What are deep ocean trenches surficial evidence for?

What are deep ocean trenches surficial evidence for?

chapter 3 geol

Question Answer
Deep ocean trenches are surficial evidence for ________. sinking of oceanic lithosphere into the mantle at a subduction zone
A become plate boundary is characterised by means of ________. a deep, vertical fault along which two plates slide previous one any other in reverse instructions

What used to be never proposed as evidence supporting the lifestyles of Pangaea?

Because Wegener may not establish a mechanism able to transferring continents. Which of the following was once never proposed as evidence supporting the existence of Pangaea? Islands along the Mid-Atlantic Ridge with rocks dating back from 542 million to 2500 million years ago.

Are deep oceanic trenches maximum ample around the rim of the Atlantic Ocean basin?

Deep-oceanic trenches are most plentiful across the rim of the ocean basin.

What evidence did the Deep Sea Drilling Project in finding about the dates of rocks in the ocean basins?

What evidence did the Deep Sea Drilling Project in finding about the dates of rocks within the ocean basins? The ocean basins are fairly young; maximum ocean basin rocks and sediments are Cretaceous or younger in age. Which of the next used to be never proposed as evidence supporting the life of Pangaea?

Which form of plate boundary is characterised through arcs of Stratovolcanoes and deep ocean trenches?

Which type of plate boundary is characterized via arcs of Stratovolcanoes? Oceanic-continental plate barriers: if the subducting plate subducts underneath continental lithosphere, then a equivalent belt of volcanoes shall be generated on the continent. These are referred to as volcanic arcs.

How the Hawaiian island chain supplies evidence in support of plate tectonics?

Explain how the Hawaiian Island chain supplies evidence in support of Plate Tectonics. The combined processes of magma formation, eruption, and continuous movement of the Pacific Plate over the desk bound hot spot have left the trail of volcanoes around the ocean flooring that we now call the Hawaiian-Emperor Chain.

What type of plate boundary makes deep ocean trenches?

convergent plate limitations
In specific, ocean trenches are a function of convergent plate limitations, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides underneath less-dense lithosphere in a procedure called subduction, making a trench.

What was once the objective of the Deep Sea Drilling Project?

The Deep-Sea Drilling Project (DSDP) was a scientific program for drilling cores of sediment and basaltic crust underneath the deep oceans and recovering them for study.

What reasons the formation of deep ocean trenches?

Deep ocean trenches are formed when a continental plate descends underneath an oceanic plate. This is commonly a technique of plate tectonics. The Earth’s lithosphere is divided into 17 large tectonic plates and about 20 smaller plates, all of which are often moving with admire to one another.

Where would you expect to see deep ocean trenches?

Deep-sea trenches are generally situated on the outer (ocean) facet of the mountain ranges of the island arcs. Geologically they represent contemporary geosynclinal structures. The inner most trenches, such as the Marianas Trench , achieving a intensity of 11,022 m, are discovered in the Pacific Ocean.

What is the deepest oceanic trench led to through?

The Mariana trench contains the inner most part of the world’s oceans, and runs alongside an oceanic-oceanic convergent boundary. It is the result of the oceanic Pacific plate subducting beneath the oceanic Mariana plate.

What are the names of the ocean trenches?

Ocean trenches exist in the entire global’s oceans. They include the Philippine Trench, Tonga Trench, the South Sandwich Trench, the Eurasian Basin and Malloy Deep, the Diamantina Trench, the Puerto Rican Trench, and the Mariana.