The NSF MARGINS Concept Broad focus evolution of

The NSF MARGINS Concept Broad focus: evolution of continental margins • Interdisciplinary Initiatives developed from community workshops 1988 -2000 – All “cross the shoreline” – Active processes – Focus Sites concentrate resources The Machinery: • Independent NSF Panel funds all science proposals: reviewed, competitive • Steering Committee (MSC) represents Community – Logistics and coordination: MARGINS Office www. nsf-margins. org

A Global Program • All Focus Sites are outside the U. S. • Many have major International Partners • Diverse sets of data – Onshore and Marine – Geophysical, Geological, Geochemical, … – Archival and Real-time The program only succeeds through international engagement

Funding Summary • 94 projects, 182 grants, ~120 PI’s (through FY 08) • Many data types, onland, marine, …

Initiatives • • Sub. Fac: The Subduction Factory SEIZE: Seismogenic Zone Experiment S 2 S: Sediment Source to Sink RCL: Rupturing Continental Lithosphere SEIZE RCL Sub. Fac, SEIZE S 2 S Focus Sites

Four Initiatives • How do continents grow? – composition: The Subduction Factory – mechanics: Seismogenic Zone Experiment • How do continental margins change? – material transport: Sediment Source to Sink – mechanics: Rupturing Continental Lithosphere

Initiatives & Focus Sites S 2 S Sediment Source-to-SInk • Production, transport & storage of sediments & solutes from source to sink Gulf of Papua Waipaoa, N. Z. Seismogenic Zone • Nature and genesis of large subductionzone thrust earthquakes and the faults that make them SEIZE Nankai Central America

Initiatives & Focus Sites Rupturing Continental Lithosphere • Driving forces for rift initiation, propagation and evolution, from continent to ocean basin RCL Gulf of California/Salton Trough Allied: Red Sea Subduction Factory • The cycling of material, fluids, and energy from trench to arc and deep earth; growth of continents Sub. Fac Central America Izu-Bonin-Mariana Allied: Cascadia, Aleutians

Themes and Initiatives • How do continents grow? – composition: The Subduction Factory Central America Izu-Bonin-Marianas – mechanics: Seismogenic Zone Experiment Central America Nankai • How do continental margins change? – material transport: Sediment Source to Sink Fly/Papua (New Guinea) Waipaoa (New Zealand) – mechanics: Rupturing Continental Lithosphere Gulf of California / Salton Trough

Initiatives: Sub. Fac Subduction Factory Energy, mass & chemical balances; effect on continental growth and evolution Subduction parameters as forcing functions: production of magma and fluid Volatile cycles and chemical, physical & biological processes - trench to deep mantle Sub. Fac Izu-Bonin-Mariana Central America Allied: Cascadia, Aleutians • 79 NSF-MARGINS Awards • Major workshops: 1998, 2000, 2009 • Six Site and Topical workshops (site wkshps in 2007) • 3 Monographs or Special Issues

Sub. Fac: IBM • 27 NSF-MARGINS Awards • Multiple field projects • 8 Major Workshops • Anatahan Rapid Response

Initiatives: SEIZE Seismogenic Zone SEIZE Controls on seismic energy release during Earthquakes Temporal relationships among stress, strain, pore fluid pressure thru seismic cycle Controls on locked, unlocked regions on subduction interface Propagation, slip rates and distribution of fast, slow, tsunamigenic earthquakes Nankai Central America • 40 NSF-MARGINS Awards • Major workshops in 1997, 2003, 2008 • Nan. Tro. Seize drilling started Sept 2007 • 2007 Seismogenic Zone Volume

SEIZE: Nankai • 11 NSFMARGINS Awards • 6 Major SEIZE Workshops

Nan. Tro. SEIZE • 2006: 3 D site survey • 2007 -8: Chikyu Phase 1 * Integrated thermal modeling; tremor & slip inversions G. Moore et al. , in press 3 D imaging: Splay faults & tsunamis

Sub. Fac/SEIZE: Central America • 41 NSFMARGINS Awards • Multiple Field Projects • Several integrated workshops

Initiatives: S 2 S Source-to-Sink What controls production, transport & storage of sediments & solutes from source to sink? (tectonics-climate-humans) What processes initiate erosion & sediment transfer, and what are critical feedbacks? Waipaoa Fly-Gulf of Papua How do sedimentary processes interact with tectonics, climate & human effects to build a stratigraphic record? • 1 st awards 2003 – 29 NSF-MARGINS Awards to date • Major Workshops: 2006, 2009 synthesis • Recent Special Issues • Complementary CSDMS modeling facility

