We performed electrical resistivity mapping along a mineralized vein structure with associated gelena. Can someone assist with information on the electrical resistivity contrast of galena and host rock (schist).
Normally, we use the background values of the host rocks to delineate the orebody. However, an integrated geophysical methods is very important for sulphide ore (Galena) exploration. Eg. the use SP, IP, EM and ER. SP values for galena may range between 120mV to 200mV.
there is no any obvious and clear range for galena, it depends to the area and host rock that you work with. most of the time we have shale beside galena and spharelite than can have pseudo IP. but by integration methods such as electrical resistivity and metal factor analysis and paying attention to geological formation you can eseally detect Pb sulfides.
Dear Ebong D. Ebong
Here are few links, hope you will find these links helpful.
http://www.minsocam.org/ammin/AM61/AM61_248.pdf
http://crack.seismo.unr.edu/ftp/pub/louie/class/492/data/2011/GPH492_ALL_FILES_2011/AppliedGeophysics_Telford/AppliedGPH_ElectricalPropertiesOfRocksAndMinerals.pdf
http://www.ela-iet.com/IronGlen/PearceMagSulfides127.pdf
https://faculty.unlv.edu/pburnley/GEOL442_642/RES/NOTES/ResistivityNotes06Rockres.html
Yes, I agree with Alilou, we applied electrical resistivity methods (i.e., vertical electrical sounding and electrical resistivity tomography) and the anomalous zones showed relatively lower resistivity values compared with the host rocks (i.e., schist).
- Badges
- Science topic
- Similar topics
- Geoscience
- Cartography
- Mapping