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Faculty of Science, Medicine and Health - Papers: part A

2003

U

Articles 1 - 3 of 3

Full-Text Articles in Medicine and Health Sciences

Catena-Poly[[(Pyridine-Kn)Copper(Ii)]U-N-Salicylideneglycinato-K40,N,0':0'], Ray J. Butcher, Garry Mockler, Owen Mckern Jan 2003

Catena-Poly[[(Pyridine-Kn)Copper(Ii)]U-N-Salicylideneglycinato-K40,N,0':0'], Ray J. Butcher, Garry Mockler, Owen Mckern

Faculty of Science, Medicine and Health - Papers: part A

The tridentate Schiff base ligand derived from the condensation of salicyl­aldehyde and glycine, in the presence of pyridine, forms the title polymeric square-pyramidal five-coordinate copper complex, [Cu(C5H5N)(C9H7NO3)(C5H5N)], in which the copper centers are linked via the carboxyl O atoms of neighboring groups occupying the apical site.


Dehydration And Partial Melting In Subduction Zones: Constraints From U-Series Disequilibria, Bernard Bourdon, Simon Turner, Anthony Dosseto Jan 2003

Dehydration And Partial Melting In Subduction Zones: Constraints From U-Series Disequilibria, Bernard Bourdon, Simon Turner, Anthony Dosseto

Faculty of Science, Medicine and Health - Papers: part A

We present a critical reappraisal of U-series data from arc volcanoes to constrain slab dehydration and melting processes using a global subduction zone data set. There is no clear evidence for significant mobilization of Th or Pa in dehydration fluids while the source region of arc rocks is relatively oxidized and mobility of U is strongly enhanced. It is argued that along-arc U/Th and U/Pa isotope data reflect time-integrated addition of U from the slab to the mantle wedge. The presence of large Ra-Th disequilibrium correlated with Ba/Th ratios provides evidence for some very recent fluid addition and fast magma …


Geochronology Of Coal Measures In The Sydney Basing From U-Pb Shrimp Dating Of Airfall Tuffs, Paul F. Carr, M Fanning, Brian G. Jones, Adrian C. Hutton Jan 2003

Geochronology Of Coal Measures In The Sydney Basing From U-Pb Shrimp Dating Of Airfall Tuffs, Paul F. Carr, M Fanning, Brian G. Jones, Adrian C. Hutton

Faculty of Science, Medicine and Health - Papers: part A

Zircon-bearing rhyolitic and dacitic airfall tuffs in the Late Permian Sydney Basin coal measures provide ideal chronostratigraphic markers due to their widespread occurrence and rapid emplacement. SHRIMP U-Pb zircon dates for several stratigraphically-controlled airfall tuffs are consistent with their relative ages and biostratigraphic data, and indicate that the Illawarra Coal Measures accumulated in less than ~ 12 million years. Isotopic ages of the A waba Tuff and the Burragorang Claystone Member are indistinguishable within analytical uncertainty and support the correlation of these units proposed previously on the basis of geochemical fingerprinti~g. Deposition of coal-bearing sequences in the southern Sydney Basin …