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First arrivals are comparitively weak but pickable in sh. 3550-2650 range. (10-20 km) 3500-3550 is not pickable due to 1km drop off. Signal is present but first arrival is questionable Much of center part of record (on valley floor) exhibits weak arrivals mixed with 2nd arrival 0.5 seconds later. Possible LVZ. Absent arrivals at high end of record cross same portion of valley. Appearent shadow zone in co-Ax valley as well. |