geography sba
Specific objectives
1. Define crustal plates
A crustal plate is a rigid layer of the Earth's crust that is believed to drift slowly.
2. Name and locate the Caribbean adjacent plates.
Plates adjacent to the Caribbean plate are South American plate which is located south of the Caribbean plate, North American plate which is located north of the Caribbean plate, Nazca plate which is locate west of the Caribbean plate and the Cocoa plate which is located south west of the Caribbean plate.
3. Distinguish among convergent, divergent, and transform plate margins.
Divergent plates move apart from each other Convergent plates compress against each other while Transform plates move past each other.
4. Explain the formation and distribution of volcanoes, earthquakes and fold mountains.
Volcanoes- they are formed by the earth’s magma erupting onto the surface and cooling. They usually occur on Plate Boundaries. However this is not always the case. Sometimes they can occur on faults or ancient faults.
Earthquakes- Earthquakes are formed by the movement of the Earth's plates. When a plate squeezes or stretches too much huge rocks are formed at the edges, and these rocks can move with a lot of force, which causes an earthquake, or by human explosions. Earthquakes are concentrated along the plate boundaries. Not all earthquakes occur at the same depth, however. Where Hess had postulated that the rocks of the ocean floor were diving down into subduction zones, earthquakes occur at shallow depths of 0 to 33 km below the surface near the trenches, and depths of almost 700 km below the surface further inland.
Fold mountains- they occur at convergent plate margins. When the plate carrying continental material goes back into the mantle, the lighter old rocks are scraped up and folded on the surface. They are too light to be subducted into the dense mantle. The lighter continental material floats on top and becomes compressed in large folds. This happens when rocks are
1. Define crustal plates
A crustal plate is a rigid layer of the Earth's crust that is believed to drift slowly.
2. Name and locate the Caribbean adjacent plates.
Plates adjacent to the Caribbean plate are South American plate which is located south of the Caribbean plate, North American plate which is located north of the Caribbean plate, Nazca plate which is locate west of the Caribbean plate and the Cocoa plate which is located south west of the Caribbean plate.
3. Distinguish among convergent, divergent, and transform plate margins.
Divergent plates move apart from each other Convergent plates compress against each other while Transform plates move past each other.
4. Explain the formation and distribution of volcanoes, earthquakes and fold mountains.
Volcanoes- they are formed by the earth’s magma erupting onto the surface and cooling. They usually occur on Plate Boundaries. However this is not always the case. Sometimes they can occur on faults or ancient faults.
Earthquakes- Earthquakes are formed by the movement of the Earth's plates. When a plate squeezes or stretches too much huge rocks are formed at the edges, and these rocks can move with a lot of force, which causes an earthquake, or by human explosions. Earthquakes are concentrated along the plate boundaries. Not all earthquakes occur at the same depth, however. Where Hess had postulated that the rocks of the ocean floor were diving down into subduction zones, earthquakes occur at shallow depths of 0 to 33 km below the surface near the trenches, and depths of almost 700 km below the surface further inland.
Fold mountains- they occur at convergent plate margins. When the plate carrying continental material goes back into the mantle, the lighter old rocks are scraped up and folded on the surface. They are too light to be subducted into the dense mantle. The lighter continental material floats on top and becomes compressed in large folds. This happens when rocks are