#WhatAGeologistSees
Not a carbonates guy, but suspect this is “black marble”…which could be marketed as just about anything…but likely “Black Granite”!
@alice.bsky.sh you should consider refactoring the heatmap to use the AppView so you don't need to log in - just change the BskyAgent from
service: "https://bsky.social"
to
service: "https://api.bsky.app"