Apatite grains from the Los Colorados iron oxide–apatite (IOA) deposit, the largest IOA deposit in the Chilean Iron Belt (CIB), exhibit significant intracrystalline spatial variability with respect to the concentrations ...

© 2018 Elsevier LtdThe ratio of the halogens F and Cl in apatite is highly sensitive to changes in the composition of an evolving silicate melt or aqueous fluid. For this reason apatite chemistry is widely used as a monitor ...

Determining the age of mineralization of ore deposits is important for understanding the mechanisms and timing of ore formation. In many cases, however, conventional dateable mineral phases (e.g., zircon, monazite) are ...

The Carmen, Fresia and Mariela iron-oxide apatite (IOA) deposits of Cretaceous age, located in the Coastal Cordillera of northern Chile, comprise massive bodies of magnetite with minor apatite and actinolite crystals ...

Iron oxideapatite (IOA) and iron oxidecoppergold deposits (IOCG) are important sources of their namesake metals and increasingly for rare earth metals in apatite. Studies of natural systems document that IOA and IOCG ...

Iron oxide-apatite (IOA) or “Kiruna-type” deposits are an important source of Fe, P, REE, among other essential elements for society. Three main hypotheses have been proposed to explain the genesis of these controversial ...

The Cretaceous Chilean Iron Belt comprises more than 40 iron oxide-apatite (IOA) "Kiruna-type" deposits that extend ~600 km along the Coastal Range of northen Chile and occur within the domain of the southernmost segment ...

There are multiple working hypotheses for the formation of iron oxide-apatite (IOA) deposits that involve hydrothermal, magmatic-hydrothermal, and liquid immiscibility processes. Here, we report SEM-EDX observations of ...

Trace-element characteristics of magnetite from Kiruna-type iron oxide-apatite deposits indicate a magmatic origin. A possible scenario currently considered for the magmatic formation, apart from melt immiscibility, is ...