Igneous rock names are based on grain shape and chemical composition.
Answer the following statement true (T) or false (F)
False
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Hazards associated with basaltic lava flows and eruptions are:
a) burial of roads and neighborhoods by lava flow b) house fires c) floods from catastrophic melting of ice d) all of the above e) a and b only
Geologists may choose to lick a mineral to identify it. What mineral is the geologist expecting with this test?
A) NaCl (halite) or KCl (sylvite) B) a sulfide bearing rock which will taste like rotten eggs C) None, it clears the dust off the sample so he/she can see if more clearly. D) None, they are clearing the hydrochloric acid from the sample to rerun a test for calcite.
Which of the following is NOT a common setting in which a terrane originally forms?
A. oceanic plateau B. linear island chain C. oceanic crust D. island arc E. All of these are common settings for a terrane.
Briefly describe what is meant by the term pioneer species. Identify the general characteristics of pioneer species, and give an examples of pioneer species
What will be an ideal response?