text-only page produced automatically by Usablenet Assistive Skip all navigation and go to page content Skip top navigation and go to directorate navigation Skip top navigation and go to page navigation
National Science Foundation
design element
Search Awards
Recent Awards
Presidential and Honorary Awards
About Awards
Grant Policy Manual
Grant General Conditions
Cooperative Agreement Conditions
Special Conditions
Federal Demonstration Partnership
Policy Office Website

Award Abstract #0926945

Collaborative Research: Geophysical Constraints on Mechanisms of Ocean Plateau Formation from Shatsky Rise, Northwest Pacific

Division Of Ocean Sciences
divider line
Initial Amendment Date: July 22, 2009
divider line
Latest Amendment Date: May 17, 2013
divider line
Award Number: 0926945
divider line
Award Instrument: Standard Grant
divider line
Program Manager: Bilal U. Haq
OCE Division Of Ocean Sciences
GEO Directorate For Geosciences
divider line
Start Date: August 1, 2009
divider line
End Date: July 31, 2013 (Estimated)
divider line
Awarded Amount to Date: $292,215.00
divider line
ARRA Amount: $292,215.00
divider line
Investigator(s): Piers Chapman pchapman@tamu.edu (Principal Investigator)
William Sager (Former Principal Investigator)
divider line
Sponsor: Texas A&M Research Foundation
400 Harvey Mitchell Parkway, S
College Station, TX 77845-4321 (979)845-8600
divider line
divider line
Program Reference Code(s): 0000, 1620, 9145, OTHR, 6890
divider line
Program Element Code(s): 1620


This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-2).

Deciphering the origins of the giant large igneous provinces is a critical element for understanding mantle dynamics and its relation to terrestrial magmatism. Among a dozen or so large oceanic plateaus in the oceans Shatsky Rise is an important target because of its unique tectonic setting. It is the only giant plateau formed at a time of frequent magnetic reversal anomalies that show its relationship to coeval spreading ridges. IODP Expedition 324 is currently also scheduled to sample the sediments and upper igneous layers at five sites on Shatsky Rise in late 2009, which could provide important ground-truthing. The PIs propose a collaborative geophysical project with two foci: (1) constraining the crustal structure by an OBS reflection and refraction experiment, and (2) delineating the tectonic history by MCS profiling and reanalysis of bathymetry and magnetic data. A new model of crustal seismic structure will constrain the nature of mantle melting on the basis of correlation between thickness and velocity. The detailed upper crustal structure revealed by MCS will help to reconstruct the tectonic history of Shatsky Rise, which appears to be a huge volcano formed at a triple junction and then split apart by seafloor spreading. The PIs will synthesize the results of these geophysical studies to build a comprehensive tectonic framework, including better estimations of eruption rate, its temporal variation, its relation to ridge kinematics, and the coeval evolution of the parental mantle.

International collaboration with the Japanese and Russian scientists and graduate and undergraduate students training and sea-going experience are some of the broader impacts of the study. Outreach to school students is also planned.


Note:  When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

Korenaga, J., and W. W. Sager. "Seismic tomography of Shatsky Rise by adaptive importance sampling," Journal of Geophysical Research, v.117, 2013. 

Sager, W. W., J. Zhang, J. Korenaga, T. Sano, A. A. P. Koppers, M. Widdowson, and J. J. Mahoney. "An Immense Shield Volcano within the Shatsky Rise Oceanic Plateau, northwest Pacific Ocan," Nature Geoscience, v.6, 2013, p. 976. 


Sager, W. W., T. Sano, and J. Korenaga. "The Shatsky Rise supervolcano", 08/01/2010-07/31/2011, "Goldschmidt Conference Abstracts",  2011, "2011 Goldschsmidt Conference".

Sager, W. W., T. Sano, and J. Korenaga. "The Shatsky Rise supervolcano", 08/01/2010-07/31/2011, "Japan Geophysical Union Meeting Abstracts",  2011, "Japan Geophysical Union, 27 May 2011".

Sager, W. W., T. Sano, and J. Korenaga. "The Shatsky Rise supervolcano", 08/01/2011-07/31/2012, "Goldschmidt Conference Abstracts",  2011, "2011 Goldschsmidt Conference".

Sager, W. W., T. Sano, and J. Korenaga. "The Shatsky Rise supervolcano", 08/01/2011-07/31/2012, "Japan Geophysical Union Meeting Abstracts",  2011, "Japan Geophysical Union, 27 May 2011".


Please report errors in award information by writing to: awardsearch@nsf.gov.



Print this page
Back to Top of page
Research.gov  |  USA.gov  |  National Science Board  |  Recovery Act  |  Budget and Performance  |  Annual Financial Report
Web Policies and Important Links  |  Privacy  |  FOIA  |  NO FEAR Act  |  Inspector General  |  Webmaster Contact  |  Site Map
National Science Foundation Logo
The National Science Foundation, 4201 Wilson Boulevard, Arlington, Virginia 22230, USA
Tel: (703) 292-5111, FIRS: (800) 877-8339 | TDD: (800) 281-8749
  Text Only Version