Assertion: oceanic crust | /r/AtLocation | the pacific plate
Facets:
value: offshore of kamchatka
type: LOCATION
Source sentences:
text: For this reason the oldest rocks on Earth are within the cratons or cores of the continents, rather than in repeatedly recycled oceanic crust; the oldest intact crustal fragment is the Acasta Gneiss at 4.01 Ga, whereas the oldest large-scale oceanic crust (located on the Pacific Plate offshore of Kamchatka) is from the Jurassic (