Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +6 more sources
Mid-Ocean Ridge and Storm Enhanced Mixing in the Central South Atlantic Thermocline
We investigate the spatial distribution of diapycnal mixing and its drivers in the central South Atlantic thermocline between the Rio-Grande Rise to the Mid-Atlantic Ridge.
Jingxuan Wei +2 more
doaj +1 more source
Estimates of the mean circulation in the deep (>2,000m) layer of the Eastern North Atlantic [PDF]
A total of 131 current meter records of between 6 and 24 month duration are analysed to describe the deep flow field of the eastern North Atlantic from 19° to 54°N and from the Continental Slope to the Mid Atlantic Ridge.
Dickson, R. R. +3 more
core +1 more source
The permeability, connectivity, and reactivity of fluid reservoirs in oceanic crust are poorly constrained, yet these reservoirs are pathways for about a quarter of the Earth's heat loss, and seawater‐rock exchange within them impact ocean chemical ...
C. Geoffrey Wheat +6 more
doaj +1 more source
A joint geochemical–geophysical record of time-dependent mantle convection south of Iceland [PDF]
The North Atlantic V-Shaped Ridges (VSRs) provide a spatially extensive and clear record of unsteady mantle convective circulation over >40 My>40 My.
S.M. Jones +75 more
core +5 more sources
The Energetic 2022 Seismic Unrest Related to Magma Intrusion at the North Mid‐Atlantic Ridge
A seismic swarm affected the 53.3°–54.3° Latitude North section of the Mid‐Atlantic Ridge from 26 September to 10 December 2022. We rely on regional, teleseismic and array data to relocate 61 hypocenters and derive 77 moment tensors.
S. Cesca +3 more
doaj +1 more source
South Scandinavian joints and Alpine/Atlantic-ridge tectonics
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
doaj +1 more source
Cephalopods of the northern Mid-Atlantic Ridge [PDF]
A two-leg cruise of R/V G. O. Sars in summer of 2004 along the Mid-Atlantic Ridge explored the diversity and distribution patterns of pelagic and non-hydrothermal bottom communities in the vicinity of the northern Mid-Atlantic Ridge.
Piatkowski, Uwe +2 more
core +1 more source
Mantle thermal pulses below the Mid-Atlantic Ridge and temporal variations in the formation of oceanic lithosphere [PDF]
A 20-Myr record of creation of oceanic lithosphere is exposed along a segment of the central Mid-Atlantic Ridge on an uplifted sliver of lithosphere. The degree of melting of the mantle that is upwelling below the ridge, estimated from the chemistry of ...
AC Lasaga +47 more
core +2 more sources
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
doaj +1 more source

