# James Maxlow Back to [[Expanding Earth and Plate Tectonics]] **Role:** author of "Expansion Tectonics". Nikolov cites "Maxlow (2012)" for the past-radius curve in his paleogravity chart ⚠️ (the 2012 item was not identified). - **PhD, Curtin University (2001):** *Quantification of an Archaean to Recent Earth Expansion Process Using Global Geological and Geophysical Data Sets* ([hdl:20.500.11937/2423](http://hdl.handle.net/20.500.11937/2423)). - **Model:** small-Earth globes built from the ocean-age map by removing ocean crust in age steps. The late-Permian Earth is about 50% of today's radius, and the Archean Earth about 1,700 km ([jamesmaxlow.com](https://www.jamesmaxlow.com/ancient-earth-radius/)). - **Problems:** the model has no subduction and needs a large mass source. It conflicts with space geodesy (0.1 ± 0.2 mm/yr) and paleomagnetic radius limits. See [[Research and Observations]]. - He self-publishes books on the topic, including *Terra non Firma Earth* ⚠️ (title from memory).