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    Space and time variations in crustal stress using microearthquake source information from South Iceland Seismic zone
    Reynir BöðvarssonBjörn LundAri Tryggvason
    Space and time variations in crustal stress using microearthquake source information from South Iceland Seismic zone
    Microearthquake
    Citations (0)
    Crustal Structure of the Greenland‐Iceland Ridge from Joint Refraction and Reflection Seismic Tomography
    Journal of Geophysical Research Solid Earth (2020)
    Xiaoyu YuanJun KorenagaW. Steven HolbrookP. B. Kelemen
    Abstract We report a reanalysis of active‐source wide‐angle seismic data collected along the Greenland‐Iceland Ridge during the 1996 Seismic Investigation of the Greenland Margin (SIGMA) experiment. Interpreting the crustal structure of volcanic rifted margins has suffered from nonuniqueness because thick crust at the continent‐ocean transition may not be totally of igneous origin. In this regard, the Greenland‐Iceland Ridge presents a unique opportunity because, together with the Faroe‐Iceland Ridge, it is generally considered to constitute the Iceland hotspot track, and as such, the bulk of its crust may be considered to be of igneous origin. From 15 ocean‐bottom instruments deployed along a 290‐km‐long refraction transect, we collect 5,383 P g and 1,118 P m P travel times, and we use joint refraction and reflection seismic tomography with adaptive importance sampling to invert them to construct a two‐dimensional compressional wave speed ( V p ) model across the Greenland‐Iceland Ridge. Based on the covariation of crustal thickness and V p , the western part of the transect may be almost entirely continental. Even the eastern part could include a significant fraction of preexisting continental crust. When considered together with the seismic structure of the Icelandic crust and its geochemical characteristics, our results suggest that the putative Iceland mantle plume could be considerably weaker than commonly assumed.
    Seismic Tomography
    Continental Margin
    Citations (21)
    Crustal tomography of South-Eastern Alps
    Leonardo ColavittiLara TiberiGiovanni CostaGualtiero Böhm
    Seismic Tomography
    Citations (0)
    Joint pre-stack depth migration and travel-time tomography applied to a deep seismic profile across the northern Barents Sea igneous province
    EGUGA (2015)
    Alexander N. MinakovJan Inge FaleideT. S. SakulinaN.A. KrupnovaNikolai Dergunov
    Seismic Tomography
    Citations (0)
    In situ seismic velocity changes in Southern Iceland
    EGU General Assembly Conference Abstracts (2017)
    Ingi Th. BjarnasonWilliam MenkeBergþóra S. ÞorbjarnardóttirEinar KjartanssonGunnar B. Guðmundsson
    Seismic velocity
    Citations (0)
    3-D seismic tomographic modelling of the crustal structure of northwestern Svalbard based on deep seismic soundings
    Geophysical Journal International (2016)
    Wojciech Czuba
    Seismic Tomography
    Citations (1)
    3D crustal seismic velocity model for the Gulf of Cadiz and adjacent areas (SW Iberia margin) based on seismic reflection and refraction profiles
    EGUGA (2016)
    Lucía LozanoJuan Vicente CantavellaJaime BarcoMarta CarranzaElisa Burforn
    Reflection
    Seismic refraction
    Margin (machine learning)
    Seismic velocity
    Citations (1)
    Geology of the East Greenland Shelf
    Springer eBooks (1984)
    Hans Christian Larsen
    Reflection
    Citations (73)
    Structural features from seismic tomography on Reykjanes, SW Iceland
    Philippe JoussetKristján ÁgústssonA. VerdelHanna BlanckSteven Franke
    Seismic Tomography
    Citations (0)
    P-wave tomography beneath Greenland and surrounding regions
    Genti ToyokuniTakaya MatsunoDapeng Zhao
    Citations (0)