Dynamics of a seafloor-spreading episode at the East Pacific Rise

  title={Dynamics of a seafloor-spreading episode at the East Pacific Rise},
  author={Yen Joe Tan and M. Tolstoy and Felix Waldhauser and William S. D. Wilcock},
Seafloor spreading is largely unobserved because 98 per cent of the global mid-ocean-ridge system is below the ocean surface. Our understanding of the dynamic processes that control seafloor spreading is thus inferred largely from geophysical observations of spreading events on land at Afar in East Africa and Iceland. However, these are slow-spreading centres influenced by mantle plumes. The roles of magma pressure and tectonic stress in the development of seafloor spreading are still unclear… 

Quantification of Eruption Dynamics on the North Rift at Axial Seamount, Juan de Fuca Ridge

Quantifying eruption dynamics in submarine environments is challenging. During the 2015 eruption of Axial Seamount, the formation of hummocky mounds along the north rift was accompanied by tens of

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Seismic constraints on caldera dynamics from the 2015 Axial Seamount eruption

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Quanti fi cation of Eruption Dynamics on the North Rift at Axial Seamount, Juan de Fuca Ridge

Quantifying eruption dynamics in submarine environments is challenging. During the 2015 eruption of Axial Seamount, the formation of hummocky mounds along the north rift was accompanied by tens of

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Detailed images of the midcrustal magmatic system beneath the East Pacific Rise (8°20′–10°10′N) are obtained from 2‐D and 3‐D‐swath processing of along axis seismic data and are used to characterize

Explosive processes during the 2015 eruption of Axial Seamount, as recorded by seafloor hydrophones

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A Sea-Floor Spreading Event Captured by Seismometers

A gradual ramp-up in activity rates since seismic monitoring began at this site in October 2003 suggests that eruptions may be forecast in the fast-spreading environment.

Seismogenic structure and processes associated with magma inflation and hydrothermal circulation beneath the East Pacific Rise at 9°50′N

A dense ocean bottom seismometer array recorded more than 7,300 microearthquakes between October 2003 and April 2004 on the fast spreading East Pacific Rise at 9°50′ N. A previous initial analysis of

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The 2005–2006 eruptions near 9°50′N at the East Pacific Rise (EPR) marked the first observed repeat eruption at a mid‐ocean ridge and provided a unique opportunity to deduce the emplacement dynamics

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The creation of ocean crust by rapid injection of magma at mid-ocean ridges can lead to eruptions of lava onto the seafloor and release of “event plumes,” which are huge volumes of anomalously warm

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Seismic structure of the Iceland mantle plume

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Mid‐ocean ridge eruptions as a climate valve

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