Three-dimensional (3-D) seismic imaging of conduits and radial faults associated with hydrothermal vent complexes (Vøring Basin, Offshore Norway)

Origin and Evolution of the Halo-Volcanic Complex of Dallol: Proto-Volcanism in Northern Afar (Ethiopia)

“…That would have led to the crater collapse and the formation of the top central depression and dyke-like fissures infilled with sulfur rich salt-flows associated to the main geothermal areas of northwest and southeast parts of the rim. Similar structures have been also described in ancient hydrothermal vent complexes (e.g., Jamtveit et al, 2004;Planke et al, 2005;Hansen, 2006;Omosanya et al, 2018). In this sense, the Dallol complex structure could be considered as a dome plus a salt volcano originating from halo-volcanic eruptions superimposed on the former dome stage, both forming part of a hydrothermal vent complex associated with an intrusive magmatic deep system.…”

Concentric Structures and Hydrothermal Venting in the Western Desert, Egypt

“…Several authors have shown that hydrothermal vents are characterized by brecciated mixed sediments with associated high-temperature primary minerals (e.g., Svensen et al, 2006;Polozov et al, 2016;Neumann et al, 2017) and surrounded by the local host rocks. The inward dipping of the strata observed in the CS, has been documented both in field and is seismic profiles intersecting palaeo vents that were triggered by magmatic intrusions in volcanic sedimentary basins Planke et al, 2005;Svensen et al, 2009;Kjoberg et al, 2017;Omosanya et al, 2018).…”

Pressure Controlled Permeability in a Conduit Filled with Fractured Hydrothermal Breccia Reconstructed from Ballistics from Whakaari (White Island), New Zealand

“…Past studies of magmatic conduits and breccias reveal insights into magma flow, outgassing, and fragmentation processes [4][5][6][7]. Detailed studies of hydrothermal breccia filled conduits, however, are dispersed between the maar diatreme, hydrothermal mineralization, and petroleum basin literature [2,[8][9][10][11] and are rarely applied to eruption models.…”