Author Archives: mwilson

About mwilson

Mark Wilson is an emeritus Professor of Geology at The College of Wooster. He specializes in invertebrate paleontology, carbonate sedimentology, and stratigraphy. He also is an expert on pseudoscience, especially creationism.

Igneous delights at Amboy Crater and in the Granite Mountains

mwilson March 16, 2011 11:13 pm

ZZYZX, CALIFORNIA–This afternoon the Wooster geologists studied two very different magma products in the southern part of our field area. After lunch we drove to Amboy on historic Route 66 and then hiked up to the rim of Amboy Crater. … Continue reading →

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Structural geology and mineralogy at Calico

mwilson March 16, 2011 10:58 pm

ZZYZX, CALIFORNIA–It was surprisingly cool this morning in Zzyzx as we left for our day of fieldwork, but we were not surprised by the wind at our first stop, Calico Ghost Town outside Barstow. Every time we’ve been there it … Continue reading →

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Plunging into Lake Manix

mwilson March 15, 2011 11:11 pm

ZZYZX, CALIFORNIA–East of Barstow and west of Afton Canyon was a very large pluvial lake during the Pleistocene. This Lake Manix was hundreds of feet deep, and its catastrophic drainage through Afton Canyon about 185,000 years ago must have been … Continue reading →

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A morning with the Barstow Formation

mwilson March 15, 2011 10:48 pm

ZZYZX, CALIFORNIA–It is hard to believe that the Mojave region once had vast lakes, erupting volcanoes and a diverse mammalian fauna including camels and horses. The most important record of this time is the Barstow Formation (Miocene — about 15 … Continue reading →

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Death Valley Day

mwilson March 14, 2011 11:01 pm

ZZYZX, CALIFORNIA–Our Wooster geological crew awoke to a spectacular sunrise over the Soda Lake playa this morning. We drove north from Zzyzx through Baker and Shoshone into Death Valley by way of Jubilee Pass. The weather could not be better … Continue reading →

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Wooster Geologists return to the Mojave Desert

mwilson March 13, 2011 10:59 pm

ZZYZX, CALIFORNIA–All four geology faculty members, our administrative coordinator Patrice Reeder, Jesse Wiles and eight students have safely arrived at the Desert Studies Center in the delightful Zzyzx.  We spent a few hours exploring the Jurassic sandstones exposed in the … Continue reading →

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Wooster Geologist safe in Japan

mwilson March 13, 2011 3:20 am

HORONOBE-CHO, HOKKAIDO, JAPAN–I am relieved to report that my friend and fellow Wooster Geology classmate Kaz Aoki and his family survived last week’s devastating earthquake and tsunami. Kaz, his wife Sachiko, their four daughters and their new son-in-law all are … Continue reading →

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Wooster’s Fossil of the Week: A sweet local scallop (Lower Carboniferous of Wooster)

mwilson March 13, 2011 1:56 am

The delicious scallop has a long, long history. Wooster’s variety, known as Aviculopecten subcardiformis, is about 345 million years old. The beauty above was found in the Logan Formation, a conglomeratic sandstone that underlies much of the city, including the … Continue reading →

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Wooster’s Fossil of the Week: A tiny sclerobiont community (Middle Jurassic of Poland)

mwilson March 6, 2011 1:15 am

This delightful little community is the subject of a current research project that developed from Independent Study fieldwork in 2006. Elyse Zavar (’07) and I traveled to southern Poland to work on Jurassic fossils associated with a carbonate hardground at … Continue reading →

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Wooster’s Fossil of the Week: The ‘osses ‘ed clam (Upper Jurassic of southwestern England)

mwilson February 27, 2011 1:16 am

Katherine Nicholson Marenco (’03) and I did delightful fieldwork on the Isle of Portland in Dorset, England, during the summer of 2002. We collected fossils from the famous Portland Limestone (Upper Jurassic) in a series of working quarries. Katherine completed … Continue reading →

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