Ocean Provinces & Sediments

Sediment Types

100

Sediments made from rocks on the continents

What is terrigenous/lithogenous?

200

The bottom of the seafloor is composed of this kind of rock.

What is basalt?

300

These sediments are also called oozes

What is biogenous?

400

These sediments were created in space.

What are cosmogenous

500

This type of sediments cover the greatest amount of sea floor

What are biogenous.

Sediments

100

This is used to classify particles by grain size.

What is the Wentworth Scale?

200

These sediments form from minerals in the ocean water.

**BONUS**

Three examples of this type of sediment include...

What are hydrogenous?

Manganese nodules, phosphates, carbonates, metal sulfides

300

Name something a scientist can learn from a deep sea core?

What are basin age, mineral resources, water temperature in years past, and the history of life in the ocean.

400

Neritic sediments are found

What is on the continental shelf

500

A layer of sediment that contains a mixture of sediments with various sizes is referred to as:

What is poorly sorted

Microfossils

100

These are microscopic hard parts of single celled surface living organisms.

What are oozes?

200

Forminifera have shells made of this

What is calcium carbonate CaCO₃?

300

The depth at which calcium carbonate has dissolved and is in a solution.

What is the Calcite Compensation Depth (CCD)?

400

Radiolarians and Diatoms are both examples of

What is siliceous ooze

500

This element is associated with a meteorite/asteroid impact occurring nearby.

What is iridium?

Oceanographic Tools

100

This is the method of measuring the ocean depth and seafloor features.

What is bathymetry?

200

Measures seafloor features based on gravitational bulges in sea surface.

What are satellites?

300

This is used to help determine the location and shape of plate boundaries.

What is seismic survey/activity?

400

Uses focused high-frequency sound beams to measure ocean floor depth and create seafloor maps.

What is Precision Depth Recorder (PDR)?

500

These are the two types of side-scan sonar discussed in Chapter 3.

What are GLORIA (Geological Long-range Inclined Acoustical instrument) and Sea MARC (Sea Mapping and Remote Characterization)

Provinces

100

Submarine mountains with flat tops due to wave erosion are called this.

What are tablemounts/guyots?

200

List the provinces in order from mid-ocean ridge to coast.

What is abyssal plain, rise, slope, shelf?

300

Steep slopes and deep-sea trenches are associated with this type of continental margin

What is an active margin?

400

Tube worms and other unique heat-resistant organisms are associated with this seafloor feature.

What are hydrothermal vents?

500

This shows the correlation between surface area and elevation/depth.

What is a hypsographic curve?