Geology and Ore Deposits

40 topics in this forum

1. A drive through tour of Malakoff Diggins and North Bloomfield

   By Smithsgold, 17 hours ago   

   • gold
   • malakoff diggins
   • (and 1 more)

     Tagged with:

     • gold
     • malakoff diggins
     • gold rush
   • 0 replies
   • 1 view
   • 
   • Smithsgold
   • 17 hours ago

2. question on geothermal gold

   By wynpotter, October 1, 2018
   • 1 reply
   • 1,451 views
   • 
   • Reno Chris
   • May 12

3. Is there really a vein here?

   By Harry Lipke, February 26, 2018
   • 6 replies
   • 1,019 views
   • 
   • Harry Lipke
   • March 16, 2018

4. Usgs Alaska Geologic Digital Map (New)

   By AkNugget, January 6, 2016
   • 2 replies
   • 12,339 views
   • 
   • Reno Chris
   • January 25, 2017

5. Fisher Two-Box High-Voltage Vacuum Tube Metalloscope

   By Jim Straight, October 16, 2015   

   • Does Anyone have one for sale
   • 14 replies
   • 3,065 views
   • 
   • Ricky D N
   • October 17, 2016

6. Red Waxy Clay

   By Rick N, December 1, 2015
   • 4 replies
   • 1,355 views
   • 
   • Rick N
   • December 7, 2015

7. Magnometer To Survey 400 Acres Of Placer Ground?

   By Peter Freedman, November 23, 2014   

   • Magnometer
   • 6 replies
   • 2,172 views
   • 
   • William A
   • November 13, 2015

8. March Issue Of Icmj

   • 1
   • 2
   • 3

   By Rick N, March 4, 2015
   • 58 replies
   • 6,674 views
   • 
   • Rick N
   • November 12, 2015

9. Terrane Convergence = Contact Zone?

   By Kev, December 16, 2014
   • 8 replies
   • 2,250 views
   • 
   • William A
   • October 29, 2015

10. The Gravity Method

    By Geowizard, January 25, 2015   

    • Geophysics
    • Geophysical Methods
    • (and 5 more)

      Tagged with:

      • Geophysics
      • Geophysical Methods
      • Gravity
      • Stephen Hawking
      • prospecting
      • methods
      • gold
    • 14 replies
    • 4,535 views
    • 
    • Geowizard
    • September 6, 2015

11. Seismic Method

    By Geowizard, December 11, 2014   

    • geophysics
    • seismic method
    • (and 8 more)

      Tagged with:

      • geophysics
      • seismic method
      • seismology
      • bedrock
      • bedrock detemination
      • delta-t
      • gold
      • prospecting
      • reflection
      • refraction
    • 8 replies
    • 3,493 views
    • 
    • Geowizard
    • January 29, 2015

12. Bison 500 Series Seismometer

    By Randall S, December 9, 2014
    • 0 replies
    • 1,151 views
    • 
    • Randall S
    • December 9, 2014

13. Electromagnetic Survey

    By Geowizard, November 27, 2014   

    • geophysics
    • geophysical survey
    • (and 8 more)

      Tagged with:

      • geophysics
      • geophysical survey
      • em
      • electromagnetic
      • gold
      • conductivity
      • conductivity thickness
      • airborne
      • ground
      • metal detector
    • 1 reply
    • 1,957 views
    • 
    • Geowizard
    • November 28, 2014

14. Resistivity

    By Geowizard, October 21, 2014   

    • Resistivity
    • geophysical
    • (and 8 more)

      Tagged with:

      • Resistivity
      • geophysical
      • measurement
      • method
      • metals
      • earth
      • precious metals
      • metal discrimination
      • electromagnetic
      • geophysics
    • 4 replies
    • 2,417 views
    • 
    • Geowizard
    • November 21, 2014

15. Need Some Mineral Id Help

    By IdahoJim, November 4, 2014   

    • lamproite
    • rhyolite
    • 5 replies
    • 1,746 views
    • 
    • IdahoJim
    • November 5, 2014

16. Rare Gems And Selling Prices Per Carat

    By Eric N, March 13, 2014
    • 1 reply
    • 1,644 views
    • 
    • IdahoJim
    • November 4, 2014

17. Residual Magnetic Intensity

    By Geowizard, October 7, 2014   

    • gold
    • magnetometer
    • (and 8 more)

      Tagged with:

      • gold
      • magnetometer
      • geologic structure
      • magnetite
      • interpretation
      • geophysics
      • iron ore
      • hematite
      • chromite
      • platinum
    • 19 replies
    • 2,925 views
    • 
    • Geowizard
    • October 21, 2014

18. Moore Creek Geology

    • 1
    • 2
    • 3
    • 4

    By Geowizard, September 24, 2013   

    • moore creek
    • alaska
    • (and 8 more)

      Tagged with:

      • moore creek
      • alaska
      • placer gold
      • lode gold
      • geology
      • dredging
      • paleochannels
      • nuggets
      • metal detecting
      • panning
    • 96 replies
    • 12,825 views
    • 
    • Geowizard
    • October 3, 2014

19. Wrangellia Survey

    By Geowizard, January 31, 2014   

    • geophysics
    • Alaska
    • (and 6 more)

      Tagged with:

      • geophysics
      • Alaska
      • Valdez creek
      • Wrangellia
      • geophysical survey
      • exploration
      • deposits
      • gold
    • 8 replies
    • 2,981 views
    • 
    • Geowizard
    • October 2, 2014

20. 7.7 Ounce Gold Crystal

    By chickenminer, April 20, 2014
    • 3 replies
    • 2,302 views
    • 
    • Elijah W
    • June 3, 2014

21. Reef Geology Theory

    By Clay, March 25, 2014
    • 1 reply
    • 1,665 views
    • 
    • flintgreasewood
    • March 26, 2014

22. Bison Model 7012 12 Channel Reflection/refraction Seismograph-Ebay

    By Randall S, March 2, 2014
    • 1 reply
    • 3,081 views
    • 
    • Geowizard
    • March 4, 2014

23. Az Aerial Survey

    By Au+, February 17, 2014
    • 3 replies
    • 1,710 views
    • 
    • Geowizard
    • February 18, 2014

24. Limestone Gold Relationship

    By Chuck, February 16, 2014
    • 4 replies
    • 15,487 views
    • 
    • Tad R
    • February 17, 2014

25. Eolian Placers

    By Clay, February 6, 2014
    • 1 reply
    • 2,255 views
    • 
    • Au+
    • February 6, 2014