Answer and Explanation: The continental lithosphere
Lithosphere
A lithosphere is the rigid, outermost shell of a terrestrial-type planet or natural satellite that is defined by its rigid mechanical properties. On Earth, it comprises the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater. The oute…
Which tectonic plates are continental and which are oceanic?
We also have two primary types of tectonic plates. One is oceanic, and the other is the continental. At the convergent boundaries, these two plates meet. What transpires when they collide helps to decide the plate type. And remember, the two plates interacting are oceanic and continental. How are volcanoes formed along the converging edge?
How do Oceanic and continental landforms compare?
- Collision: when two continental plates are shoved together
- Subduction: when one plate plunges beneath another (Fig. 7.15)
- Spreading: when two plates are pushed apart (Fig. 7.15)
- Transform faulting: when two plates slide past each other (Fig. 7.15)
Which is lighter than oceanic crust or the continental crust?
Redoubt and Iliamna sit on the Alaska-Aleutian subduction zone. Here, the dense oceanic crust of the Pacific Plate slides beneath the lighter continental crust of the North American Plate. The plates move about 2.6 inches per year. Beneath the surface of the Kenai Mountains, the Pacific Plate dives abruptly at the western edge of Cook Inlet.
Which crust is denser oceanic or continental?
The plates interact with each other in three ways:
- Divergent
- Convergent
- Transform
What are the differences between continental and oceanic lithosphere How are they similar?
Difference Between Oceanic and Continental Crust The oceanic crust is mainly made out of dark basalt rocks that are rich in minerals and substances like silicon and magnesium. By contrast, the continental crust is made up of light-colored granite rocks full of substances like oxygen and silicon.
What is the difference between oceanic lithospheric material and continental lithospheric material 1?
Continental lithosphere is thicker than its oceanic counterpart and does not subduct. Its crust is also richer in radioactive elements. Moreover, heat flow beneath continents is significantly lower than under oceans (e.g., Jaupart et al., 1998), which tends to show that continents are more insulating.
How is continental lithosphere different from oceanic lithosphere quizlet?
How is continental lithosphere different from oceanic lithosphere? The continental lithosphere is different from the oceanic lithosphere because the continental lithosphere is mostly made of granite, is about 150km thick, and is less dense than oceanic crust.
What is the difference between oceanic plate and continental plate?
Continental plates are much thicker that Oceanic plates. At the convergent boundaries the continental plates are pushed upward and gain thickness. The rocks and geological layers are much older on continental plates than in the oceanic plates. The Continental plates are much less dense than the Oceanic plates.
What are two differences between oceanic crust and continental crust?
1. The oceanic crust is made up of basalt while the continental crust is made up of granite. 2. The oceanic crust is thinner while the continental crust is much thicker.
What is the continental lithosphere?
Definition and introduction. The continental lithosphere consists of the continental crust and, typically, some nonconvecting part of the underlying upper mantle (Figure 1). In plate tectonics terms, the continental lithosphere is part of the rigid outer rind of the Earth, which is segmented into several major plates.
What is difference between continental and oceanic crust quizlet?
The oceanic crust is thinner and denser, and is similar in composition to basalt (Si, O, Ca, Mg, and Fe). The continental crust is thicker and less dense, and is similar to granite in composition (Si, O, Al, K, and Na). The mantle is made of magnesium, iron and silicon.
What is the difference between oceanic and continental lithosphere Why does oceanic lithosphere Subduct while continental lithosphere does not?
-The oceanic lithosphere is denser than the continental lithosphere so it subducts. That means it gets shoved down underneath the overriding plate. The overriding plate doesn't subduct because it is made up of less dense rock.
How do continental crust and oceanic crust differ quizlet?
Continental crust is thicker than oceanic crust; continental crust is less dense than oceanic crust; the oldest continental crust is older than the oldest oceanic crust; plus the continental crust is composed of a variety of rock types, whereas oceanic crust is composed of basalt and gabbro.
What is the difference of continental and oceanic?
Continental crust is typically 40 km (25 miles) thick, while oceanic crust is much thinner, averaging about 6 km (4 miles) in thickness. The effect of the different densities of lithospheric rock can be seen in the different average elevations of continental and oceanic crust.
What is the difference between continental and plate?
The main difference between plate tectonics and continental drift is that plate tectonics describes the features and movement of Earth's surface in the present and in the past whereas continental drift describes the drifting of Earth's continents on the ocean bed.
What is the difference between continental crust and continental plate?
0:391:57Crust vs. the Tectonic Plate (What's the difference?) - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe brittle crust and lithospheric mantle are grouped as a mechanical unit to form the tectonicMoreThe brittle crust and lithospheric mantle are grouped as a mechanical unit to form the tectonic plates. The plates can be oceanic or continental depending on the overlying. Crust.