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Research Highlights

Jurassic Magnetism - High resolution surveys - 2014 Cruise

Our most recent expedition on the new research icebreaker Sikuliaq (SKQ201402S) to study the marine Jurassic magnetic signal in 2014/2015 was with Co-PIs Masako Tominaga (Texas A&M Univ.) and Will Sager (U. Houston). We used the autonomous underwater vehicle AUV Sentry and a deeptow towed magnetic sled with the objective of surveying the Pacific Hawaiian magnetic record to compare with our previous work in the Japanese lineations and the previous 2011 cruise to the Hawaiian lineations. The AUV sentry worked flawlessly and collected almost 600 km of near-bottom, high resolution magnetic field data. As part of this 2014 marine survey we also had undergraduates out on the research vessel and an onshore outreach component.

Click here for a link to the outreach website.

Map of the survey region in the western Pacific.


Link to 2014 Cruise Documents


Published Materials to Date

Tominaga, M., M.A. Tivey, and W.W. Sager, Nature of the Jurassic Magnetic Quiet Zone, Geophys. Res. Lett., 42, 8367-8372, doi:10.1002/2015GL065394, 2015.

Tominaga, M., M.A. Tivey, and W.W. Sager, Nature of the Jurassic Magnetic Quiet Zone revealed by sea surface, mid-water, and near source magnetic sensor data in the western Pacific, AGU Fall Meeting Abstract GP007-XXX, submitted 2015.

Feng, H.S., D. Lizarralde, L.A. Hart, M. Tominaga, M.A. Tivey and S.A. Swift, Extent and impact of Cretaceous magmatism on the formation and evolution of Jurassic oceanic crust in the western Pacific, AGU Fall Meeting Abstract, submitted 2015.


Archive Data

 

Map of the Sentry dives in the western Pacific.

Map of the DeepMag tows in the western Pacific.

Map of the sea surface magnetic profiles in the western Pacific.

 


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