Team Utah 2015

August 6th, 2015

Guest bloggers: Julia Franceschi and Mary Reinthal

What do you get when you have zero cloud coverage, 90-degree heat, and a desert? Aside from the start of a bad joke, you get a snippet of the College of Wooster geology’s 2015 expedition to Black Rock desert Utah. It was here that some of the College’s senior geology students—Krysden Schantz, Michael Williams, and Kelli Baxstrom—collected some sunburns and samples for their Senior Independent Studies. These research projects range anywhere from trying to figure out the date of the lava flow to mechanisms of emplacement (e.g., channelized vs. inflated flows). Some of the students that went, however, went because they were able-bodied field assistants who could handle the heat. Geology major Julia Franceschi said this about her field assisting experience:

“Utah was extremely hot and there were some days (and by some days I mean everyday) where 3 liters of water were not enough. But we managed to get a lot of good data, even though my boots took a beating (R.I.P). ”

Chloe Wallace and Julia Franceschi use the Trimble GPS to make cm-scale measurements of the topography.

Chloe Wallace and Julia Franceschi use the Trimble GPS to make cm-scale measurements of the topography.

When the plane finally landed in Salt Lake City, Utah, a 2 ½ hour drive took the crew to Fillmore, the location of their field site. The first day, Friday, started around 11AM, but the crew learned quickly that the earlier they started, the less intense the sun (and heat) was.

Team Utah meeting to distribute equipment and plan the field day.

Team Utah meeting to distribute equipment and plan the field day.

Like for most groups, the first day was devoted as a get-accustomed-to-the-field day, that entailed some reconnaissance and exploration. The rest of the week was spent doing eight hours a day of research and studies. According to Dr. Meagen Pollock, walking on a’a is “nonsense” and more often than not, each day was faced with new challenges. Chloe Wallace and Julia conducted high resolution GPS location and elevation data. Dan Misinay took photographs and helped Krysden conduct transects to record vegetative cover. Michael and Kelli spent most of their days mapping the area and attempting to understand volcanic features. Some days, however, were graced with the occasional snake or rainbow to change up the scenery. It was a successful trip.

One of our lizard friends.

One of our lizard friends.

A snake friend, warming itself in the morning sun. Photo credit: Dan Misinay

A snake friend, warming itself in the morning sun. Photo credit: Dan Misinay

Kelli and Dr. Judge measuring striae.

Kelli and Dr. Judge measuring striae.

Krysden is in her element among the lavas.

Krysden is in her element among the lavas. Photo Credit: Dan Misinay

Contemplating lava emplacement clearly brings joy to Michael.

Contemplating lava emplacement clearly brings joy to Michael. Photo Credit: Dan Misinay

Dan helps Krysden with her vegetation survey.

Dan helps Krysden with her vegetation survey.

We were treated to a double rainbow over our field site after a light sprinkle in the desert.

We were treated to a double rainbow over our field site after a light sprinkle in the desert.

And a show of wild flowers! Photo Credit: Kelli Baxstrom

And a show of wild flowers! Photo Credit: Kelli Baxstrom

Team Utah proudly representing Wooster Geologists!

Team Utah proudly representing Wooster Geologists!

Pillows, and Dikes, and Bears. Oh My!

June 28th, 2014

Guest Bloggers: Mary Reinthal, Julia Franceschi, and Liz Plascencia

Greetings from Smithers, British Columbia! It is day three on the road and we are less then 2 days away from arriving at our field site – Pillow Ridge here we come! So far we have seen an array of fascinating geological features, including massive walls of pillow lavas, dikes, glacial deposits, and water falls all at Wells Gray Provincial park. The stunning landscape and picturesque views have impressed all of us.

20140627-234355-85435269.jpg Roadside geology where the crew is looking at a dike that intrudes tuff-breccia at Second Canyon in Wells Gray Provincial Park. Photo credit: Liz Placenscia

20140627-235010-85810903.jpgHere’s an example of a pillow lava with a fractured glass rind, like the ones we’ll see in Pillow Ridge.

20140627-235333-86013931.jpg We also got to see a few of the 39 named Wells Gray waterfalls, like this one, Spahats Falls, with its fantastic columnar-jointed lava flows.

