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Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 4 | Geoscience Letters

Fig. 4

From: Discovery of a conical feature in Halmahera waters, Indonesia: traces of a late-stage hydrothermal activity

Fig. 4

Multibeam backscatter and sampled materials from one successful trial. a Multibeam backscatter of the conical feature. White lines: 100-m contours. b Filtered multibeam backscatter showing seabed classification. An area with the highest number of high-decibel backscatters was chosen for seafloor sampling. c Seafloor biota and sediments sampled from the peak of Yudo Sagoro Hill

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