B Pewkliang, A Pring, J Brugger - Canadian Mineralogist, 2008 - canmin.geoscienceworld.org The composition and microstructure of opalized saurian bones (Plesiosaur) from
Andamooka, South Australia, have been analyzed and compared to saurian bones
that have been partially replaced by magnesian calcite from the same ... Cited by 1 - Related articles - BL Direct - All 3 versions
Y Amelin, M Back - Chemical geology, 2006 - Elsevier We report structural, geochemical, and TIMS U–Th–Pb and U-series isotopic
data for several samples of precious and common opal, which we tested as
potential standards for ion microprobe and LA-ICPMS isotopic studies. The ... Cited by 5 - Related articles - All 4 versions
[CITATION] The occurrence and formation of opal at Coober Pedy and Andamooka
- ►sciamdigital.com [PDF] R Motani - Special Editions, 2004 - Scientific American Fish-shaped reptiles called ichthyosaurs reigned over the oceans for as long ... ICHTHYOSAURS patrolled the world's oceans for 155 million years. ... Murky
Origins ALTHOUGH MOST PEOPLE forgot about ichthyosaurs in the early 1800s, ... Cited by 6 - Related articles - BL Direct - All 5 versions
[CITATION] Australian sedimentary opal: why is Australia unique
KL Brown, LG Bacon - Proceedings of World Geothermal Congress, 2000 - iga.igg.cnr.it A purpose built pilot plant was constructed at the Wairakei Power Station to
investigate the possibility of producing silica sols from geothermal water. The
plant constructed was designed to process approximately 5000 litres per ... Cited by 8 - Related articles - View as HTML - All 2 versions
GD McOrist, A Smallwood, JJ Fardy - Journal of Radioanalytical and Nuclear Chemistry, 1994 - akademiai.com Neutron activation analysis was used to determine the concentration of trace
elements in 42 samples of black, grey and white opals taken from a number of
recognised Australian field. The results were evaluated to determine if a ... Cited by 7 - Related articles - All 3 versions
B Rondeau, E Fritsch, M Guiraud, C Renac - European Journal of Mineralogy, 2004 - eurjmin.geoscienceworld.org The "Hungarian" opal deposits (now in Slovakia) were the unique source of gem
opal in Europe from the Roman times to XIX th century (Leechman, 1965; Webster,
1975; Bariand & Poirot, 1985). However it has been little studied compared ... Cited by 4 - Related articles - BL Direct - All 5 versions
[CITATION] An Australian sauropterygian (Cimoliasaurus), converted into precious opal
