magmatic segregation

magmatic segregation

[mag′mad·ik ‚seg·rə′gā·shən]
References in periodicals archive ?
This indicates that magmatic segregation, which forms the nickel-sulphide deposits we are looking for, may have occurred in this area.
Because the production of PGM has come almost exclusively from large Precambrian ultramafic layered intrusions, such as the Bushveld or Stillwater complexes, of South Africa and Montana, respectively, the majority of geologists are of the opinion that PGM are restricted to these high temperature magmatic segregation environments.
Chromite occurs as magmatic segregations in ultrabasic igneous rocks.