Meanwhile, back in the OFFICE...

  WorldView  imagery provided by the Nat. Geospatial-Intelligence Agency to PGC

But what goes on back at the office, while the field team is at work on the actual ROCKS that record crustal differentiation upon the ancient Gondwana margin??  (They are at Bird Bluff, pictured to left.)















1/ Working to finish up a new paper about use of hafnium and oxygen isotopes from zircon, for a new view of sources for granite magmas and for information about geochemical processes in effect in the Fosdick migmatite-granite complex...  Chris Yakymchuk is first author on the work!

2/ Figures, tables and final revisions lead to a lot of email between authors. This is a screen shot of just five of 55 emails that came in between 6 and 10:30 on Sunday evening.

DEM of flank of Mt Siple, computed by Elle Emery.

3/  Beating our heads against the procedures for computation of digital elevation models from stereo imagery.  Here is a pretty good and awfully terrible result from a ~8x15 km region!  The scenes with rock + ice coverage and topo relief give us headaches. The tetrahetralated regions are not good.  A lot of "handwork" needed to interpolate and smooth through those regions so as to better represent the landform.  So-- rock exposures are tough and glacial surfaces are oh, so much better... unless you are a geologist and you want the rock DEMs to be perfect!