Keck Students Doing Rock Hard Research

July 4th, 2016

Hafnarfjörður, Iceland – Guest Blogger Ben Kumpf (’18)

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Keck students doing recon on the volcanic ridge system they will be studying for their senior research projects. Dr. Ben Edwards on right giving one of his many field lectures on the petrology and physical geology of the area.

 

 

Lava bears were an unexpected encounter when climbing the ridge. These bears just happened to come out of the cave when Dr. Meagen Pollock was analyzing an outcrop of her favorite rock, none other than basalt.

Basalt here, basalt there, basalt everywhere. Long days in the field with endless sunlight wore out these tired lava bears. It seems they have found their favorite napping spot on a nice piece of moss.

 

 

 

 

 

A volcanic intrusion known as a dike sticks out of the surrounding lapilli tuff and tuff breccia units on top of the volcanic ridge system. Features like these are important to the project. The Keck students will be working to map in new features which are critical step in the process of updating the map of the ridge.

Ben Edwards and his field assistant Will Kochtitzky surveying a gully on the south side of the ridge as part of a mapping project to be done during the Keck experience in Iceland.

A Journey to the Land of Basalt

July 2nd, 2016

Hafnarfjörður, Iceland – Guest Blogger Ben Kumpf (’18)

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One of the many “pillow talks” the Keck students were having as they were analyzing vesicle patterns and jointing of pillow basalt. Dr. Pollock’s expertise in MORB’s and pillows along the ridge was very helpful to further research in sub-glacial eruptions.

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A great view of one of the main field locations in Iceland, Undirhlíðar Quarry. This location gives the young researchers a cross sectional view of the ridge, shedding light on the stratigraphy of the Northern end of the ridge.

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Views.

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From left to right: Michelle Orden (Dickinson ’17) and Anna Thompson (Carleton ’17). One of the best exposures of the trip was a near vertical dike with a well preserved glassy contact.

 

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Who would expect to find a burger in the middle of a lava field?! A little crunchy and slightly vesiculated this sub-glacial burger is packed with flavor and phenocrysts.

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Vesicles and phenocrysts are great characteristics to help differentiate pillow units. The large white dots are plagioclase phenocrysts and the yellow to green dots are inclusions of olivine.

 

 

 

Pillows, Trolls, and Dried Fish

June 26th, 2016

Hafnafjörður, Iceland – Cara Lembo (Amherst), official Keck Iceland 2016 Guest Blogger.

Greetings from rainy Iceland! After spending 4 full days in the field we are spending a rainy day inside discussing projects and compiling our data.

Inside the Lava Hostel on a rainy Sunday morning.

Inside the Lava Hostel on a rainy Sunday morning.

We spent our first day and a half in Iceland inside the Undirhlíðar quarry – an ideal place to observe cross sections of pillow lavas and other volcanic deposits.

Michelle Orden and Anna Thompson with a shelved lava tube in the Undirhlíðar quarry. The tube was likely refilled with the darker lava.

Michelle Orden (Dickinson) and Anna Thompson (Carleton) with a shelved lava tube in the Undirhlíðar quarry. The tube was likely refilled with the darker lava.

A pillow in the Undirhlíðar quarry.

A pillow in the Undirhlíðar quarry.

After getting a feel for many different types volcanic deposits in the quarry, we headed out to survey the ridge South of the quarry and observe these deposits “in the wild.”

 

Keck students hiking across the ridge.

Keck students hiking across the ridge.

We surveyed the ridge for the next day and a half. Highlights include discovering an unexpected tephra cone and learning how to tell the difference between goats and sheep. According to Ben you say, “Goaty, Goaty raise your tail!”

Students and Ben observing a diamict deposit on the ridge.

Students and Ben observing a diamict deposit on the ridge.

Once we surveyed the whole ridge, we started our mapping project with a gully on the southwest side of the ridge.

 

The gully we mapped. We discovered lots of fractured pillow lavas and dikes.

The gully we mapped. We discovered lots of fractured pillow lavas and dikes.

