GRADE 10: Major lithospheric plates.pptx

MAJOR LITHOSPHERIC PLATE

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2. OCEANIC CRUST CONTINENTAL CRUST LITHOSPHERE LITHOSPHERE ASTHENOSPHERE

3. a theory stating that the Earth’s layer is fragmented into either a small or a large plate.

4. What have you noticed about the Earth's lithosphere? The entire Earth’s lithosphere is broken into numerous segments called plates Plates are those rigid sections of the lithosphere that move as a unit.

5. TECTONIC PLATES The lithosphere, the rigid outermost shell of the earth is broken into tectonic plates Tectonic plates are pieces of the Earth’s crust and the upper mantle called the lithosphere Tectonic plates are composed OCEANIC LITHOSPHERE CONTINENTAL LITHOSPHERE Tectonic plates are subdivided into three categories: major or primary plates, minor or secondary plates, microplates or tertiary plates

6. Based on the map, What are the MAJOR tectonic plates?

7. Pacific Plate 1 Antarctic Plate 7 North American Plate 6 Indo- Australian Plate 5 African Plate 2 Eurasian Plate 3 South American Plate 4

8. Pacific Plate 1 Pacific Plate- This is the largest tectonic plate covering more than 103 million square kilometers area and is underneath the Pacific Ocean. MAJOR LITHOSPHERIC OR TECTONIC PLATES

9. African Plate 2 African Plate- This plate covers 61, 300, 000 km2 of the African continent, some parts of the Atlantic Ocean and the Mediterranean Sea. MAJOR LITHOSPHERIC OR TECTONIC PLATES

10. Eurasian Plate 3 Eurasian Plate- This plate is covering most of the area in Europe and Russia of about 67, 800, 000 km2. MAJOR LITHOSPHERIC OR TECTONIC PLATES

11. South American Plate 4 South American Plate- This plate covers some regions of the Atlantic Ocean and the entire South American continent of about 43, 600, 000 km2. MAJOR LITHOSPHERIC OR TECTONIC PLATES

12. Indo- Australian Plate 5 Indo-Australian Plate- This contains a huge part of the Australian continent, Indian subcontinent, and the surrounding ocean of the Australian continents of about 58, 900, 000 km2. MAJOR LITHOSPHERIC OR TECTONIC PLATES

13. North American Plate 6 North American Plate- This plate extends 75, 900, 000 km2 from the North Pole to Siberia. This plate covers North America, some portions of the Atlantic Ocean and the Arctic Ocean, Greenland and the Bering Sea. MAJOR LITHOSPHERIC OR TECTONIC PLATES

14. Antarctic Plate 7 Antarctic Plate- This covers the continents in Antarctica and the Southern Ocean of about 60, 900, 000 km2. Table 1. Major Lithospheric Plat MAJOR LITHOSPHERIC OR TECTONIC PLATES

15. Based on the map, What are the MINOR tectonic plates?

16. Philippine Sea Plate 1 Juan De fuca Plate 7 Cocos Plate 6 Scotia Plate 5 Nazca Plate 2 Caribbean Plate 3 Arabian Plate 4

17. Philippine Sea Plate 1 The Philippine Sea Plate or the Philippine Plate is a 5, 500, 000 km 2 tectonic plate comprising of oceanic lithosphere that lies beneath the Philippine Sea, in the eastern part of the Philippine MINOR LITHOSPHERIC OR TECTONIC PLATES

18. Nazca Plate 2 The Nazca Plate is an oceanic tectonic plate located in the eastern part of the Pacific Ocean. MINOR LITHOSPHERIC OR TECTONIC PLATES

19. Caribbean Plate 3 The Caribbean Plate is an oceanic tectonic plate underlying in Central America and the Caribbean Sea. It measures about 15. 600, 000 km2. MINOR LITHOSPHERIC OR TECTONIC PLATES

20. Arabian Plate 4 The Arabian Plate is a 5, 000, 000 km2 tectonic plate in the eastern and northern hemisphere and one of the continental plates that have been moving northward in recent geological history colliding with the Eurasian Plate. MINOR LITHOSPHERIC OR TECTONIC PLATES

21. Scotia Plate 5 MINOR LITHOSPHERIC OR TECTONIC PLATES The Scotia Plate is a 1, 600, 000 km2 tectonic plate on the edge of the South Atlantic and the Southern Ocean

22. Cocos Plate 6 The Cocos Plate is a 2, 900, 000 km2 young oceanic plate beneath the Pacific Ocean. MINOR LITHOSPHERIC OR TECTONIC PLATES

23. Juan De fuca Plate 7 The Juan de Fuca Plate is a 250, 000 km2 tectonic plate generated from the Juan de Fuca Ridge that is subducting under the northerly portion of the western side of the North American Plate. MINOR LITHOSPHERIC OR TECTONIC PLATES

24. Microplates or tertiary plates are small, mostly rigid areas of the lithosphere, located at major plate boundaries but rotating as more or less independent plates. Tectonic plates are able to move because the earth’s lithosphere has greater mechanical strength than the underlying asthenosphere. Each plate is slowly moving to each other, causing geologic events to happen along their boundaries. The places on Earth where most of the earthquakes originated or some mountains and volcanoes were formed mark the boundaries of each lithospheric plates Scientists determine the scientific basis in dividing lithospheric plates such as the occurrence of an earthquake (seismicity), volcanic eruptions (volcanism), and mountain formation .