Kenn Plateau Marine Geology Survey: Seismic, Bathymetry, and Dredge Data from 2004
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Description
About 140,000 square kilometers of thinned continental crust were surveyed during the 2004 Southern Surveyor cruise. The dataset includes 3090 km of multichannel seismic data, continuous multibeam-sonar swath-bathymetry, magnetic data, and twelve dredge hauls of sedimentary rocks. Results from Geoscience Australia detail the plateau's complex structure, rift history, and three major sedimentary sequences.
Use Cases
Modeling crustal thinning and subsidence rates based on described rift basin structures and an average subsidence of ~50 m/m.yr.
Analyzing the tectonic evolution of the plateau using seismic data that reveals ENE-trending rift basins and fault displacements.
Studying paleoenvironments and sedimentation using dated Eocene and younger sedimentary rocks recovered from dredge hauls.
Mapping seafloor morphology and volcanic features from multibeam bathymetry covering basement ridges, troughs, and Oligocene volcanoes.
Strengths
Includes 3090 km of multichannel seismic reflection data, providing subsurface structural detail.
Multibeam-sonar swath-bathymetry was recorded continuously, offering full spatial coverage of the survey area.
Twelve dredge hauls provide physical rock samples, with many dated micropaleontologically to Eocene and younger periods.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment for quantitative analysis.
Data is delivered in PDF and HTML formats, which may require extraction and conversion for computational use.
Provenance
Source
Geoscience Australia Data
Collection Method
Marine geoscience survey conducted by R.V. Southern Surveyor (Cruise SS5/2004, GA Cruise 270) using multibeam sonar, seismic reflection, magnetic instruments, and rock dredging.
Time Range
Survey conducted in 2004; geological data covers Late Cretaceous to Recent periods.
Freshness
Last updated 2026-04-30 12:49:07.622074; freshness should be verified.
Geography
Kenn Plateau, off northeast Australia, in the Coral Sea region.
Primary data files are in PDF and HTML formats, which are not immediately machine-readable for analysis.