Per Fabrica Ad Astra World Generation & Geomes

The mod utilizes a custom generation engine to create realistic geological profiles. The world is divided into "Geomes" (geological biomes) which determine the sequence of rock layers from the surface to bedrock.

• Continental Crust: Dominated by Mudstone, Granite, and Diorite. This is where most sedimentary and metamorphic rocks are found.
• Oceanic Crust: Dominated by Basalt and Gabbro. These areas have thinner sedimentary layers, often consisting of Limestone and Claystone.
• Mountain Peaks: Often capped with resistant rocks like Quartzite or Gneiss, while volcanic peaks are composed of Basalt or Rhyolite.