Monday, March 30, 2009
Sunday, March 29, 2009
Well, the LiDAR has shown us that a digitally rendered landscape offers, in some ways, more insights into the geology than a picture, a hike, or a stereo model. Of course, the field observations are the most fun and provide the true context that allow us to gain those epiphanic insights. But...have we ever done any real field work? After going through some old photos I started to wonder if the whole thing has been a synthesized digital construct fed into my brain from some inscrutable computer network. I believe these are KC's photos.
Posted by Dr. Jerque at 2:18 PM
Wednesday, March 25, 2009
Thursday, March 12, 2009
Here is a first stab at a simple, annotated profile from the LiDAR data. It is a very slightly smoothed curve. I used a 50 point weighted average to get the smoothest profile that clearly mimicked the more data-rich version.
Have not yet gotten to extracting the lava flow profiles, but have added their longitudinal extents. Also added the main landslide complexes and some key sites to enable yeehow orientation. Overall the profile is pretty good. The only aberrant points show up where I tried to 'drive around' some of the no-data points and ended up treading on a terrace, so to speak. Next example will be the longitudinal changes in local gradient.
Posted by Dr. Jerque at 3:59 PM
Friday, March 6, 2009
Here are some images that show that status of the olivine mineral separation efforts. This sample contains the most olivine so far. It is one of two samples from the upstream end of T4 in The Hole in the Ground. Can someone tell me if two samples were collected from the same rock?
Anyway the point of this post is to show Cassie the status of our efforts to separate and clean the olivine crystals. On several crystals you can see some adhering matrix crud. We know we need to get that off. As for the black specks...?
Posted by Dr. Jerque at 10:20 AM
Thursday, March 5, 2009
Posted by Dr. Jerque at 2:25 PM