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Seismic structure of the Endeavour Segment, Juan de Fuca Ridge; correlations of crustal magma chamber properties with seismicity, faulting, and hydrothermal activity
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ark, Emily M. Van Detrick, Robert S. Canales, Juan Pablo Carbotte, Suzanne Diebold, John B. Harding, Alistair J. Kent, Graham M. Nedimović, Mladen R. Wilcock, William S. D. |
| Copyright Year | 2003 |
| Abstract | Multichannel seismic reflection data collected in July 2002 at the RIDGE2000 Integrated Studies Site at the Endeavour segment, Juan de Fuca Ridge show a high-amplitude, mid-crustal reflector underlying all of the known hydrothermal vent fields at this segment. This reflector, which has been identified with a crustal magma body [Detrick et al., 2002], is found at a two-way travel time of 0.85-1.5 s (1.9-4.0 km) below the seafloor and extends approximately 25 km along axis although it is only 1-2 km wide on the cross-axis lines. The reflector is shallowest (2.5 km depth on the along-axis line) beneath the central, elevated part of the Endeavour segment and deepens toward the segment ends, with a maximum depth of 4 km. The cross axis lines show the mid-crustal reflector dipping from 9 to 50° to the east with the shallowest depths under the ridge axis and greater depths under the eastern flank of the ridge. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://dig.earthsciences.dal.ca/~mladen/abstracts/AGU_2003_VanArk.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
