The 1998 Fall meeting of the American Geophysical Union featured reports, on the drilling by the Sandia engineering staff and on on-site science and, preliminary findings by the science staff and some PI's. A planning, meeting was also held to discuss future work at the site, which involves, primarily converting it to a volcano hazards observatory. Future plans, include, and a preliminary lithologic log (January 31, 1999); A workshop on borehole, monitoring instrumentation (February, 1999); A science workshop in Mammoth, Lakes, CA,(June,1999) to present and share preliminary results, and to plan, a special session for the Fall1999 AGU meeting. A core-request protocol, will be established following publication of the Lithology/core-image CD.
Having finished coring, we begin the final downhole science phase. Scheduled are variable rate injection tests with concurrent temperature-pressure-spinner logs, and a Borehole televiewer log of the entire open hole section.
Disaster was narrowly averted today. We got the drillstring stuck at 9707' at 0400. Later in the day, a coupling parted at 8200'. We were able to recover the ""fish"" later and prepare for further coring.
The Long Valley drillsite was the focus of a field trip today for the Physical Geology class from Cerro Coso Community College, Mammoth Lakes, California
We seem destined to finish up in the same unit (Mount Morrison Roof Pendant) in which we started. The cores do, however, offer tantalizing glimpses into the processes that have occurred since the intrusion of the Sierra Nevada batholith.
The science crew got some more sleep, owing to a round trip to change bits. Coring with bit # 16 has been slow because diamonds and matrix from bit # 15 were left in the hole.
