structural geology

Figure 43. Seismic tomography section from Sumatra to Nasca Plate with surface and 2775 plans.

Southern Hemisphere research from surface to core using Seismic Tomographic sections. Part 12.

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In figure 40 (in part 11) we examined section M-N across Africa and noted that the lithosphere under Africa down to the Outer Core is brittle. Is this a one-off … [Read More]

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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 18, Earth seismic tomography enhanced from 60 - 1775 km depth.

Earth Evolution – The earliest massive bombardment forms huge ring structures (part 7).

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What do these giant ring structures look like in plan view? Are they caused by the earliest massive bombardment at 4.57 Ga? The AusIMM webinar I did on this new … [Read More]

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