scholarly journals Rare Earth Element Fluorocarbonate Minerals from the Olympic Dam Cu-U-Au-Ag Deposit, South Australia

Minerals ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 202 ◽  
Author(s):  
Danielle Schmandt ◽  
Nigel Cook ◽  
Cristiana Ciobanu ◽  
Kathy Ehrig ◽  
Benjamin Wade ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
South Australia ◽  
Olympic Dam

scholarly journals Numerical Modeling of REE Fractionation Patterns in Fluorapatite from the Olympic Dam Deposit (South Australia)

Minerals ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 342 ◽  
Author(s):  
Sasha Krneta ◽  
Cristiana Ciobanu ◽  
Nigel Cook ◽  
Kathy Ehrig
Keyword(s):  
Numerical Modeling ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
South Australia ◽  
Fluid Composition ◽  
Chloride Complexes ◽  
Copper Gold ◽  
The Impact ◽  
Olympic Dam

Trace element signatures in apatite are used to study hydrothermal processes due to the ability of this mineral to chemically record and preserve the impact of individual hydrothermal events. Interpretation of rare earth element (REE)-signatures in hydrothermal apatite can be complex due to not only evolving fO2, fS2 and fluid composition, but also to variety of different REE-complexes (Cl-, F-, P-, SO4, CO3, oxide, OH− etc.) in hydrothermal fluid, and the significant differences in solubility and stability that these complexes exhibit. This contribution applies numerical modeling to evolving REE-signatures in apatite within the Olympic Dam iron-oxide-copper-gold deposit, South Australia with the aim of constraining fluid evolution. The REE-signatures of three unique types of apatite from hydrothermal assemblages that crystallized under partially constrained conditions have been numerically modeled, and the partitioning coefficients between apatite and fluid calculated in each case. Results of these calculations replicate the measured data well and show a transition from early light rare earth element (LREE)- to later middle rare earth element (MREE)-enriched apatite, which can be achieved by an evolution in the proportions of different REE-complexes. Modeling also efficiently explains the switch from REE-signatures with negative to positive Eu-anomalies. REE transport in hydrothermal fluids at Olympic Dam is attributed to REE–chloride complexes, thus explaining both the LREE-enriched character of the deposit and the relatively LREE-depleted nature of later generations of apatite. REE deposition may, however, have been induced by a weakening of REE–Cl activity and subsequent REE complexation with fluoride species. The conspicuous positive Eu-anomalies displayed by later apatite with are attributed to crystallization from high pH fluids characterized by the presence of Eu3+ species.

The Olympic Dam copper-uranium-gold-silver-rare earth element deposit, South Australia: A geophysical case history

2003 ◽  
Vol 2003 (3) ◽  
pp. 147-168 ◽  
Author(s):  
Donald Esdale ◽  
Don F. Pridmore ◽  
John Coggon ◽  
Philip Muir ◽  
Peter Williams ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Case History ◽  
Earth Element ◽  
South Australia ◽  
Gold Silver ◽  
Olympic Dam

Rare Earth Element Phosphate Minerals from the Olympic Dam Cu-U-Au-Ag Deposit, South Australia: Recognizing Temporal-Spatial Controls On Ree Mineralogy in an Evolved IOCG System

2019 ◽  
Vol 57 (1) ◽  
pp. 3-24 ◽  
Author(s):  
Danielle S. Schmandt ◽  
Nigel J. Cook ◽  
Cristiana L. Ciobanu ◽  
Kathy Ehrig ◽  
Benjamin P. Wade ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
South Australia ◽  
Olympic Dam

scholarly journals Rare Earth Element Behaviour in Apatite from the Olympic Dam Cu–U–Au–Ag Deposit, South Australia

Minerals ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. 135 ◽  
Author(s):  
Sasha Krneta ◽  
Cristiana L. Ciobanu ◽  
Nigel J. Cook ◽  
Kathy Ehrig ◽  
Alkis Kontonikas-Charos
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
South Australia ◽  
Olympic Dam

Rare earth element geochemistry of feldspars: examples from Fe-oxide Cu-Au systems in the Olympic Cu-Au Province, South Australia

2017 ◽  
Vol 112 (2) ◽  
pp. 145-172 ◽  
Author(s):  
Alkis Kontonikas-Charos ◽  
Cristiana L. Ciobanu ◽  
Nigel J. Cook ◽  
Kathy Ehrig ◽  
Sasha Krneta ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
South Australia ◽  
Element Geochemistry ◽  
Fe Oxide

RARE EARTH ELEMENT AND THORIUM ASSAYING IN PARTS OF THE EAST COAST, INDIA

2016 ◽  
Author(s):  
Shayantani Ghosal ◽  
◽  
Sudha Agrahari ◽  
Debashish Sengupta
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
East Coast
Sign in / Sign up

Export Citation Format

Share Document