Opening the magmatic-hydrothermal window: high-precision U-Pb geochronology of the Mesoproterozoic Olympic Dam Cu-U-Au-Ag deposit, South Australia

L Courtney-Davies, CL Ciobanu… - Economic …, 2020 - pubs.geoscienceworld.org
Establishing timescales for iron oxide copper-gold (IOCG) deposit formation and the
temporal relationships between ores and the magmatic rocks from which hydrothermal …

Micron-to atomic-scale investigation of rare earth elements in iron oxides

NJ Cook, CL Ciobanu, K Ehrig, AD Slattery… - Frontiers in Earth …, 2022 - frontiersin.org
Hematite (α-Fe2O3) and magnetite (Fe3O4) readily accommodate a wide range of minor
and trace elements from across the periodic table at up to wt.% concentrations. This prompts …

A multi-technique evaluation of hydrothermal hematite UPb isotope systematics: Implications for ore deposit geochronology

L Courtney-Davies, SR Tapster, CL Ciobanu, NJ Cook… - Chemical …, 2019 - Elsevier
Abstract Hematite (α-Fe 2 O 3) is a common iron-oxide mineral known to incorporate U into
its crystal lattice at up to wt% concentrations and has been previously used to date ore …

Syn-to post-depositional processes related to high grade metamorphic BIFs: Geochemical and geochronological evidences from a Paleo to Neoarchean (3.5–2.6 Ga) …

MZ Pitarello, TJS dos Santos, MF Ancelmi - Journal of South American …, 2019 - Elsevier
Abstract In the Borborema Province, iron formations occur in Archean-Paleoproterozoic
nuclei including the highly metamorphosed and deformed Granjeiro Complex. In this work …

~ 1760 Ma magnetite-bearing protoliths in the Olympic Dam deposit, South Australia: Implications for ore genesis and regional metallogeny

L Courtney-Davies, CL Ciobanu, MR Verdugo-Ihl… - Ore Geology …, 2020 - Elsevier
Spatial associations between banded iron formation and iron-oxide Cu-Au (IOCG) style
mineralization are well documented in the Gawler Craton (South Australia), but the possible …

[HTML][HTML] Iron oxide chemistry supports a multistage hydrothermal genesis of BIF-hosted hematite ore in the Mt. Tom Price and Mt. Whaleback deposits

T Angerer, W Thorne, SG Hagemann, M Tribus… - Ore Geology …, 2022 - Elsevier
This study demonstrates the great value of iron oxide chemistry in low-temperature systems.
Hematite records elemental signatures of structural control, partial inheritance of pre-existing …

U-Pb geochronology and mineralogy of hematite from Mantoverde and Carmen de Cobre, northern Chile: Constraints on Andean IOCG mineralization

MR Verdugo-Ihl, CL Ciobanu… - Economic …, 2022 - pubs.geoscienceworld.org
The first U-Pb hematite dates are reported for the Mantoverde and Carmen de Cobre iron
oxide copper-gold (IOCG) deposits in the northern segment of the Coastal Cordillera, Chile …

Zircon at the nanoscale records metasomatic processes leading to large magmatic–hydrothermal ore systems

L Courtney-Davies, CL Ciobanu, MR Verdugo-Ihl… - Minerals, 2019 - mdpi.com
The petrography and geochemistry of zircon offers an exciting opportunity to better
understand the genesis of, as well as identify pathfinders for, large magmatic–hydrothermal …

A synthetic haematite reference material for LA‐ICP‐MS U‐Pb geochronology and application to iron Oxide‐Cu‐Au Systems

L Courtney‐Davies, SE Gilbert… - Geostandards and …, 2021 - Wiley Online Library
In both nature and synthetic experiments, the common iron oxide haematite (α‐Fe2O3) can
incorporate significant amounts of U into its crystal structure and retain radiogenic Pb over …

Hematite geochronology reveals a tectonic trigger for iron ore mineralization during Nuna breakup

L Courtney-Davies, M Danišik… - …, 2022 - pubs.geoscienceworld.org
Hematite and goethite deposits hosted in banded iron formations (BIFs) in the Pilbara craton
(Western Australia) represent one of Earth's most significant Fe reserves; however, the …