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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.

2 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    I'm all for the Earthmans. It indicates Rift activity caused by over pressure. http://www.springerlink.com/content/y383q27774q43j...

  • Anonymous
    1 decade ago

    ummm... actually, "tensional stress"

    Which is closest to (B) Rift activity

    Source(s): Geologist
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