
The SciencesNovember 1, 1985
Terranes
They are fault-bounded blocks of crust that accrete to the ancient cores of the continents. The process makes the continents increase in extent and reworks them into what amount to geologic collages

Terranes
They are fault-bounded blocks of crust that accrete to the ancient cores of the continents. The process makes the continents increase in extent and reworks them into what amount to geologic collages