Definition of Petrographically. Meaning of Petrographically. Synonyms of Petrographically

- of rocks is based on the information acquired during the petrographic analysis. Petrographic descriptions start with the field notes at the outcrop and...
- A petrographic microscope is a type of optical microscope used to identify rocks and minerals in thin sections. The microscope is used in optical mineralogy...
- A petrographic province is a geological region within which the igneous rocks reveal a relationship (so-called consanguinity) in chemical composition,...
- section (or petrographic thin section) is a thin slice of a rock or mineral sample, prepared in a laboratory, for use with a polarizing petrographic microscope...
- 54°26′49″N 3°03′50″W / 54.447°N 3.064°W / 54.447; -3.064 The Langdale axe industry (or factory) is the name given by archaeologists to a Neolithic centre...
- formally abandoned and replaced by orthopyroxene. When determined petrographically or chemically the composition is given as relative proportions of enstatite...
- near the Earth's surface. In a recent rocks and sediment analysis or petrographic study on the lakes and adjoining rivers in San Pablo, sulfate concentrations...
- I-type granites are saturated in silica but undersaturated in aluminum; petrographic features are representative of the chemical composition of the initial...
- reported finding microscopic fragments of crinoids in this limestone. Later petrographic analysis of samples of the limestone from near the summit revealed them...
- plutonic rocks are distinctly basic; the archipelago is a soda-alkaline petrographic province, with a petrologic succession similar to that found in other...