The true value of state-of-the-art geophysical technology is allowing one to see what others may not see, thereby finding what others may not find – MRI-32 – pushing technological boundaries to image complex and deeper anomalies
Present day induced polarization (IP/Res) contracts are commonly awarded to the lowest bidder. However, many present-day conventional IP/Res systems do not meet modern exploration challenges. The merits and value of acquiring multiple data sets, much higher data density all in one go, along with post survey advanced signal processing to mitigate natural and cultural noise, greatly enhances the probability of mineral discovery. MRI-32 provides increased value and exploration success at comparable pricing to conventional IP/Res.

Exploration for mineral deposits is increasingly focusing on deeper deposits often found below complex overlying geology, IP/Res is the most widely adopted geophysical methodology in use today to focus in on these challenging targets. 2-D IP/Res surveys are a practical economic compromise between obtaining very accurate results and keeping survey costs down. Designed for high-performance and precision, 2D-MRI-32 is the essential solution to finding mineral resources.

No more bulky,awkward multi-conductor cables carrying analog signals back to a central receiver, the new age of resistivity/induced polarization mapping has arrived…MRI-32 distributed acquisition is here.
The MRI-32 Distributed Acquisition system uses a high number of one- channel sensors(Nodes) recording simultaneous. A typical setup would contain 10 to more than 100 sensors recording real-time, wirelessly transferring digitized QC data to a central acquisition site. Final data are down loaded from Nodes and industry leading Signal Processing is conducted to extract superior quality data.

Discovery routinely works in collaboration with industry specialists and academic sectors to advance innovative geophysical imaging technology. Adhering to this principle,2D MRI-32 was developed toprovide forward reverse pole-dipole (PLDP/DPPL) and pole-pole (PLPL) Induced Polarization/Resistivity (IP/Res) data sets in one survey pass.
MRI-32 offers high-density 2D IP/Resistivity/DC Resistivity data to 32 channels, greatly improving the ability of inversion processing to image anomalies. Data are collected simultaneous in the form of Pole-Pole (PLPL), Pole-Dipole (PLDP) and Reverse PLDP or Dipole-Pole (DPPL), effectively providing three times the data density over conventional surveys. Moreover, dipping anomalies are often poorly responsive to a particular direction of survey, and MRI-32 provides coverage from both cross strike directions to increase detection and resolution. A survey design could involve adjusting parameters to record PLDP, DPPL data to a desired depth, with supplementary much deeper seeking Pole-Pole used for detection of deep-seated feeder or alteration systems.
Survey parameters are easily adjusted to meet the criteria of a particular geological model, from shallow vein systems <100m depth, to deep alteration targets >1000m. High powered transmitter equipment, full waveform recording and special field techniques are employed to further increase signal-to-noise. Emphasis on acquiring high quality changeability data to map polarizing mineralization is the objective.

MRI-32, a radical new approach to IP/Res data collection offering:
– full waveformtime-domain 2D resistivity/induced polarization data acquisition

– records forward-reverse pole-dipole and pole-pole In-Line simultaneous- 10 to 100 dipoles, increased dipoles greatly enhances depth of exploration, double injection excitation events- 50% higher data density greatly enhances resolution and confidence in drill targeting

– 32-bit (ADC) offering superior resolution through advanced post survey signal processing significantly improving the ability to reject natural, cultural or parasitic noise, much clearer interpretation precision

– enhanced field operations, smaller crews, greater productivity especially in terms of cubic area surveyed at a price comparable to conventional IP/Res

– wireless real time QC,capable of near countless independent receiver (node) deployment possibilities, operating in a time-stamped GPS-synchronized network.

– minimal weight for deployment, minimal power requirements for long survey periods without charging

– Large-scale surveys possible with smaller crews, due to the ease of transport and placement of receiver instrumentation

– instrumentation suited to difficult terrain and climate conditions where traditional methodology and equipment often produce erroneous data

– accurate XYZ GPS positioning of all measurement and injections positions,eliminating resistivity calculation error so often a source of noise in rugged terrain

– sub milli-amp recording of current at both the injection point and transmitter location to identifying current leakage along current feed wire

– industry leading integrated safety, ongoing research and development

MRI-32- high-quality data to boost accuracy and improve exploration success

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