The Laurentian Abyss is estimated to be 19,685 feet deep, which is approximately 3.7 miles. It is an underwater depression located off the eastern coast of Canada in the Atlantic Ocean. Researchers consider it less of a trench and more of an underwater valley.
The Laurentian Abyss has hydrothermal vents that produce an ecosystem that doesn't need sunlight for survival. The underwater depression was used in the plots of the movies "The Hunt for Red October," "Transformers" and "Transformers: Revenge of the Fallen." The latter two movies incorrectly stated that the abyss was 55,800 feet deep, which is approximately 10.6 miles.Learn More
Fold mountains form when the edges of two tectonic plates push against each other. This can occur at the boundary of an oceanic plate and a continental plate or at the boundary of two continental plates. Fold mountains are often composed primarily of sedimentary rock.Full Answer >
Landforms are divided into 11 major categories: Aeolian, coastal and oceanic, erosion, fluvial, impact, karst, lacustrine, mountain and glacial, slope, tectonic and volcanic. Within these groupings are many landform subtypes.Full Answer >
The Appalachian Highlands are a mountain range in Eastern North America. They run from Canada to regions of Georgia and through Alabama.Full Answer >
The Tonga Trench is a submarine trench located in the floor of the South Pacific Ocean. It forms the eastern boundary of the Tonga Ridge. It's 35,702 feet deep at its deepest point and has an average depth of 20,000 feet. It's about 50 miles wide and 850 miles in length. The Tonga Trench and Tonga Ridge form the northern half of the Tonga-Kermadec Arc.Full Answer >