Geological Characteristics of Mud Volcanoes and Diapirs in the Northern Continental Margin of the South China Sea: Implications for the Mechanisms Controlling the Genesis of Fluid Leakage Structures

<div>(a) Seismic profile over the Shenhu hydrate exploration area in Baiyun sag of Pearl River Mouth Basin. One mud diapir and two gas chimneys can be recognized in the profile. Mud diapir developed in the Paleogene strata, with a vertical columnar piercing T3 interface and reaching the Miocene strata causing plastic deformation of overlying sediments. (b) Internal appearance of the mud diapir on the instantaneous frequency profile exhibiting a low instantaneous frequency.</div>

Geofluids

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Figure 5

Figure 5: Geological Characteristics of Mud Volcanoes and Diapirs in the Northern Continental Margin of the South China Sea: Implications for the Mechanisms Controlling the Genesis of Fluid Leakage Structures 

Figure 5 | Geological Characteristics of Mud Volcanoes and Diapirs in the Northern Continental Margin of the South China Sea: Implications for the Mechanisms Controlling the Genesis of Fluid Leakage Structures 