Geophysics Lab

RESEARCH EQUIPMENT 

SEISMIC INSTRUMENTS: instruments to perform P- and S-wave seismic tomography on the surface or downhole, surface wave tests (MASW and active / passive tomography), downhole and crosshole seismic tests (CHT, DHT), passive characterization and monitoring of sites, analysis of ambient seismic noise and micro-seismicity. 

Field of application: geophysical charecterization of the subsurface for environmental, geological, geo-engineering, geotechnical and exploration purposes.  

Geometrics Geode 24 ch. seismic unit (with toughbook) 3D 1 Hz Geophone 4.5 Hz vertical geophone 3D 2 Hz seismic instrumentation 3D 2 H seismic instrumentation 30 Hz vertical geophone 3D borehole multigeophones Seismic borehole source

GEORADAR INSTRUMENTS: performed using two transmitters and antenna with frequency range 70 to 2000 MHz for shallow, borehole and airborne acquisitions. 

The radar detector can be mounted on the boat designed specifically for geophysical surveys in an aquatic environment.

Field of application: geophysical characterization of the subsurface for geological, geo-engineering and geo-technical purposes. Also, characterization of the cryosphere and high altitude environments,  archaeogeophysics and conservation of cultural heritage, and  characterizations in the aquatic environment. 

GPR acquisition unit with IDS 200 MHz antenna GPR acquisition unit with IDS 2000 MHz antenna IDS 2000 MHz GPR antenna IDS 300 MHz GPR borehole antenna GSSI 500 MHz GPR antenna GSSI 900 MHz GPR antenna mounted on snow machine Subecho 70 MHz GPR carried antenna Subecho 70 MHz GPR antenna Antenna Subecho 70 MHz GPR antenna on airborne setup GSSI 900 MHz GPR antenna drone setup

GEOELECTRIC INSTRUMENTS: composed of 2 IRIS Syscal multi-node device with 2, 3 , 5 or 10 m spacing cables and stainless steel and implorazable electrodes. The acquisition can be configured for continous acquisition in marine environment, tomography, vertical and horizontal electrical surveys (SEV and SEO), continous vertical electrical sounding (CVES) in aquatic environment, logs, measurements of apparent resistivity in laboratory and spontanous potentials (SP).  

The Geoelectric device can be mounted on the boat designed specifically for geophysical surveys in an aquatic environment.

Field of application: geophysical characterization of the subsurface for geological, geo-engineering and geo-technical purposes. Also, characterization of the cryosphere and high altitude environments,  geological and hydrogeological characterization in a marine environment.  

IRIS Syscal Pro 72 ch. ERT acquisition unit 2-3-5-10 m step ERT cables Implorazable electrod ERT cable configuration Iron electrod Marine electric acquisition

MAGNETIC INSTRUMENTS: composed of a Gemsys GSM-19 and a Geometric MFAM magnetometers.  

The MFAM magnetometer can be mounted on the boat designed specifically for geophysical surveys in the aquatic environment.

Field of application: geological characterization at various scales and also archeogeophysics.  

GEMSYS GSM-19 Magnetometer GEMSYS GSM-19 Magnetometer acquatic setup

ELECTROMAGNETIC INSTRUMENTS: consists of a Geophysika CMD Explorer conductivity meter and an ABEM WalkTEM2 acquisitor.

Field of application: geophysical characterization of the sub-surface for geological, environmental and exploration purposes, and also archaeogeophysics and conservation of cultural heritage. 

Geophex Gem2 Conductivity meter

SUB-BOTTOM PROFILER INSTRUMENTS: Acquisition system composed of 2 sets of 3.5 and  10 KHz transducers. The system is mounted on the boat designed specifically for geophysical investigations in the aquatic environment. 

Field of application: geological characterization in a submerged environment. 

BATHY2010 marine acquisition unit with 3,5 - 10 KHz tranducers

ULTRA-SONIC INSTRUMENTS: the instrumentation for the estimation of cracks and fractures of stone materials, which provides an acquisition of ultrasonic transducers. 

Field of application: conservation of cultural heritage, mechanical characterization of rock samples for geotechnical and geo-engineering applications. 

Stone material ultrasonic test Ultrasonic acquisition Pundit unit Pundit ultrasonic sensor unit

WCR INSTRUMETS: Acquisition system composed of transducers for estimating the water content. 

Field of application: geohydrological characterization of the soil, snow masses and surface deposits. 

Snow caratherisation test with WCR sensors Campbell Datalogger with WCR sensors

SERVICES

The geophysics laboratory can provide services in various areas that include the design and execution of surveys and monitoring using geophysical techniques.

The geophysical methods available are:

• seismic and tomographic both surface and borehole (DHT and CHT);
• seismic for 1D, 2D and 3D surface waves;
• georadar surveys on the ground or in surface waters;
• electrical resistivity and chargeability tomographies on the surface and in the borehole;
• electromagnetic measurements in the time domain (TDEM) and in frequency;
• magnetometer measurements.

Data processing and inversion are conducted using state-of-the-art commercial codes and proprietary calculation codes that implement advanced methodologies resulting from the group's research activities.