Underground Science #191 - The Galactic Disc

Galactic Disc: https://ordonews.com/the-mystery-of-the-galactic-disc/

Iranian Bowl: https://www.metmuseum.org/art/collection/search/324138

"Philippine Island Arc System Tectonic Features Inferred from Magnetic Data Analysis", Doo et al. (2015): https://www.researchgate.net/publication/287967888_Philippine_Island_Arc_System_Tectonic_Features_Inferred_from_Magnetic_Data_Analysis