What is a terrane in geology?
Regional SpecificsA terrane is defined as a fault-bounded block containing rocks that have a distinct geologic history compared with contiguous blocks. What is a terrane and how does it form? In geology, a terrane (in full, a tectonostratigraphic terrane) is a crust fragment formed on a tectonic plate (or broken off from it) and accreted or
Is Mount Etna a composite or shield volcano?
Regional SpecificsComposite volcanoes are steep-sided and cone-shaped, made up of layers of ash and lava and containing sticky lava which doesn’t flow very far. Mount Etna in Italy is a composite volcano. Shield volcanoes have gently sloping sides and runny lava that covers a wide area. What type of volcano is Mt St Etna? Stratovolcano Mount
Which answer is not a real life example of geologic cross sections?
Regional SpecificsWhat are cross sections in geology? A geological cross-section is a graphic representation of the intersection of the geological bodies in the subsurface with a vertical plane of a certain orientation. What does a cross-section show about the earth? The Cross section of the Earth is a visualization of the composition of the Earth in
When was the last tsunami in the Atlantic Ocean?
Regional SpecificsNovember 18, 1929November 18, 1929, on the southern edge of the Grand Banks, 280 km south of Newfoundland (Fine et al., 2005). The tsunami was caused by a submarine slide, which was triggered by an unusually large (for this region) magnitude 7.2 earthquake. Has the Atlantic Ocean ever had a tsunami? The most widely known
What causes a slump?
Regional SpecificsCauses of slumping include earthquake shocks, thorough wetting, freezing and thawing, undercutting, and loading of a slope. Translational slumps occur when a detached landmass moves along a planar surface. What happens in a slump? slump, in geology, downward intermittent movement of rock debris, usually the consequence of removal of buttressing earth at the foot of
What are the four types of igneous intrusions?
Regional SpecificsIgneous Intrusions Sills: form when magma intrudes between the rock layers, forming a horizontal or gently-dipping sheet of igneous rock. … Dykes: form as magma pushes up towards the surface through cracks in the rock. … Batholiths: What are the four types of igneous intrusions quizlet? Terms in this set (10) Pluton. a body of