# Title Location IODP Theme Date
645 North Atlantic Gateway N Atlantic Environmental change, processes and effects 29/09/2005
638 Adelie Drift (drilled) Southern Ocean Environmental change, processes and effects 28/09/2005
845 Agulhas LGM Density Indian Ocean Climate and Ocean Change 01/10/2013
533 Arctic Coring (drilled) Central Arctic Ocean Environmental change, processes and effects 28/03/2002
756 Arctic Ocean Exit Gateway Arctic Ocean Environmental change, processes and effects 01/10/2009
605 Asian Monsoon (scheduled) E China Sea, Japan Sea Environmental change, processes and effects 01/04/2005
758 Atlantis Massif: Seafloor Processes Atlantic Ocean-North Solid earth cycles and geodynamics 01/10/2009
672 Baltic Sea Basin Paleoenvironment (drilled) Baltic Sea Environmental change, processes and effects 01/04/2009
753 Beaufort Sea Paleoceanography Beaufort Sea Environmental change, processes and effects 01/10/2009
552 Bengal Fan (scheduled) Indian Ocean-Bay of Bengal Climate and Ocean Change 01/10/2003
680 Bering Strait Climate Change N Pacific Environmental change, processes and effects 30/09/2009
600 Canterbury Basin (drilled) S Pacific Environmental change, processes and effects 30/11/-0001
553 Cascadia Margin Hydrates (drilled) NE Pacific Deep biosphere and subseafloor ocean 01/04/2003
708 Central Arctic Paleoceanography Arctic Ocean-Central Environmental change, processes and effects 28/09/2006
548 Chicxulub K-T Impact Crater Gulf of Mexico Environmental change, processes and effects 24/09/2003
543 CORK installation in Hole 642E (drilled) Norwegian-Greenland Sea Environmental change, processes and effects 30/11/-0001
769 Costa Rica Crustal Architecture Pacific Ocean-East Solid earth cycles and geodynamics 01/10/2010
633 Costa Rica Mud Mounds E Pacific Deep biosphere and subseafloor ocean 01/10/2005
555 Cretan Margin (withdrawn) Mediterranean Sea Deep biosphere and subseafloor ocean 30/09/2003
537A CRISP A (drilled) E Pacific Solid earth cycles and geodynamics 18/01/2007
537 CRISP A-Add (drilled) E Pacific Solid earth cycles and geodynamics 18/01/2007
537B CRISP B E Pacific Solid earth cycles and geodynamics 27/01/2006
793 Deep Sea Drilling in the Arabian Sea Arabian sea Ocean and Climate Change 01/10/2012
618 East Asia Margin S China Sea Environmental change, processes and effects 10/09/2004
759 EPR Fast-Spread Crust (withdrawn) Pacific Ocean-East Solid earth cycles and geodynamics 01/10/2009
766 Essaouira Seamount Hotspot (withdrawn) Atlantic Ocean-East Solid earth cycles and geodynamics 23/03/2010
692 Flemish Cap Rifted Margin NW Atlantic Solid earth cycles and geodynamics 01/10/2007
640 Godzilla Mullion NW Pacific Solid earth cycles and geodynamics 01/04/2008
701 Great Australian Bight Deep Biosphere (withdrawn) Pacific Ocean-South Deep biosphere and subseafloor ocean 31/03/2006
762 Grizzly Bare Outcrop Hydrogeology (drilled) Pacific Ocean-North East Deep biosphere and subseafloor ocean 01/10/2009
724 Gulf of Aden Faunal Evolution Gulf of Aden Environmental change, processes and effects 01/04/2007
710 Gulf of Corinth Rift (withdrawn) Mediterranean Sea Solid earth cycles and geodynamics 29/09/2006
589 Gulf of Mexico Overpressures (drilled) Gulf of Mexico Deep biosphere and subseafloor ocean 22/10/2004
716 Hawaiian Drowned Coral Reefs Pacific Ocean-Central Environmental change, processes and effects 01/04/2008
551 Hess Deep Plutonic Crust (drilled) E Pacific Solid earth cycles and geodynamics 14/09/2002
635 Hydrate Ridge Observatory E Pacific Deep biosphere and subseafloor ocean 31/03/2008
763 Iberian Margin Paleoclimate (drilled) Atlantic Ocean-North East Environmental change, processes and effects 01/10/2009
771 Iberian Margin Paleoclimate 2 Atlantic Ocean-North East Environmental change, processes and effects 01/04/2010
