An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 and 6,000 metres (9,800 and 19,700 ft). Lying generally between the foot of a continental rise and a mid-ocean ridge , abyssal plains cover more than 50% of the Earth 's surface.

深海平原（abyssal plain）坡度小于1∶1000的深海底部。 大洋盆地的重要组成单元。 常位于大陆隆和深海丘陵之间，水深3000～6000米，大型的可延伸几百至几千千米。

Abyssal plain, flat seafloor area at an abyssal depth (3,000 to 6,000 m [10,000 to 20,000 feet]), generally adjacent to a continent. These submarine surfaces vary in depth only from 10 to 100 cm per kilometre of horizontal distance.

2021年3月8日 · Abyssal plains are made up of silt, sediment and sand that blankets the original ocean floor, forming a smooth, flat plain. Though plains usually bring to mind wide open pastures, prairies, deserts or grasslands, there is another type of plain that we don’t as often think of, and that is the abyssal plain.

2024年12月13日 · The abyssal plain is a vast, flat area of the ocean floor, typically found at depths of 3,000 to 6,000 meters. It is a unique and largely unexplored ecosystem that plays a crucial role in the Earth’s marine ecosystem.

2020年5月1日 · At depths of over 10,000 feet and covering 70% of the ocean floor, abyssal plains are the largest habitat on earth. Sunlight does not penetrate to the sea floor, making these deep, dark ecosystems less productive than those along the continental shelf. But despite their name, these “plains” are not uniformly flat.

2024年9月11日 · Abyssal plains are vast, flat, underwater areas that form one of the largest portions of the world's ocean floor. They are located at depths of 3,000 to 6,000 meters below the ocean surface. These plains cover more than 50% of the Earth's surface, making them one of the most extensive geological features on our planet.

An abyssal plain is a vast, flat area of the ocean floor that lies at depths between 3,000 to 6,000 meters (about 10,000 to 20,000 feet) below sea level. These plains are among the flattest, smoothest regions on Earth, formed by sedimentation of fine particles over millions of years and often covered by a thick layer of sediments.

2022年1月20日 · 深海底部坡度小于1/1000的平坦区域。 为大洋盆地重要组成单元，是地球表面最平坦部分。 可延展达几百至几千千米。

2021年2月25日 · The abyssal zone, or the abyss, is the seafloor and water column from 3,000 to 6,500 meters (9,842 to 21,325 feet) depth, where sunlight doesn’t penetrate.