1. Name ____KEY___________________________________________ Earth
Science
Geologic Time
Use the Geologic History of New York Sate (time scale) chart in your ESRT
1) Which geologic time period is most completely represented within the rock record of NY
State?
a. Precambrian b. Devonian c. Triassic d. Tertiary
2) In which geologic periods are there no rocks preserved?
___________Neogene, Paleogene, Permian____________________________
3) What could account for this? ________Weathering and Erosion____________________
__________________________________________________________________________
4) In which segment of geologic history are fossils most rare?
A) Precambrian B) Mesozoic C) Paleozoic D) Cenozoic
5) Which episode of mountain building occurred during the Devonian time period?
____________Acadian Orogeny ________________________
6) During what Era did the dinosaurs live?
________________Mesozoic____________________________
7) How many years did they live for? _____251-65 =_____185 Million Years ____________
8) Fossil species C went extinct how many MYA? _____________251 MYA
____________________
9) What fossil would make the best index Fossil?
a. Z b. F c. C d. R
10) Describe what was occurring on the East coast of N. America during the Jurassic Period.
_______________________Initial opening of the Atlantic Ocean______
11) During what time period was there a subduction zone affecting the East coast of
North America?
______Ordovician- Volcanic Island Arc collision dense igneous rock will subduct
under less dense continental crust
12) What time period did the Appalachian Orogeny occur in? _______Permian___________
13) How did it happen? ____________collision of North America and Africa__
14) During what period did N. America and Africa rift (separate) apart?
________Jurassic ___________________________________________________

2. 15) Describe N. America’s position on the Earth’s surface 460 MYA.
___on the equator_______________________________________________________
16) Describe S. America’s position relative to Africa’s during the Triassic Period.
______next to each other, fit together like a puzzle____________________
Use the Generalized Bedrock Geology of New York State Map in your ESRT
1. Describe the rock of Long Island in terms of age and composition.
________weakly consolidated to unconsolidated gravels, sands, and clays
2. Near which town in NY would you be least likely to find fossils?
a) Old Forge b) Ithaca c) Plattsburgh d) Binghamton
3. Name one rock you might find surrounding the Mt. Marcy area. ____Metamorphic ___
4. Under what process do you think it formed? ______collision of plates ___________
5. Where might you find bedrock exhibiting banding or foliation?
a) Ithaca b) Plattsburgh c) Old Forge d) Binghamton
6. What is the age of the Bedrock of most of the Allegheny Plateau landscape region?
_________Taconic Orogeny is in the Ordovician Period 444 to 488 mya________
7. The tug Erie Ontario Lowlands consist of what type of rock?
____Limestones, shales, sandstones and conglomerates
8. Rocks containing fossils of the earliest plants could most likely be found in the bedrock near
a) Syracuse b) Oswego c) Ithaca d) Old Forge
9. Which landscape region is the result of the advance and retreat of the last continental ice?
___Atlantic coastal Plain = Long Island_________
10. Which of the following landscape features of New York State were most recently formed?
a) The Catskills b) the Palisades sill
c) Finger Lakes d) rocks of the Adirondack Mountains