S 2 S: New Zealand • 10 NSFMARGINS Awards • 7 S 2 S Workshops • Multiple Field Projects

S 2 S: Papua New Guinea • 18 NSFMARGINS Awards • Multiple Field Projects • 7 S 2 S Workshops

Initiatives: RCL Rupturing Continental Lithosphere What forces drive rift initiation, propagation and evolution? How does deformation vary in time & space, and why? How does crust evolve, Gulf of California/Salton Trough physically & chemically, as rifting proceeds to Allied: Red Sea; Focus Site pre-2006 spreading? • 30 NSF-MARGINS Awards • 6 Major workshops: 2000 -2009 • 2 thematic Monographs What is role of magmatism and fluids in continental extension?

RCL: Gulf of California • 22 NSFMARGINS Awards • Multiple Field Projects • 6 Major Workshops 2000 -2009

RCL: Red Sea • Ancillary site • 5 NSFMARGINS Awards before 2006

Special Volumes and Books Izu-Bonin-Mariana Subduction System (Kodaira, Pozgay & Ryan, eds. ) Special Theme G-Cubed, accepting contributions 2008 -2010 Central American Subduction System (Alvarado, Hoernle & Silver, eds. ) Special Theme G-Cubed, accepting contributions 2007 -2009 Papuan Continuum: S 2 S (Nittrouer, Slingerland, & Dickens, eds. ) Spec. Issue JGR-Earth Surface, March 2008 Waipaoa S 2 S (Kuehl & Carter, eds. ) Spec. Issue Marine Geology, Expected Publication early 2009 Arenal Volcano, Costa Rica, Special Issue (Gill, Reagan, Tepley & Malavassi, eds. ) J. Volcanol. Geotherm. Res. , 2006 2003 Anatahan Eruption Special Issue (Hilton, Pallister & Pua, eds. ) J. Volcanol. Geotherm. Res. , 2005 The Seismogenic Zone of Subduction Thrust Faults (Dixon & Moore, eds. ), Columbia Univ. Press Sept. 2007. Imaging …. Continental Lithosphere Extension and Breakup (Karner, Manatschal & Pinheiro, eds. ), Geol. Soc. SP 282, 2007. Rheology and Deformation of Lithosphere at Continental Margins (Karner, Taylor, Driscoll & Kohlstedt, eds. ), Columbia U. Press, 2004. Inside the Subduction Factory (Eiler, ed. ), AGU Monogr. 138, 2004.

Nature/Science papers: International Partnerships & MARGINS-funded work RCL PESCADOR Mexico U. K. SEIZE Nan. Tro. SEIZE Japan Sub. Fac TUCAN Germany Costa Rica Nicaragua Nature, in press, Dec. 2007 Geochemical and Geophysical Evidence for Arc-Parallel Flow in the Mantle Wedge Beneath Costa Rica and Nicaragua K. Hoernle 1, 2, D. L. Abt 3, K. M. Fischer 3, H. Nichols 1, F. Hauff 2, G. A. Abers 4, P. van den Bogaard 1, 2, K. Heydolph 1, G. Alvarado 5, J. M. Protti 6, W. Strauch 7

MARGINS Mini-Lessons http: //serc. carleton. edu/margins/collection. html • Ready-to-use undergraduate learning modules • > 30 Mini-Lessons spanning MARGINS science and highimpact results

Events in 2009 • Major Workshops – April, New Zealand: S 2 S Synthesis – April-May, Charleston SC: RCL Synthesis – September: Mt. Hood, OR: TEI on Volatiles in the Subduction Factory • Education Highlights – Mini-Lesson Testing & Assessment (help needed) – Distinguished Lecture Program Year 5 • Decadal Review – Committee met Feb. 2009

2009 Decadal Review • 102 one-page Research Nuggets from PIs • MSC, others wrote Review Documentation – Reviews of 4 Initiatives; management; broader impacts Future Program: – Build a successor program – Is a focused program needed, why not rely upon core funding? – How should program be structured?

MARGINS Successor Planning • Community-wide workshop Feb 2010 • Open to all • www. nsf-margins. org/Successor. Program • Draft Science Plan goes to NSF summer 2010.