• EveningStar open pit Mount Magnet October. Bob Watchorn sketch 1987.
  • Leonora giant ring structure on Landsat.
  • Yilgarn surficial geology showing Cauden giant ring structure. Blewett 2004
    Yilgarn surficial geology showing Cauden giant ring structure. Blewett 2004
  • Yamarna giant ring cluster
  • Jack Towers cottage Mt Magnet bob Watchorn Sketch October 1987
  • Hannans Brown Hill shaft Kalgoorlie, 1894 Bob Watchorn sketch 1996
  • Wogarno shearing shed, Kirkalocka. WASO recital 1991. Bob Watchorn Sketch, 1991
  • Great Boulder Early Shafts 1893. Bob Watchorn Sketch 1997
  • Mt Bischoff water cannon 1895. largest tin mine in world at that time. Kick started Tasmania's economy.
  • The Olgas Kata Tjudata, from the west 1996. Bob Watchorn Sketch 1996.
  • Kalgoorlie Baptist Church, Bob Watchorn Sketch 1998
  • Cooktown Queensland from Grassy Hill to the south. Bob Watchorn sketch 2006
  • Cliff Dweller houses, Arizona USA Bob Watchorn sketch 2006
  • Barnhill Station Bungles Kimberly Western Australia. Bob Watchorn Sketch 2009
  • Cattle truck Hillside Station Pilbara Western Australia. Bob Watchorn Sketch 2009
  • Balcony overlooking Port Hedland bay Pilbara. Bob Watchorn Sketch 2009
  • Hobart from Lance and Shirley Watchorn's balcony. Bob Watchorn sketch 1999.
  • Evening Star open pit Mt Magnet. Bob Watchorn Sketch 1987
  • Silver Lake Shaft WMC Kambalda. First big Nickel mine in Australia Bob Watchorn Sketch 1996
  • Silver Lake Shaft WMC Kambalda. First big Nickel mine in Australia Bob Watchorn Sketch 1996
  • Cooktown from Grassy Hill on the Endeavor river, Queensland. Bob Watchorn Sketch 2006
  • Cooktown from Grassy Hill on the Endeavor river, Queensland. Bob Watchorn Sketch 2006
  • Fishing boat harbour. Albany 2006
  • Fishing boat harbour. Albany 2006
  • Shalom retreat, Manjimup Western Australia 2003
  • Victory-defiance open pit Kambalda. Bob Watchorn Sketch 1994
  • Hill 50 main shaft, Mt Magnet western Australia. Bob Watchorn Sketch 1987
  • Perth, Western Australia from beneath Mt Henry Bridge, Mt Pleasant. Bob Watchorn Sketch 1999
  • The granites, Mt Magnet, Western Australia. Bob Watchorn Sketch 1987.
  • Two intrepid divining-rod prospectors, Peter Cook and Donald Thompson, Wingellina nickel project, Western Australia 2006
  • Brown Hill Shaft. Mt Magnet, Western Australia. Bob Watchorn sketch 1988.
  • Brown Hill Shaft. Mt Magnet, Western Australia. Bob Watchorn sketch 1988.
  • Eclipse mine shaft Mt Magnet. Bob Watchorn sketch 1987.
  • Eclipse mine shaft Mt Magnet. Bob Watchorn sketch 1987.
  • Boogardie State Battery, Mt Magnet, Western Australia. Bob Watchorn Sketch 1988
  • Boogardie State Battery, Mt Magnet, Western Australia. Bob Watchorn Sketch 1988
  • Great Boulder main shaft Kalgoorlie, Western Australia 1903. Bob Watchorn Sketch 1997.
  • Great Boulder main shaft Kalgoorlie, Western Australia 1903. Bob Watchorn Sketch 1997.
  • Hesperus Dawn Gold Mine Ruins, Mt Magnet, western Australia. Bob Watchorn sketch 1997.
  • Hesperus Dawn Gold Mine Ruins, Mt Magnet, western Australia. Bob Watchorn sketch 1997.
  • Edward Carson shaft, Mt Magnet, Western Australia. Bob Watchorn sketch 1988.
Figure 23. NE Yilgarn Gruyere Tropicana Radiometric targeting.

NE Yilgarn, Yamarna Exploration Targeting using radiometrics, Western Australia. (Part 7).

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Figure 23 above. NE Yilgarn Gruyere – Tropicana Radiometric targeting. This paper examines using radiometrics for targeting gold mineralisation. The above figure, from 2017, shows mineralisation targeting using radiometrics around … [Read More]

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Figure 22. Yilgarn Seismic tomography, 300 km depth. hotspot Exploration targeting.

8. Global Exploration techniques. Targeting in the Yilgarn Craton Western Australia (Part 6).

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We will now get into the exploration targeting section of the talk and will start with Australia, down on the lower-right corner of the next figure. This plan shows the … [Read More]

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Figure 13. Mineralisation paths - South America Seismic Tomographic section 5 °S

7. Global mineralising systems. Mineralisation paths through subduction zones in South and North America (Part 5).

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Figure 13. Mineralisation paths – South America Seismic Tomographic section 5 °S. This figure is of the subduction zone under South America at 5° South. The current mobile mantle hypothesis … [Read More]

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