Journal and Proceedings of
The Royal Society of New South Wales
Volume 121 Parts 1 and 2 [Issued October, 1988]
CONTENTS
| AUTHORS & TITLES | PAGES |
| Martin, H.A., Stratigraphic Palynology of the Lake Menindee Region, Northwest Murray Basin, New South Wales | 1-9 |
| Albani, A.D., Tayton, J.W., Rickwood, P.C., Gordon, A.D. and Hoffman, J.G., Cainozoic Morphology of the Inner Continental Shelf near Sydney, NSW | 11-28 |
| Brophy, J.J., Lassak, E.V. and Boland, D.J., Volatile Leaf Oils of Six Northern Australian Broad-Leafed Melaleucas | 29-33 |
| Stubbs-Race, M.A., Lasers in Surgery and Medicine [Presidential Address, 1987] |
35-37 |
| Theses Abstracts [Opening in a new page] |
|
| Bonin, A.M., Studies in the Bioactivation of Chemical Carcinogens: Role of in vitro Cell Mutagenesis | 39-40 |
| Chan, Hak-Kim, Crystal Growth and Aerodynamics of Drug Particles | 41 |
| Chrisp, Jeremy Stormer, Kinetic Aspects of Calcium Metabolism in Forage Fed Sheep | 43 | Murphy, A.B., Observations of Alfvén Waves in a Tokamak Plasma | 45 |
pp.1-9
Stratigraphic Palynology of the Lake Menindee Region, Northwest Murray Basin, New South Wales
Helene, A. Martin
Abstract. A number of shallow bores in the marginal marine region of the northwest part of the Murray Basin have yielded pollen and dinoflagellates in the lower dark grey-black clays. The upper red-brown-yellow sediments, showing signs of weathering, are barren.
The bores of this area correlate best with the late Oligocene – early Miocene sequence in the Oakvale bore (Truswell et al., 1985) which is also in the northwest part of the basin. The assemblages may be placed in the upper part of the P. tuberculatus Zone (Stover and Partridge, 1973) and conclusive evidence for the latest early to mid Miocene T. bellus Zone has not yet been found.
Dinoflagellates found in may of the bores are reported here.
The spore-pollen palynology of this northwest part shows some differences when compared with the eastern margin of the basin. These differences are consistent with the hypothesis of a climatic gradient parallel to that of today, i.e. drier to the northwest, controlling geographic variation in the vegetation of the time.
pp.11-28
Cainozoic Morphology of the Inner Continental Shelf near Sydney, NSW
A.D. Albani, J.W. Tayton, P.C. Rickwood, A.D. Gordon and J.G. Hoffman
Abstract. The bedrock morphology of the inner continental shelf near Sydney has been recognised from detailed shallow seismic and side scan sonar surveys. It has been possible to ascertain the nature and seaward extent of the pre-existing fluvial drainage patterns which have been concealed by the rise of sea level that resulted in the present day coastline. Most of the major channels cannot be traced below ~120 m but the Hawkesbury river channel persists to ~200 m, indicating a pre-Pleistocene erosional phase. The morphology of unusual sand bodies is described and, in addition, an analysis of the economic potential of this area for building and beach nourishment sands has been made from the distribution of the unconsolidated sediment cover.
The results are presented as a series of maps showing the Pleistocene drainages and bedrock contours.
pp.29-33
Volatile Leaf Oils of Six Northern Australian Broad-Leafed Melaleucas
Joseph J. Brophy, Erich V. Lassak, Douglas, J. Boland
Abstract. The volatile leaf oils of six northern Australian broad-leafed Melaleuca species, viz, M. arcana, M. lasiandra, M stenostachya, M. cajuputi subsp. "platyphylla" (Cape York), M. cajuputi subsp. "cajuputi" (Northern Territory), M. dealbata, and M. nervosa, were analysed by gas chromatogography and gc/ms. The species can be divided roughly into two groups on the basis of their oil composition. The oils of the first four taxa consist mainly of monterpenoids while those of the latter three consist mainly of sesquiterpenoids.
pp.35-37
Lasers in Surgery and Medicine
M.A. Stubbs-Race
[Presidential Address, 1987]
Introductory paragraphs. From time to time we learn (usually) from the Press that a certain hospital or clinic has just purchased a Nuclear Magnetic Resonance facility; a Laser; a Lithotripter or perhaps a Computerised Tomographic Scanner. Frequently these machines become news because they are the result of a collection for charity or a gift from a benefactor. Even governments buy them at times!
Everyone endorses the idea of installing such and such a machine, but frequently we seldom understand exactly what today's highly sophisticated instruments actually do or how they are used to cure a patient. In this talk I shall be describing a small selection of lasers, the way in which they are used and how they contribute to the cure or relief of sick patients. This is not a study of the design or development of lasers, but rather a layman's view of how and why lasers have entered into medical use.