Petrography

The petrography is the Science having for object the description of the Roche S and the analysis of their structural natures, mineralogical and chemical. It is distinguished from the Pétrologie, discipline stressing the phenomena of genesis, installation and deterioration of the described rocks statically in addition.

Derived words

  • a pétrographe is a person specialized in petrography.

  • the petrographic adjective qualifies what refers to petrography.

Description of a magmatic Rock

The complete study of a rock is carried out on various scales. Information collected is complementary and makes it possible to recall its conditions of installation and its origin.

  • On a solid mass scale: the layer

  • On the scale of the outcrop: the flow
  • On the scale of the sample: the structure
  • On a mineral scale: the texture

See too

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