science

Good explanation but if I can TL;DR something here that is basic but a lot of geologists don't explicitly introduce as context to lay people because they are silly...

Think of earth as a lava lamp where hot goop rises to the surface and cools into new surface area at mid-ocean spreading ridges and is shunted along the conveyor belt of plate tectonics along until being forced back down underneath another plate and recycled back into goop.

Material is recycled this way, what is significant is this might be a sample of OG earth goop and it might suggest some of the OG earth goop doesn't mix well with modern earth goop and it might influence modern indigestion in earth as in Hawaii or Yellowstone type stuff.

Remember, we are talking about goop in a lava lamp here, ostensibly it is always mixing so somehow finding a bit of goop that has remained isolated in composition for a long time is going to be fascinating to big lava lamp nerds.