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The Ontong Java Plateau (OJP) is a massive oceanic plateau located in the southwestern Pacific Ocean, north of the Solomon Islands. The OJP was formed around 116 million years ago (Ma), [ 1 ] with a much smaller volcanic event around 90 Ma.
Ontong Java Atoll or Luangiua (formerly Lord Howe Atoll, not to be confused with Lord Howe Island) [2] is an atoll in Solomon Islands, and one of the largest atolls on earth. It is inhabited by a Polynesian community of about 2,400 people, who speak the Ontong Java language .
An oceanic or submarine plateau is a large, relatively flat elevation that is higher than the surrounding relief with one or more relatively steep sides. [ 1 ] There are 184 oceanic plateaus in the world, covering an area of 18,486,600 km 2 (7,137,700 sq mi) or about 5.11% of the oceans. [ 2 ]
The subduction of the Hikurangi Plateau beneath New Zealand and the southern part of the Kermadec Arc has resulted in large volumes of lava and a high density of volcanoes in the arc. The initial Hikurangi-Kermadec collision, however, occurred 250 km (160 mi) to the north where a missing piece of the Ontong Java-Hikurangi-Manihiki LIP has ...
Ontong Java Atoll or Luangiua, one of the largest atolls on earth Ontong Java flying fox (Pteropus howensis), a species of bat in the family Pteropodidae Ontong Java Plateau , a huge underwater oceanic plateau located in the Pacific Ocean, lying north of the Solomon Islands
In 1992, Coffin and Eldholm initially defined the term "large igneous province" as representing a variety of mafic igneous provinces with areal extent greater than 100,000 km 2 that represented "massive crustal emplacements of predominantly mafic (magnesium- and iron-rich) extrusive and intrusive rock, and originated via processes other than 'normal' seafloor spreading."
The Ontong Java-Manihiki-Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. [4] The Ontong Java Plateau today covers an area of 1,860,000 km 2. In the Indian Ocean another LIP began to form at c. 120 Ma, the Kerguelen Plateau–Broken Ridge, together covering 2,300,000 km ...
Chilcotin Plateau Basalts [e] Tortonian: 11.62 * Serravallian: 13.82 * Langhian: 15.97 M. Miocene disruption (14.8–14.5) [f] Columbia River Basalt Group [g] Chilcotin Plateau Basalts [e] Increased Antarctic deep waters Yellowstone hotspot Nördlinger Ries (14.5-14.3) Burdigalian: 20.44 Aquitanian: 23.03 * Shield volcanoes of Ethiopia [h ...