Ocean Science Exam 2

How many years ago was the last ice age?

10,000 years ago

Sediments produced by plants and animals in the sea are called: Hydrogenous Biogenous Volcanogenic Terrigenous Cosmogenous

Biogenous

Which type of marine sediments include siliceous and calcareous oozes?

Biogenous

Calcite dissolves more readily in seawater that is ________ in temperature and ________ in pressure.

Colder Higher

Where are the thickest marine sediments located?

Continental shelf

Chemical reactions within seawater cause certain minerals to come out of solution, or precipitate, they change from the ________ state to the ________ state.

Dissolved solid

Rock salt (halite) is an example of which of the following sediment types? Biogenous Cosmogenous Hydrogenous Lithogenous Terrigenous

Hydrogenous

Shale is an example of which of the following sediment types? Biogenous Cosmogenous Hydrogenous Lithogenous

Lithogenous

Volcanic ash is considered to be which type of marine sediment?

Lithogenous

Sediment that begins as rocks on continents or islands is called ________.

Lithogenous sediment

The ancient remains of which of the following, buried before they could decompose, are the source of today's petroleum deposits?

Microscopic organisms

Sediments found on continental margins are called:

Neritic

The type of marine sediment that forms the thickest deposits worldwide is:

Neritic lithogenous sediment deposits

The study of how the ocean, atmosphere, and land have interacted in the past to produce changes in ocean chemistry, circulation, biology, and climate is called ________.

Paleoceanography

One of the most abundance, chemically stable, and durable minerals in the Earth's crust is ________.

Quartz

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern... Volcanic ash Glaciers Turbidity currents Siliceous ooze Rivers

Siliceous ooze

All the following are examples of hydrogenous sediment except : Phosphates Halites Manganese Nodule Evaporites Stromatolites

Stromatolites

Collecting adequate samples from which of the following is the most difficult? Continental Shelf Estuaries and Lagoon Marine sediments on land The deep-ocean floor

The deep sea floor

Which of the following statements about marine sediments is correct? They contain plant fossils used to map the movement of the continents They are useful for determining the distribution of ancient dinosaurs They represent Earth's history dating back for billions of years They record the timing and severity of some global extinction events They provide a discontinuous, disturbed record of Earth history

They record the timing and severity of one global extinction events

All the following are examples of lithogenous sediment except : Beach Sand Clays Volcanic Particles Diatom ooze Glacial deposits

diatom ooze

________ deposits are found on continental shelves and in shallow water near islands, whereas, ________ deposits are found in deep-ocean basins and are fine grained.

neritic pelagic

By analyzing cores of sediment collected from the sea floor, scientists can infer past environmental conditions on all of the following except.. atmospheric winds nutrient supply an abundance of marine life sealife populations surface temperature

sealife populations