Marine Sediments

The build up of land by the settlement of sediment and soil in a new location.

• cementation

• deposition

• erosion

• weathering

A student finds a sandstone on a hiking trip. He creates the steps it took to create the sandstone. 1. A large rock gets weathered. 2. The sediments are eroded by water 3. The sediments are deposited at a beach 4. ? 5. Sandstone is created. Which two processes best completes the 4th step?

• Melting and cooling

• Erosion and compaction

• Compaction and cementation

• Evaporation and dissolving

Which layer is the youngest?

Tags

NGSS.MS-ESS1-4

Which layer is younger than layer 4?

• 2

• 1

• 6

• 3

Tags

NGSS.MS-ESS1-4

Sediment moving through rivers and depositing in the ocean can form layers over time. These layers can also be called ______________.

• igneous rocks

• metamorphic rocks

• sedimentary rocks

• sand dunes

Fossil B was once a marine organism. This means the environment that it lived in was most likely ___________.

• a desert

• a lake

• a forest

• an ocean

Tags

NGSS.MS-LS4-1

Sediments can turn into a Sedimentary Rock.

What helps it stick together in one piece?

• Small minerals fill the spaces and cement it together.

• Organisms get trapped and decay into glue.

• Bacteria changes the sediment into cement.

• Heat melts the sediment and it is fused together

Which of the following is a primary source of marine sediments?

• Volcanic eruptions

• River discharge

• Wind erosion

• Glacial melting

What type of marine sediment is primarily composed of the remains of microscopic organisms?

• Terrigenous sediment

• Biogenous sediment

• Hydrogenous sediment

• Cosmogenous sediment

Which process is responsible for the transportation of terrigenous sediments to the ocean?

• Precipitation

• Evaporation

• Erosion

• Sublimation