Tectonics Dingbats!

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How many key words can you

remember?

• 1 point for correctly identifying

each word

• 2 points for each correct definition

Tectonics Dingbats!

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E

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Gore

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o

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o t

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le A

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Answers

1. Core – centre and hottest part of earth (>5000C)2. Crust – hard rigid surface layer of Earth3. Lapilli – small tephra 2 – 64mm diamter4. Magma – molten rock inside earth5. Sial – continental crust (slica and aluminium)6. Subduction – one plate moves under another in2 mantle7. Asthenosphere – upper mantle8. Horst – block pushed up by faulting e.g. at a rift valley9. Pahoehoe – ropy, basaltic lave10. Paleomagnetism – study of changes in earth’s magnetic field11. Pyroclastic Flow – flow of hot gas and tephra12. Batholith – igneous intrusion13. Kilauea – active volcano, Hawaii14. Basaltic – runny type of lava