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A wave-cut cliff face near McGregor Point, Ma'alaea Bay, south Maui. This exposure displays cross-sections of two overlapping lava flows. You can just make out the line of the the old erosional surface (marked by the green shrub at the far right of the exposure) cut into the horizontal beds of the older lava flow; this surface was subsequently covered and filled in by the younger flow. This feature could be considered to be a kind of igneous-on-igneous rock unconformity.
Just offshore of McGregor Point on west Maui, the numerous gullies and smaller streambeds that drain the southermost flanks of the West Maui Mountains can be seen as dark-green veins of vegetation standing out against the sparser, lighter-colored vegetation of the dry parts of the slopes. In this photo, the south-facing slopes of the West Maui Mountains are unusually green after a long spate of winter rain storms. The rest of the year, this part of the volcano is in the rain shadow of the leeward side of the island, and the slopes are a dull brown color.
A wave-cut cliff face near McGregor Point, Ma'alaea Bay, south Maui. This exposure displays cross-sections of two overlapping lava flows. You can just make out the line of the the old erosional surface (marked by the green shrub at the far right of the exposure) cut into the horizontal beds of the older lava flow; this surface was subsequently covered and filled in by the younger flow. This feature could be considered to be a kind of igneous-on-igneous rock unconformity.
A wave-cut cliff face near McGregor Point, Ma'alaea Bay, south Maui. This exposure displays cross-sections of two overlapping lava flows. You can just make out the line of the the old erosional surface (marked by the green shrub at the far right of the exposure) cut into the horizontal beds of the older lava flow; this surface was subsequently covered and filled in by the younger flow. This feature could be considered to be a kind of igneous-on-igneous rock unconformity.
A wave-cut cliff face near McGregor Point, Ma'alaea Bay, south Maui. This exposure displays cross-sections of two overlapping lava flows. You can just make out the line of the the old erosional surface (marked by the green shrub at the far right of the exposure) cut into the horizontal beds of the older lava flow; this surface was subsequently covered and filled in by the younger flow. This feature could be considered to be a kind of igneous-on-igneous rock unconformity.
See photo in original gallery.
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