Monthly Archives: July 2010

A Great Unconformity

sjudge July 16, 2010 9:02 pm

I almost forgot our quick side trip at the end of the day. With the Green River Formation behind us (literally, in this photo), we turned to view a fantastic example of an angular unconformity here in central Utah. Although … Continue reading →

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If We Only Had a Rock Saw in the Field…

sjudge July 16, 2010 8:56 pm

Today was our final day on one of the Green River cuestas. We decided to top it off by working a quite extensive section of the formation with a great climb to reach the stromatolites. However, the climb was completely … Continue reading →

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To the Victor Goes the Spoils…

sjudge July 16, 2010 8:32 pm

The Utah gang was back at it in the Green River Formation, which is exposed in one of the cuestas in the Sanpete Valley. It was a wonderful 100 degrees by midafternoon, and I think that even the fossil ostracodes … Continue reading →

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The utility of trace fossils

Mark Wilson July 16, 2010 5:05 pm

LOGAN, UTAH–Today we hiked north of Tony Grove Lake in Logan Canyon to explore an Ordovician sequence of rocks. The most interesting unit (to my surprise) was the Swan Peak Quartzite, an orange-brown unit at the base of a white … Continue reading →

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Ancient shorelines

Mark Wilson July 16, 2010 4:09 pm

LOGAN, UTAH–The Wooster geology team currently in central Utah pointed out in the distance Pahvant Butte which has a set of relict shorelines from the famous — and immense — Lake Bonneville. In the spirit of sharing common field experiences … Continue reading →

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Hey Icelandic Researchers, We’ve Got Some Basalt, Too!!

sjudge July 15, 2010 11:11 pm

After many successful field days in sedimentary strata, yesterday we had a day of exploration. We traveled with the Ohio State field camp to Fillmore, Utah, to investigate the Black Rock Desert. Specifically, we spent our time in the Ice … Continue reading →

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Cutting through the Paleozoic in northern Utah

Mark Wilson July 15, 2010 10:28 pm

LOGAN, UTAH–Logan Canyon cuts perpendicularly through the Bear River Range in Cache County, northern Utah. It neatly dissects a complex section of Paleozoic sedimentary rocks in the Logan-Huntsville Allochthon noted in my last post. Conveniently, US Highway 89 runs through … Continue reading →

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Let the Work Begin

mpollock July 15, 2010 1:30 pm

Guest blogger: Becky Alcorn Today was our first day of field work in Undirlithar quarry. Although a lot of the quarry has been filled in in the last year, we had a very successful day and found three dikes that … Continue reading →

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Yet another Wooster geologist in Utah

Mark Wilson July 14, 2010 11:19 pm

LOGAN, UTAH–I’m here to spend a few days with my parents who are “summer citizens” on the Utah State University campus. Logan is in the far northeastern corner of Utah near Idaho.  Like all of the state, it has fascinating … Continue reading →

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The Golden Circle Tour

mpollock July 14, 2010 6:09 pm

Guest Blogger: Becky Alcorn Today we took the Golden Circle tour in Iceland. I think I saw more amazing geologic sites on this one tour than I’ve ever seen before. Our tour began at Thingvellir in the rift valley where … Continue reading →

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