NEPTUNE Canada

Endeavour


Map of the Endeavour cable, study site, and instrument configurations. (Click to enlarge. See the map archive for previous deployments.)

 

Endeavour Mid-ocean Ridge is an exciting study location because it is a place where new volcanic seafloor is constantly created at the spreading boundary between the Juan de Fuca and Pacific plates. The region (approximately 300 km off the British Columbia coast), has been the site of intensive investigation for more than 20 years.

NEPTUNE Canada's real-time monitoring capability will benefit both ongoing and new experiments. Continuous data gathered before, during and after events like earthquakes and intrusions will be recorded across a coordinated suite of instruments both at the hydrothermal vents on the seafloor and within moorings extending 250m up into the 2,200m water column. A network of seismometers here and at other sites will provide high resolution information on tectonic processes such as earthquakes and strain across the Juan de Fuca plate.


Main Endeavour Vent Field installations. (Click to enlarge. See the map archive for previous deployments.)

 

Endeavour Instruments

Main Endeavour vent field

Mothra hydrothermal vent field (planned)

Regional circulation moorings

Installed: Northeast, Northwest
Planned: South, Southwest

Four regional circulation moorings, each including:

  • ADCP (75 kHz)
  • current meters
  • CTD

A bottom pressure recorder, part of the West Coast "tsunami-meter" experiment, is also positioned near the northeast regional circulation mooring.

Seismicity study site (planned)

Seismometer network

In addition to this seismicity study site, seismometers will be installed across the Endeavour study area:

Short-period seismometer locations
  • main Endeavour vent field
  • near the northeast regional circulation mooring
Standard seismometer locations
  • Mothra vent field
  • approximately 500m east of the node

Tubeworm Community

Tubeworms unfurl their plumes near a hot vent on Endeavour Ridge. Their plumes collect oxygen, carbon dioxide and hydrogen sulfide from the water to support chemosynthetic bacteria living in a specialized organ within their bodies. In turn, the bacteria produce organic compounds on which their host worms feed. Complex hemoglobins color the plumes bright red. These hemoglobins can carry sulfides, which are poisonous to most known life forms.

NEPTUNE Canada's cameras and instruments will allow scientists to study these fascinating creatures as never before.