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Okino, Kyoko; Fujii, Masakazu; Ohara, Yasuhiko (2023): Mado Megamullion Oceanic Core Complex in the Philippine Sea: bathymetry, magnetic and gravity anomalies [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.960003

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Abstract:
Multibeam bathymetry and track line geophysical data (magnetics and gravity) were collected in the Mado Megamullion oceanic core complex and the adjacent areas. The data were obtained between 2018 to 2021 during five cruises; R/V Yokosuka (JAMSTEC) YK18-07, YK19-04S, YK20-18S, YK22-18S, and R/V Hakuho-maru KH-18-02. The survey covers the oceanic core complex and the adjacent area from 138°20'E to 139°40'E and from 22°50'N to 24°50'N. The bathymetry was collected by EM122 (12kHz) and SeaBeam2020(20kHz). The total magnetic field was measured using a proton precession magnetometer towed behind the ship. The gravity measurement was done only in YK18-07 cruise using Lacoste-Romberg S-63 shipboard gravitymeter. The main objective of the series of surveys is to reveal the back-arc spreading process and the relationship with melt generation beneath.
Keyword(s):
back-arc basin; Bathymetry; gravity; magnetics; oceanic core complex
Related to:
Okino, Kyoko; Tani, Kenichiro; Fujii, Masakazu; Fei, Zhou; Ishizuka, Osamu; Ohara, Yasuhiko; Hanyu, Tomoko; Matamura, Yuki (2023): Geophysical investigation of the Mado Megamullion oceanic core complex: implications for the end of back-arc spreading. Progress in Earth and Planetary Science, 10(1), 37, https://doi.org/10.1186/s40645-023-00570-2
Funding:
Japan Society for the Promotion of Science (JSPS), grant/award no. 18H01303: MOWALL: Moho Observation along transform fault WALLs
Japan Society for the Promotion of Science (JSPS), grant/award no. 18K13638: Unveiling solid-Earth water distribution of oceanic tranfdorm faults and fracture zones
Japan Society for the Promotion of Science (JSPS), grant/award no. 22H01319: MOWALL-II: Moho Observation along transform fault WALLs II
Coverage:
Median Latitude: 23.749155 * Median Longitude: 138.866596 * South-bound Latitude: 22.060026 * West-bound Longitude: 137.552014 * North-bound Latitude: 25.166462 * East-bound Longitude: 139.723046
Date/Time Start: 2018-06-03T00:00:00 * Date/Time End: 2022-10-14T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
8 datasets

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Datasets listed in this bundled publication

  1. Okino, K; Fujii, M; Ohara, Y (2023): Magnetic processed data (Proton precession magnetometer working area dataset) of RV HAKUHO MARU during cruise KH-18-02, trackline magnetic anomaly. https://doi.org/10.1594/PANGAEA.960009
  2. Okino, K; Fujii, M; Ohara, Y (2023): Gravity processed data (LaCoste and Romberg S63 Gravity Meter working area dataset) of RV YOKOSUKA during cruise YK18-07, gridded free-air gravity anomaly. https://doi.org/10.1594/PANGAEA.960002
  3. Okino, K; Fujii, M; Ohara, Y (2023): Gravity processed data (LaCoste and Romberg S63 Gravity Meter working area dataset) of RV YOKOSUKA during cruise YK18-07, trackline free-air gravity anomaly. https://doi.org/10.1594/PANGAEA.960004
  4. Okino, K; Fujii, M; Ohara, Y (2023): Magnetic processed data (Proton precession magnetometer working area dataset) of RV YOKOSUKA & RV HAKUHO MARU during cruise YK18-07, YK19-04S, YK20-18S & KH-18-02, gridded magnetic anomaly. https://doi.org/10.1594/PANGAEA.960005
  5. Okino, K; Fujii, M; Ohara, Y (2023): Magnetic processed data (Proton precession magnetometer working area dataset) of RV YOKOSUKA during cruise YK18-07, trackline magnetic anomaly. https://doi.org/10.1594/PANGAEA.960006
  6. Okino, K; Fujii, M; Ohara, Y (2023): Magnetic processed data (Proton precession magnetometer working area dataset) of RV YOKOSUKA during cruise YK19-04S, trackline magnetic anomaly. https://doi.org/10.1594/PANGAEA.960007
  7. Okino, K; Fujii, M; Ohara, Y (2023): Magnetic processed data (Proton precession magnetometer working area dataset) of RV YOKOSUKA during cruise YK20-18S, trackline magnetic anomaly. https://doi.org/10.1594/PANGAEA.960008
  8. Okino, K; Fujii, M; Ohara, Y (2023): Multibeam bathymetry processed data (Kongsberg EM 122 & SeaBeam 2020 dataset compilation) of RV YOKOSUKA & RV HAKUHO MARU during cruise YK18-07, YK19-04S, YK20-18S, YK22-18S & KH-18-02. https://doi.org/10.1594/PANGAEA.959998