Kurz 14N Mid-Atlantis Ridge

Ship

R/V Atlantis

Vehicles

AUV Sentry, HOV Alvin

Cruise Party

Joshua Curtice: Principal Investigator
Organization Name USA
+1 508 289 2618
jcurtice@whoi.edu

Mark Kurz: Chief Scientist, Principal Investigator
Woods Hole Oceanographic Institution Clark 421B, MS#25 Woods Hole, Ma. USA 02543
+1 508 289 2888
mkurz@whoi.edu

Eric Mittelstaedt: Principal Investigator, Chief Scientist
University of Idaho 875 Perimeter Dr. MS 3022 Moscow, Idaho USA 83844
+1 208 885 2045
emittelstaedt@uidaho.edu

Adam Soule: Principal Investigator
Organization Name USA
+1 508 289 3213
ssoule@whoi.edu

Dorsey Wanless: Principal Investigator
Organization Name USA
+1 508 289 3922
dwanless@whoi.edu

Departure: Charleston, SC on Mar 1, 2016

Arrival: Barbados on Apr 11, 2016

Mobilization Date: Feb 25, 2016

Demobilization Date: Apr 22, 2016

Supporting documentation:

»kurz-14N.pdf

Operations Area: 13-15N Mid-Atlantic Ridge at 45W long

Lat/Lon: 14° 0.0′ N / 45° 0.0′ W

Depth Range: 4500 / max (m)

Will the vessel be operating within 200 NM of a foreign country? n/a
Are visas or special travel documents required? no

Science objectives

      The primary objective of this proposal is to collect a suite of glassy volcanic rocks from the Mid Atlantic Ridge, measure the full suite of volatiles, major elements, trace elements, and isotopes, and evaluate their geochemical variability with respect to their geological setting.  An ROV or submersible is required for this project because the seafloor eruption style will be critical in relating the samples to local and regional tectonics.  We propose a field program to the MAR between 13°30’ and 14°05’N that makes use of existing sonar data between 13° 15’N and 13° 50’N (Mallows and Searle, 2012), the Alvin, Sentry and the WHOI TowCam.  The use of Alvin will allow us to collect well located samples and to determine if vesicularity and volatile abundances relate to their geologic setting and at what scale (i.e. segment wide, 'tectonic' vs. 'magmatic', adjacent to detachment faults, etc.).  This will include sampling on the segment scale (e.g., magmatic segment center and detachment faulted terrain), and the local scale related to seamounts/source vents, lava flow size and origin, and proximity to detachment faults.  Existing data from dredge samples do not allow evaluation of these factors.  The use of Alvin will also allow controlled sampling of glassy samples, not just with respect to geologic setting, but to ensure preservation of the volatiles.  Selected glassy samples will be collected in anaerobic sea-floor samplers that retain (some) sea floor pressure and temperature, thus minimize air contamination (Kurz and Curtice, 2009), reducing the reliance on post-analysis corrections.   These vessels will also permit collection of any gas exsolved at the surface because the samples can be kept immersed, allowing them to warm slowly (exsolved gases will then be collected in copper tubes).  This will reduce the uncertainties associated with estimates of “pre-degassing” volatile contents. In addition to existing sonar data, we will use  AUV Sentry make local high-resolution bathymetry and sonar maps north of 13Ëš50 (i.e., the magmatic segment) to define the geologic context of those samples. TowCam will be used for reconnaissance imaging and characterization to help define Alvin and Sentry dive targets.

Science Activities

Alvin diving- includes observations, imaging (video and still imaging), mapping, rock sampling, push cores, possible small Niskin water sampling, and Ti-major samplers for possible use if hyx vents are encountered
Sentry AUV diving (mostly night time)
TowCam night time surveys
shipboard multibeam surveys
possible dredging as a contingency
possible CTD as a contingency (to be ready to use but stored on 01 deck)
rock processing in main lab
rock sawing in wet lab

Pre-cruise planning meeting: Teleconference/Visit WHOI

CoPIs from WHOI, Boise State and U. of Idaho
Media personnel on board: Video, Writer
possible outreach, TBD

Stations:

Funding Agency: NSF #OCE-1259218

- added NSF #OCE-1259218 on Nov 5, 2015 12:18 PM by
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R/V Atlantis

Shipboard Equipment

12 kHz Pinger for Wire Use
ADCP 75 kHz
Bathymetry System 12 kHz
Bathymetry System 3.5 kHz
Deionized Water System
Fume Hood
Gravimeter
Multibeam
Navigation - Heading
Navigation - Position
Relay Transponder for Wire Use
Sippican XBT System (Mark 21)
Towed Magnetometer
Transponder Navigation - Sonardyne USBL

Shipboard Communication

Basic Internet access via HiSeasNet
Is there a need to transfer data to shore on a regular basis?
Is there an expectation to use Skype or any other real-time video conference program?

CTD/Water Sampling

911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
Seapoint STM turbidity sensor

Critical CTD Sensors: 

Sediment Sampling

Rock dredges

Sample Storage

Freezer -70°C 25 cu. ft.
Freezer -70°C 3.2 cu. ft. ea.
Refrigerator 8.6 cu. ft.


