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Updated: Oct 15, 2025
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Ice Generation and the Heat and Mass Transfer Phenomena of Introducing Water to a Cold Bath of Brine
Published on: March 13, 2017
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A cold seep triggered by a hot ridge subduction.
Lucía Villar-Muñoz1, Masataka Kinoshita2, Joaquim P Bento3
1Departamento de Geofísica, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile.
Scientific Reports
|October 23, 2021
Summary
The Chile Triple Junction
Area of Science:
- Geophysics
- Geology
- Oceanography
Background:
- The Chile Triple Junction subduction zone features an anomalous thermal regime.
- Understanding this regime is key to studying cold continental margins.
Purpose of the Study:
- To investigate the hydrogeological system and heat flow at the Chile Triple Junction.
- To determine the influence of the subducting Chile Rise on the continental margin's thermal state.
Main Methods:
- Integrated analysis of geophysical and geological datasets (bathymetry, heat flow, thermal conductivity).
- Direct heat flow measurements using thermal probes.
- Analysis of gas hydrate distribution limits and rock dredging data.
Main Results:
- Localized high heat flow is attributed to fluid advection from dewatering and the subducting Chile Rise.
- Active volcanism associated with ridge subduction was confirmed.
- The rift axis of the Chile Rise is located beneath the accretionary prism's toe, enhancing fluid advection.
Conclusions:
- The subducting Chile Rise significantly influences the thermal regime and hydrogeology of the continental margin.
- These findings are crucial for understanding hydrothermal circulation, seismicity, volcanism, and gas hydrate stability in the region.
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