Earth history Inv. 3

Front

What does the Principle of Original Horizontality state?

Back

Sedimentary layers of rock are originally deposited in flat and horizontal layers.

Front

What type of rock is most likely to form on the ocean floor?

Back

Limestone.

Front

What process is necessary for sandstone to form?

Back

Groundwater fills the spaces between the particles.

Front

Which rock layer is considered the youngest?

Back

Sunshine Shale.

Front

Which rock layer formed first among the listed options?

Back

Bright Angel Shale.

Front

What is sedimentary rock?

Back

Rock formed by the accumulation and compaction of mineral and organic particles.

Front

What is the significance of the Law of Superposition in geology?

Back

In an undeformed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest are at the top.

Front

What is the process of lithification?

Back

The process through which sediments are compacted and cemented to form sedimentary rock.

Front

What are the main types of sedimentary rocks?

Back

Clastic, chemical, and organic.

Front

How does limestone typically form?

Back

From the accumulation of marine organisms' shells and skeletons or through chemical precipitation.