Results 1 to 10 of about 168 (130)
New evidence for the Ontong Java Nui hypothesis [PDF]
Scientific Reports, 2023 The formation of the Ontong Java Nui super oceanic plateau (OJN), which is based on the model that the submarine Ontong Java Plateau (OJP), Manihiki Plateau (MP), and Hikurangi Plateau (HP) were once its contiguous fragments, could have been the largest ...
M. L. G. Tejada +11 more
doaj +2 more sources
Interrelation of the stagnant slab, Ontong Java Plateau, and intraplate volcanism as inferred from seismic tomography [PDF]
Scientific Reports, 2021 We investigated the seismological structure beneath the equatorial Melanesian region, where is tectonically unique because an immense oceanic plateau, a volcanic chain and subduction zones meet. We conducted a multi-frequency P-wave tomography using data
Masayuki Obayashi +9 more
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High Q ScS beneath the Ontong Java Plateau [PDF]
Earth, Planets and Space, 2019 The Ontong Java Plateau (OJP) in the southwest Pacific is the largest oceanic large igneous provinces (LIP) on Earth. Detailed seismic structure of the plateau has not been understood well because of sparse seismic stations.
Daisuke Suetsugu +10 more
doaj +2 more sources
Impact origin for the greater Ontong Java Plateau? [PDF]
Earth and Planetary Science Letters, 2004 Abstract The ∼120 Ma Ontong Java Plateau and neighboring, contemporaneous Nauru, East Mariana, and (probably) Pigafetta basin flood basalts in the western equatorial Pacific Ocean comprise the Earth’s largest flood basalt province. Geophysical, geochemical, and geodynamic evidence from the province are difficult to reconcile with mantle plume models;
Stephanie Ingle
exaly +3 more sources
IODP Expedition 324: Ocean Drilling at Shatsky Rise Gives Clues about Oceanic Plateau Formation [PDF]
Scientific Drilling, 2011 Integrated Ocean Drilling Program (IODP) Expedition 324 cored Shatsky Rise at five sites (U1346–U1350) to study processes of oceanic plateau formation and evolution.
W. W. Sager +3 more
doaj +3 more sources
Phreatomagmatic eruptions on the Ontong Java Plateau: chemical and isotopic relationship to Ontong Java Plateau basalts [PDF]
Geological Society, London, Special Publications, 2004 Abstract The compositions of glass clasts in volcaniclastic rocks recovered from drilling at Site 1184 on the eastern salient of the Ontong Java Plateau (OJP) are investigated using microbeam analytical methods for major, minor and trace elements.
Rosalind V. White +4 more
openaire +1 more source
Geophysical Research Letters, 2022 In this study, we for the first time applied a joint geodynamic‐geophysical inversion approach to oceanic plateau subduction models, and compared the subduction style and corresponding topography and Bouguer gravity of two representative subduction ...
Hao Dong +9 more
doaj +1 more source
Intrabasement reflections of the Ontong Java Plateau: Implications for plateau construction [PDF]
Geochemistry, Geophysics, Geosystems, 2008 The Early Cretaceous Ontong Java Plateau (OJP) in the western equatorial Pacific, Earth's most voluminous large igneous province (LIP), is characterized by intrabasement seismic reflections. To investigate the nature of such reflections, we have analyzed new and all older multichannel seismic (MCS) reflection data from the OJP using an instantaneous ...
Inoue, H. +4 more
openaire +3 more sources
The Geological and Tectonic Evolution of Feni, Papua New Guinea
Geosciences, 2023 Feni is located at the southeastern end of the NW-trending Tabar–Lihir–Tanga–Feni (TLTF) volcanic island chain, in northeastern Papua New Guinea.
Olive L. Ponyalou +2 more
doaj +1 more source
Climate variability and ocean fertility during the Aptian Stage [PDF]
Climate of the Past, 2015 Several studies have been conducted to reconstruct temperature variations across the Aptian Stage, particularly during early Aptian Oceanic Anoxic Event (OAE) 1a.
C. Bottini +5 more
doaj +1 more source