Jannasch, Hans W. et al. (2003): CORK-II; long-term monitoring of fluid chemistry, fluxes, and hydrology in instrumented boreholes at the Costa Rica subduction zone
Leg/Site/Hole:
Related Expeditions:
ODP 170
Identifier:
ID:
2004-014636
Type:
georefid
ID:
10.2973/odp.proc.ir.205.102.2003
Type:
doi
Creator:
Name:
Jannasch, Hans W.
Affiliation:
Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
Role:
author
Name:
Davis, Earl E.
Affiliation:
Universitaet Bremen, Federal Republic of Germany
Role:
author
Name:
Kastner, Miriam
Affiliation:
Ocean Drilling Program, United States
Role:
author
Name:
Morris, Julie D.
Affiliation:
Southampton Oceanography Centre, United Kingdom
Role:
author
Name:
Pettigrew, Thomas L.
Affiliation:
Woods Hole Oceanographic Institution, United States
Role:
author
Name:
Plant, John N.
Affiliation:
Dalhousie University, Canada
Role:
author
Name:
Solomon, Evan A.
Affiliation:
Japan Marine Science and Technology Center, Japan
Role:
author
Name:
Villinger, Heinrich W.
Affiliation:
Scripps Institution of Oceanography, United States
Role:
author
Name:
Wheat, C. Geoffrey
Affiliation:
University of Wyoming, United States
Role:
author
Identification:
Title:
CORK-II; long-term monitoring of fluid chemistry, fluxes, and hydrology in instrumented boreholes at the Costa Rica subduction zone
Year:
2003
Source:
In: Morris, Julie D., Villinger, Heinrich W., Klaus, Adam, Cardace, Dawn M., Chavagnac, Valerie M. C., Clift, Peter D., Haeckel, Matthias, Hisamitsu, Toshio, Kastner, Miriam, Pfender, Marion, Saffer, Demian M., Santelli, Cara, Schramm, Burkhard, Screaton, Elizabeth J., Solomon, Evan A., Strasser, Michael, Thu, Moe Kyaw, Vannucchi, Paola, Nevill, Heather M. (editor), Proceedings of the Ocean Drilling Program, initial reports; fluid flow and subduction fluxes across the Costa Rica convergent margin, implications for the seismogenic zone and subduction factory; covering Leg 205 of the cruises of the drilling vessel JOIDES Resolution; Victoria, Canada, to Balboa, Panama; sites 1253-1255; 2 September-6 November 2002
Publisher:
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
Volume:
205
Issue:
Pages:
Abstract:
Two boreholes were drilled on the Costa Rica subduction zone to study the geochemical fluxes and related processes associated with sediment compaction, dewatering, and alteration. The holes were outfitted with modified CORKs (CORK-IIs) that include instruments capable of fluid sampling and measuring flow rates, temperature, and pressure. Fluids are sampled continuously within the decollement zone and in the uppermost oceanic crust with long-term OsmoSamplers for both dissolved ions and gases. The major advantage of the CORK-II is that samples and data can be retrieved without disrupting the pressurized horizons by temporarily opening them to hydrostatic pressures during instrument exchange. This paper describes the concepts, design, and deployment of CORK-IIs in Holes 1253A and 1255A.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:9.3918 West:-86.1124 East:
-86.1112 South:9.3854
Keywords: Oceanography; Hydrochemistry; boreholes; Central America; CORK-II; Costa Rica; East Pacific; fluctuations; gases; geochemistry; hydrochemistry; instruments; Leg 170; Leg 205; Middle America Trench; monitoring; North Pacific; Northeast Pacific; observatories; Ocean Drilling Program; ocean floors; ODP Site 1253; ODP Site 1255; OsmoSamplers; Pacific Ocean; sampling; sea water; subduction zones;
.