An erosional surface separating parallel sedimentary rock layers is called:
a) disconformity
b) basal conglomerate
c) nonconformity
d) boundary layer
e) angular unconformity
Ans: a) disconformity
You might also like to view...
Which of the following atmospheric layers has the greatest density?
a. Thermosphere. b. Troposphere. c. Stratosphere. d. Mesosphere.
What were the differences between early Spanish colonias, pueblos, villas, and ranchos in the Southwest?
What will be an ideal response?
Why did the tourism industry in Hawai'i decline during the first decade of the 21st century?
What will be an ideal response?
Lichens play a special role in chemical weathering by
A. weakening the hydrogen bond in water, making it more effective at dissolving rocks with high quartz concentrations. B. secreting oxalic acid, which dissolves carbonates particularly well. C. slowing the rate of jointing in rocks. D. acting as a catalyst for dissolution of minerals that crystallize at the highest temperatures.