| Derwent Hunter Guyot | |
| Depth: | [1] |
| Location: | To the east of the coast of New South Wales, Australia |
| Group: | Tasmantid Seamount Chain |
| Coordinates: | -30.8658°N 156.1892°W |
| Type: | Guyot |
| Discovered: | Named from the Australian schooner "Derwent Hunter" that discovered it in 1958 |
| Pushpin Map: | Pacific Ocean |
| Map Size: | 250px |
The Derwent Hunter Guyot is an extinct volcanic seamount of the Tasmantid Seamount Chain.
It is a basaltic volcano that erupted between 12,400,000 and 15,400,000 years ago,[2] with survey data that indicates it rises about 4000m (13,000feet) above the local sea floor to a minimum depth of 323m (1,060feet).[1] The sediments deposited on top of the alkali olivine basalt[2] originate from the early Middle Miocene.[3] The Derwent Hunter Guyot appears to be double peaked.[4] It was discovered in 1958[1] and described as a seamount in 1961.[5]
The waters above it are incorporated in the Central Eastern Marine Park, an Australian marine park.[6]