Composition of Cape Leeuwin Manganese nodule deposit off Western Australia

In 1970 a large deposit of ferromanganese nodules was discovered on the floor of the Indian Ocean southwest of Cape Leeuwin by the research vessel USNS Eltanin. This discovery, which was based largely on bottom photographs from about 20 stations, was discussed by Frakes (1975) and Kennett and Watkins (1975, 1976). The photographs suggest that the deposit spreads, nearly continuously, over 900 000km^2, and cores showed that the nodules are essentially confined to the sediment surface. Kennett and Watkins (op. cit.) pointed to the abundance of ripple and scour marks and current-formed lineations on the present surface, and of extensive disconformities in the cores, as evidence of strong present and past bottom currents in the region. They suggested that the current action had resulted in very low sedimentation rates, which had allowed the nodule field, named by them (1976) the 'Southeast Indian Ocean Manganese Pavement', to develop. In early 1976 the authors used the research vessel HMAS Diamantina for a 10-day cruise in the region to sample the nodules in order to study their chemistry and mineralogy. During the cruise 9 stations were occupied, 8 of them successfully (Figure 1), and about 2000 nodules were recovered from the sea bed. The apparatus used was a light box dredge on the ships hydrowire, which had a breaking strain of about one tonne. Although an attempt was made to reoccupy Eltanin photographic stations, it should be noted that positioning was by celestial navigation, so errors of up to 10 km are possible.

Long term relative survival after surgery for abdominal aortic aneurysm in Western Australia: population based study

Objective: To determine the long term relative survival of all patients who had surgery for abdominal aortic aneurysm in Western Australia during 1985-94.

Adventures in Australia : the wanderings of Captain Spencer in the bush and the wilds, containing accurate descriptions of the habits of the natives and the natural productions and features of the country /

Mode of access: Internet.

Australia twice traversed : the romance of exploration : being a narrative compiled from the journals of five exploring expeditions into and through central South Australia, and Western Australia from 1872 to 1876 /

Mode of access: Internet.

(The)' physical characteristics of the hardwood of Western Australia.

Mode of access: Internet.

Journal of the Royal Society of Western Australia.

Mode of access: Internet.

Statistical register of Western Australia for ... and previous years.

Imprint varies.

Bulletin - Geological Survey of Western Australia.

Maps and atlases are found with the issue numbers.

Results of meteorological observations made in Western Australia during 1908.

Continues Western Australia. Government astronomer. Meteorological observations at Perth observatory and other places.