20140628-000004-4876.jpg Three bears have been sighted on the trip thus far. Here’s one that we saw along the side of the road, munching on some grass. Photo credit: Liz Placenscia

B.C. Bound Part II: Here’s to Not Getting Eaten by Bears

June 25th, 2014

Guest Bloggers: Julia Franceschi and Mary Reinthal

A little over a week ago at Spoon market in downtown Wooster, we met our research collaborators from Dickinson College. Although it was the first time we met rising junior Liz Plascencia and Dr. Ben Edwards, after a little talking and a lot of food, it seemed like we had known them for years.

It turns out Liz is just like us: she loves the outdoors, she doesn’t want to get eaten by a bear in the field (*potentially*) and, of course, she loves rocks. It was a good sign for the weeks to come, because together, we prepared mentally and physically for the impending two-week trip to British Columbia, Canada (maybe not mentally, but we definitely went to the gym together).

PREP WORK/ WHY WE ARE GOING:

Pillow Ridge in British Columbia has exceptional pillow lava exposure. These pillows were created by subglacial volcanic features, and were subsequently sheared by a retreating glacier, thus making for an excellent work site to study these lavas. It is our hope to observe, characterize, and model the pillow-dominated area for reconstruction of the stratigraphy, and study a variety of pillow samples for geochemical analysis.

So in the weeks preceding the trip to Pillow Ridge, Wooster students Adam Silverstein, Mary Reinthal, Julia Franceschi (and of course Liz) did a lot of preparation from previously collected samples from the area. We made pressed pellets, fused glass beads, picked glass chips for volatile analysis. It wasn’t all physical work. Sometimes we read papers on pillow lavas for three hours in Broken Rocks over coffee with Dr. Pollock. Sometimes we did equipment checks and learned how to use a Brunton compass. It was a very “independent minds working together”-type atmosphere, but everyday was a lot of fun. See below for an exciting array of pictures portraying the lab work. 

This is the much talked about Liz Plascencia (with 9/10 of Adam Silverstein). They are in the process of weighing samples.

This is the much talked about Liz Plascencia (with 9/10 of Adam Silverstein). They are in the process of weighing samples.

This is a happy teaching moment at the XRD. Pictured is the one and only Dr. Pollock, and one of the tree-ring-lab students, rising sophomore Sarah McGrath.

This is a happy teaching moment at the XRD. Pictured is the one and only Dr. Pollock, and one of the tree-ring-lab students, rising sophomore Sarah McGrath.

This is rising Junior Mary Reinthal doing major and trace element graphs on Excel. Doesn’t she look happy? Because she loves geology, that’s why.

This is rising Junior Mary Reinthal doing major and trace element graphs on Excel. Doesn’t she look happy? Because she loves geology, that’s why.

Julia Franceschi of the class of 2016 is packing equipment with incredible skill. This girl knows camping.

Julia Franceschi of the class of 2016 is packing equipment with incredible skill. This girl knows camping.

T-MINUS 24 HOURS:

Having accomplished a lot in the past couple of weeks together, we are now preparing in the last hours to fly out to Vancouver. Together we make an interesting team. We range in field experience from beginner to advanced. We have put in a lot of work, and are now ready for “roughing it” in the field. We have our tents packed and our ugly sweaters prepared. Ready or not, British Columbia, the Wooster and Dickinson crew are coming. And we are prepared to make memories and come back more knowledgeable than when we left (or at least with better thigh muscles/definition). Here’s to a new adventure!

Almost ready for British Columbia

June 24th, 2014

Guest Blogger: Liz Plascencia
 

It’s safe to say that time truly does fly. Seemingly having know Mary and Julia for years, I am reminded that my arrival to The College of Wooster was a little over a week ago.

 
As a rising junior, Earth Sciences major from Dickinson College I will be accompanying, Ben Edwards, Associate Professor of Earth Sciences at Dickinson College, Meagen Pollock, Assistant Professor of Geology at The College of Wooster, and undergraduate students Mary Reinthal (Wooster ’16), Julia Franceschi (Wooster ’16), and Will Kotchtitsky (Dickinson ’16) to Northern British Columbia. Through our investigation of pillow lava last year at two quarries in southwest Iceland we are now going to spend a couple of weeks collecting similar data and samples from northern British Columbia, Canada. Though pillow lava is one of the most abundant volcanic units in the world, there is still much to be done in terms of quantitatively and qualitatively categorizing them. Thus that will be one of our main tasks this summer. 

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Under the guidance of Doctor Pollock, Mary, Julia, and I spent a couple of prep weeks preparing pressed pellets and glass beads from past Pillow Ridge, Canada samples.

