That the oceanic crust is geologically young and the parallel magnetic striping pattern of basalts is symmetrical about oceanic ridges was conclusively shown by what?
a. radiometric dating of oceanic basalts and sequences from continents
b. the unusually thin layer of oceanic sediments and ages of contained fossils
c. the existence of the same magnetic anomaly patterns in all ocean basins
d. radiometric dating of oceanic basalts and sequences from continents AND the unusually thin layer of oceanic sediments and ages of contained fossils
e. all of these
d. radiometric dating of oceanic basalts and sequences from continents AND the unusually thin layer of oceanic sediments and ages of contained fossils
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Which of the following substances is not a volatile found in magma?
A) O2 B) CO2 C) H2O D) SO2
Fractures along which the rock has slipped relative to the other side are called
A. cracks. B. beds. C. faults. D. joints.
Wind is ________ effective at eroding and transporting materials than other geomorphic agents because its density is ________ that of other geomorphic agents
A) more; higher B) more; lower C) less; higher D) less; lower
What is volcanism, and what types of rocks does it produce? What will be an ideal response?