Michelle looking for trolls in the lava field below the gully. (The trolls we are looking for: http://vignette2.wikia.nocookie.net/p__/images/f/fa/The_Trolls_(Frozen).jpg/revision/latest?cb=20140116003401&path-prefix=protagonist)

Michelle looking for trolls in the lava field below the gully (the trolls we are looking for).

We’ve also sampled some local Icelandic cuisine such as Skyr, chocolate covered licorice and, to Dr. Pollock’s dismay, Harðfiskur (dried fish).

 

 

Ben with Harðfiskur. The dried fish has an incredibly potent smell that we cannot get out of the van.

Ben with Harðfiskur. The dried fish has an incredibly potent smell that we cannot get out of the van.

Overall it has been an exciting first week in the field. More to come as we continue working in the field and trying to adjust to the never-ending daylight.

 

Keck 2016 Arrives in Iceland

June 21st, 2016

Hafnafjörður, Iceland – What a fantastic day! Dr. Ben Edwards and I are leading a 6-student Keck trip to Iceland to study a glaciovolcanic ridge. It was a long travel day, but everyone (and their luggage) arrived safe and sound. No need to waste any time – soon after we set up camp, we headed to the field.

Ben Edwards (left) and the Keck students discuss their initial observations of pillow lavas and dikes.


A beautiful day welcomed us to our field site, but we couldn’t stay for too long because we had a birthday to celebrate.

Carl-Lars celebrated his birthday today during his first visit to Iceland, among his newfound Keck friends.

Today’s introduction was brief, but we’ll continue to post about our work and adventures over the next month.



ICP-MS OSU Adventure

September 14th, 2015

[Guest bloggers: Mary Reinthal and Chloe Wallace]

In five days, three Wooster geologists prepped and analyzed over 50 samples, ate tons of food, and learned a lot of science. Okay, maybe not tons of food, but we did eat a lot. For three solid days, rising junior Chloe Wallace and rising senior Mary Reinthal were able to dabble in wet chemistry at the Ohio State University under the guidance and supervision of Dr. Pollock. The days were spent in geochemistry labs preparing sieved whole rock samples for ICP-MS analyses.

For those not familiar, ICP-MS stands for Inductively Coupled Plasma-Mass Spectrometer. ICP-MS is a system that allowed us to determine trace elements in our samples, which better help us separate lithofacies units into distinctive geochemical groups. This, then, allows for a broader understanding of how and when these units were emplaced in relationship to one another. That’s a lot of information from some geochemistry.

Chloe and Mary in the clean lab.

Chloe and Mary in the clean lab.

One of the days, Chloe and Mary were able to get outside and venture around campus and check out some of the sights. But most days at OSU main campus were spent not in the sun, but in the basement, measuring solutions, precisely weighing powders, wearing clean-lab gear, or inputting data into the computer.

Chloe weighing whole-rock powders.

Chloe weighing whole-rock powders.

Mary pipetting acids into the vials to digest the samples.

Mary pipetting acids into the vials to digest the samples.

After long days of work, however, we got to peruse the campus scene, and we ate somewhere new every day. It was exhausting work, but the hope is for some good data.

Mary and Chloe celebrating the completion of sample preparation!

Mary and Chloe celebrating the completion of sample preparation!

Another Perspective on British Columbia

July 17th, 2014

Guest blogger: Liz Plascencia

15 days. 22 bears. 4 bald eagles. 47 rock samples.

Wow. What a trip. I, a native Los Angeles city dwelling kid, have had the utmost pleasure of accompanying such a dynamic and energetic team of geologists to Mt. Edziza. Northern British Columbia is absolutely unreal. Far from the city lights and piercing sirens, our camp was nestled between Pillow Ridge and Tsekone Ridge. We spent a solid five days in the field collecting a variety of physical samples such as pillow lava, breccia, lapilli tuff, xenoliths, etc. We also spent a great deal of time quantitatively and qualitatively describing pillow lava from the west side of Pillow Ridge with trend and plunge measurements, vesicularity estimates, phenocrysts estimates, and horizontal and vertical measurements. Within those five days we celebrated a birthday (HAPPY BIRTHDAY MEAGEN), Canada Day, The Fourth of July, and overall triumph of a great trip.

