why are some rocks called intermediate rocks?

0 ⤊

why are some rocks called intermediate rocks?

science subject

2006-11-28 13:08:42 · 3 answers · asked by batista~rox 1 in Science & Mathematics ➔ Earth Sciences & Geology

3 answers

Intermediate rocks contain between 53% and 65% silica. They also contain potassium and plagioclase feldspar with a small amount of quartz. Diorite and Andesite are the two most common types of intermediate rock.

2006-11-28 13:17:25 · answer #1 · answered by Ruairi 2 · 0⤊ 0⤋

Hi. Most rock is either igneous, sedimentary, or metamorphic depending on how it formed. If I had to guess I would say intermediate rock was in transition between sedimentary and metamorphic.

2006-11-28 13:13:46 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋

Igneous rocks that contain half felsic (light) materials and half mafic (dark) materials are called intermediate rocks.

2006-11-28 17:01:13 · answer #3 · answered by dawn 2 · 0⤊ 0⤋