Welcome to the worlds of the language wars! See http://en.wikipedia.org/wiki/Dike_(geology) for the definitions but be aware that in Australia this geological phenomenon is spelt dyke.

The dyke is a dolerite. The rock it is intruding is a granite.

This particular dyke is exposed in an abandoned quarry near Mannum in South Australia on the banks of the Murray River.


dike, dolerite, dyke, geology, granite, igneous, mannum, murray, quarry, rock


  • Virginia McGowan
    Virginia McGowanalmost 6 years ago

    I find this absolutely facinating , …:-)))

  • Geology is like that.

    – GeoGecko

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