1.This question has not been answered completely High Cretaceous sea levels due
ID: 160959 • Letter: 1
Question
1.This question has not been answered completely
High Cretaceous sea levels due to the opening of the Atlantic ocean resulted in:
A. Accumulation of thick sequnces of salt widely over the N. American continent
B. Erosional unconformities over the N. American craton
C. Accumulation of thick sequnces of shale and chalk widely over the N. American continent
Point Value: 2
2.This question has not been answered completely
Synapsid vertebrates dominated the coniferous landscapes in the Triassic and were replaced in the Late Triassic by:
A. trilobites
B. Dinosaurs
C. brachiopods
Point Value: 2
3.This question has not been answered completely
In Europe, Triassic evaporites had been deposited in earlier phase of:
A. collission
B. rifting
C. subduction
Point Value: 2
4.This question has not been answered completely
All over the Rocky mountain region, Triassic deposits are predominantly:
A. red beds
B. black shale
C. greywacke
Point Value: 2
5.This question has not been answered completely
Jurassic Navajo sandstones in Utah are characterized by:
A. impact craters
B. large scale cross-stratification
C. trilobites
Point Value: 2
6.This question has not been answered completely
During the Mesozoic, the last significant carbonate and evaporite deposition took place during:
A. Cretacous
B. Late Jurassic
C. Triassic
Point Value: 2
7.This question has not been answered completely
Coastal sand dunes of the Namibian Desert in S.W Africa is a close analogue for:
A. lower jurassic Navajo Sandstone of Utah
B. Lower Cretacous limestone of Utah
C. Triassic salt of Michigan
Point Value: 2
8.This question has not been answered completely
____ percent of western N. America is suspect in origin:
A. 30
B. 40
C. 50
D. 70
Point Value: 2
9.This question has not been answered completely
The largest exotic terrane in Western N. America is:
A. Wrangellia
B. Sonomia
C. Nazca
Point Value: 2
10.This question has not been answered completely
The top of the Sierra Nevada has been ground flat by:
A. Earthquakes
B. volcanic activity
C. Glaciers
Point Value: 2
11.This question has not been answered completely
Franciscan melange was scrapped off the downgoing:
A. Gondwana plate
B. Nazca plate
C. Farallon and Kula plates
Point Value: 2
12.This question has not been answered completely
The final phase of Cordilleran mountain building in Western N. America Known as:
A. Caldonian orogeny
B. Antler orogeny
C. Laramide orogeny
Point Value: 2
13.This question has not been answered completely
Paleomagnetic evidence suggests that the paleoequator was approaching its present relative position by:
A. Late Jurassic time
B. Late Cretaceous time
C. Late Paleozoic
Point Value: 2
14.This question has not been answered completely
The absence of evaporites from Cretaceous sediments suggests:
A. Humid conditions over N. America
B. evaporative conditions over N. America
C. None of these
Point Value: 2
15.This question has not been answered completely
Cretaceous was named from the latin word "Creta" which means:
A. salt
B. meteorite
C. chalk
Point Value: 2
16.This question has not been answered completely
Mesozoic was the "heyday" of:
A. trilobites
B. brachiopods
C. ammonoids
Point Value: 2
17.This question has not been answered completely
Cretaceous strata have long been important sources of:
A. Petroleum and coal
B. Salt
C. gypsum
Point Value: 2
18.This question has not been answered completely
Late Cretaceous fossil plants in N. America indicate:
A. N. America was close to the N. Pole
B. N. America was close to the S. Pole
C. mild temperate to subtropical cconditions
Point Value: 2
19.This question has not been answered completely
Major periods of ancient black shale deposition (like that of the Cretaceous) corresponds with:
A. times of unusually shallow transgression
B. times of unusually deep transgression
C. times of unusually deep erossion
Point Value: 2
20.This question has not been answered completely
By the end of Mesozoic, _________dominated the land.
A. ammonoids
B. millipedes
C. flowering plants
Explanation / Answer
1) C. Accumulation of thick sequnces of shale and chalk widely over the N. American continent
2) B. Dinosaurs
3) B. rifting
4) A. red beds
5) B. large scale cross-stratification
8) D. 70
9) Glaciers
11) C. Farallon and Kula plates
12) B. Late Cretaceous time
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.