Geological Survey of Victoria and Geological Survey of New South Wales: Southeast Lachlan Crustal Seismic Transect

摘要

The Geological Survey of Victoria (GSV) and the Geological Survey of New South Wales (GSNSW) have collaborated with Geoscience Australia (GA) and AuScope Limited to successfully complete a 629 km long transect of deep seismic reflection surveying across the Australian Alps between Benalla, in the east of central Victoria and Eden on the coast of southern NSW. Terrex Seismic’s threetruck convoy of AHV-IV Vibrator trucks (Figure 1), along with support vehicles, and a crew of 40 people, acquired approximately 11 line km per day to complete the acquisition phase of the project within 60 days. Using the 62 000-pound peak-force vibrators at 40 m spaced vibe points and manually deployed and retrieved cable-less single-sensor nodes at 10 m spacing, the survey is expected to map to a depth of 40 km.