3. Quantec Geoscience Limited
is a world leader in non-seismic ground geophysical exploration with worldwide offices since 1986.
Quantec offers state-of-the-art Deep Earth Imaging Technologies thru our proprietary Orion 3D,
Titan 24 DCIP&MT and Spartan MT data acquisition, processing and interpretation, as well as the
full suite of conventional EM survey methods.
Toronto, Canada
Reno, USA
Hermosillo, Mexico
QIPS, Barbados
Arequipa, Peru
Santiago, Chile
Lobatse, Botswana
Mendoza, Argentina
Brisbane, Australia
www.quantecgeoscience.com
7. Magnetic Field Sensors
Coil Calibration Chamber
•
Quantec owns and employs a calibration room
for calibrating magnetic field sensors.
•
The room provides both 3-layer passive
shielding and active field cancellation.
•
Each individual magnetic coil is calibrated
before deployment to the field and coil
calibration constants are archived for each and
every job.
•
Only two facilities of its kind in the world.
12. MT Signal Sources
• Sunspot activity has 11
year period.
• Last solar maximum was
in 2001.
• Past few years were
tough for MT acquisition
especially at high noise
areas.
29. Denizli 3D MT Model
Expected cross‐section (2 km) of the Denizli Graben (Akman, 2012)
Denizli graben contains two types of infills.
1. Ancient: 660 m thick Middle Miocene‐Middle Pliocene deposits controlled and deformed
by ~N‐S extension then compression in the latest Pliocene (Kocyigit, 2005).
2. Modern: 350 m thick, undeformed Plio‐Quaternary deposits (Kocyigit, 2005).
35. Conclusions:
– Closely spaced MT sites required to build better
constrained models as well as static shift control.
– Good quality MT data can be collected even around
industrialized and populated areas.
– MT imaged the sedimentary fill of the Denizli graben and
underlying Menderes metamorphics.
– Well locations were determined by use of MT, seismic
and structural geology to reduce drilling risk.
– Computational requirements for 3D inversion has been
matched by recent developments on computer clusters.
However, most MT surveys are designed as a grid and
more MT stations are collected than ever before.