Geol 102

Question 1

The lower layers of the Late Paleozoic cyclothem are mainly:

  sandstone and conglomerate 

Question 2

The Mesozoic Era is subdivided into:

  Triassic, Jurassic and Cretaceous 

Question 3

A very distinctive feature of Jurassic Navajo sandstone , Utah is:

  large scale cross-stratification 

Question 4

The rocks of the Coast Ranges, Franciscan Complex, formed as a massive pile of rock and sediment in an ancient ___________________.!

  accretionary prism setting 

Question 5

Which of the following is known as the Age of Mammals:

  Cenozoic 

Question 6

Late Paleozoic  repetitive cyclothems  were caused by:

  transgressive-regressive oscillations 

Question 7

The first phase of Cordilleran orogenies in Western N. America  took during Late Jurassic and Early Cretaceous and it's know as the:

  Nevadan orogeny 

Question 8

During the Cretaceous, _________________deposits built up over most of the planet.

  chalk 

Question 9

Which of the following formed by extension of Pangean crust:

  Hartford basin, Connecticut 

Question 10

Mesozoic was the "heyday" of: 

  ammonoids 

Question 11

Late Paleozoic collision of Gondwanaland with North America and Europe resulted in the uplift of:

  Appalachian and Hercynian orogenies 

Question 12

 The largest mass extinction took place at the end of the:

  Permian 

Question 13

 Fine chalk of Niobrara formation from Western Kansas formed during the:

  Cretaceous transgression 

Question 14

Mesozoic was dominated by the tectonic effects of the:

  breakup of Pangea. 

Question 15

The Triassic Newark rifts were formed by:

  Faulting that initiated by stretching of the Pangean crust 

Question 16

Suspect terranes have distinct stratigraphy, rock types and are separated from adjacent terranes by:

  faults 

Question 17

The Rio Grande rift was formed by:

  Middle and Late Cenozoic crustal extension 

Question 18

Western North America is largely a collage of ancient:

  arcs and microcontinents derived from other places. 

Question 19

The huge flood basalt of the Deccan, India , erupted during:

  Late Cretaceous 

Question 20

The maximum global sea level rise,~ 350 m, above present sea levels took place during:

  Cretaceous 

Question 21

True or False: The current topography of the Rocky Mountains primarily reflects the beveling