Rocks 20 questions

Plutonic

What type of rock is granite an example of?

Clastic sedimentary

What type of rocks are sandstone, siltstone, and shale?

Sedimentary

What type of rocks does weathering and erosion near the Earth’s surface create materials for?

Rhyolite

The same mineral that solidifies slowly to form granite can also erupt to form _____.

Limestone & marble

What is an example of a metamorphic change in which the new rock has a new texture, but has the same minerals?

Coal

What does peat convert into as it is buried and compacted by overlying sediment?

bioclastic sediment

What type of sediment consists of broken shell fragments and similar remains of living organisms?

Extrusive igneous

What type of rock forms when magma erupts and solidifies on the Earth’s surface?

sedimentary rock

What type of rock makes up about 5% of Earth’s surface?

solidification of magma

How do igneous rocks form?

intrusive igneous

What type of rock solidifies within Earth’s crust?

metamorphic rock

What type of rock forms when igneous, sedimentary, or other metamorphic rocks change because of high temperature and/ or pressure, or compositional changes, or are deformed during mountain building?

basalt

Which rock makes up most of the oceanic crust?

granite

Which rock makes up most of the continental crust?

metamorphism

What is the process by which rocks and minerals change in response to changing temperature, pressure, and/ or chemical composition called?

igneous, sedimentary, metamorphic

What are the three categories used by geologists to describe how rocks form?

weathering

What is the process by which water and air attack rocks at the Earth’s surface called?

basalt

Which type of igneous rock is the most abundant rock type in the oceanic crust?

texture

What defines the shape, size, and arrangement of igneous mineral grains in a a rock?

foliation

What is parallel growth of mica (and other minerals) durning metamorphism and the deformation of shales producing layering called?