I observe to dense confusions about MMR for some geonvs.Thus,I established clear informations👍

I observe to caused  a confusion cond by some geoenvs of Magnetometric Resistivity chapter.Thus,I needed to some clear explanations.


We can classify by two main branch Magnetometric Resistivity applications considering actualtimes;

  • Landsurvey concept(Modern example is Willowstick Technique)
  • Downhole concept(DMMR)
Landsurvey concept is popular for impacts from manmade structures mostly considering chapter  as mapping of horizontal type fluid devs

Downhole concept is useful for aims as understanding specs of sulphid mineralisations for mining with documenting of liquid interconnectivity considering borehole applications

I think that this short but clear explanations  light confusion conds of some geoenvs👍Thanks again..

Ekrem Erkuş
Geophysics Engineer


Update 6/15:

By the way,we can say summaried systems on Magnetometric Resistivity principles for these techniques against to questions based on classification about some technics expressing as Magnetic Induced Polarisation(MIP) and Sub-Audio Magnetic.For a link information about Sub-Audio Magnetic system;

https://www.yumpu.com/en/document/view/6395987/sub-audio-magnetic-sam-geophysical-crc-leme

Note.I emhasize especially expressed selective a cond to needs of some geoenvs based on geologic structures of presentation👍

For other link complementary about Sub-Audio Magnetic system;

https://manualzz.com/doc/36498880/sam---gap-geophysics



Link expressing successes  with technic specs of Sub-Audio Magnetic system by Gapgeo;

https://www.gapgeo.com/sub-audio-magnetics/


Additionally,I share to infrmtns about Downhole MMR system of Gapgeo;

https://www.gapgeo.com/downhole-em-mmr/


Most selective publication about Magnetic Induced Polarisation(MIP);

https://www.google.com/url?sa=t&source=web&rct=j&url=https://gq.mines.gouv.qc.ca/documents/examine/GM38750/GM38750.pdf&ved=2ahUKEwituYGnt6_4AhViQfEDHbEaA-kQFnoECAgQAQ&usg=AOvVaw2p-jnk5klLMbJsvjSXfWe7


Where,as evaluated,understanding clearly selective roles of IPRF-2 frequency domain IP Receiver  with MFM-3 high sensitivity vector fluxgate magnetometer for MIP😐


You are right,the magnetic induced polarization (MIP) method determines the variation of the induced polarization and resistivity of the earth through measurements of the magnetic field associated with galvanic current flow in the earth, rather than the electric field, as in the traditional induced polarization (IP) or electrical induced polarization (EIP) method👍


Important differences between the MIP and EIP methods are evident in field practice, mathematical theory, and field results. For example, the MIP method is insensitive to horizontal layering in the earth and reflects only lateral variations in its electrical properties. MIP also provides an enhanced ability to detect the presence of bodies of anomalous electrical properties even through a highly conducting surface layer. For this reason the MIP methods primary application is in regions of highly conducting (e.g., saline) overburden or weathered rock, such as in Australia. MIP responses tend to be more complex and varied in pattern than responses normally encountered in EIP measurements. For example, polarity reversals are the rule in MIP but are rarely encountered in EIP. MIP employs high-sensitivity component magnetometers as basic sensors. These are small relative to the length of the electric dipole sensors normally employed in EIP, and, therefore, provide relatively higher geometric resolving power👍


UPDATE 1/15:

For informations about Tamarack Project;

https://talonmetals.com/talon-metals-identifies-a-highly-conductive-anomaly-extending-east-of-the-current-massive-sulphide-unit-with-new-downhole-magneto-metric-resistivity-mmr-survey/


https://talonmetals.com/talon-metals-commences-drill-program-at-tamarack/


https://talonmetals.com/advancing-the-tamarack-project-upcoming-work-program-and-initiative-to-evaluate-producing-nickel-sulphates-for-the-battery-market/


https://talonmetals.com/what-are-you-doing-to-make-a-new-discovery/


https://talonmetals.com/talon-drilling-update-10-54-meter-34-6-feet-intercept-of-wide-mixed-massive-sulphides-logged-at-the-tamarack-project/


UPDATE 1/16:

For a link information summarying advantageous points of DHMMR by DHEM;

https://www.google.com/url?sa=t&source=web&rct=j&url=https://scholar.google.com.tr/scholar_url%3Furl%3Dhttps://www.911metallurgist.com/blog/wp-content/uploads/2015/10/DHMMR-Coming-of-Age.pdf%26hl%3Dtr%26sa%3DX%26ei%3DN03FY5msFY_mmgG4x5iYCw%26scisig%3DAAGBfm3Wycr8TxVbfNSx69Y3DrSBT-k_7w%26oi%3Dscholarr&ved=2ahUKEwiv0Nurlcz8AhVJSvEDHRbgCTQQgAN6BAgIEAE&usg=AOvVaw0tAtjedtILb5w1ikyVIZ1m



A link information about discussing  DHMMR system by hydrogeologic concept;

https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2478.1983.tb01087.x


For link summarying role of MMR method for mapping a fault;

https://www.researchgate.net/publication/237170854_The_Magnetometric_Resistivity_Method_and_its_Application_to_the_Mapping_of_a_Fault


UPDATE 1/18:

Link including informations about Agnew-Wiluna massive nickel sulphide deposit and Poseidon massive nickel sulphide deposit;

https://www.cambridge.org/ba/download_file/825698/


Example of Thalanga deposits;

https://www.researchgate.net/publication/248902768_The_Down-hole_Magnetometric_Resistivity_DHMMR_Method/link/57ec73a208ae93b7fa95962b/download

A report by Mr.Abraham Dros;

https://www.juniorminingnetwork.com/junior-miner-news/press-releases/2785-tsx-venture/air/79408-clean-air-metals-announces-addition-of-second-drill-and-commencement-of-phase-2-drilling-at-escape-lake-thunder-bay-north.html


Flying Doctor(Broken Hill) Experiment;

https://www.academia.edu/20672274/Simultaneous_modelling_of_the_phase_and_amplitude_components_of_downhole_magnetometric_resistivity_data


A link about borehole EM&MMR Methods for weak conductors;

https://www.tandfonline.com/doi/pdf/10.1071/ASEG2001ab002


Update 1/19:


SWestern Australia Experiment;

https://www.researchgate.net/publication/237756322_Horses_for_conductive_courses_DHEM_and_DHMMR/link/5586559108ae71f6ba900c95/download


Eloise Deposit DHEM Experiment;

https://www.researchgate.net/publication/238396235_Drillhole_EM_A_Strictly_Scientific_Hokey-Pokey/link/5efaa2ed45851550507e04f2/download


https://www.researchgate.net/publication/248903104_Geophysical_Characteristics_of_the_Eloise_Cu-Au_Deposit_North-West_Queensland



DHEM Surveys for Cindered Coal in the Sydney Basin;


https://www.researchgate.net/publication/248902510_Sign_Changes_in_DHEM_Surveys_for_Cindered_Coal_in_the_Sydney_Basin/link/594f58afaca27248ae3d06cd/download

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