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β 4.3 ενδογενείς εξωγενείς δυνάμεις
- 1. Ενδογενείς δυνάμεις Σεισμοί και ηφαίστεια
- 2. Αν παρατηρήσετε το χάρτη θα δείτε κάποια τμήματα της γης ότι ταιριάζουν μεταξύ τους σαν πάζλ.
- 10. Ιμαλάϊα
- 15. Παράλληλη κίνηση Σχηματισμός στον Άγιο Ανδρέα
- 16. Ποια είναι η σχέση ανάμεσα στα ηφαίστεια και στα όρια των λιθοσφαιρικών πλακών;
- 17. Τα περισσότερα ηφαίστεια εντοπίζονται κοντά στα όρια των λιθοσφαιρικών πλακών Δακτυλίδι της Φωτιάς στον Ειρηνικό ωκεανό
- 19. Δακτυλίδι της Φωτιάς στον Ειρηνικό ωκεανό Θερμές κηλίδες ( hotspot volcano) Συγκεκριμένα απεικονίζεται η Χαβάη
- 20. Ποια είναι η σχέση των σεισμών με τις λιθοσφαιρικές πλάκες;
- 23. Εξωγενείς δυνάμεις Διάβρωση και αποσάθρωση
- 27. Κλίμακα Μποφόρ Κλίμακα Km / hour 0 < 1.4 1 1.5 – 5.4 2 5.5 – 11.9 3 12.0 - 19.4 4 19.5 – 28.4 5 28.5 – 38.5 6 38.6 – 49.7 7 49.8 – 61.6 8 61.7 – 74.5 9 74.6 – 87.8 10 87.9 – 102.2 11 102.3 – 117.4 12 117.5 – 132.8 13 132.9 – 149.0 14 149.1 – 165.9 15 166.0 – 183.2 16 183.3 – 203.3 17 203.4 – 220.3
Notas do Editor
- Example: India used to be an island, but about 15 million years ago it crashed into Asia (see map). As continental crust was pushing against continental crust the Himalayan mountain belt was pushed up. “ Mountains ” were also pushed down into the mantle as the normally 35 km thick crust is approximately 70 km thick in this region. Mt Everest is the highest altitude mountain on our planet standing 8,840 metres high. This means that below the surface at the foot of the mountain the crust is a further 61 km deep!!
- Manned or unmanned submersible vehicles (top right photo) have explored small parts of trenches discovering new species (like the fish photographed here) and amazing ecosystems.
- This map shows the margins of the Pacific tectonic plate and surrounding region. The red dots show the location of active volcanism. Notice how the majority of the volcanism is focused in lines along the plate boundaries? For this region this area is known as the “Pacific Ring of Fire”. But why are all of the volcanoes located at the plate margins?
- Hotspot volcanoes in the middle of the Pacific plate. Can anyone guess where they are? Answer: Hawaii
- The black dots on this map of the world depict where earthquake activity is occurring. You can see that, as with volcanoes, the earthquakes are NOT randomly distributed around the globe. Instead they occur in linear patterns associated with plate boundaries. (Note this diagram of earthquake distribution closely resembles the Pacific Ring of Fire distribution of volcanism).