Figure 61. Seismic Tomographic section from Pacific Ocean to Arabia showing continuity of brittle lithosphere, Pacific subduction, Mid Atlantic Ridge and Europe/Africa collision geological features. General description. View the AusIMM … [Read More]
Visit the AusIMM Webinar at https://www.ausimm.com/videos/community-event/south-west-wageoscience-society—digital-tech-talk-new-discoveries-in-the-structural-geology-mineralization–exploration-targeting-of-north-america/ .
Seismic tomographic research under North and South America, Africa and Eastern Europe from 170 – 550 km depth shows giant ring structures. It is suggested these formed before or during the Late Heavy Bombardment from 4.1 to 3.8 billion years ago. They exist from the surface down to at least 600 km depth. These relatively undeformed rings occur in the supposed mobile mantle. So, Earth down to 600 km depth is not mobile and so the evolution of Earth by earth-wide Plate Tectonics cannot be correct and needs revision.
North American structural geology with exploration targeting plans for oil and gas and metals. Linears and rings show brittle structural geology at 550 km depth – right in the middle of the mobile mantle. See the AusIMM webinar on; https://www.ausimm.com/videos/community-event/south-west-wageoscience-society—digital-tech-talk-new-discoveries-in-the-structural-geology-mineralization–exploration-targeting-of-north-america/ .