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S. Chile megathrust
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2017
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Marcus Langseth
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Project Title: |
Collaborative Research: Deep imaging of the south-central Chile margin to understand plate boundary development and its control on megathrust slip behavior |
Project Status: |
Submitted |
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Principal Investigator: |
Nathan L. Bangs, UTIG |
Project Institution: |
UTIG |
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Project ID: |
104992 |
Version #: |
2 |
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Date Submitted: |
8/11/2015 7:31:00 PM |
Created By: |
Nathan L. Bangs |
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Date Last Modified: |
6/14/2016 11:37:00 AM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/MGG - 1559293 - Funded |
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Summary of Field Work: |
The project will acquire 4,500 km of 2D seismic reflection data along the south central Chile margin. The goal is to acquire deep penetrating seismic profiles to examine the subduction thrust where it has produced great earthquakes. Along with Multichannel data we will acquire multibeam data along with gravity and magnetics data. |
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Summary of Facility Requirements: |
We will use the long-offset (up to 15 km) seismic system and 6,600 cubic inch source array available on the R/V Langseth. We will also use the hull-mounted multibeam system and gravimeter and magnetometer. |
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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: |
1008019 |
Created By: |
Nathan L. Bangs |
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Date Last Modified: |
3/7/2016 2:36:00 PM |
Date Submitted: |
8/11/2015 7:31:00 PM |
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Year: |
2017
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Ship/Facility: |
Marcus Langseth
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Optimum Start Date:
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12/1/2017 |
Dates to Avoid: |
Acquiring seismic data during the southern summer months will produce noisy, poor results. The weather requires acquisition between mid-November to March. |
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Earliest Start Date: |
11/1/2016 |
Multi-Ship Op: |
No |
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Latest Start Date: |
5/1/2018 |
Other Ship(s): |
N/A |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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30 |
1 |
1 |
2 |
34 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
N/A |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
N/A |
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Short Description of Op Area
for use in schedules: |
S. Cent. Chile |
| Description of Op Area: |
South Central Chile margin between latitudes 28 - 45 degrees South. |
| Op Area Size/Dia.: |
550 x 65 nm |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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Ending
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Show Degrees Minutes |
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Foreign Clearance Required? |
Yes |
Coastal States:
Chile |
 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.) |
N/A |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Bahia de Valparaiso, Chile |
None, , None, |
Bahia de Valparaiso, Chile |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
N/A |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Nathan L. Bangs, UTIG |
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# in Science Party |
11 |
# of different science teams |
1 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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6 |
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Explanation of Science Party Requirements and Technician Requirements |
We need tech support for 2Dseismic acquisition. |
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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. |
The Langseth is the only vessel in the UNOLS fleet that can do this work.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
N/A |
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