795 Indian Monsoon Rainfall Bay of Bengal Climate and Ocean Change 11/10/2007
849 Indian Peninsula Paleoclimate Arabian Sea Climate and Ocean Change 01/10/2013
595 Indus Fan and Murray Ridge Arabian Sea Environmental change, processes and effects 28/12/2004
636 IODP Drilling of the Louisville Seamount Trail (drilled) S Pacific Solid earth cycles and geodynamics 01/10/2007
696 Izu-Bonin-Mariana (IBM) Deep Forearc Crust (scheduled) Pacific Ocean-West Solid earth cycles and geodynamics 01/04/2012
695 Izu-Bonin-Mariana (IBM) Pre-Arc Crust (scheduled) Pacific Ocean-West Solid earth cycles and geodynamics 01/04/2008
697 Izu-Bonin-Mariana (IBM) Reararc Crust (scheduled) Pacific Ocean-West Solid earth cycles and geodynamics 01/04/2008
787 J-FAST (drilled) W Pacific Solid earth cycles and geodynamics 01/08/2011
545 Juan de Fuca Hydrogeology (drilled) NE Pacific Deep biosphere and subseafloor ocean 01/04/2003
581 Latest Pleistocene Coralgal Banks Gulf of Mexico Environmental change, processes and effects 30/11/-0001
681 Lesser Antilles Volcanic Landslides (drilled) Carribean, NW Atlantic Solid earth cycles and geodynamics 01/10/2008
662 Life beneath the seafloor of the South Pacific Gyre (drilled) S Pacific Deep biosphere and subseafloor ocean 01/04/2007
820 Maldives monsoon Indian Ocean Climate and Ocean Change 01/10/2013
505 Mariana Convergent Margin W Pacific Deep biosphere and subseafloor ocean 01/10/2003
715 Mediterranean Landslides (withdrawn) Mediterranean Sea Deep biosphere and subseafloor ocean 01/04/2007
644 Mediterranean Outflow - GUCADRILL (drilled) NE Atlantic Environmental change, processes and effects 01/10/2006
739 Microbiology in Bering Sea (drilled) Bering Sea Deep biosphere and subseafloor ocean 01/10/2008
677 Mid-Atlantic Ridge Microbiology (drilled) N Atlantic Deep biosphere and subseafloor ocean 01/04/2005
603 NanTroSEIZE - CDP (drilled) W Pacific Solid earth cycles and geodynamics 01/10/2003
725 NE Atlantic Volcanic Rifted Margin (withdrawn) Atlantic Ocean-North Solid earth cycles and geodynamics 01/04/2007
637 New England Margin Hydrogeology NW Atlantic Deep biosphere and subseafloor ocean 01/04/2005
564 New Jersey Shallow Shelf (drilled) NW Atlantic Environmental change, processes and effects 27/01/2006
659 Newfoundland Rifted Margin NE Atlantic Solid earth cycles and geodynamics 01/10/2004
661 Newfoundland Sediment Drifts (drilled) NW Atlantic Environmental change, processes and effects 30/09/2005
572 North Atlantic Climate (drilled) Atlantic Ocean-North Environmental change, processes and effects 31/03/2002
658 North Atlantic Volcanisms and Paleoclimate N Atlantic Environmental change, processes and effect 30/09/2005
549 Northern Arabian Sea Monsoon N Indian Ocean Environmental change, processes and effects 01/04/2005
754 Norwegian Sea Silica Diagenesis Norwegian Sea Solid earth cycles and geodynamics 01/10/2009
667 NW Australian Shelf Eustasy SW acific Environmental change, processes and effects 11/03/2005
615 NW Pacific Coral Reefs (withdrawn) NW Pacific Environmental change, processes and effects 01/10/2008
512 Oceanic Core Complex (drilled) N Atlantic Solid earth cycles and geodynamics 01/04/2003
477 Okhotsk and Bering Seas (drilled) Bering Sea Environmental change, processes and effects 01/10/2003
601 Okinawa Trough Deep Biosphere Drilling (drilled) E China Sea Deep biosphere and subseafloor ocean 30/03/2007
626 Pacific Equatorial Age Transect (drilled) Equatorial E Pacific Environmental change, processes and effects 01/04/2004
625 Pleistocene Pacific Southern Ocean S Pacific, Southern Ocean Environmental change, processes and effects 01/10/2008
573 Porcupine Basin Carbonate Mounds (drilled) N Atlantic Environmental change, processes and effects 30/11/-0001
807 Reefs Oceans and Climate Northwest Australia Northwest Australia Climate and Ocean Change 01/10/2012
