Geological Processes and Oceanic Features

The video tutorial explores the formation and characteristics of oceanic plates, focusing on basalt and mid-oceanic ridges. It discusses sea-floor spreading, sediment accumulation, and the subduction process leading to magma formation. The tutorial also examines landforms created by geological processes, such as volcanoes and granite formations, and highlights sediment deposition's role in agriculture, particularly in California's Great Valley.

What type of rock is typically found in oceanic plates?

• Sandstone

• Granite

• Limestone

• Basalt

Where does magma rise to form mid-oceanic ridges?

• At the continental shelf

• At the ocean floor

• At the mid-oceanic ridges

• At the oceanic trenches

What happens to sediments as the sea-floor spreads?

• They form new oceanic plates

• They evaporate

• They accumulate in trenches

• They dissolve

What geological feature is formed by the accumulation of sediments in trenches?

• Mountains

• Volcanoes

• Coastal ranges

• Plains

What happens to the oceanic plate as it is subducted?

• It solidifies

• It melts

• It rises

• It evaporates

Which type of rock is an example of an intrusive feature?

• Granite

• Basalt

• Limestone

• Sandstone

What type of lava is more likely to reach the surface?

• Granite lava

• Basaltic lava

• Thick lava

• Sedimentary lava

What geological process contributes to the formation of the Great Central Valley?

• Sediment dissolution

• Folding and faulting

• Volcanic eruption

• Erosion

What is the primary composition of the sediment in the California Coast Range?

• Volcanic ash

• Scraped-off sea-floor sediment

• Glacial deposits

• Desert sand

What geological process is responsible for the folding of the sea-floor?

• Erosion

• Accretion

• Subduction

• Sea-floor spreading