The glaciation process is when glaciers grind on rocks and these minerals mix with the water to form glacial "milk" that flows out to the sea. This is where the sea minerals come from to begin with. There are ways to grind rock (basalt) and add it to the soil for superior mineralization and that is known as rock dust.
Charred biomass is one of the crucial components that needs to be added to the soil so the soil organisms have a good home, bio-available carbon is available to the plants, water retention is increased as well as other benefits.
These soil organism are symbiotic with the roots of different plants. They attach to the roots and grow as extensions of the roots, which gives more surface area to uptake nutrients and water. These organisms have a choice home, which is charred biomass (biochar). These organisms break down the rock minerals and make them available to the plant.