734 Revitalizing Hole 889C- Cascadia accretionary prism (drilled) Offshore Vancouver Island, Pacific Ocean Solid earth cycles and geodynamics 20/09/2008
686 S Alaska Continental Margin 1: Climate - Tectonics (drilled) NE Pacific Environmental change, processes and effects 01/04/2007
702 SAFARI Indian Ocean Climate and Ocean Change 01/10/2012
654 Shatsky Rise (drilled) NW Pacific Solid earth cycles and geodynamics 01/04/2005
745 Shimokita Coal Bed Biosphere (drilled) Pacific Ocean-North West Deep biosphere and subseafloor ocean 30/03/2010
800 SloMo Indian Ocean Earth Connections 01/04/2012
761 South Atlantic Bight Hydrogeology Atlantic Ocean-North West Environmental change, processes and effects 01/10/2009
735 South China Sea Tectonic Evolution (current) S China Sea 01/10/2009
567 South Pacific Paleogene S Pacific Environmental change, processes and effects 30/03/2007
519 South Pacific Sea Level (drilled) S Pacific Ocean Environmental change, processes and effects 30/11/-0001
522 Superfast Spreading Crust (drilled) E Pacific Solid earth cycles and geodynamics 01/10/2006
764 TAG II Hydrothermal System (withdrawn) Atlantic Ocean Deep biosphere and subseafloor ocean 29/09/2009
669 Walvis Ridge Hotspot S Atlantic Solid earth cycles and geodynamics 01/10/2007
482 Wilkes Land Margin (drilled) Southern Ocean Environmental change, processes and effects 01/10/2002
Izu-Bonin-Mariana (IBM) Deep Forearc Crust (scheduled)
IODP Proposals data
#
696
Label
Full
Short title
Izu-Bonin-Mariana (IBM) Deep Forearc Crust (scheduled)
Extend title
Testing subduction inititation and ophiloite models by drilling the Bonin forearc
Topic
Solid earth cycles and geodynamics
Scientific objectives
We propose to drill a section through the volcanic stratigraphy of the outer forearc of the IBM system in order to trace the processes of magmatism, tectonics and crustal accretion associated with subduction initiation. This in turn has implications for understanding the origin of the many ophiolites that are now believed to form in this setting and so is a good opportunity to test this supra-subduction zone ophiolite model and involve the land-based geological community in IODP.
We propose two sites in the Bonin forearc (BON-1 and BON- 2) which form an offset-drilling pair that together should penetrate the full c. 1.25 ± 0.25km lava section. The sites have been surveyed and surface-sampled by several diving and dredging cruises. Studies of the recovered samples have established a stratigraphy in which peridotites, gabbros and sheeted dykes are overlain by 'Forearc Basalts' (FAB) and then in turn by boninites. DSDP Site 459 in the Mariana Forearc provides a well-surveyed alternate site of similar age, stratigraphy and setting that will penetrate a similar lava sequence. Drilling BON-1 and BON-2 will contribute to our understanding of intra-oceanic convergent plate margins by providing
1) a high-fidelity record of magmatic evolution during subduction initiation;
2) a test of the hypothesis that “Fore-arc Basalts” (FAB) tholeiites lie beneath boninites;
3) a record of the chemical gradients within these units and across their transitions;
4) information on how mantle melting processes evolve during subduction initiation from early decompression melting of fertile asthenosphere to late flux melting of depleted mantle, providing key empirical constraints for realistic subduction initiation geodynamic models; and
5) a test of the hypothesis that forearc lithosphere created during subduction initiation is the
birthplace of supra-subduction zone ophiolites.
Location
Pacific Ocean-West
Date of submission
01/04/2012

IODP Expeditions
#
Title
Platform
From
To
352
riserless
30/07/2014
29/09/2014

ECORD Proponents
Firstname
Lastname
Role
Country
Rolf Birger
co
Norway
Julian
lead
United Kingdom