Tag Archives: limestone

Wooster’s Fossils of the Week: Trepostome bryozoans, burrow systems, and bedding features in an Upper Ordovician limestone from southeastern Minnesota

Mark Wilson August 12, 2016 12:01 am

One of the little mysteries on the recent Minnesota research trip by Wooster students, faculty and staff is the origin of thin limestone beds in the middle of the thick shales of the Decorah Formation (Upper Ordovician). How did such … Continue reading →

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The work begins

Mark Wilson July 29, 2016 7:29 am

Rochester, Minnesota — Today we started collecting specimens and data for the Team Minnesota student Independent Study projects. We began with a long drive south to Decorah, Iowa, to measure a thick section of our Upper Ordovician target units at … Continue reading →

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Team Minnesota visits the Upper Ordovician of Iowa

Mark Wilson July 27, 2016 7:27 am

Rochester, Minnesota — Team Minnesota traveled south today to visit exposures of our three favorite formations: the Platteville Limestone, Decorah Shale, and Cummingsville Limestone. Where best to see the Decorah Shale than in Decorah, Iowa? Above the crew is scattered … Continue reading →

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A Wooster Geologist visits the caves of Tel Maresha in central Israel

Mark Wilson March 21, 2016 3:02 am

TEL AVIV, ISRAEL — My last day in Israel was spent with my friend Yoav Avni exploring some sites in the central part of the country before my flight left Tel Aviv late in the evening. The most geological place … Continue reading →

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At some point you must start collecting data

Mark Wilson March 18, 2016 12:18 am

MITZPE RAMON, ISRAEL — Today my friend Yoav Avni (Geological Survey of Israel) and I returned to Makhtesh Gadol to pursue a project with Subunit 65 of the Matmor Formation (Callovian, Middle Jurassic). You may recall this limestone contains an … Continue reading →

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Last day of fieldwork in England: A working quarry and another great unconformity

Mark Wilson June 26, 2015 6:26 am

BRISTOL, ENGLAND (June 26, 2015) — Tim Palmer has a professional interest in building stones, and a passion for sorting out their characteristics and historical uses. He thus has many contacts in the stone industry, from architects to quarry managers. … Continue reading →

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Wooster Geologist in England (again)

Mark Wilson June 25, 2015 6:25 am

BRISTOL, ENGLAND (June 25, 2015) — Our little geological exploration of southern Britain now passes into England. Tim Palmer and I crossed the River Severn and drove to the Cotswolds to examine old quarry exposures and Medieval stonework. We are … Continue reading →

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A great unconformity in South Wales

Mark Wilson June 24, 2015 6:24 am

BRIDGEND, WALES (June 24, 2015) — Today Tim Palmer and I visited a famous unconformable rock plane in South Wales. I last saw it thirty years ago, when I knew a lot less about eroded, bored and encrusted surfaces. It … Continue reading →

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Wooster Geologist in Wales

Mark Wilson June 23, 2015 6:23 am

BRIDGEND, WALES (June 23, 2015) — My train journey yesterday was successful. It was close, but I made the four tight connections and arrived in Aberystwyth, Wales, from Thurso, Scotland, on schedule. It took 15 hours. My friend Tim Palmer … Continue reading →

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A beautiful day for Wooster Geologists in the Silurian of Ohio

Mark Wilson April 18, 2015 7:56 pm

FAIRBORN, OHIO–It’s field trip season at last for the Wooster Geologists. Several geology classes have now been out in Ohio, taking advantage of windows of spectacular weather. Today was one of those days for 25 students in the Sedimentology & … Continue reading →

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