EOSC 116 Lecture Notes - Lecture 4: Metamorphic Rock, Oceanic Crust, Geosphere
5 Jul 2016
School
Department
Course
Professor
Document Summary
The cryosphere is a subset: all ice and snow. How does it interact with other earth systems: the hydrosphere and the geosphere, erosion and sediments erosion and the deposition of sedimentary rocks a. i. Rocks around stanley park good example of erosion and deposition during mesozoic a. i. 1. a. i. 2. Rising coastal mt. to north were providing sediment being transported south and west in rivers across the lower mainland and out to van. Water has vital role to play in the generation of magmas at subduction zones and this highlights a link btwn the hydrosphere and the subsurface geosphere b. i. 2. Oceanic crust contains many fractures and faults which allow ocean water to penetrate. As the water moves deeper into subsurface it is heated and reacts with some of the minerals in the basaltic crust to form hydrous minerals contain water in their crystal. Important link btwn geosphere and hydrosphere b. ii. b. iii. Water moves into crust at mid ocean ridges b. iv.
