Question 1

What does a geophysical survey cost?

Accepted Answer

There is no method to estimate what a geophysical survey will cost without knowing site conditions and the reason(s) for the survey. Depending on the geology and the depth of the survey, different technologies might be utilized, such as GPR (ground penetrating radar), EM (electromagnetic Induction), ERI (electrical resistivity), or seismic.

Question 2

What can you do with Geophysics data?

Accepted Answer

You can search for underground features, such as utilities, sinkholes, groundwater, underground storage tanks, or buried munitions.

Question 3

Can geophysical surveys be used for groundwater exploration?

Accepted Answer

Yes, geophysical surveys can use it for identifying zones of permeability capable of providing maximum extraction rates and ultimately reducing drilling costs.

Question 4

How does SurvTech help with Geophysical prospecting?

Accepted Answer

SurvTech has professional geologists and geophysicists on staff trained at collecting, processing, and interpreting geophysical data. From which we can produce a CAD or GIS map or professional report outlining our findings.

Question 5

What is a Geophysical Survey?

Accepted Answer

The measuring of geological, structural, and physical characteristics of the foundation soil to be properly planned.

Question 6

How do you read a geophysics map?

Accepted Answer

Geophysical image maps can be shown as black and white or color. Warm colors can represent high values such as magnetic intensity, and cooler colors like blues and greens can represent lesser values. Our team can apply different filters to make results easier to see.

Question 7

What is the field of Geophysics?

Accepted Answer

The definition of geophysics is geology that uses physical principles to study properties of the earth, including conductivity, soil composition, fluid dynamics, gravity, magnetism, minerals, and radioactivity.

Question 8

What are some geophysical testing methods?

Accepted Answer

Some common methods for geophysical exploration are cone penetrometer testing, ground-penetrating radar, gamma spectrometry, magnetometry, resistivity, and seismic reflection/refraction.

Question 9

In what environments can geophysical mapping be performed?

Accepted Answer

Many geophysical methods can be performed on the ground, in the air, and on the water.

Question 10

What is GPR used for?

Accepted Answer

GPR can be used to locate utilities and buried storage tanks, the depth of the water table, characterize stratigraphy and find void spaces and unmarked graves.

Question 11

What is a cone penetrometer test?

Accepted Answer

A CPT is done to characterize soil stratigraphy, measure soil compaction, and bearing capacity.

Question 12

What is gamma spectrometry, and what is it used for?"

Accepted Answer

All elements on earth are radioactive to some capacity. A gamma spectrometer (GRS) fingerprints elements by their energy signature. The signatures can be quantified, and the sources can be traced, making GRS a useful tool in locating rare-earth elements.

Question 13

What is Electrical Resistivity Imaging (ERI)?

Accepted Answer

ERI is a non-destructive method of imaging the subsurface. It involves passing an electrical current into the earth and measuring the voltage potential between pair of electrodes along a survey line. Materials such as sand and water have drastically different conductive properties that can be observed using the method. Sinkholes are just one anomaly that can be seen using ERI.

Question 14

What applications does geophysics have for mining?

Accepted Answer

sing geophysical mapping techniques can focus mining efforts more effectively. See case example.

SurvTech Solutions ®

Surveying Today with Tomorrow's Technology

Frequently Asked Questions