Seismic pumping—a hydrothermal fluid transport mechanism

  title={Seismic pumping—a hydrothermal fluid transport mechanism},
  author={Richard H. Sibson and J. Mcm. Moore and A. J. Rankin},
  journal={Journal of the Geological Society},
  pages={653 - 659}
A consequence of the dilatancy/fluid-diffusion mechanism for shallow earthquakes is that considerable volumes of fluid are rapidly redistributed in the crust following seismic faulting. This is borne out by the outpourings of warm groundwater which have been observed along fault traces following some moderate (M5–M7) earthquakes. The quantities of fluid involved are such that significant hydrothermal mineralisation may result from each seismically induced fluid pulse, and the mechanism provides… 

Figures from this paper

Seismic imaging of a fluid storage in the actively extending Apennine mountain belt, southern Italy

A picture of the upper crustal structure of the Irpinia active faults system in southern Italy was obtained by combining new geological evidences, lithological properties, and microseismicity

Hydrothermal alteration as a trigger mechanism for earthquake swarms: the Vogtland/NW Bohemia region as a case study

SUMMARY Earthquake swarms occur mostly in regions with CO2-enriched pore fluids. It is generally accepted that both geodynamic stress accumulation and critical pore fluid pressures act as a

Sustainable densification of the deep crust

The densification of the lower crust in collision and subduction zones plays a key role in shaping the Earth by modifying the buoyancy forces acting at convergent boundaries. It takes place through

Rock Fractures in Geological Processes: Fluid transport in faults

Aims The way active faults transport crustal fluids is important in many fields of earth sciences, including petroleum geology, geothermal research, volcanology, seismology, and hydrogeology. There

The relation between earthquakes, faulting, and submarine hydrothermal mineralization

Although the relationship between submarine hydrothermal activity and earthquakes was recognized over 20 years ago, it has still not been precisely defined. Faulting and permeability control fluid


The movement of fluids up growth faults is proposed to be periodic; when faults are active they can concentrate fluid flow, but when inactive, flow is restricted. Higher flow rates are predicted to

Thermal anomalies and fluid geochemistry framework in occurrence of the 2000-2001 Nizza Monferrate seismic sequence (northern Italy): Episodic changes in the fault zone heat flow or chemical mixing phenomena?

Abstract. The paper discusses the correlation between the heating of shallow groundwater over a 10 × 20 km wide area close to the town of Nizza Monferrato (Piemonte Region, Northern Italy) and the

The physical hydrogeology of ore deposits

Hydrothermal ore deposits represent a convergence of fluid flow, thermal energy, and solute flux that is hydrogeologically unusual. From the hydrogeologic perspective, hydrothermal ore deposition



Earthquake Prediction: Variation of Seismic Velocities before the San Francisco Earthquake

The duration of the precursor period is proportional to the square of an effective fault dimension, which indicates that a diffusive or fluid-flow phenomenon controls the time interval between the initiation of dilatancy and the return to a fully saturated condition which is required for rupture.

Matsushiro, Japan, Earthquake Swarm: Confirmation of the Dilatancy-Fluid Diffusion Model

The uncertainties in seismic velocities derived from earthquake data, the ambiguities of interpretation, and the lack of substantial evidence from explosion travel-time data leave the question of the

On dilatancy in relation to seismic sources

The theory of the Osborne Reynolds dilatancy phenomenon is developed, and it is shown to contain an intrinsic instability of the type needed to account for seismic faulting. This theory requires the

Dilatancy, pore fluids, and premonitory variations of ts/tp travel times

  • A. Nur
  • Geology
    Bulletin of the Seismological Society of America
  • 1972
Nerseov et al. (1969) found that the travel-time ratio of shear and compressional waves, ξ = ts/tp varies prior to the occurrence of earthquakes in the Garm region, USSR. Laboratory results

Frictional constraints on thrust, wrench and normal faults

IT is generally true that in ancient fault zones, quartzofeldspathic mylonites which indicate partial plastic yield throughout a volume of rock1, are most extensively developed in association with

Summary of the seismographic observation of the Matsushiro swarm earthquakes

The Matsushiro swarm earthquakes commenced in August 1965 and continued for more than three years. The Earthquake Research Institute, University of Tokyo, conducted tripartite observation using very

Seismic moment, stress, and source dimensions for earthquakes in the California‐Nevada region

The source mechanism of earthquakes in the California-Nevada region was studied using surface wave analyses, surface displacement observations in the source region, magnitude determinations, and

Notes on dilatancy recovery

The dilatancy-fluid diffusion model for earthquake prediction requires that dilatancy be recoverable. Several experiments are described to illustrate the extent to which dilatancy in the compression

Economic Mineral Deposits

This book serves as a complete, yet concise introduction to heat, for students in engineering. chemistry, physics, astronomy, or general science who have had the beginning college course in general