PlateBoundaries-Activity-Sp21

Plenge Sp21 Tectonic Boundaries (30 pts) Your name Poojha Palle Group # ______ ---------------------------------------------------------------------------------------------------------------------------------------------------------------- Purpose: To use observational evidence to find plate boundary, and to correlate specific types of evidence to specific types of plate movement. Materials: (1) Case study maps and key (available in class and on Sakai), (2) This worksheet, (3) etext and/or notes from Chapter 4.5, (4) Reading on boundary types (available on Sakai) Part 1. Match features with boundaries (5 pts). Instructions: 1. Use chapter 4 from text and “Notes of boundary types” to describe plate boundaries in Table 1 (pg. 1). Describe each boundary in terms of data you could collect (e.g., seafloor age, elevation) rather than processes we infer (e.g., subduction). Table 1. (5 pts) Fill out the box for each boundary using the words provided and/or descriptions as needed. You only need to write something if you can get useful information about that plate boundary from that piece of evidence. If not, write “N/A” Associated with  Boundary type Volcanoes? (yes or no) & describe Earthquakes (shallow, deep, or both) High elevation? (yes or no) & describe Low elevation? (yes or no) & describe Crustal age? (young or different ages, N/A) O-O Divergent No Yes, shallow Relatively high, yes No Young O-C Convergent Yes, very active volcanic activity near island chains Yes, varies from shallow to deep Low elevation Yes, relatively low on oceanic crust Medium O-O Convergent Yes, active volcanic activity. Caldera, stratavolcanoes, lava domes. Yes, varies from shallow to deep Low elevation at trenches High at volcanic islands Old C-C Convergent No Yes, varies from shallow to deep Relatively high elevation due to mountains No N/A C-C Divergent No Yes, shallow; moderate volcanic activity, strata, shield, and caldera volcanoes. Low elevation Relatively low N/A Part 2. Identifying boundaries based on features (20 pts) 1 