The Tuscaloosa Seamount is an undersea mountain in the Hawaiian archipelago. It is about 100 kilometres (62 mi) northeast of the island Oʻahu.
| Tuscaloosa Seamount | |
|---|---|
| Highest point | |
| Elevation | -2765 |
| Coordinates | 22°4′0″N 157°5′0″W / 22.06667°N 157.08333°W |
| Geography | |
| Location | Pacific |
| Region | US-HI (Hawaii) |
| Geology | |
| Age of rock | 1.5 to 2 ma |
| Mountain type | hyaloclastite |
Tuscaloosa Seamount is composed of volcanic rock, but in contrast to the overwhelming majority of seamounts, it is not a submarine volcano.[1] It is a huge block of rocks that broke off about two million years ago at the Nuʻuanu submarine landslide when the volcano Koʻolau collapsed.[2]
The Tuscaloosa Seamount is 30 km (19 mi) long and 17 km (11 mi) wide.[3] Its shallow summit rises 1.8 kilometres (1.1 mi) across the sea bottom but is 2,756 metres (9,042 ft) below sea level.[4]
References edit
- ^ Barbara H. Keating; William J. McGuire (2004). "Instability and Structural Failure at Volcanic Ocean Islands and the Climate Change Dimension". Advances in Geophysics. 47: 176–272. doi:10.1016/S0065-2687(04)47004-6. ISBN 9780120188475.
- ^ Kasey White (May 2002). "Scientists Find Evidence of Cataclysmic Volcanic Event on Oahu". Ocean Drilling Program, Texas A&M University. Retrieved 2012-10-24.
- ^ James Gregory Moore; David A. Clague; Robin T. Holcomb; Peter W. Lipman; William R. Normark; Michael E. Torresan (1989). "Prodigious Submarine Landslides on the Hawaiian Ridge" (PDF). Journal of Geophysical Research. 94 (B12): 17465–17484. doi:10.1029/JB094iB12p17465. S2CID 128904751. Archived from the original (PDF) on 2020-11-16.
- ^ Stephen A. Langford; Richard C. Brill (1972). "Giant Submarine Landslides on the Hawaiian Ridge: A Rebuttal" (PDF). Pacific Science. 26: 254–258.