Microgravity measurements

Our personnel have gained experience in Europe, Africa and Asia - performing geophysical surveys for energy sector, construction industry, geotechnical and environmental projects always in accordance with the highest standards and with the expectations of the Clients. GEOPHYSICS FOR GROUND EXPLORATION PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl PBG Geophysical Exploration Ltd. is a leading Polish company with over 60 years experience in geophysical investigations for petroleum, mineral and groundwater exploration as well as for engineering and environmental research. …about PBG PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl We offer range of non-invasive geophysical techniques applied to: GEOPHYSICS FOR GROUND EXPLORATION ground exploration geological mapping environmental and geotechnical studies archaeology mining and geothermal exploration gravity survey microgravity survey magnetic survey magnetotelluric survey VES vertical electrical soundings ERT electrical resistivity tomography IP induced polarization SP self-potential method ground penetrating radar GPR TDEM soundings VLF geophysical very_low_frequency shallow seismic methods refraction profiling, seismic tomography, MASW …geophysical methods GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl MICROGRAVITY is a precision surveying technique set apart from gravity method, used in shallow subsurface investigations for detecting underground cavities, characterization and identification of potential collapse features due to karst activity or mine subsidence. MICROGRAVITY surveys identify changes (variations) in the subsurface soil and rock density. Basing on microgravity data GRAVITY ANOMALY MAP is produced which indicates anomalous area - potential voids, sinkholes, areas of less dense materials. PBG has been providing GRAVITY / MICROGRAVITY SURVEYS for over 40 years applying the services to geological, geotechnical and environmental investigations. GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl tracing micro-tectonic features in the shallow subsurface void identification (natural and post-mining) sinkholes hazards identification karst cavities detection mine subsidence mapping locating old mine workings Gravity anomaly map shows variations in the subsurface soil and rock density associated with sinkholes or old excavations. MICROGRAVITY - precision surveying tool for near-surface exploration Equipment: CG-5 Gravity Meters, SCINTREX GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl Gravity anomaly map showing changes in sub-surface density around the collapse area; anomalous zones (mine voids) are shown in green (depth interval 0-20 m) Equipment: CG-5 Gravity Meter, SCINTREX GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl Sinkhole hazard area is shown as the low gravity anomalies zone MICROGRAVITY - non-invasive way to identify subsurface voids Equipment: CG-5 Gravity Meters, SCINTREX GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl Microgravity survey performed along the projected road section MICROGRAVITY – detecting near-surface density anomalies GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl Basing on microgravity data shallow borings were proposed in anomalous areas to build up an accurate model of the subsurface Gravity anomaly map GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl Map of gravity anomalies GEOPHYSICS FOR GROUND EXPLORATION MICROGRAVITY SURVEYING Precise CG-5 gravity meters (SCINTREX) providing high resolution gravity mapping field works (including geodetic/GPS measurements) processing and interpretation of data data modeling; maps and sections …we offer For services please contact: PBG Geophysical Exploration Ltd. 76 Jagiellonska str., 76, 03-301 Warsaw, POLAND pbg@pbg.com.pl; office@pbg.com.pl www.pbg.com.pl