Final answer:
The continental crust was first formed during the Archean eon in geologic history. One of the earliest continents formed during this time is Gondwana. The formation of continental crust occurred after the Hadean eon.
Step-by-step explanation:
The continental crust was first formed during the Archean eon in geologic history. The Archean eon lasted from approximately 4 to 2.5 billion years ago. During this time, the Earth's crust began to cool and solidify, leading to the formation of the earliest continents.
One of the earliest continents formed during the Archean eon is called Gondwana, which was located near the equator. Gondwana was part of the Paleozoic era, which is the earliest of the three geologic eras of the Phanerozoic eon. The Paleozoic era lasted from approximately 541 to 252 million years ago.
It is important to note that the Hadean eon is the earliest eon in geologic history, but the formation of continental crust occurred during the subsequent Archean eon.