Sea Floor Spreading Lab Discussion Questions
Determine the rate of sea floor spreading that occurs along a mid ocean ridge by using paleomagnetic evidence and determine age of ocean basin.
Sea floor spreading lab discussion questions. As years pass lateral segments of seafloor will thus share the same. According to the theory of plate tectonics from the greek tekto builder the earth s crust is broken into many slowly moving plates. The rate of seafloor spreading is approximately every 10 years. Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean r.
4 2 name key lab day time pre lab questions complete these questions before coming to lab. Discussion questions part 2. Namely you re going to focus on how the layers of the earth are similar to and different from each other and some of the lines of evidence that. General science 1110l lab lab 9.
The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american. Sea floor spreading answer key this is a mid ocean ridge. The frosting represents magma. A ridge is created.
A specific location for this kind of boundary is north america and eurasian. Sea floor spreading occurs at the mid ocean ridge where two plates are moving away from each other. The following link shows images of the sea floor spreading as well as support materials for plate tectonics study. Correction to lab 2 problem 3d lab 3 key seafloor spreading tectonics lab 4 key geography of oceans lab 5 key ocean sediment lab 6 key seismic profiling lab 7 key sea water temperature and salinity ocean chemistry problem set key lab 8 key analysis of water masses lab 9 key ocean currents lab 10 key.
A 3 inches b 30 meters c 30 inches d 3 cm e 30 cm. Write a brief statement that describes each of the following ocean floor features. Graham crackers represent the plates. Whats people lookup in this blog.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. As the ocean seafloor spreads the newly formed floor will adapt a specific magnetic signature according to the earth s magnetic pole at that time. Modeling seafloor spreading lab questions answer key. This process that creates new ocean floor from diverging plates is sea floor spreading.
It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. Discussion questions part 1. The purpose of this exercise is to supplement some of the plate tectonics topics you ve worked on during lecture in a relatively short lab. Sea floor spreading and plate tectonics why this lab is important.
Lab 2 key marine maps and charts. Sea floor spreading earth science post module 2 middle school page 3. Visualize the continents moving apart as the sea floor spreads. Sea floor spreading.
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