The formation of the Midcontinent rift was ____________________ ...

[V@ndy87]

The formation of the Midcontinent rift was ___________________ _ in time with the Grenville
  orogeny. Fill in the blank(s) with the appropriate word(s).

Question 2

The rock assemblage of sandstone, carbonate, and shale represents deposition on a(n)
  ___________________ _ continental margin. Fill in the blank(s) with the appropriate word(s).

[Carissamariew]

Answer to Question 1

contemporaneous

Answer to Question 2

passive

[V@ndy87]

Thanks for the timely response, appreciate it

[bigcheese9]

TYSM