Collecting Data Through Airborne Surveys
geophysical surveys are used to acquire a regional overview of the geologiy. Many Jr. mining and exploration companies utilize
airborne methods of prospecting to acquire data through airborne surveys. Airborne
surveys provide a cost-effective and accurate method of creating geophysical
mappings for large areas of interest.
Airborne surveys make it possible
to create geophysical mappings for large areas in a fraction of the time and
using minimal manpower.
Data Acquisition Systems
geophysical survey companies typically utilize different types of data
acquisition systems to gather data for specific geological characteristics. Each
type of sensor is specialized to detect a particular type of geological setting. It also dictates the manner in which the airborne survey must be executed
in order to deliver the best possible, and accurate results.
types of airborne surveys include the following:
- Magnetic – used to determine the presence and
intensity of magnetic anomalies. These magnetic anomalies can signal concentrations
of magnetic minerals.
- Radiometric – used to determine the levels of
gamma rays and natural radiation emitted by mineral and rock-bound elements.
- Electromagnetic – used to measure the electrical
conductivity of the subsurface and detect the presence of base metal sulfides.
- Gravity – used to measure gravity anomalies
which can be used to determine the rock density and other geophysical
properties often association with oil and natural gas deposits
premier airborne geophysical survey companies have technologically-advanced
data acquisition systems to monitor and record data from a variety of sensors
and external devices simultaneously, for real time applications with strict timing
constraints. They also have
experienced crews that are able to execute the surveys in the most efficient
manner possible and combine multiple survey types to acquire the most