 

Mary preparing a pressed pellet (Wooster ’16)

Mary preparing a pressed pellet (Wooster ’16)

We're all packed up. Our flight departs from Cleveland Airport around noon tomorrow and so the adventure begins.

We’re all packed up. Our flight departs from Cleveland Airport around noon tomorrow and so the adventure begins.

Beginning our journey from Vancouver all the way up to Pillow Ridge, Mt. Edziza. 
 
4 planes, 2 SUV’s, and 2 helicopters —  this surely is going to be a geological journey to remember.

Fantastic Weather Makes Productive Field Days

May 28th, 2013

ICELAND – Team Iceland made the most of the beautiful weather over the last two days. After spending all day in the field yesterday, we went back after dinner;  the lighting was just right to take GigaPan images of the field site.

Aleks ('14, Dickinson) and Ben (Dickinson) set up the GigaPan to take a panoramic image of the quarry.

Aleks (’14, Dickinson) and Ben (Dickinson) set up the GigaPan to take a panoramic image of the quarry.

This is a simple panorama made of three images stitched together. The GigaPan system allows us to merge over 100 images to produce a high-resolution image.

This is a simple panorama made of three images stitched together. The GigaPan system allows us to merge over 100 images to produce a high-resolution image.

Our plan is to couple the high-resolution GigaPan images with elevation information from the laser range finger. Here, Michael ('16, Wooster) and Ellie ('14, Dickinson) are recording the elevations of contacts along the quarry walls.

Our plan is to couple the high-resolution GigaPan images with elevation information from the laser range finder. Here, Michael (’16, Wooster) and Ellie (’14, Dickinson) are recording the elevations of contacts along the quarry walls.

Meanwhile, the rest of us are mapping and sampling the different units. Adam ('16, Wooster) and Aleks ('14, Dickinson) are ready to sample a glassy pillow lava.

Meanwhile, the rest of us are mapping and sampling the different units. Adam (’16, Wooster) and Aleks (’14, Dickinson) are ready to sample a glassy pillow lava.

Alex ('14, Wooster) describes a volcanic breccia unit.

Alex (’14, Wooster) describes a volcanic breccia unit. Photo Credit: Aleks Perpalaj

Liz ('16, Dickinson) carefully describes the mineralogy and vesicularity of a sample.

Liz (’16, Dickinson) carefully observes the mineralogy and vesicularity of a sample. Photo Credit: Aleks Perpalaj

Ben and I are having a blast working in the quarry (no pun intended).

Ben and I are having a blast working in the quarry (no pun intended). We’ve seen a number of interesting features that have our minds racing. Photo Credit: Aleks Perpalaj

We're currently puzzled over these large, light gray, columnar jointed features.

We’re currently puzzled by these large, light gray, columnar jointed features.

 

The puzzling features are associated with these steeply dipping pillow lavas, which might lead to some insights into their origin.

The puzzling features are associated with these steeply dipping pillow lavas, which might lead to some insights into the origin of the features and enhance our understanding of the formation of subglacial pillow ridges.

Familiar Faces at AGU 2012

December 3rd, 2012

San Francisco, CA – The annual meeting of the American Geophysical Union is the largest earth science conference in the world.

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With more than 20,000 attendees and about 3000 posters per day, you’re bound to bump into someone you know. Today, I ran into Wooster alum Jesse Davenport (’11). You may remember his senior I.S. adventures in Montana, working on 2 billion year old sheared igneous and metamorphic rocks. Jesse is currently a graduate student at Notre Dame and has shifted his focus to more recent (~80 million years old) basalts – a topic that I can finally relate to!

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Jesse is studying the compositions and textures of plagioclase and olivine crystals in basalts from the Detroit Seamount to better understand magmatic processes at ocean islands. (See a more complete explanation in his AGU abstract). It’s always fun to catch up with alumni who travel diverse paths yet have the common Wooster experience. If we’re lucky, Jesse will come to Wooster to share his research and experiences with GeoClub sometime this spring.

Wooster Geologists at GSA

November 2nd, 2012

Many of the Wooster Geologists have embarked on the journey to Charlotte, NC, for the 2012 National Meeting of GSA. If you’re attending the meeting, be sure to check out one of our presentations:

Don’t miss us at the Group Alumni Reception on Monday at 7 pm in the Westin Grand Ballroom CD. We’re taking our annual alumni photo at 8 pm. GSA President and Wooster Alum George Davis (’64) will also be joining us at 8 pm.

