A newly discovered submarine mud volcano in the southeastern continental shelf of Korea: Its evolution through mud volcanism, cold-water coral growth and bottom-current erosion

IF 2.6 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Marine Geology Pub Date : 2025-02-01 DOI:10.1016/j.margeo.2025.107493

Joohyeon Kim , Young Jae Shinn , Yuri Kim , Eun Min Yeo , Bong Jun Kim , Jinsoon Park , Jeong Hyeon Moon

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引用次数: 0

Abstract

This study reports the first discovery of a mud volcano off southeastern Korea, based on multi-beam bathymetry, chirp seismic profiles, and sediment core analysis. The dimensions of the mound are comparable to mud volcanoes and mud cones previously identified on the Mediterranean Ridge and Gulf of Cádiz. A deep-rooted diapiric structure and lobate flow-like seafloor at the flanks also support that the mound formed by mud volcanism and mudflows. The mound crest is covered by dead cold-water corals, appearing as cone-shaped mound or rugged seafloor. The radiocarbon ages of coral fragments suggest that the mud volcano formed earlier than 7.1 ka; however, the timing and duration of coral habitation on the mound remain unknown. Currently, the morphology of the mound has been influenced by a strong bottom current, leading to the formation of a moat and drift system around the mound. The discovered mound is thus interpreted as a composite mud volcano that originated from mud volcanism and evolved via cold-water coral colonization and bottom-current erosion.

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来源期刊

Marine Geology 地学-地球科学综合

CiteScore

6.10

自引率

6.90%

发文量

175

审稿时长

21.9 weeks

期刊介绍： Marine Geology is the premier international journal on marine geological processes in the broadest sense. We seek papers that are comprehensive, interdisciplinary and synthetic that will be lasting contributions to the field. Although most papers are based on regional studies, they must demonstrate new findings of international significance. We accept papers on subjects as diverse as seafloor hydrothermal systems, beach dynamics, early diagenesis, microbiological studies in sediments, palaeoclimate studies and geophysical studies of the seabed. We encourage papers that address emerging new fields, for example the influence of anthropogenic processes on coastal/marine geology and coastal/marine geoarchaeology. We insist that the papers are concerned with the marine realm and that they deal with geology: with rocks, sediments, and physical and chemical processes affecting them. Papers should address scientific hypotheses: highly descriptive data compilations or papers that deal only with marine management and risk assessment should be submitted to other journals. Papers on laboratory or modelling studies must demonstrate direct relevance to marine processes or deposits. The primary criteria for acceptance of papers is that the science is of high quality, novel, significant, and of broad international interest.