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The presence of horsts and grabens indicates the occurrence of?
a. collision activity. b. rift activity. c. strike-slip activity. d. volcanic activity.
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- Anonymous1 decade agoFavorite Answer
I'm all for the Earthmans. It indicates Rift activity caused by over pressure. http://www.springerlink.com/content/y383q27774q43j...
- Anonymous1 decade ago
ummm... actually, "tensional stress"
Which is closest to (B) Rift activity
Source(s): Geologist
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