Which is an example of an active continental margin quizlet?
Active continental margins are typically associated with the following structures: –Deep-ocean trench—a deep valley adjacent and roughly parallel to the continental margin that marks where oceanic crust subducts beneath the continental crust.
What does an active continental margin have?
An active continental margin is a coastal region that is characterized by mountain-building activity including earthquakes, volcanic activity, and tectonic motion resulting from movement of tectonic plates. Active margins typically have a narrower and steeper continental shelf and slope.
Which type of continental margin has active volcanoes?
8.10. Two major types of the continental margins include (1) active continental margin and (2) passive continental margins. The “Pacific Ocean” is characterized by the active continental margins which are mainly the narrow tectonically active areas associated with the volcanoes, oceanic trenches, and earthquakes.
What are active margins active with?
Active continental margins are those that are tectonically active, such as along much of the Pacific coast. Active margins are marked by earthquakes, volcanoes, and mountain belts. Unlike passive margins, they lack a continental rise and abyssal plain.
What is an active continental margin quizlet?
Active Continental Margins- where the oceanic lithosphere is being sub ducted beneath the continent. Often associated with deep ocean trenches. Located primarily around the Pacific Ocean. Sediments and rocks can be scraped from the descending plate and accumulate on the continental plate as an accretionary wedge.
What is an active margin quizlet?
Active Margin. Definition. a continental margin that coincides with a plate boundary. Location.
Is the Oregon coast an active continental margin?
Oregon Continental Shelf Management The State of Oregon maintains an interest and is an active participant in the activities that occur on the Outer Continental Shelf (OCS) beyond the State's Territorial Sea boundaries.
Is the Mariana Trench An example of an active continental margin?
The western coasts of North and South America are one example of active continental margins, where mountains are being formed, volcanoes and earthquakes occur, and deep oceanic trenches are found. The east coast of Asia is another active continental margin where the deepest oceanic trench, the Marianas, can be found.
How are active continental margins formed quizlet?
Active continental margins are located along convergent plate boundaries where oceanic lithosphere is being subducted beneath the leading edge of a continent (all around the ring of fire).
Which of the following statements accurately describes active continental margins?
Which statement accurately describes active continental margins? They are regions of great geological stability.
Which description describes the active type margins?
Active margins have similar features to passive margins, but the plate boundary affects the properties of the features. Active margins, like the Pacific coast of North America, have narrower shelves, steeper slopes, and little to no rise, particularly in convergent boundaries .
Where are active continental margins located?
west coast of An active continental margin is found on the leading edge of the continent where it is crashing into an oceanic plate. An excellent example is the west coast of South America. Active margins are commonly the sites of tectonic activity: earthquakes, volcanoes, mountain building, and the formation of new igneous rock.
Is Alaska a passive margin?
These are “active” margins, and the U.S. Pacific Northwest, southern Alaska, and California are examples of such active continental margins. Other continental margins are called “passive” because there is no nearby plate boundary. The U.S. Atlantic margin is a good example of a passive margin.
How are active continental margins related to plate tectonics quizlet?
How are active continental margins related to plate tectonics? Active continental margins are located along convergent plate boundaries where oceanic lithosphere is being subducted beneath the leading edge of a continent (all around the ring of fire).
Is the Mariana trench An example of an active continental margin?
The western coasts of North and South America are one example of active continental margins, where mountains are being formed, volcanoes and earthquakes occur, and deep oceanic trenches are found. The east coast of Asia is another active continental margin where the deepest oceanic trench, the Marianas, can be found.
Is the California coast an example of an active margin?
In geology, some types of continental margins are be zones of high seismicity due to the proximity of tectonic plate boundaries. These are “active” margins, and the U.S. Pacific Northwest, southern Alaska, and California are examples of such active continental margins.
Is Florida a passive or active margin?
The eastern U.S. is a passive margin. Daytona Beach in Florida is flat and sandy, typical of a passive margin.
Is California an active margin?
Southern California Southern California's margin is unique. We are classified as an active margin, but we don't have a trench/subduction zone. We are, however, on a plate boundary – the transform fault known as the San Andreas Fault Zone. Thus, our margin has features similar to passive margin, but with many extras.