and geochemical advances on understanding of subduction and mantle flow attending subduction. The PI proposes laboratory experiments similar to those he has done for ridges and plumes, to investigate subduction processes. There will be four types of analog lab experiments: 1) studies aimed at understanding longitudinal subduction vs. rollback (slab sinking), 2) experiments to study the role of rollback-style subduction on back arc basin spreading and plate motion, 3) experiments to look at the effects of oscillating longitudinal and rollback subduction on the thermal structure of the slab and wedge, and 4) the effects of this oscillation on generation of mantle diapirs in the wedge region. All these experiments have relevance to the processes being studied in the MARGINS program. Part of the work will be done at Australian National University (ANU) with Ross Griffiths, where Kincaid will spend a one-year sabbatical. This will take advantage of the excellent lab facilities available at ANU.