Before revision: Alcove , is the geographical and geological term for a steep-sided hollow in the side of an exposed rock face or cliff of a homogeneous rock type, that was water eroded.Allaby, Michael, Editor, Oxford Dictionary of Earth Sciences, Third Edition, Oxford University Press, Oxford, 2008 from academia.edu accessed October 21, 2018.
After revision: Alcove is the geographical and geological term for a steep-sided hollow in the side of an exposed rock face or cliff of a homogeneous rock type, that was water eroded.Allaby, Michael, Editor, Oxford Dictionary of Earth Sciences, Third Edition, Oxford University Press, Oxford, 2008 from academia.edu accessed October 21, 2018.