The Kerguelen LIP covered Шаблон:Convert making it the second largest LIP on Earth (after the Ontong Java Plateau in the Pacific).[3] Both these enormous LIPs reaches Шаблон:Convert above the surrounding ocean floor and have a crustal thickness of Шаблон:Convert (compared to oceanic crust typically around Шаблон:Convert thick.)[4]
The Broken Ridge and Kerguelen Plateau are now separated by Шаблон:Convert. When they broke-up, the southern flank of Broken Ridge was uplifted some Шаблон:Convert and reached above sea level.[4]
The Kerguelen LIP has a long and complicated history, however, and is probably the least "typical" of all LIPs.[3]
Rocks from both the Broken Ridge and the Kerguelen Plateau contain a continental component or "fingerprint". In the Early Cretaceous, the Kerguelen hotspot was split into several diapirs of various sizes, composition, and ascent rates. These separate diapirs created the Bunbury Basalt, the Southern Kerguelen Plateau, the Rajmahal Traps/Indian lamprophyres, Antarctic lamprophyres, and the Central Kerguelen Plateau/Broken Ridge. In the late Cretaceous, activity in the mantle slowed and the Kerguelen hotspot was reduced to a single plume which created the Ninety East Ridge.[2]
120-95 Ma when the Southern and Central Kerguelen Plateau formed together with the Broken Ridge, the Kerguelen hotspot produced Шаблон:Convert/year, but 95-25 Ma the output decreased to Шаблон:Convert.[5]