Storage Notes: -70C freezers for possible biological collections

Navigation

Will you be using Long Base Line (LBL) navigation? no

Will you be using Ultra-short baseline (USBL) navigation for other than Alvin operations? no

Navigation

GPS
USBL

Navigation Notes: Navigation USBL beacons needed for TowCam and elevators
Alvin and Sentry require USBL
USBL system on Atlantis needs to be calibrated and serviced before the cruise

Winches

CTD Winch with .322" Electro-mechanical wire
Hydro Winch with .25" hydro wire
Trawl Winch with 9/16th trawl wire

Winch Notes: CTD winch will be used for TowCam tows, with real-time DataLink capability, 1/4 knot speed
trawl winch will be used for dredging if required

Wire use and application

CTD Winch with .322" Electro-mechanical wire
Trawl Winch with 9/16th trawl wire


Wire Notes: CTD winch will be used for TowCam tows, with real-time DataLink capability, 1/4 knot speed
trawl winch will be used for dredging if required

Slip ring required? no	Number of conductors:
Non-standard wire required? no	Type:
Traction winch required? no	Describe:

Other Science Vans:

Other Science Vans:

Science Van 1
Type/size: Sentry vehicle Van		Location: 01 deck
Water: no		Power:no
Science Van 2
Type/size: Sentry Tool Van		Location: Main Deck port side
Water: no		Power:

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: no	Type:
Cruise Specific Science Winch Required: no	Type:
Nets Required: no	Type:

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? yes

Details: TowCam system
AUV Sentry

Special Requirements

Elecrical Power: yes	Identify: for Sentry
Equipment Handling: yes	Identify: for Sentry
Inter/intraship Communications: no	Identify:
Science Stowage: yes	Identify: rocks and gear R/T WHOI back to WHOI
Water: no	Identify:

Additional Cruise Items/Activities

Explosive Devices: no Portable Air Compressors: no Flammable Gases: no

Small Boat Operations: no SCUBA Diving Operations: no

Hazardous Material

Will hazardous material be utilized? yes

Describe deployment method and quantity:
Sentry Li battery- ask Sentry group
solvents - ethanol
gases in tanks - N2, CO2 (tanks r/t -loaded at WHOI and back to WHOI)

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other):  TowCam and dredging and Sentry AUV ops

Other required equipment and special needs: 

AUV Sentry

Site Survey

Will you provide detailed charts of the work area(s)?  yes
Current Chart(s):
»kurz-14N.pdf


If no, will you need Sentry to generate maps of the work area(s)?  yes

Will you need post-dive maps of the work area generated?  yes

Navigation

Will you be using Long Base Line (LBL) navigation? no

Will you be using Ultra-short baseline (USBL) navigation? yes

Will you be using Doppler/GPS navigation? yes

What type of samples do you expect to collect?

Science Supplied Equipment

Are you supplying equipment to be used with AUV Sentry?  no

Has this equipment been used on Sentry before?  no

Please give a brief description of the equipment, its intended purpose, the cruise # it was last used on if any and its deployment method.

Does this equipment use an external pressure housing?  no

Has the pressure case been tested to the anticipated depth of deployment?  no

Air weight(s) of this equipment?

Water weight(s) of this equipment?

Does the equipment require data or a power interface from the vehicle?
  no

Does the equipment meet the electrical requirements of the Sentry User Manual?  no

Cameras & Video

Digital Still Camera: Color

Additional Information

Brief operations description or comments:

HOV Alvin

Site Survey

Will you provide detailed charts of the work area(s)?  yes
Current Chart(s):


If no, willl you need R/V Atlantis to generate maps of the work area(s)?  no

Will you need post-dive maps of the work area generated?  no

Navigation

Will you be using Long Base Line (LBL) navigation? no

Will you be using Ultra-short baseline (USBL) navigation for other than Alvin operations? yes

Vehicle Equipment

Push corers (12-pack rack)
Search sonar
High temperature probe (0-480°C)
Low temperature probe
Scoop nets
CTD
Small capacity slurp samplers
Large capacity slurp samplers: single-chamber
Bio collection boxes: 12 x 12 x 12
Bio collection boxes: 12 x 12 x 24


What type of samples do you expect to collect?
lava and sediment, possible biology and possible vent fluids

Elevators

Will you be using elevators to transport samples to the surface?  yes
If yes, how many would you anticipate?  6?

Science Supplied Equipment

Are you supplying equipment to be used on HOV Alvin?  yes

Has this equipment been used on Alvin before?  yes

Please give a brief description of the equipment, its intended purpose, the cruise # it was last used on if any and its deployment method.
MISO digital still camera
MISO GoPro camera
anerobic rock samplers (Kurz) made from PVC, used previously on Jason ROV

Does this equipment use an external pressure housing?  yes

Has the pressure housing been tested per Alvin Pressure Test requirements?  yes

Air weight of this equipment? null

Water weight(s) of this equipment?

Does the equipment require a power interface from Alvin?  yes

Voltage required

Power required

Data Interface

Does the equipment meet the electrical requirements of the Alvin User Manual?  yes

Please provide power and comms specifics, wiring diagram, pinout, and wiring harness in advance of the cruise.

Does this equipment require hydraulic inputs from Alvin?  no
Hydraulic schematic of the equipment requirements.

Does this equipment require manipulation?  yes

If yes, please describe how the equipment is to be manipulated:  anerobic rock samplers require manipulation

Will this equipment be deployed off the vehicle?  yes

If yes, please describe how the equipment is intended for deployment:  GoPro camera perhaps on elevator

If yes, will the equipment be disconnected from the vehicle and left in situ?  no

How long will the deployment be? 

Will the equipment be recovered by the same vehicle?  yes

Do you intend to recover any other previously deployed equipment?  no

If yes, please describe this equipment: 

Does this equipment use any glass spheres, ceramic housings or similar (non-metallic materials) for either buoyancy or as pressure housings?  no

Do you require any electronic equipment in the personal sphere? no

Has the computer or control panel been gas tested for use in the personnel sphere?  no

Hazardous Material

Will hazardous material be utilized? no

Additional Information

Brief operations description or comments:

Date Submitted: Dec 18, 2015 9:11 AM