Kimberlite and kimberlitic intrusives of southeastern Australia

1980 ◽  
Vol 43 (330) ◽  
pp. 727-731 ◽  
Author(s):  
John Ferguson
Keyword(s):  
Partial Melting ◽  
Late Jurassic ◽  
Incompatible Element ◽  
Spatial Association ◽  
South Eastern ◽  
Southeastern Australia ◽  
Eastern Australia ◽  
Kimberlite Magma ◽  
Element Contents

SummaryFifteen widely separated occurrences of kimberlite and kimberlitic rocks are now known in south-eastern Australia. Those that have been satisfactorily dated isotopically give ages ranging from Permian to Late Jurassic. One occurrence exhibits an intimate spatial association with carbonatite. The classification of these rocks as ‘kimberlitic’ is partly based on their mode of emplacement, and particularly on the presence of crust/mantle inclusions. Compared with African kimberlitic magmas, the southeastern Australian examples have lower incompatible-element contents. These differences are interpreted as representing slightly greater degrees of partial melting of a four-phase Iherzolite assemblage at shallower depths (∼ 65 km) than typical African kimberlite magma.

Dispersal of Irradiated Queensland Fruit-Flies, Dacus-Tryoni (Froggatt) (Diptera, Tephritidae), in Southeastern Australia

1987 ◽  
Vol 35 (3) ◽  
pp. 275 ◽  
Author(s):  
JR Macfarlane ◽  
RW East ◽  
RAI Drew ◽  
GA Betlinski
Keyword(s):  
Fruit Flies ◽  
Long Distance ◽  
South Eastern ◽  
Southeastern Australia ◽  
Mark Release Recapture ◽  
Eastern Australia ◽  
South Eastern Australia

Mark-release-recapture studies with laboratory-reared irradiated Dacus tryoni (Froggatt) were undertaken in summer in south-eastern Australia. These showed that flies can disperse up to 94 km, almost four times the furthest distance recorded previously for this species. Most recaptures beyond 6 km were east of the point of release. Several distant traps each caught more than one fly, indicating that the flies moved together over long distances. This suggests that mating could occur and that new infestations could result from the long-distance migration of adults.

A theory of prior streams as a casual factor of soil occurrence in the riverine plain of South-Eastern Australia

1950 ◽  
Vol 1 (3) ◽  
pp. 231 ◽  
Author(s):  
BW Butler
Keyword(s):  
Land Surface ◽  
Alluvial Fan ◽  
South Eastern ◽  
South Wales ◽  
Local Soil ◽  
Murray River ◽  
Eastern Australia ◽  
Soil Surveys ◽  
South Eastern Australia

A new theory is submitted on the origin of the soil formations in the alluvial plains region of southern New South Wales and Victoria embracing the Murray River and tributaries which has been given the name of the Riverine Plain of South-Eastern Australia. The Riverine Plain is delineated and the climate and physiography of the environment are briefly described. The theory postulates the occurrence of a system of prior streams independent of the present stream pattern; from the activity of this system the present soils and land surface were derived. The formations are discussed in terms of sedimentary array, salinity, and degree of leaching. Figures illustrate the ideal sediment pattern of a prior stream formation, a typical alluvial fan, and a simplified map of the region showing prior and present stream systems. A classification of the named soils from local soil surveys is given in the form of 15 sequences of general catenary relationship. The influence of halomorphism in soil development is discussed with the deduction that solonetzous and solodous soils occur generally throughout the region. The age of prior stream activity is set at late Pleistocene to early Recent.

Some Collections of Vaucheria (Tribophyceae) From Southeastern Australia

1987 ◽  
Vol 35 (6) ◽  
pp. 617 ◽  
Author(s):  
T Christensen
Keyword(s):  
Line Drawings ◽  
South Eastern ◽  
Southeastern Australia ◽  
Eastern Australia ◽  
Unialgal Culture ◽  
South Eastern Australia

Sixteen species of Vaucheria are recorded from south-eastern Australia, including V. conifera sp. nov. and V. mulleola subsp. calida subsp. nov. One sample is found to vary to such an extent, also in unialgal culture, that it agrees with the description of V. cruciata in some cases and with that of the later established V. arechavaletae in others: it is concluded that these two species should be merged into one. The collection stations are briefly characterised. The species are illustrated with line drawings, and the Australian material of previously described species is compared with what is known from elsewhere. Formation of galls, caused by the rotatorian Proales wernecki, has been observed in four species. Drawings are included of one gall of familiar shape and one of a shape not previously described, the latter formed by Vaucheria erythrospora, which has never been found with galls before.

The Genus Clavulina (Basidiomycetes) in Southeastern Australia

1986 ◽  
Vol 34 (1) ◽  
pp. 103
Author(s):  
EJH Corner
Keyword(s):  
South Eastern ◽  
Southeastern Australia ◽  
Eastern Australia ◽  
South Eastern Australia

Mistakes are pointed out in the identification of four of the seven species of Clavulina recorded for south-eastern Australia by R. H. Petersen. Attention is drawn to other errors.

Sign in / Sign up

Export Citation Format

Share Document