Tag Archives: Paleogene

Post-Cretaceous Weirdness

Mark Wilson May 22, 2010 4:16 pm

GREENVILLE, ALABAMA — The Cretaceous-Tertiary boundary at Mussel Creek, Lowndes County, Alabama, has some unusual complexity.   At the southern end of the section it is simple enough, as shown in a previous blog post.  Just a few meters north, though, … Continue reading →

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Geological fieldwork in the Deep South

Mark Wilson May 21, 2010 7:40 pm

GREENVILLE, ALABAMA — This is the first time I’ve done fieldwork in the southern USA.  The outcrops are of course very different from my favorite desert locations and oddly similar to those I visited in western Russia last summer.  I’m … Continue reading →

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An intimate visit to the Cretaceous-Tertiary boundary

Mark Wilson May 21, 2010 4:08 pm

GREENVILLE, ALABAMA — It is one of the most famous geological horizons.  It marks the end of the Mesozoic Era and the beginning of the Cenozoic.  The “K/T boundary” is dated at 65.5 million years ago (±0.3 my) and is … Continue reading →

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