• 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 26. Post Late Heavy Bombardment tectonism forms the first Earth Cycles.

Earth Evolution. Third stage. Post Late Heavy Bombardment Tectonism forms EARTH-CYCLES (part 9).

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Figure 26. Earth seismic tomography at 200 km depth showing relative block movements, the mid-Atlantic ridge and global subduction and uplift areas. The AusIMM webinar I did on this new … [Read More]

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Figure 20. Earth Evolution second stage, Extended Late Heavy Bombardment ELHB.

Earth Evolution Second stage, 4.47 to 3.5 Ga. Extended Late Heavy Bombardment forms upper 600 km lithosphere (part 8).

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Figure 20 above. Earth Evolution second stage, Extended Late Heavy Bombardment ELHB. My contention is that the Late Heavy Bombardment should be called the Extended Late Heavy Bombardment because there … [Read More]

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