Results 51 to 60 of about 126,680 (250)
Seamounts and oceanic igneous features in the NE Atlantic: a link between plate motions and mantle dynamics [PDF]
, 2016 A new regional compilation of seamount-like oceanic igneous features (SOIFs) in the NE Atlantic points to three distinct oceanic areas of abundant seamount clusters.
Blischke, Anett +4 more
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Geochemistry, Geophysics, GeosystemsPartial melting beneath a mid‐ocean ridge creates a chemically depleted layer in the uppermost mantle. This chemical depletion lowers the density of the lithosphere compared with the unmelted mantle.
M. Morishige
doaj +1 more source
Patterns of Life on the Southern Mid-Atlantic Ridge: Compiling What is Known and Addressing Future Research [PDF]
Oceanography, 2012 The South Atlantic is one of the youngest of all the major oceans. It has prominent topographic features, in particular, the Mid-Atlantic Ridge. This feature largely determines deepwater circulation patterns that connect this ocean to the North Atlantic,
José Angel A. Perez +6 more
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The Prediction, Verification, and Significance of Flank Jets at Mid-Ocean Ridges [PDF]
Oceanography, 2012 One aspect of ocean flow over mid-ocean ridges that has escaped much attention is the capacity of a ridge to convert oscillatory flows into unidirectional flows.
J. William Lavelle +4 more
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Magma genesis by rifting of oceanic lithosphere above anomalous mantle: Terceira Rift, Azores [PDF]
, 2008 [1] The Terceira Rift formed relatively recently (∼1 Ma ago) by rifting of the old oceanic lithosphere of the Azores Plateau and is currently spreading at a rate of 2–4mm/a.
Abouchami, W. +4 more
core +1 more source
Lava Geochemistry as a Probe into Crustal Formation at the East Pacific Rise [PDF]
Oceanography, 2012 Basalt lavas comprise the greatest volume of volcanic rocks on Earth, and most of them erupt along the world's mid-ocean ridges (MORs). These MOR basalts (MORBs) are generally thought to be relatively homogeneous in composition over large segments of the
Michael R. Perfit +8 more
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Age, Depth, and Residual Depth Anomalies in the North Pacific: Implications for Thermal Models of the Lithosphere and Upper Mantle [PDF]
, 1986 We present an empirical basement depth versus age relation for the North Pacific Ocean, based on the statistical treatment of an ocean-wide gridded data set.
Renkin, Miriam K., Sclater, John G.
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Ocean bottom seismic model in the Knipovich Ridge area [PDF]
Polish Polar ResearchThe structure of the oceanic crust generated by the ultraslow-spreading mid-ocean Knipovich Ridge still remains relatively uninvestigated compared to the other North Atlantic spreading ridges further south. The complexity of the Knipovich Ridge, with its
Wojciech Czuba +4 more
doaj +1 more source
Nature Communications, 2022 Uniform magmatic crust formed at the Mid-Atlantic Ridge in the equatorial Atlantic Ocean reveals a two-dimensional mantle upwelling facilitated by the large transform faults and the high concentration of volatiles in the primitive melt in the mantle.
Zhikai Wang, Satish C. Singh
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The age and origin of the central Scotia Sea [PDF]
, 2010 Opening of the Drake Passage gateway between the Pacific and Atlantic oceans has been linked in various ways to Cenozoic climate changes. From the oceanic floor of Drake Passage, the largest of the remaining uncertainties in understanding this opening is
Eagles, Graeme
core +1 more source