Unit 4 Geography Revision

Unit 4 Geography Revision

1. INTRODUCTION

   • FOCUS
     • focus on explaining how different tectonic processes form contrasting landscapes
   • DEFINITIONS
     • Tectonic processes: movement within the Earth's lithosphere which causes plates to move on the mantle (Mariam Webster)
     • Contrasting landscapes: an expanse of land/scenery that differs strikingly (dictionary.com)
     • Intrusive: where internal magma from the Earth's crust is exposed from erosion/uplift
     • Extrusive: where lava is ejected from the volcano & hardens outside
     • Seismic: created from seismic processes such as earthquakes
   • FRAMEWORK
     • Look at how landscapes are formed by different tectonic processes
     • 3 processes causing contrasting landscapes: intrusive,extrusive, seismic
     • Case studies
     • explain how you're going to write it & how you will conclude it

2. METHODOLOGY

   • Intrusive: Isle of Arran, Scotland
     • examples of intrusive landforms: batholiths, sills, dikes - cause contrasting landforms
     • Philip Allan Edexcel A2 Geography textbook - Dunn et al (2009) & AQA A2 Geography Textbook
       • Academic, peer reviewed
   • Intrusive: Great Whin Sill,
     • example of a major sill created from tectonic activity - intrusive landform caused by tectonic activity
     • BBC - Seven Wonders Article Oct 2014 - Highforcewater.com - geology 2013-16
       • BBC = prestigious, academic report, reduces bias
   • Extrusive: Mt. St. Helens, USA
     • Example of a crypto-dome volcano, clear example of how extrusive landforms are causeing CL - is an example of destructive plate boundary activity
     • Geofactsheet 164 - Volcanoes - Ross, 2003, Volcanoes, curriculum Press
       • academic, accurate source of info used widely in schools
   • Extrusive: Deccan Plateau, India
     • An example of a lava plateau showing how extrusive igneous landforms can create contrasting landforms
     • Phillip Allan Edexcel A2 Geography textbook by Dunn et al (2009) - Deccanplateau.com
       • peer reviewed, accurate info, could be biased
   • Seismic: East African Rift Valley
     • good example of rift valley along divergent margin in an area f continental crust
     • Phillip Allan A2 Geography textbook - dunn et al 2009 - AQA A2 Geography textbook
       • peer reviewed, accurate, academic
   • Seismic: San Andreas Fault, california
     • example of a fault line caused by seismic tectonic processes on a boundary where 2 plates are moving
     • Youtube video: 'history of the San Andreas Fault' - San andreas fault USGS report by Schulz & wallace
       • bias, prestigious place - accurate, peer reviewed

3. CONCLUSION

   • cause variety of landscapes
   • plate tectonic theory is very complex, its not been fully explored, still got a long way to go - little evidence to prove theory
   • Intrusive = least contrasting, extrusive = most contrasting
   • include CASE STUDIES/ reference what has been said in report