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We investigate the potential advantages and pitfalls of using an irregular interface parametriza-tion in 3-D wide-angle seismic traveltime tomography. Several synthetic tests are performed using an interface surface consisting of a mosaic of cubic B-spline surface patches and a source–receiver array designed to produce a highly variable distribution of(More)
Hotspots are anomalous regions of volcanism at Earth's surface that show no obvious association with tectonic plate boundaries. Classic examples include the Hawaiian-Emperor chain and the Yellowstone-Snake River Plain province. The majority are believed to form as Earth's tectonic plates move over long-lived mantle plumes: buoyant upwellings that bring hot(More)
The eye is an important sense organ for teleost species but can vary greatly depending on the adaption to the habitat, environment during ontogeny and developmental stage of the fish. The eye and retinal morphology of eight commonly caught trawl bycatch species were described: Lepidotrigla mulhalli; Lophonectes gallus; Platycephalus bassensis; Sillago(More)
We present a practical grid-based method in 3-D spherical coordinates for computing multiple phases comprising any number of reflection and transmission branches in heterogeneous lay-ered media. The new scheme is based on a multistage approach which treats each layer that the wave front enters as a separate computational domain. A finite-difference eikonal(More)
The recent proliferation of passive seismic array experiments in southeast Australia has resulted in the dense coverage of Tasmania, Victoria and parts of South Australia and New South Wales by some 260 plus seismometers in less than a decade. In total, six separate temporary deployments have been carried out in order to build this large network of(More)
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