Quote:
Originally Posted by AstroJunk
Back on the subject of Expanding Earth, what this theory fails to do is explain the known observations outside of simple geometric form. It is very convenient to formulate a convincing argument based on the ignorance of others, and make a great video (I did like the one I watched).
Some problems that EE fails to address:
1. The physical mechanism to grow the earth from the inside to some 4+ times its volume in a mere 200 My
2. Mountain building - Just how did those pesky mountains form in Nepal.
3. Vulcanism at the boundaries of (subducting plates) - no mechanism to explain the Pacific ring of fire.
4. Deep oceanic trenches - shouldn't exist at all in EE.
5. The magnetic signatures of Oceanic rocks - when rock is solidified at the mid-oceanic ridge, it aligns itself with the prevailing magnetic field. This field swaps from n-s to s-n every few million years and it leaves a distinct and measurable pattern which has been surveyed using ship mounted magnetometers. These patterns clearly show the areas of spreading and subduction consistent with Plate tectonics: http://www.geog.unt.edu/~williams/GEOG_1710/science.htm
That is an interesting link i found whilst looking for a image to best demonstrate point 5 as it makes no apology for Geological Science not being able yet to single out the mechanism for Plate Tectonics. However all of the known data supports that model, none of it supports the dross that is EE. |
You've touched on only some of the things EE fails to address....there's a whole swarthe of of geophysical processes and phenomena that it fails to explain, least of which is the internal structure of the planet (division between crust/mantle/core)....then you have things like the geothermal gradient, geophysical boundaries due to mineralogical and crystallographic/structural differences w.r.t. P/T/t changes, mantle plumes, differential rotation between the inner core and the rest of the body of the planet, the planet's magnetic field, the variety of rock types present on the planet, the near complete absence of rocks older than 212 Ma in the ocean basins etc etc etc. The list is endless.