Geology Questions

What is the thinnest layer of the Earth?

When two continental plates pull apart a __________ forms

Shield volcanoes produce lava that is primarily_______in composition.

Most magma of earth is produced at____plate boundaries.

All types of volcanic cones share which feature?

The partial melting of______ will yield mafic (basaltic) magma.

Which of the following is a characteristic of an igneous rock found in a batholith?

The most abudant gas found in magma is______.

Which type of volcanic hazard can decrease global temperatures?

Basaltic magmas have a_____viscosity, whereas rhyolitic magmas have a_____viscosity.

Which of the following geologic regions creates volcanic arcs?

The major difference between phaneritic and aphanitic texture is______.

Which of the following would decrease the viscosity of magma?

which nonsilicate mineral has carbonate as a negatively charged complex ion?

An igneous rock with a____ texture solidified deep within Earth.

Change in a magma's composition due to melting of surrounding country rock is called______.

Stocks differ from batholiths because of their______.

Which component of magma includes mobile ions of silicon?

Which of these minerals would be the first to crystallize in a body of magma?

The most abundant minerals found in granitic (fells) igneous rocks include______.