Field Guides:

These field guides were prepared as a background material for field trips that I was involved in.

2005:

From "Field Guide to Exhumed Major Faults in Southern California", Editors S.B. Howard and J.R. Jacobs, FARM workshop, 2005 SCEC Annual Meeting:

San Andreas Fault - Fault Zone Structure NW of Lake Hughes

San Jacinto Fault - Fault Trace and Fault-Core Symmetry Properties

2006:

And in association with the Workshop on the Origin and Depth Extent of Pulverized Rock along Active Continental Faults in Southern California: Possible Insights to Be Gained from Shallow Boreholes, September 9-10, 2006 (preceding the 2006 SCEC Annual Meeting):

Pulverized Rocks Along the San Andreas Fault

Comments on Pulverized Rock Field Trip by Terry Tullis, Brown University:

 I was one of about 40 participants on a field trip on pulverized rocks led by Ory Dor on September 9, 2006. The field trip was part of a FARM (Fault and Rock Mechanics) workshop on pulverized rocks (Workshop on Origin and Depth Extent of Pulverized Rock along Active Continental Faults in Southern California) sponsored by the Southern California Earthquake Center (SCEC). We visited three sites along the San Andreas fault in the Mojave section of the fault where it was possible to see excellent examples of pulverized rocks, the origin of which is under investigation. Ory has studied many other sites and carefully chose these for the field trip as places that were easily assessable and offered the opportunity for a large group to see the salient features as a basis for discussion of their origin. Ory put a lot of thought into organizing and conducting the trip so it would be an efficient learning experience and I found it to be one of the best organized field trips I have been on in more than 40 years of participating in similar trips. Many things went into making it a success. He provided a well-done field guide. He made effective use of large-sized flip charts on the outcrop to show thin sections, hand samples and field photos from these and other relevant sites. He brought along samples of representative rocks with varying degrees of pulverization that we could examine that came from places we did not have time to visit. He encouraged us to examine these rocks and those in the outcrops carefully and to see to what extent they each would crumble in our hands. He did an excellent job of being sure that the main important points of each locality were discussed fully by the group as a whole, sometimes having to encourage more senior participants to delay their more detailed comments and discussions until the basics were understood by everyone. Although understanding the origin and significance of these interesting pulverized rocks is an ongoing problem, this field trip was an important process of developing that understanding for me as I am sure it was for all of the other participants.