Exam 3: Rocks: Materials of the Solid Earth

Under the right circumstances, by the process of weathering and erosion, any rock can be transformed into______ .

Silts and clays are commonly deposited in lakes, lagoons, swamps and marine environments because ________ .

A porphyritic texture where large crystals are embedded in a matrix of small crystal may form when_________ .

When sand lithifies, the resulting rock is commonly called__________ .

Sedimentary rocks make up approximately _______percent of the rocks in Earth's crust.

Magma differentiation tends to produce deposits of_______ near the base of intrusions.

What type of stress pressure. is illustrated in the diagram below?

Precipitation in the case of sedimentary rocks means that a solid rock forms _______.

Quartz is___ resistant to weathering and is an________ component of sands in riverbeds and on beaches.

What is required for an igneous rock to weather?

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Why do crystals in a magma stop growing during cooling?

When rocks experience high temperatures and differential stresses deep in Earth, their grains tend to_____ .

Lava always erupts violently when it has an________ composition, as in subduction zones.

________is the primary basis for distinguishing among various detrital sedimentary rocks.

Confining pressure is where______ .

Why does magma rise toward Earth's surface?

Breccia, a rock with angular particles, is likely to have traveled _______ .

Magma is currently forming beneath the________ .

Explain why sedimentary rocks are particularly important in studying the past history of Earth.