Results 21 to 30 of about 113,704 (248)
South Scandinavian joints and Alpine/Atlantic-ridge tectonics
Annals of Geophysics, 2000 Field observations and studies of the joints and dykes in an area shed light on its younger tectonic development; thus, joint orientations measured in Southern Sweden and in Norway have been statistically studied and compared regarding their tectonic ...
A. E. Scheidegger, F. F. Zheng
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Lebensspuren of the Bathyal Mid-Atlantic Ridge [PDF]
Deep Sea Research Part II: Topical Studies in Oceanography, 2013 The extent of megafaunal bioturbation was characterised at flat sedimented sites on the Mid-Atlantic Ridge (MAR) at 2500 m depth. This study investigated the properties of and spatial variation in surficial bioturbation at the MAR. Lebensspuren assemblages were assessed at four superstations either side of the MAR and in two different surface ...
Bell, James B. +2 more
openaire +4 more sources
Geophysical Research Letters, 2019 In the South Atlantic, a reorganization of the Mid‐Atlantic Ridge began before anomaly C34n (83.6 Ma) and ended before anomaly C30n (66.4 Ma), complicating tectonics of Rio Grande Rise and older Walvis Ridge (WR), which formed together at the Mid ...
S. Thoram, W. W. Sager, W. Jokat
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Changes in water mass composition and circulation in the central Arctic Ocean between 2011 and 2021 inferred from tracer observations [PDF]
Ocean ScienceThe Arctic Ocean is changing rapidly and Atlantic Water circulation plays a key role in the warming, sea-ice decline, and ecosystem changes observed in the Arctic.
A.-M. Wefing +9 more
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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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On some rare Oplophoridae (Caridea, Decapoda) from the South Mid-Atlantic Ridge
Latin American Journal of Aquatic Research, 2013 The Mid-Atlantic Ridge (MAR) divides the Atlantic Ocean longitudinally into two halves, each with a series of major basins delimited by secondary, more or less transverse ridges.
Irene Cardoso
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Global variation of seismic energy release with oceanic lithosphere age
Scientific Reports, 2021 Variations in Mid Ocean Ridge seismicity with age provide a new tool to understand the thermal evolution of the oceanic lithosphere. The sum of seismic energy released by earthquakes during a time, and for an area, is proportional to its lithospheric age.
Nicolás Pinzón, Carlos A. Vargas
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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
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Communications Earth & Environment, 2021 Bottom water renewal on the western flank of the mid-Atlantic Ridge is driven by rapid intrusion of cold, dense water enabled by gradual warming due to geothermal heat flux and diapycnal mixing, as revealed by six-year observational records.
Keir Becker +4 more
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Nonchondritic 142Nd in suboceanic mantle peridotites [PDF]
, 2011 The discovery that several solid Earth reservoirs have a superchondritic 142Nd/144Nd ratio led to the hypothesis that either the bulk silicate Earth is not chondritic or that a subchondritic reservoir lies hidden somewhere within the Earth's interior ...
Bonatti, Enrico +2 more
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