REE {georefdatar}

Rare earth elements – REE, LREE, MREE, HREE, REM, Lanthanides

Description

List of rare earth elements and subsets thereof.

Usage

REE

Lanthanides

LREE

MREE

HREE

REM

Format

character vector with 15 elements.

character vector with 15 elements.

character vector with 4 elements.

character vector with 6 elements.

character vector with 4 elements.

character vector with 17 elements.

Details

The "Red Book" ( ) defines the rare earth metals (REM) as Sc, Y and the lanthanides (La – Lu). In geochemistry, the term "rare earth elements" is generally limited to the lanthanides – e.g. (Rollinson 1993, 1999). Therefore, it is crucial to consider the context in which this term is used.
A distinction is made here between rare earth metals (REM) and rare earth elements (REE). The latter are the lanthanides as they are commonly used in geochemistry. Speaking in sets, the REE are a subset of the REM. And all subsets of the REE are also limited to the lanthanides.

• Lanthanides La–Lu ( ).

• REE Same as Lanthanides. The term rare earth elements as used in geochemistry – e.g (Rollinson 1993, 1999).

• REM Rare earth metals. Sc, Y and the lanthanides ( )

• LREE Light REE, La–Nd

• MREE Intermediate REE, Sm–Ho

• HREE Heavy REE, Er–Lu

Functions

• Lanthanides: Only lanthanides

• LREE: Light REE subset of REE

• MREE: Intermediate REE subset of REE

• HREE: Heavy REE subset of REE

• REM: Rare earth metals

References

Rollinson HR (1993). Using Geochemical Data: Evaluation, Presentation, Interpretation. Longman Group UK.

Marshall CP, Fairbridge RW (eds.) (1999). Encyclopedia of Geochemistry, Kluwer Academic Encyclopedia of earth sciences series. Kluwer Academic Publ., Dordrecht, Bosten, London. ISBN 9780412755002.

Connelly NG, Damhus T, Hartshorn RM, Hutton AT (eds.) (2005). Nomenclature of Inorganic Chemistry: IUPAC recommendations 2005. Royal Society of Chemistry, Cambridge. ISBN 0854044388, https://iupac.org/what-we-do/books/redbook/.

Examples

# get information from the periodic table of elements
subset(pte, Symbol %in% REE)