Geology - Sedimentary Rocks

What two steps are necessary for lithification to occur?

• coloration

• cementation

• construction

• compaction

Out of the six sizes of clasts, which of the following is the SMALLEST?

• Clay

• Silt

• Cobbles

• Pebbles

A type of sedimentary rock featuring angular fragments of rock cemented together is called

• coal

• conglomerate

• slate

• breccia

Plankton that secrete a silica gel are the basis for what sedimentary rock?

• Arkose

• Chert

• Conglomerate

• Slate

You would likely find evaporites in which of the following places?

• Mid-Ocean Ridge

• Mt. Everest

• Death Valley, CA

• Amazon

Which of the following is NOT one of the four classes of sedimentary rocks?

• Organic

• Biochemical

• Glacial

• Clastic

The process by which sediment settles out of a transporting medium (say, water) is called

• deposition

• transpiration

• layering

• vaccuming

The Cliffs of Dover (see picture) feature massive walls of chalk. What class of sedimentary rock is chalk a part of?

(a)  

What type of sedimentary rock can be broken into plate-like sheets?

• Coal

• Sandstone

• Chert

• Shale

What is the chemical composition of limestone?

• LST₂

• CaCO₃

• P₂NeLO

• As₃O₂

Tags

NGSS.MS-PS1-1