Tag Archives: precambrian

Slieve League, County Donegal, Ireland

Mark Wilson December 20, 2012 4:36 pm

DONEGAL, IRELAND — The above peak sweeping precipitously down into a raging sea is the smaller of the exposures at Slieve League along the southern coast of County Donegal. These are the highest sea cliffs in Ireland, and among the … Continue reading →

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The Grianán of Aileach

Mark Wilson December 20, 2012 3:46 pm

DONEGAL, IRELAND — In the northeastern part of the county, about 7 km west of Derry in Northern Ireland, is Greenan Mountain. On its very top is a spectacular ringfort called The Grianán of Aileach (“the Solarium of Aileach”, shown … Continue reading →

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The wild northwest of Ireland

Mark Wilson December 19, 2012 1:28 pm

DONEGAL, IRELAND — Above is an image of Donegal Bay at sunset. It is striking with its still water, wheeling gulls and glacially-rounded rocky islands. I am in County Donegal for a couple of days simply to see the place … Continue reading →

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Grand Canyon Expedition 2012

gwiles August 9, 2012 6:58 pm

This summer (26 July through 2 August) I had the pleasure to serve as a guest geologist on a rafting trip to the Grand Canyon. The trip logistics were engineered by Doug Drushal under the auspices of Environmental Experiences, Inc. … Continue reading →

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Wooster Geologist on the Crampton’s Gap Battlefield in northern Maryland

Mark Wilson November 26, 2011 8:13 pm

In September 1862, Union forces under General George B. McClellan pursued General Robert E. Lee‘s Army of Northern Virginia through northwestern Maryland. Lee had invaded Maryland to demoralize the North ahead of the November elections, and to convince Europe that … Continue reading →

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