Tag Archives: Cretaceous

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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Another beautiful fossil hard substrate

Mark Wilson May 21, 2010 8:03 pm

GREENVILLE, ALABAMA — I have a soft spot for hard places.  (Always wanted to say that!)  Much of my career has been spent studying marine hard substrates and the communities that have evolved on and in them.  These include rocks, … 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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First Wooster talk at the 2009 GSA meeting

Mark Wilson October 19, 2009 12:27 am

PORTLAND, OREGON–By now I’ve given over 35 talks at annual Geological Society of America meetings, but I still get as nervous as I did as a graduate student. The cavernous room, the high quality of the previous presentations, the people … Continue reading →

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A Bit of Vertebrate Paleontology

Mark Wilson September 9, 2009 8:13 am

MAKHTESH RAMON, ISRAEL–On my last day of fieldwork Yoav took me to some wonderfully complex exposures of Cretaceous and Tertiary rocks just north of Makhtesh Ramon. They tell a story of the origins of the Makhtesh anticlinal structure, especially the … Continue reading →

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Urban Dinosaurs

Mark Wilson May 27, 2009 8:24 am

My last geological fieldwork (if we can call it that) in Israel on this trip was to examine the Upper Cretaceous limestones and dolomites exposed in Jerusalem. I far prefer my rocks be found in pristine wilderness areas with only … Continue reading →

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