Transcript EarthScope Program

An Earth science program to
explore the 4D structure of the
North American continent
Kaye Shedlock
EarthScope Program Director
EarthScope Program
• Community Driven
–
–
–
–
ESEC
existing advisory structures
meetings and workshops
Program Solicitation
• Peer review
• Research
– broad, integrated studies across the Earth sciences
• continental structure and evolution
• large-scale continental deformation
• plate boundary processes
• fault properties and the earthquake process
• strain transfer
• magmatic and hydrous fluids in the crust and mantle
• composition and structure of the deep Earth
EarthScope Program
Education and Related Activities
– Education and Outreach
• centralized forum for Earth science education at all levels
• EarthScope Education and Outreach Program
• Program Solicitation
– Cyberinfrastructure
• integrate, distribute, and analyze diverse data sets
• workshops/working groups
• Program Solicitation
• Facility
– multi-purpose array of instruments and observatories
• PBO, SAFOD, USArray
EarthScope Facility
• SAFOD 3.2 km borehole into the San
Andreas Fault
• 875 permanent GPS stations
• 175 borehole strainmeters
• 5 laser strainmeters
• 39 Permanent seismic stations
• 400 transportable seismic stations
occupying 2000 sites
• 30 magneto-telluric systems
• 100 campaign GPS stations
• 2400 campaign seismic stations
And there’s more………
A pool of 100 GPS receivers
and
2400 seismic stations
200 broadband
200 short-period
2000 single-channel active source
will also be available for PI-funded experiments.
EarthScope Facility
Current Status 8/13/2005
Program Solicitation
• 04-589 (revised)
• July 16, 2005 (annually)
– June/July for joint submissions with core science
programs
•
•
•
•
•
interdisciplinary, collaborative projects
workshops
“development” projects
CAREER
cyberinfrastructure
Revisions to NSF 04-589
• Updated program description
• $ 4.5 million for FY2006
• EarthScope/NEES Research Opportunities
– Research requiring coordinated use of both facilities
– NEESR 05-527; March 11, 2006 deadline; co-reviewed
• EarthScope Imagery and Geochronology
– Acquisition of aerial and satellite imagery and geochronology that
extend the time scales available from PBO geodetic instrumentation
– Indicate how imagery or geochronology will contribute to the
success of EarthScope
• Helpful hint: read and adhere to the Grant Proposal Guide,
04-23
Second Solicitation - FY05
• 107 proposals requesting a total
of $ 32,412,801
• 46% collaborative proposals
(27/58)
• 57 projects reviewed by panel
–
–
–
–
–
E&O - 2
PBO - 9
Integrated - 19
SAFOD - 10
USArray - 18
• 3 workshops proposed
• National meeting proposed
• 13 projects funded to date
–
–
–
–
–
E&O - 0
PBO - 3
Integrated - 3
SAFOD - 3
USArray - 4
• 54% collaborative proposals
(7/13) to date
• National meeting supported
• 2 workshops supported
• ~ $ 3.8 million awarded to date
Examples of Projects
• PBO
– PBO Nucleus
– Making Effective Use of GPS and Strainmeter Data: A PBO Pilot Project
• Interdisciplinary
– Imaging the Deep Roots of the San Andreas Fault
– Developing a Methodology for Imaging Imaging Stress Transients at
Seismogenic Depths
• SAFOD
– Targeting the Phase III SAFOD Drilling
– Fluid Transport Analysis - Rare Gas “Ages” of Matrix Porosity Fluids in Drill
Core
• USArray
– Lithospheric Foundering Beneath the Sierra Nevada
– Seismic Observations from the Random Wavefield: A New Tool for HighResolution Seismology in the Context of EarthScope
Scientific Questions
• 4D plate boundary behavior
• 4D continental evolution
– Spatial and temporal scales of deformation
– Lithospheric composition/strength profile
• Balanced, timely, “complete” characterization of the SAFOD volume,
including earthquake locations
• PBO design and full utilization
• Geotraverse versus smaller interdisciplinary efforts
• Development of integrated data analyses
• Identification/development of new science education tools/modules
and scientific products
• Imagery and geochronology
• Cyberinfrastructure
EarthScope Science
San Andreas Fault Observatory at Depth (SAFOD)
In August, 2005, EarthScope successfully drilled across the San Andreas Fault
from the Pacific to the North American Plate at a depth of about 2 miles,
in an area of active earthquake generation.
Data collection continues:
•retrieval of fault zone rock and fluids for laboratory analyses during drilling
•intensive downhole geophysical measurements in all phases
•post-drilling, instrumentation installed to record
•pore pressure, temperature, and strain during the earthquake cycle
•observations of earthquake nucleation and rupture
Fundamental scientific questions that SAFOD data and observations will address:
•how and why plate boundary faults lose their strength
•where plate boundaries form
•how plate boundaries evolve
•how deformation is partitioned along plate boundaries
San Andreas Fault
San Andreas Fault
Fault Contact at 10,063 ft
Highly Deformed Siltsone
Clay Gouge
2.5 cm
Granite Cobble
Conglomerate
Upcoming Meetings
• Geological Society of America Annual Meeting
Session T141: Geology and EarthScope
October 16, 2005; Salt Lake City, UT
• American Geophysical Union Fall Meeting
Session T02: The Elusive Subcontinental Mantle: Its History, Deformation, and
Anisotropy
December 5-9, 2005; San Francisco, CA
• American Geophysical Union Fall Meeting
Session T11: The San Andreas Fault Observatory at Depth (SAFOD)
December 5-9, 2005; San Francisco, CA
• American Geophysical Union Fall Meeting
Session T27: Hubbert and Rubey in the 21st Century: Constraints on Pore Pressure in
Fault Zones From Field, Laboratory, and Modeling Studies
December 5-9, 2005; San Francisco, CA
• American Geophysical Union Fall Meeting
Session ED02: Integrating Education and Outreach with Large-Scale Experiments
December 5-9, 2005; San Francisco, CA
EarthScope Data
• EarthScope Annual Data Volume
• Data volumes over next 10 years
– GPS: ~7.7 TB
– BSM/LSM: ~10.5 TB
– Seismic: ~120 TB
EarthScope
andOutreach
Outreach
EarthScopeEducation
Education and