Flashcards
Phanerozoic [Mesozoic] (26)
Flashcards do conjunto (7)
- 1What 4 continents were around on Earth during the Silurian & Devonian?Laurentia
Baltica
Siberia
Gondwana - 2☼Where is Laurentia during Mesozoic?☼Still on the equator, slowly rotating counter-clockwise
- 3☼What is the Taconic Orogeny?☼-Volcanic islands collided with east North America.
-Taconic Mts. eroded, producing lots of sediments (clastic wedge) - 4What is the Acadian Orogeny?Avalon collided with Laurentia
-Produced the Acadian Mts.
-Folds, faults, metamorphism, igneous intrusions
-Erosion of mts. produced a thick clastic wedge called Catskill Delta - 5What is the Caledonian Orogeny?-Baltica collided with Laurentia
-Devonian
-Made the Caledonian mts.
-Erosion of Mts. made a clastic wedge - 6What is Laurussia (a.k.a. Euramerica; a.k.a. Old Red Sandstone Continent)?A single continent
- 7☼What two continents collided to form Laurussia?☼Laurentia + Baltica