Real-life photos to come!

 

Early Morning Powdering Session

October 2nd, 2012

WOOSTER, OH – Our dedicated Mineralogy students appeared in the lab bright and early this morning for an optional sample prep session.

Wide-eyed and alert in the early morning hours, the Mineralogy students are diligently powdering their samples for XRD analysis.

Each student has an unknown mineral that they are studying in a semester-long research project. Most of the work involves using modern analytical techniques for identification. Not all samples are well-suited for every technique, though. All of the students have been able to describe the physical properties of their sample, but only some can observe the crystallography. Some students are starting to use optical methods while others are using the XRD. Eventually, a few students will get to analyze the chemistry of their samples by XRF.

As with any research project, some students are struggling with uncertainty: “how am I supposed to be sure about the identification of my mineral?” That’s a fantastic question, and one that we are constantly engaging in our I.S. program. The answer is that the best identification is the one that is supported by the evidence. By using a variety of techniques, the students should become more confident in their identifications. Instantly, students see the advantages of some methods. In fact, one student asked if it was “cheating” to use the XRD to identify his/her mineral. No, it’s not cheating. It’s called data.

A Visit to the Utah Core Research Center

June 13th, 2012

SALT LAKE CITY, UTAH – On Tuesday, Team Utah visited the Core Research Center at the Utah Geological Survey. The repository includes cores and cuttings from more than 4000 wells, on-site microscope facilities, and a friendly and knowledgeable staff. We suspect that the sedimentary xenoliths that Kevin has been finding represent Lake Bonneville sediments. Tom Dempster and Peter Nielsen pulled out some cuttings for us to look at and set up the microscope. Mark Gwynn showed us some core that they recently recovered from an area near our study site.

Kevin examines some cuttings under a binocular microscope and projects the image so that we can discuss it as a group.

We also had the chance to meet with Amanda Hintz, a UGS geologist with an expertise in the Black Rock Desert.

Amanda so graciously gave us part of her day to answer our questions about bombs, xenoliths, lava flows, and faulting.

Finally, Stephanie Earls, the UGS Research Librarian, was so helpful in finding historic aerial photographs for us.

Matt, Dr. Judge, and Whitney examine the aerial photos, trying to make sense of the lava flows surrounding our cinder cone.

After a productive day at the research center, we visited Bingham Canyon on the way out of town.

View of the Bingham Canyon mine from the visitor's center.

Although it make for a long day and a late night, our trip to Salt Lake City was instrumental in helping us think about our field area as we wrap up our field season. Thanks to all of the folks at the UGS for their help!

 

The Joys of Mobbing

June 11th, 2012

FILLMORE, UTAH – [Guest Bloggers Matt Peppers, Whitney Sims, and Will Cary]

Wizard Will enjoys some early morning tomfoolery.

With our alarms set for 6:30, we guaranteed that we wouldn’t be up before 7 am. After a hurried lunch packing session, the group headed out to inaugurate Tricia into the research community. She will be doing a project focused on the origin of the basalt islands in the western channel. Hopefully, her project will be used as an analogue for the islands found in the rest of the lava field. We mobbed Tricia in the morning, and through a heroic effort, managed to complete her fieldwork in just under three hours. Dr. Shelley “The Machine” Judge burned through a majority of the 50 individual columnar joint orientation measurements that will help Tricia with her interpretations. While the measurement team ran through the orientation measurements, the rest of the group broke into two smaller teams to collect samples and track out the significant fractures in the area. With each person working toward his or her specialty, the data collection process flew by.

Mob mentality at work.

 

Riding high after a stellar group outing, we moved toward the western breach to take a look at a large fissure Dr. Pollock, Whitney, and Tricia had seen a few days before. When we came across the gaping fissure (nicknamed “Chubman”), we decided to take a well-earned lunch break in the shade of the nearby wall before tackling the measurement process. While Team Fissure worked on mapping and tracking the fissure in the northern end, Team Flow Bandits tracked the fissure south on their way to investigate the possibility of a nearby flow boundary. The familiar call and response of, “Whitney, do you want to take a sample here?” followed by a subdued, “Yes…” echoed throughout the flows as the day came to an end. We had a weary trek back through the sand and sagebrush back to the car, satisfied after a productive workday. Celebratory pie for desert was the icing on the cake to yet another day in paradise.

The "Chubman" Fissure dominates the landscape.

 

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