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Updated: Jul 12, 2026
06:29
Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment
Published on: February 27, 2021
Hydrothermal plume measurements: a regional perspective
Science (New York, N.Y.)
|November 21, 1986
Summary
Researchers mapped deep-sea hydrothermal vent emissions, calculating significant heat and manganese flux. This study provides crucial data for understanding oceanic chemical and thermal processes.
Area of Science:
- Marine geology and geochemistry
- Oceanography
- Hydrothermal vent systems
Background:
- Active submarine vent fields are key sites for chemical exchange between Earth's interior and the ocean.
- Understanding the dynamics of hydrothermal plumes is essential for quantifying oceanic heat and chemical budgets.
Purpose of the Study:
- To map the 3D distribution of hydrothermal emissions from an active vent field.
- To calculate the hydrothermal discharge of heat and dissolved manganese.
- To assess the potential for scaling flux measurements to entire ridge segments.
Main Methods:
- Conducted an extensive deep-tow survey around the vent field.
- Analyzed the advective transport of the hydrothermal plume to estimate fluxes.
- Measured the dimensions and properties of the isopycnal plume.
Main Results:
- Mapped a 10-kilometer-long vent field with emissions forming a ~250m thick plume.
- Estimated heat flux at 5.8 +/- 2.9 x 10^8 watts.
- Estimated dissolved manganese flux at 0.2 +/- 0.1 moles per second.
Conclusions:
- Hydrothermal discharge from the vent field was quantified in terms of heat and manganese.
- The study demonstrates a method for estimating flux from plume advection.
- Findings support the expansion of flux measurements to larger scales for model comparison.
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