Exam 5: Formation of Sediment and Sedimentary Rocks

A quartz sandstone and an arkose were both produced from the weathering of a granite. Which rock's sediments experienced a greater degree of weathering than the other?

Choose the option that correctly orders the minerals from most easily weathered to most weather resistant.

Why is calcite such a common sedimentary cementing material?

What are the important processes involved in lithification?

Limestone, composed mainly of calcite, can form by both inorganic and biologic processes.

Which location would contain the most well-rounded rocks?

All clay-mineral grains in a clastic sedimentary rock are clay size.

Why is cementation such an important process?

How are plate tectonics and sedimentary rock connected? (5.8)

Which option describes the process of exfoliation?

A clastic sedimentary rock composed of sand (85%) and silt (15%) would be called a

Identify the products in the following chemical reaction. 2 KalSi3O8(s) + 11 H2O --> 2 K+(aq) + 2 OH-(aq) + 4 H4SiO4 (aq) + Al2Si2O5(OH)4(s)

What occurs during cementation?

Why is carbonic acid the most abundant acid in chemical weathering?

Why are sedimentary rocks not a component of soil?

Which statement about iron oxidation is false?

What occurs during compaction?

Read carefully through the paragraph below, and decide which of the options is correct. A shallow sea existed in North America approximately 425 million years ago. This ancient geography was interpreted based on the sedimentary rocks in the region of that age. Mudstone, limely shale and shaley sandstone mark the location of the shallow sea. Sandstone occurred near the ancient shoreline and conglomerate occurred near the source area. Clasts of volcanic and plutonic rocks in the conglomerate imply the uplift and erosion of igneous rocks of nearby mountains.

Why are grain size and composition often used to name sedimentary rocks?

A blocky clastic sedimentary rock composed of silt would be called a(n)