Web1,000 yr: 1 m; 10 million yr: 10,000 m; 50 million yrs, 50,000 m The Himalayas now reach an elevation of 8.8 km, and radiometric dating suggests that their uplift began about 45 million years ago. Assuming a constant rate of uplift, how fast did they rise in km, m, and mm? 1.96 x 10-7 km/yr; 1.96 x 10-4 m/yr; 1.96 x 10-1 mm/yr Web23 sep. 2024 · The depth of this low-velocity layer also agrees well with the 70- to 80-km depth of the LAB channel for a 120-million-year-old oceanic plate (2, 6). Low-velocity …

Assignment #5 Module 9 Flashcards Quizlet

WebStrength appears to be concentrated in the crustal upper 7–12 km of the lithosphere. This finding is in very good agreement with the depth distribution of seismicity. Earthquake hypocenters are restricted to the uppermost crustal levels, suggesting that brittle deformation of the lithosphere is limited to depth of 5–15 km (Tóth et al., 2002). Web21 aug. 2013 · In Figure 1(right), we highlight the structure of the upper-to-lower mantle transition around 660 km depth (PREM discontinuity is placed at 670 km) which is … how far is pottstown

9.2 The Temperature of Earth’s Interior – Physical …

WebLocated at a depth of approximately 410 and 660 km below the earth’s surface, the mesosphere is subjected to very high pressures and temperatures. These extreme … WebOceanic lithosphere is usually about 50–140 km thick. However, beneath the mid-ocean ridges is no thicker than the crust. Whereas, the continental lithosphere is around 40 km to about 280 km thick. Oceanic lithosphere Oceanic lithosphere comprises majorly of mafic crust and ultramafic mantle (peridotite). The asthenosphere (from Ancient Greek ἀσθενός (asthenós) 'without strength') is the mechanically weak and ductile region of the upper mantle of Earth. It lies below the lithosphere, at a depth between ~80 and 200 km (50 and 120 mi) below the surface, and extends as deep as 700 km (430 mi). However, the lower boundary of the asthenosphere is not well defined. highbury lodge nursery