Category Archives: Class Notes

Cross Tabulation in Geographical Research

  Cross tabulation is a tool that allows you compare the relationship between two variables. Defining Cross Tabulation We can do this by an example: Suppose that you are hired by the local school  to conduct a survey on attitudes … Continue reading

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Lithosphere, LAB and Other Spheres of Earth

The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. below. The lithosphere is the most rigid of Earth’s layers. Although the rocks of the lithosphere are still considered elastic, they are not viscous. … Continue reading

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International Date Line: Line of Demarcation

The International Date Line (IDL) is an imaginary line on Earth’s surface defining the boundary between one day and the next. The International Date Line (IDL) on the map. The International Date Line is located halfway around the world from … Continue reading

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Migmatite : A Mixed Rock

  Migmatite is a rock that is a mixture of metamorphic rock and igneous rock. It is created when a metamorphic rock such as gneiss partially melts, and then that melt recrystallizes into an igneous rock, creating a mixture of the unmelted metamorphic part with the recrystallized igneous … Continue reading

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