The team observing a dyke at Second Canyon, Wells Gray Provincial Park, BC.

The team observing a dyke at Second Canyon, Wells Gray Provincial Park, BC.

Eve Cone in the distance at dusk.

Eve Cone in the distance at dusk.

Quite possibly the greatest thrill of my life, so far.

Quite possibly the greatest thrill of my life, so far.

We are back in lab for these next couple of weeks processing the rock samples from the field. I am really going to miss these two goons. Mary and Julia were the most welcoming Scots. Hopefully there will be more Dickinson College and The College of Wooster collaborations in the near future.

Returned from British Columbia

July 16th, 2014

Bears = 22

Bald Eagles = 4

Wolves = 2

Stone Mountain Sheep = 4

Marmots = Too many

Helicopter Rides = 2

Impromptu Trip to Hyder, AK = 1

Samples Collected = 47

Successful Trip? Most definitely

Fieldwork in British Columbia was hard. We covered a lot of ground both in transit and during hikes, made a number of pillow descriptions, and brought back more samples than we had initially intended. It was also cold, it rained, it snowed, it hailed, the wind blew, bears roamed near camp, and the talus slopes were unforgiving. But it never felt like work because each day was met with laughter, learning, beautiful sunsets, Nutella, and a definite feeling of accomplishment. It is so difficult to explain just how amazing our time in British Columbia was, because it was one of the most unforgettable experiences ever. The images below allow for a visual story of our trip, when words simply don’t suffice.

Photo credit to Mary R; The provincial park where we camped (located near Pillow Ridge) allows no vehicle access, which makes traveling by air critical. Note basecamp in the background.

Photo credit to Mary R; The provincial park where we camped (located near Pillow Ridge) allows no vehicle access, which makes traveling by air critical. Note basecamp in the background.

Photo credit to Liz P; A nice pillow exposure interlaid with tuff breccia on Pillow Ridge, with Julia F. for scale.

Photo credit to Liz P; A nice pillow exposure interlaid with tuff breccia on Pillow Ridge, with Julia F. for scale.

Photo credit: Mary R; Mount Edziza stratovolcano located west of basecamp.

Photo credit: Mary R; Mount Edziza stratovolcano located west of basecamp.

Photo credit: Julia F; A sunset view from basecamp. Pictured on the horizon is Eve Cone, one of the youngest cinder-cone volcanoes in the provincial park.

Photo credit: Julia F; A sunset view from basecamp. Pictured on the horizon is Eve Cone, one of the youngest cinder-cone volcanoes in the provincial park.

Photo Credit: Ben E. British Columbia field excursion summer 2014, we made it (more or less) in one piece.

Photo Credit: Ben E. British Columbia field excursion summer 2014, we made it (more or less) in one piece.

Going off the Grid for Pillow Lavas

June 29th, 2014

Tatogga Lake, British Columbia – We’ve been traveling for four days and have finally arrived at our destination: Tatogga Lake. Tomorrow, we’ll be traveling by helicopter to our field site. It’s the first helicopter ride for most of us and we’re pretty excited about the birds-eye view of our subglacial pillow ridge (not to mention the gorgeous scenery). Although we’re eager to get started on our research goals, we’ve enjoyed the journey. In Wells Gray Provincial Park, we saw some of the most beautiful waterfalls and glaciovolcanic features. On the drive, we visited the world’s largest fly rod. I think our bear spotting count is up to at least 9 now. The best is yet to come, and we hope to have some fantastic photos to share with you when we come out of the field sometime next week. Until then, we’ll be off the grid, happily geologizing!

20140628-230202-82922728.jpg Most of the crew at Spahats Falls in Wells Gray Provincial Park. From left to right: Dr. John Greenough (UBC Okanagan – not part of the pillow team, but conducting research in Wells Gray), Will Kochitzky (Dickinson), Dr. Meagen Pollock, Erica (Dr. Greenough’s grad student), Julia Franceschi (Wooster), Mary Reinthal (Wooster), and Liz. Placenscia (Dickinson). Not pictured: Dr. Ben Edwards, to whom the photo credit belongs.

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!

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