Rapid cooling of magma results in a fine-grained ...

[Cooldude101]

Rapid cooling of magma results in a fine-grained ___________________ _ texture. Slow cooling of magma results in a course-grained ___________________ _ texture.
 Fill in the blank(s) with correct word

Question 2

By ____ years ago, much of Greenland, central Canada, and the north central United States formed one large craton.
 A)1.8 million
 B)2.0 billion
 C)1.6 billion
 D)1.6 million
 E)1.8 billion

[LVPMS]

Answer to Question 1

aphanitic, phaneritic

Answer to Question 2

E

[Cooldude101]

Thanks for the timely response, appreciate it

[31809pancho]

Gracias!