If the measurement need not be continuous, optical methods may be cheaper and easier. A couple of concrete piers and an inexpensive laser could be used with great effect I would think. Strain meters need to be fixed rigidly at both ends do they not? A problem in loose soils. Jim ODonnell wrote: > > Sean Thomas et al,.. > > A student at UNLV would like to measure movement across some fissures in > Las Vegas. The fissures are cracks in the soil (deep alluvium) about 10m > long in an area of mapped faulting. I was wondering if strain meters > would do the trick, the cheaper the better,and can you recommend or > suggest any methods or devices that would work? > > Jim O'Donnell > Registered Geologist No. 1240, State of California, 1970 > Registered Geophysicist No. 158, State of California, 1974 > 702 293-5664 > jimo17@........ > __________________________________________________________ > > Public Seismic Network Mailing List (PSN-L) > > To leave this list email PSN-L-REQUEST@.............. with > the body of the message (first line only): unsubscribe > See http://www.seismicnet.com/maillist.html for more information. __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>