DEEP  CRUSTAL  PROCESSES

Convenors:
Alan Jones    (jones@cg.nrcan; (613) 992-4968)
Dave Fountain (fountain@uwyo.edu; (307) 766-6299)
Walter Mooney (mooney@andreas.wr.usgs.gov; (650) 329-4764)
Randy Parrish (rrp@wpo.nerc.ac.uk; +44-115-936-3427)


Sponsors:
International Lithosphere Program; 
GSA Geophysics Division; 
GAC Structural Geology and Tectonics Division; 
Geological Association of Canada, 
Canadian Geophysical Union;
International Association of Geomagnetism and Aeronomy; 
International Association of Seismology and Physics of the Earth's Interior; 
International Association of Volcanology and Chemistry of the Earth's Interior; 
American Geophysical Union. 

How is continental lower crust formed? How does it evolve? How does it interact
with its overlying upper crust and underlying mantle? These fundamental 
questions form the core of this session, which will bring together geologists, 
geochemists, and geophysicists to discuss deep crustal physical and chemical 
processes. 



Despite significant progress over the last decade, particularly in the 
acquisition of geological, geochemical and geophysical data, our understanding 
of the physical and chemical processes that operate deep within the crust of 
the Earth's continents is still fairly poor.  Part of the problem lies in the 
lack of synthesis of these disparate geoscientific data. This deficit can be 
addressed through synergism by having a focussing symposium, with presentations 
by acknowledged lead geologists, petrologists, geochemists and geophysicists, 
followed by a theme session and a panel discussion on the same topic. 

The keynote symposium will start with 3 overview presentations, by leaders in 
their fields, on geological, geochemical and geophysical aspects of 
the deep crust. Following that, topical reviews will be given. On the following
day, a Theme Session with the same title will allow poster and oral 
contributed presentations to be made. Finally, a two-hour panel-led discussion
session will end the day.


The DEEP CRUSTAL PROCESSES Keynote Symposium and Theme Session will consist 
of four parts:

Wednesday 28 October AM:   Keynote Symposium (K4): Invited Oral Presentations
Thursday  29 October AM:   Theme Session (T23): Contributed Poster Presentations
Thursday  29 October PM:   Theme Session (T23): Contributed Oral Presentations
Thursday  29 October PM:   Panel-led Discussion Session (T23)


You are invited to contribute presentations to the Theme Session T23.
Below is listed the working titles of the Keynote Symposium and confirmed
speakers.


DEEP CRUSTAL PROCESSES
Pardee Symposium K4
Wednesday 28 October am


Working Titles......

General Overview Talks (25 + 5 mins)
------------------------------------
Insights into deep crustal processes from a  geological perspective	
WIKI ROYDEN (wiki@goodwin.mit.edu; (617) 253-1292)

Insights into deep crustal processes from a geochemical perspective	
ROBERTA RUDNICK (rudnick@eps.harvard.edu; (617) 495-2829)

Insights into deep crustal processes from a geophysical perspective	
ROY HYNDMAN (hyndman@pgc.nrcan.gc.ca; (250) 363-6428)


Topical Reviews (17 + 3 mins)
-----------------------------
Fluids in the deep crust
JOHN WALTHER (walther@mail.smu.edu; (214) 768-3174)

Crustal recycling
BOB KAY	(rwk6@cornell.edu; (607) 255-3461)

Deep crustal processes: Lessons from Tibet
DOUG NELSON (kdnelson@mailbox.syr.edu; (315) 443-3626)

Insights from laboratory studies on deep crustal processes
NIK CHRISTENSEN (chris@geology.wisc.edu; (608) 265-4469)

Crustal underplating processes
JIM QUICK (jquick@usgs.gov; (703) 648-6900)

Continental margin processes
STEVE HOLBROOK (steveh@uwyo.edu; (307) 766-2427)

Geodynamic modelling: insights into deep crustal processes
SEAN WILLETT (sean@geosc.psu.edu; (814) 865-3951)

Crust-mantle interactions
HUGH ROLLINSON			NOT CONFIRMED		***sent email 17/6/98