GIANT PLANET CLOUD CONDENSING

Circa -3500my, radial compressive forces, created by globally circulating magma (E), built up thick highly folded, greenstone, rocks. A dumbbell shaped Proto continent resulted from stronger equatorial magma currents. (See Fig-Proto Continent.)



Granite condensed under the mass forming a ridge of older (high-grade) greenstone over younger (low-grade) granite plutons. The landmass (A see Fig-Giant Cloud Condensing.) reached 100km into the giant planet's CO2 & SO2 rich atmosphere, (10-15 times Mt Everest). Ridge sides sloped at 40 over a base width of 250km.This alpine structure provides a unique path for condensing fluids from the cold upper atmosphere to travel rapidly back to the molten surface at (C). {Without a high mountain range, the insulating properties of giant cloud mass layers remain intact. A hot sterile world, similar to that on Venus and Uranus



condenseMassive erosion forces occur with the condensation-evaporation cycle (F) creating thick sequences of conglomerate beds at (B). Some of these remain on Earth today in the Precambrian Witwatersrand system, and at Telfer in WA. In this era, the average surface temperature on Earth was 650 C, well above that for sustaining life. However, colder temperatures existed in the highland lakes associated with the erosion cycle, and anaerobic life forms started to develop.



This period of evolution may be present on Neptune, and somewhat less probably on Uranus, today.

The Proto continental stage of activity on Earth spanned 0.7 billion years from -3500my to -2800my. During this time water and Si-rich planet rings formed through pipe activity and decayed. The Moon became tectonically inactive as the meagre supplies of nuclear fuel ran out. Earth's giant planet phase ended as the cloud mass condensed to form lakes. Major sedimentation occurred, and the molten surface cooled rapidly. Permanent seas quickly followed crustal coast extension. The Proto continent appears to have broken up and reassembled six times before forming the Pangaea land mass. The rest [sic] "is geological history".

The future is continued cooling, reducing humidity, followed by frozen seas in about 50my time.

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