A petrographic province is a geological region within which the igneous rocks reveal a relationship (so-called consanguinity) in chemical composition, which may be referred to a community of origin. This relationship may be chemically a close one, but the rocks have widely varying mineralogical composition, or the kinship may be restricted to one or more of the chemical components in the rocks.
Etymologyedit
Petrography derives from petra (Greek: πέτρα), meaning 'rock', and graphein (Greek: γράφειν), 'to write'.
petrographic, province, petrographic, province, geological, region, within, which, igneous, rocks, reveal, relationship, called, consanguinity, chemical, composition, which, referred, community, origin, this, relationship, chemically, close, rocks, have, widel. A petrographic province is a geological region within which the igneous rocks reveal a relationship so called consanguinity in chemical composition which may be referred to a community of origin This relationship may be chemically a close one but the rocks have widely varying mineralogical composition or the kinship may be restricted to one or more of the chemical components in the rocks Etymology editPetrography derives from petra Greek petra meaning rock and graphein Greek grafein to write References editThis article incorporates text from a publication now in the public domain Petrographic Province New International Encyclopedia 1905 Retrieved from https en wikipedia org w index php title Petrographic province amp oldid 1175919759, wikipedia, wiki, book, books, library,
