Lord Howe Rise

The Lord Howe threshold is a rising submarines plateau in the southwestern part of the Pacific. It extends to the southwest of the island of New Caledonia to the Challenger Plateau, west of New Zealand. To the west lies the Tasman Basin and to the east, the New Caledonia Basin. The Lord Howe threshold has an area of ​​approximately 1.5 million square kilometers and is on average in 1500 to 2500 meters depth. It is part of the prehistoric continent Zealandia, which was connected with Australia and Antarctica and above 60 to 130 million years ago, sank at the drifting apart of the two continents. Therefore, this plateau of continental crust. An oceanic ridge, which was formed 60 to 80 million years ago, let the Lord Howe threshold of eastern Australia drift. Today, it is located about 800 km away.

The Lord Howe Island and Ball's Pyramid in the east of the plateau are surveys that protrude above the sea level. More underwater mountains that arose in the Miocene, form the Lord Howe chain. Also lie in this region, the Elizabeth Reef and Middleton Reef, both of which belong to the Coral Sea off Australia.

Weblink

• Lord Howe Rise. Geoscience Australia

• Submarine back
• Pacific Ocean