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Manganese nodules from the Tasman Sea off Sydney
Two manganese nodules were recently recovered by HMAS Kimbla from a water depth of 4300 m, in a northeast-trending trough about 250 nautical miles southeast of Sydney (155°... -
Geological history of the outer North West Shelf of Australia: a synthesis
This paper uses information contained in other papers in this issue of the AGSO Journal together with the scientific literature to produce a synthesis of the geological... -
Gradational benthic marine communities in the Early Carboniferous...
Four benthic marine fossil commumtles are recognised in faunas of the Rhipidomella fortimuscula brachiopod Zone of late Visean (Early Carboniferous) age using multivariate... -
Growth fabrics and growth rates of Holocene reefs in the Great Barrier Reef
Over the past five years, scientists of the Bureau of Mineral Resources and James Cook University of North Queensland have drilled 61 holes into 24 reefs throughout the Great... -
Western Australia: Phanerozoic geology and mineral resources
Phanerozoic rocks in onshore Western Australia are primarily sedimentary. Volcanic and intrusive rocks are known from only a few areas and are mostly related to continental... -
The Ivanhoe Block-its structure, hydrogeology and effect on groundwaters of...
The Ivanhoe Block is a faulted and uplifted concealed basement ridge complex underlying the mallee sand dunes adjacent to the New South Wales part of the Western Riverine Plain... -
Palynostratigraphy of the central west Murray Basin
Palynological analyses have been undertaken on four fully cored boreholes in the central west Murray Basin (Woodlands-1, Manilla-I, Piangil West-2 and Hatfield-1 holes) to... -
A reconnaissance investigation of the major Palaeozoic aquifers in the...
The Canning Basin is a large sedimentary basin with an onshore area of 430 000 km2. It has a thick, discontinuous succession of Palaeozoic and Mesozoic marine and continental... -
Source rock potential and hydrocarbon prospectivity of the Darling Basin, NSW
Available geological and geophysical data for the dominantly Devonian Darling Basin of western New South Wales indicate a high risk for petroleum exploration. Hydrocarbon... -
Structure and stratigraphy of the central Great Barrier Reef
The Cainozoic evolution of the central Great Barrier Reef Province has been deduced from shallow, intermediate, and deep focus seismic reflection profiling. For much of its... -
Sedimentary cycles in the Surat Basin and global changes of sea level
Six sedimentary cycles, each hundreds of metres thick, have been recognised in the Surat Basin. The Jurassic cycles (nos. 1-4) typically started with high-energy deposition of... -
The Cretaceous of the Eromanga and Surat Basins
Little deformed Cretaceous sedimentary rocks underlie 1 500 000 km^2 of eastern Australia. Depositional environments in them range from freshwater to shallow marine. The... -
Mesozoic sedimentary and volcaniclastic rocks dredged from the northern...
An extensive program of dredging was undertaken by AGSO in 1990 on the northern Exmouth Plateau and Rowley Terrace margin, mainly to provide geological control for seismic... -
Contrasting marginal sediments of a seasonally flooded saline lake - Lake...
Lake Eliza is a hypersaline coastal lake in southeast South Australia, a region of winter rainfall and summer drought. It is fed by ground waters and has no connection with the... -
Evidence of an exhalative origin for deposits of the Cobar district, New South Wales
Evidence is presented to show that a strong mineralogical/chemical zoning exists in seven deposits of the Cobar-Nymagee area. Characteristically, the within-deposit zoning,... -
Application of entropy-ratio maps to surficial reef facies, Great Barrier Reef
Entropy-ratio maps enable mapping of surficial facies of coral reefs at any chosen resolution. A ternary classification uses detritus, framework encrustation, and pavement as... -
Pattern of slow seafloor spreading (<4 mm/year) from breakup (96 Ma) to A20...
Australia separated from Antarctica by continental extension between the mid-Jurassic (>160 Ma) and mid-Cretaceous (96 Ma), then by slow seafloor spreading (half-rate <... -
Epeiric carbonate sedimentation of the Ninmaroo Formation (Upper...
The Ninmaroo Formation (Upper Cambrian-Lower Ordovician) is one of several epeiric carbonate sequences in the Georgina Basin. It comprises ooid, peloid, flat-pebble... -
Hydrochemistry of a groundwater-seawater mixing zone, Nauru Island, central...
Nauru Island is a karstified dolomitic limestone island in the central Pacific Ocean. A thin, discontinuous freshwater layer overlies a thick brackish water mixing zone. In the... -
The determination of suspended-sediment loads in the southern Great Barrier...
A mechanical system for collecting samples of suspended sediment in the water column at various stages of a tidal cycle, together with measurement of tidal current velocities,...