Monday Dec. 7, 1998 at 5:30-7:30 pm, Moscone Convention Ctr, Rm 120

Agenda:

5:30 PM Introductions

5:40 PM Discussion of Potential target areas for MARGINS research

- Rationalle from the funding agency perspective
- Comments from the MARGINS Office

6:30 PM Planning of phased approach to research

- Theoretical studies
- Field work
- Other studies

7:30 PM Adjourn

Brief Report:

The MARGINS Office requests that those submitting proposals to this, and future, deadlines to please e-mail us a copy of your proposal title, abstract and summary information (P.I., co-P.I.s, requested amount and dates).
Collation of this voluntarily submitted information will be used to:

1) recognize community priorities in the science they wish to pursue
2) evaluate what aspects of the Program are being addressed or neglected
3) monitor the MARGINS proposal pressure on NSF.

More than 50 people attended the MARGINS Subduction Factory meeting in San Francisco on 12/7/98 to discuss the relative merits of the Izu-Bonin-Mariana versus Tonga-Kermadec systems for a focused study area of intra-oceanic arcs. A vote taken at 7 pm after 1.5 hours of spirited debate was nearly unanimous in favouring the IBM system (35 for, 2 against, 8 abstentions of steering committee and non-US members).

Therefore the community determined, MARGINS focused study field areas are:

1) for SEIZE: Nankai and Japan Trench; Costa Rica and Nicaragua
2) for SubFac: Costa Rica and Nicaragua; Izu-Bonin-Mariana

"In addition to the focus areas, allied studies at selected margins (the SubFac Science Plan specifically mentions the Aleutians and Cascadia) and paleo systems (such as exhumed subduction zones and arc basement) are necessary to make global comparisons to models that will emerge from the focus areas and to provide valuable further insight into these processes. In some cases these may occur after initial studies in the focus areas". (quoted from the Science Plans)

Furthermore, all four MARGINS initiatives (Rupturing Continental Lithosphere, Seismogenic Zone Experiment, Subduction Factory, Sediment Dynamics and Strata Formation) recognize the need for experimental laboratory studies, geodynamical models, and database development (particularly for the focus areas). Proposals to address these aspects are also encouraged.

This page was last updated January 5, 1999