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Dorado Outcrop
Vent Sites:
K
A
Activity:
Maximum Temperature:
12
Max Temperature Category:
Latitude:
9.0800
Longitude:
-87.0950
Location on map:
Ocean:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
3000
Tectonic setting:
Host Rock:
basalt-hosted
Notes on Vent Field Description:
Wheat et al. (2017): "... the first samples of spring fluids from Dorado Outcrop, a basaltic edifice on 23 M.y. old seafloor of the Cocos Plate, eastern Pacific Ocean. These samples were collected from the discharge of a cool hydrothermal system (CHS) on a ridge flank, where typical reaction temperatures in the volcanic crust are low (2–20 °C) and fluid residence times are short."; location provided in the database for marker K;
Notes Relevant to Biology:
Hartwell et al. (2018): "...the first biological study of Dorado Outcrop at 3000 m depth, a site of warm crustal fluid discharge. Abundant, muscular and comparatively large benthic octopods brood their eggs in warm discharging fluid."; These sites of fluid discharge do not support animals typical of hydrothermal vents, as the discharging fluids lack the reduced chemicals that sustain chemosynthesis.";
Year and How Discovered (if active, visual confirmation is listed first):
2013 ROV Jason Dive J2-751
Discovery References (text):
Wheat et al. (2017) Cool seafloor hydrothermal springs reveal global geochemical fluxes. Earth and Planetary Science Letters 476, 179-188 http://dx.doi.org/10.1016/j.epsl.2017.07.049;
Other References (text):
Hartwell, A., Voight, J., and Wheat, C.G. (2018) Clusters of deep-sea egg-brooding octopods associated with warm fluid discharge: An ill-fated fragment of a larger, discrete population? Deep-Sea Res. I, 135, 1-8, https://doi.org/10.1016/j.dsr.2018.03.011;
RDF link: