A5060821630- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- earthquake and tectonic studies
- Paleontology and Stratigraphy of Fossils
- Methane Hydrates and Related Phenomena
- Seismic Imaging and Inversion Techniques
- Geomagnetism and Paleomagnetism Studies
- Geochemistry and Elemental Analysis
- High-pressure geophysics and materials
Korea Institute of Ocean Science and Technology
2006-2017
Abstract The complex geology and expansive axial valleys typical of slow‐spreading ridges makes evaluating their hydrothermal activity a challenge. This challenge has gone largely unmet, as the most undersampled MOR type for is slow spreading (20–55 mm/yr). Here we report first systematic plume survey conducted on Central Indian Ridge (CIR, 8°S–17°S), extensive such yet ridge. Using combined CTD/Miniature Autonomous Plume Recorder (MAPR) package, used 118 vertical casts along seven segments...
Hydrogenetic ferromanganese crusts were dredged from four seamounts in the western Pacific, OSM7, OSM2, Lomilik, and Lemkein, aligned a NW‐SE direction parallel to Pacific Plate movement. The consist of well‐defined layers with distinct textural geochemical properties. topmost layer 1 is relatively enriched Mn, Co, Ni, Mo compared underlying 2, which Al, Ti, K, Rb Cu, Zn, excess Ba. Textural properties 2 suggest growth conditions under high biogenic detrital flux. Such are met equatorial...
Abstract The northern Central Indian Ridge (CIR) between 8°S and 17°S is composed of seven segments whose spreading rates increase southward from ∼35 to ∼40 mm/yr. During expeditions R/V Onnuri study hydrothermal activity on the CIR in 2009–2011, high‐resolution multibeam mapping was conducted ridge axis basalts were dredged. major trace element Sr‐Nd‐Pb‐He isotopic compositions basaltic glasses dredged require three mantle sources: depleted two distinct enriched sources. southern have Sr,...