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AXIAL 3D
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2019
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Marcus Langseth
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Project Title: |
Collaborative Research: Axial 3-D - Exploring the linkages between complex magma chamber structure, caldera dynamics, fluid pathways and hydrothermal venting. |
Project Status: |
Submitted |
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Principal Investigator: |
Adrien Arnulf, UTIG |
Project Institution: |
UTIG |
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Project ID: |
105456 |
Version #: |
10 |
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Date Submitted: |
8/10/2016 4:59:00 PM |
Created By: |
Adrien Arnulf |
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Date Last Modified: |
6/27/2018 11:10:00 AM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/MGG - 1658199 - Funded |
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Summary of Field Work: |
In order to investigate the physical state, distribution, shape and connectivity of magma volumes, fracture networks and fluid pathways, we propose to collect a 3D seismic reflection dataset in a 40 by 17 km box, and eight transects of 2D long-offset seismic data over Axial volcano at the intersection of the JDFR and the Cobb-Eickelberg (CE) hotspot chain. |
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Summary of Facility Requirements: |
We are requesting the R/V Marcus Langseth for a 33 days-long active-source seismic survey in Summer 2018. First, we will deploy a 3-D seismic array, towing four 6-km-long streamers separated by 150 m, with two flip-flopping source arrays (tuned ~3300 cu. in. each) separated by 75 m. Then, we will deploy a single 15-km-long streamer for several 2-D transects. |
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Summary of other requirements and comments: |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1008825 |
Created By: |
Adrien Arnulf |
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Date Last Modified: |
2/28/2018 4:36:00 PM |
Date Submitted: |
8/11/2016 6:17:00 PM |
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Year: |
2019
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Ship/Facility: |
Marcus Langseth
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Optimum Start Date:
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7/1/2019 |
Dates to Avoid: |
Mid october to late May should be avoided due to weather conditions |
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Earliest Start Date: |
6/1/2019 |
Multi-Ship Op: |
No |
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Latest Start Date: |
9/1/2019 |
Other Ship(s): |
. |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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31 |
1 |
1 |
2 |
35 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
. |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
. |
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Short Description of Op Area
for use in schedules: |
Axial Seamount |
| Description of Op Area: |
Axial Seamount is a basaltic volcano located at the intersection of the Juan de Fuca Ridge and the Cobb hotspot chain. |
| Op Area Size/Dia.: |
21.5983 by 9.17927 nm |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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45.817399° N
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129.739973° W
map
45° 49.04394' N
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129° 44.39838' W
map
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Ending
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46.077207° N
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130.161858° W
map
46° 4.63242' N
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130° 9.71148' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
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 Important Info on Foreign Research Clearances
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Are you or any member in your science party bringing in any science equipment items which are regulated for export by the International Traffic in Arms Regulations (ITAR) and/or the Export Administration Regulations (EAR)?
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No |
If yes, have you applied for the necessary permits through your export control office?
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No |
| Questions about ITAR/EAR regulations?
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Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.) |
. |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Astoria, OR, USA |
None, |
Astoria, OR, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
We request Astoria, Oregon, USA to be our start and end port due to its proximity to Axial seamount. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Adrien Arnulf, UTIG |
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# in Science Party |
29 |
# of different science teams |
1 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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13 |
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Explanation of Science Party Requirements and Technician Requirements |
13 technicians are needed to deploy, operate and recover an array of four 6-km-long streamers on-board the R/V M. Langseth.
A group of 16 scientists, including the PIs, grad students and early career scientists is typical on a 3D seismic survey. |
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 Dynamic Positioning | ADCP |  Multibeam | Seismic |
| Dredging/Coring/Large Dia. Trawl Wire | Stern A-frame | Fiber Optic (.681) | 0.680 Coax Wire |
| SCUBA Diving | Radioisotope use - briefly describe | NO Radioisotope use/Natural level work | Other Operator Provided Inst. - Describe |
| 0 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
We need the streamer capabilities of the R/V Marcus Langseth in order to acquire two datasets:
_ Our main dataset will be recorded in a 40 x 17 km 3D seismic volume, towing four 6-km-long streamers separated by 150 m, with two flip-flopping source arrays (tuned ~3300 cu. in. each) separated by 75 m.
_ Our second dataset consist in 2D transects recorded using a single 15-km-long streamer.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
, |
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