Oceanic core complex
Seabed geologic feature that forms a long ridge perpendicular to a mid-ocean ridge.
- Oceanic core complex12 related topics
Saint Peter and Saint Paul Archipelago
Group of 15 small islets and rocks in the central equatorial Atlantic Ocean.
Group of 15 small islets and rocks in the central equatorial Atlantic Ocean.
The islets expose serpentinized abyssal mantle peridotite and kaersutite-bearing ultramafic mylonite atop the world's highest and yet only second largest megamullion (after the Parece Vela megamullion under Okinotorishima in the Pacific Ocean).
Detachment fault
Detachment faults have been found on the sea floor close to divergent plate boundaries characterised by a limited supply of upwelling magma, such as the Southwest Indian Ridge.
Detachment faults have been found on the sea floor close to divergent plate boundaries characterised by a limited supply of upwelling magma, such as the Southwest Indian Ridge.
These detachment faults are associated with the development of oceanic core complex structures.
Southwest Indian Ridge
Mid-ocean ridge located along the floors of the south-west Indian Ocean and south-east Atlantic Ocean.
Mid-ocean ridge located along the floors of the south-west Indian Ocean and south-east Atlantic Ocean.
These flanks are rounded and smooth and lack the corrugated pattern associated with oceanic core complexes.
Godzilla Megamullion
The Godzilla Megamullion (ゴジラ・メガムリオン) is an undersea Japanese megamullion, or oceanic core complex, 600 km south-east of the island of Okinotorishima in the Philippine Sea.
Okinotorishima
Coral reef with two rocks enlarged with tetrapod-cement structures.
Coral reef with two rocks enlarged with tetrapod-cement structures.
The Parece Vela Basin contains the longest megamullion in the world.
Godzilla (franchise)
Japanese media franchise created and owned by Toho Co., Ltd, centered on the fictional kaiju character Godzilla.
Japanese media franchise created and owned by Toho Co., Ltd, centered on the fictional kaiju character Godzilla.
The largest megamullion, located 600 kilometres to the south-east of Okinotorishima, the southernmost Japanese island, is named the Godzilla Megamullion.
Atlantis Massif
Prominent undersea massif in the North Atlantic Ocean.
Prominent undersea massif in the North Atlantic Ocean.
The central dome is corrugated and striated in a way that is representative of an exposed ultramafic oceanic core complex.
Lost City Hydrothermal Field
Area of marine alkaline hydrothermal vents located on the Atlantis Massif at the intersection between the Mid-Atlantic Ridge and the Atlantis Transform Fault, in the Atlantic Ocean.
Area of marine alkaline hydrothermal vents located on the Atlantis Massif at the intersection between the Mid-Atlantic Ridge and the Atlantis Transform Fault, in the Atlantic Ocean.
The massif itself may have originated in a similar manner to many other ocean core complexes.
Fifteen-Twenty Fracture Zone
Fracture zone located on the Mid-Atlantic Ridge (MAR) in the central Atlantic Ocean between 14–16°N.
Fracture zone located on the Mid-Atlantic Ridge (MAR) in the central Atlantic Ocean between 14–16°N.
Corrugated surfaces known as megamullions or oceanic core complexes measure 25 km along-axis and 10–15 km across.
Kane Fracture Zone
Medium-offset transform fault zone located on the Mid-Atlantic Ridge .
Medium-offset transform fault zone located on the Mid-Atlantic Ridge .
It lies just to the north of the Kane Megamullion, an oceanic core complex that forms the footwall of a long-lived low-angle detachment fault.