Spotlight: Axial Seamount
نویسندگان
چکیده
منابع مشابه
Inflation-predictable behavior and co-eruption deformation at Axial Seamount.
Deformation of the ground surface at active volcanoes provides information about magma movements at depth. Improved seafloor deformation measurements between 2011 and 2015 documented a fourfold increase in magma supply and confirmed that Axial Seamount's eruptive behavior is inflation-predictable, probably triggered by a critical level of magmatic pressure. A 2015 eruption was successfully fore...
متن کاملSeismic constraints on caldera dynamics from the 2015 Axial Seamount eruption.
Seismic observations in volcanically active calderas are challenging. A new cabled observatory atop Axial Seamount on the Juan de Fuca ridge allows unprecedented real-time monitoring of a submarine caldera. Beginning on 24 April 2015, the seismic network captured an eruption that culminated in explosive acoustic signals where lava erupted on the seafloor. Extensive seismic activity preceding th...
متن کاملExplosive processes during the 2015 eruption of Axial Seamount, as recorded by seafloor hydrophones
Following the installation of the Ocean Observatories Initiative cabled array, the 2015 eruption of Axial Seamount, Juan de Fuca ridge, became the first submarine eruption to be captured in real time by seafloor seismic and acoustic instruments. This eruption also marked the first instance where the entire eruption cycle of a submarine volcano, from the previous eruption in 2011 to the end of t...
متن کاملMicrobiological characterization of post-eruption “snowblower” vents at Axial Seamount, Juan de Fuca Ridge
Microbial processes within the subseafloor can be examined during the ephemeral and uncommonly observed phenomena known as snowblower venting. Snowblowers are characterized by the large quantity of white floc that is expelled from the seafloor following mid-ocean ridge eruptions. During these eruptions, rapidly cooling lava entrains seawater and hydrothermal fluids enriched in geochemical react...
متن کاملThe Global Seamount Census Oceanography Bathymetric Seamount Studies
aBstr aCt. Seamounts are active or extinct undersea volcanoes with heights exceeding ~ 100 m. They represent a small but significant fraction of the volcanic extrusive budget for oceanic seafloor and their distribution gives information about spatial and temporal variations in intraplate volcanic activity. In addition, they sustain important ecological communities, determine habitats for fish, ...
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ژورنال
عنوان ژورنال: Oceanography
سال: 2010
ISSN: 1042-8275
DOI: 10.5670/oceanog.2010.73