| Trench Ocean Maximum Depth | Mariana Trench Pacific Ocean 10,920 m (35,830 ft) | Tonga Trench Pacific Ocean 10,820 m (35,500 ft) | Philippine Trench Pacific Ocean 10,540 m (34,580 ft) | Kuril–Kamchatka Trench Pacific Ocean 10,542 m (34,587 ft) |
|---|
What are the names of some trenches?
| Name Location | 1 Challenger Deep Izu–Bonin–Mariana Arc, Mariana Trench, Pacific Ocean | 2 Tonga Trench Pacific Ocean | 3 Galathea Depth Philippine Trench, Pacific Ocean | 4 Kuril–Kamchatka Trench Pacific Ocean |
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What are some examples of ocean trench?
- Mariana Trench. Located in the western Pacific Ocean, the Marina Trench is considered to be the deepest part of the Earth’s surface. …
- Tonga Trench. …
- Philippine Trench. …
- Kuril- Kamchatka Trench. …
- Kermadec Trench. …
- Izu-Ogasawara Trench. …
- Japan Trench. …
- Puerto Rico Trench.
How many trenches are in the ocean?
Of the Earth’s
20 major trenches
, 17 are found in the Pacific basin, a vast area rimmed by trenches of both marginal and island arc varieties. Marginal trenches bound the west coast of Central and South America from the Gulf of California to southern Chile.
Where is an example of a trench?
Finding Trenches
Ocean trenches exist
in all the world’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.
What does an ocean trench look like?
Ocean trenches are
steep depressions in the deepest parts
of the ocean [where old ocean crust from one tectonic plate is pushed beneath another plate, raising mountains, causing earthquakes, and forming volcanoes on the seafloor and on land.
What causes a trench?
Ocean trenches are a result of
tectonic activity
, which describes the movement of the Earth’s lithosphere. … At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.
Which ocean has the deepest trenches?
The Mariana Trench, in
the Pacific Ocean
, is the deepest location on Earth. According to the Exclusive Economic Zone (EEZ), the United States has jurisdiction over the trench and its resources. Scientists use a variety of technologies to overcome the challenges of deep-sea exploration and explore the Trench.
Is there deeper than Mariana Trench?
The deepest place in the Atlantic is in the
Puerto Rico Trench
, a place called Brownson Deep at 8,378m. The expedition also confirmed the second deepest location in the Pacific, behind the Challenger Deep in the Mariana Trench. This runner-up is the Horizon Deep in the Tonga Trench with a depth of 10,816m.
Which is the deepest trench in the lithosphere?
The deepest point on the lithosphere is
Mariana Trench
in the Pacific Ocean…
Why are most trenches found in the Pacific Ocean?
Why are most oceanic trenches found in the Pacific Ocean?
The Pacific Ocean is shrinking and plates are descending below surrounding plates along its edges
, hence the creation of trenches.
Is the Mariana Trench still forming?
The Mariana Trench was formed through a process called
subduction
. … Today, the majority of the Mariana Trench is a U.S. protected zone as part of the Marianas Trench Marine National Monument, established in 2009.
What do deep sea trenches reveal about Earth’s crust?
What do deep-sea trenches reveal about Earth’s crust? They
indicate where crust is moving together and diving down deeper into the mantle.
How deep in the ocean have we been?
Vescovo’s trip to the Challenger Deep, at the southern end of the Pacific Ocean’s Mariana Trench, back in May, was said to be the deepest manned sea dive ever recorded, at
10,927 meters (35,853 feet)
.
How deep is the Kermadec Trench?
The Kermadec Trench reaches a maximum depth of
32,962 ft (10,047 m)
.
What lives in deep sea trenches?
The three most common organisms at the bottom of the Mariana Trench are
xenophyophores, amphipods and small sea cucumbers (holothurians)
, Gallo said. The single-celled xenophyophores resemble giant amoebas, and they eat by surrounding and absorbing their food.
