NettetThe crust averages 15-20 km thick, but in some places, such as under mountains, the crust can reach thicknesses of up to 100 km. There are two main types of crust; … Nettet16. apr. 2024 · Oceanic crust is about 6 km (4 miles) thick. It is composed of several layers, not including the overlying sediment. Which type of crust is thicker? continental …

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Nettet3. aug. 2024 · The oceanic crust is the component of the earth’s crust that makes up the ocean basins. This part, which as a density of around 3.0 g/cm3, is made up of dark … NettetExercise 4.1 How Thick Is the Oceanic Crust? Figure 4.4a shows a triangular zone about 60 km thick; within this zone, approximately 10% of the mantle rock melts to form … kobe huaraches shoes

Which Crust Is Thicker - QnA

Nettet5. sep. 2024 · On average, oceanic crust is 6–7 km thick and basaltic in composition as compared to the continental crust which averages 35–40 km thick and has a roughly andesitic composition. Where is thinnest crust on Earth? Answer and Explanation: The Earth’s crust is thinnest under the ocean. Nettet16. apr. 2024 · Continental crust is also less dense than oceanic crust, whose density is about 2.9 g/cm 3 (0.10 lb/cu in). At 25 to 70 km (16 to 43 mi), continental crust is considerably thicker than oceanic crust, which has an average thickness of around 7 to 10 km (4.3 to 6.2 mi). How much more dense is the oceanic crust than the continental … Nettetmcclain, j.s., on long-term thickening of the oceanic-crust, geophysical research letters 8: 1191 (1981). google scholar. mcclain, k.j., geophysical evidence for the absence of a crustal magma chamber under the northern juan-de-fuca ridge - a contrast with rose results, journal of geophysical research 87: 8477 (1982). kobe in clayton nc