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  • 8Hd1.4_Tuff
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  • Rock, Tuff, Weathering
  • IMG_1975
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  • Holidays etc., Igneous, Longmans, Namibia 2005, Rock
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  • © Mark Levesley
  • IMG_1977
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  • Dragon's back mountains.
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  • Holidays etc., Longmans, Namibia 2005, Rock
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  • © Mark Levesley
  • IMG_1979
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  • The black ridge on these mountains is caused by magma being pushed up through a crack in the rock and setting hard to form black dolerite (basalt).
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  • Holidays etc., Igneous, Longmans, Namibia 2005, Rock
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  • © Mark Levesley
  • IMG_1981
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  • Holidays etc., Igneous, Longmans, Namibia 2005, Rock
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  • © Mark Levesley
  • IMG_1984
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  • Holidays etc., Igneous, Longmans, Namibia 2005, Rock
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  • © Mark Levesley
  • IMG_1985
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  • Holidays etc., Igneous, Longmans, Namibia 2005, Rock
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  • © Mark Levesley
  • IMG_1987
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  • Holidays etc., Igneous, Longmans, Namibia 2005, Rock
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  • © Mark Levesley
  • IMG_1988
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  • Holidays etc., Igneous, Longmans, Namibia 2005, Rock
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  • © Mark Levesley