in a subsequent and extensive study of rabbits concluded that the deposits, from 3 days to 18 months after administration of the gold-containing drug, have a constant composition with Au : P : S ratios of 1 : 1 : 3 (Ghadially et al., 1978). A recent extended X-ray absorption fine structure (EXAFS) study of isolated aurosomes from the rat kidney after both chronic and acute administration of gol...

The goal of this paper is a first attempt to link the geology and mineral deposits of the Gondwana GIS, called GO-GEOID, to spatial statistics and map modelling. Such integration allows, for example, meaningful identification of the mineral potential of unexplored regions relative to those around them that are known to host major ore deposits. We use gold and tin deposits of Africa to derive pr...

Surface geological and geochemical mapping have been key technical contributors to many gold discoveries over the past 25 years. However, in the last ten years there has been a growing emphasis on using geophysical techniques to compliment them in covered terrains. As the search for gold deposits under covered areas expands, there will be increasing emphasis on integrating the geoscientific dis...

Sm-Nd ages of pegmatite dikes that crosscut gold-bearing structures in the southern Yilgarn Craton, Western Australia, provide minimum age constraints of 2640 6 11 Ma, 2628 6 10 Ma, and 2620 6 36 Ma for gold mineralization at the Westonia and Nevoria (Yellowdine Terrane) and Scotia (Norseman Terrane) gold deposits, respectively. Similarly, a post–gold mineralization dike at Westonia has a U-Pb ...

Gold production in New Zealand has been significant since the mid 1800s, totalling 900 t (29 Moz) to 2005. In addition, there is potential for a further 1230 t (39.5 Moz) of gold in known and undiscovered deposits. Most of the gold has originated from epithermal and mesothermal (orogenic) hydrothermal systems. Epithermal gold occurs in the Northland, Coromandel and Taupo volcanic zones in quart...

Biopsies of rheumatoid synovial membrane before and after chrysotherapy were examined with the light and electron microscopes, and subjected to electronprobe x-ray analysis. The main change noted was the occurrence of electron-dense deposits of characteristic morphology within pre-existing lysosomes. Such deposits were also seen in other varieties of lysosomal bodies. X-ray analysis showed the ...