Earth Science - NW 6

Parent - Granite or shale, Coarse, high grade reigonal metamorphism

Gneiss

Parent - Shale or Phyllite, Med-Coarse, Med grade reigonal metamorphism

Schist

Parent - Shale or Slate, Med-fine grained, intermediate reigonal metamorphism between schist and slate

Phyllite

Parent - Shale, Fine, Low grade reigonal metamorphism

Slate

Parent - Sandstone, Coarse, Low grade reigonal metamorphism

Quartzite

Parent - Limestone or dolostone, Coarse, Reigonal or contact metamorphism

Marble

Word for pattern lots of metamorphic rocks display

Foliation

Difference between reigonal and contact metamorphism

reigonal is larger scale, like duiring mountain building. contact is smaller scale that is small igneous intrusions.

What two variables can cause a rock to become metamorphic

Heat and pressure

When rocks get buried by enormous amounts of sediment (EX: river delta)

Burial metamorphism

Most common type of metamorphism

Regional

4 foliated rocks in order of highest to lowest grade of metamorphism

Gneiss, Schist, Phyllite, Slate

2 non foliated rocks in chapter 6

Quartzite and marble