REE: Rare earth elements - REE, LREE, MREE, HREE, REM, Lanthanides

In georefdatar: Geosciences Reference Datasets

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" \insertCiteConnelly2005georefdatar 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. \insertCiteRollinson1993,Marshall1999georefdatar. 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 \insertCiteConnelly2005georefdatar.

• REE Same as Lanthanides. The term rare earth elements as used in geochemistry – e.g \insertCiteRollinson1993,Marshall1999georefdatar.

• REM Rare earth metals. Sc, Y and the lanthanides \insertCiteConnelly2005georefdatar

• 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

\insertRef

Rollinson1993georefdatar

\insertRef

Marshall1999georefdatar

\insertRef

Connelly2005georefdatar

Examples

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

georefdatar documentation built on May 29, 2024, 2:23 a.m.