A student using an iPad to create a 3D scan of a glacial erratic in a forested setting
Got into the field this week for a new student project who is creating 3D scans of dated erratics and measuring them to see if there are metrics that help distinguish between moved and unmoved rocks!
#MichiganErratics
#GreatLakes
#GlacialGeology
#EarthScience
#Geology
#UndergraduateReeesrch
#EMU
The October #EasternMichiganUniversity College of Arts and Sciences October Newsletter is chockablock with updates on #Geography #EarthScience and #Archaeology research and work being done by me and my colleagues WITH our students.
#GreatLakes #MichiganErratics
sites.google.com/emich.edu/ca...
Portrait photo of beagle-lab mix sitting amongst leafy garden
Beagle-lab mix in the woods sniffing around a glacial erratic
Happy #InternationalDogDay to Max, our derpy #dog, lover of #LakeMichigan, and occasional #fieldwork assistant. Unfortunately, he doesn’t have a good nose for finding #MichiganErratics
Large granite boulder positioned on a leafy forest floor. Moss is growing on one side and there is a series of small dots/markings on the boulder surface in a grid pattern
No, I’m not testing #MichiganErratics for allergies. Dots are #SchmidtHammer measurements that reveal the relative hardness of #rock surfaces. Strong rock ➡️ short exposure; weak rock ➡️ long exposure. #geomorphology #geology #geochronology #GreatLakes
Surface of a glacial erratic with a scale bar, sample ID sign, and a steel chisel bent in half
Surface of a glacial erratic with three evenly spaced cuts in the rock, which looks like Wolverine from the X-men was here
When the going gets tough sampling super hard #rocks and you bend a solid steel chisel, you know it is time to call in help from #Wolverine! #MichiganErratics
#geology #earthscience #geomorphology #fieldwork #research #icesheet #Quaternaryscience #Michigan #GreatLakes
Large boulders moved by farmers to a rock pile at the edge of a forest along with a rusty old car
Been back out in the field this week collecting nearly the rest of samples needed to date the Port Huron Moraine built by the Saginaw Lobe of the Laurentide #IceSheet. Hunting for #MichiganErratics in the “Thumb” of #Michigan has been hard because of centuries of farming and other land use
Struck out hunting for #MichiganErratics today, but got to explore a small old growth #forest with black maple, huge beech, and 200-year old hemlock trees at the Caro Airport. Yet another reason why the #GreatLakes are awesome! (Unfortunately, not open to public)
#EarthScience #Fieldwork #Michigan
Thanks @tamarakeithnpr.bsky.social and @sarahmccammon.bsky.social for featuring my timestamp on the NPR Politics Podcast! Check out my feed for photos of #MichiganErratics (aka glacial rocks abandoned in the #GreatLakes when the Laurentide #icesheet melted) 🧊🪨🧐
If you listen to the @npr.org Politics Podcast episode for today, you’ll hear yours truly reading out the timestamp, featuring #MichiganErratics and #EasternMichiganUniversity!
#geology #earthscience #fieldwork
podcasts.apple.com/us/podcast/t...
Woohoo! First sample collected from the Port Huron #Moraine of the Saginaw Lobe of the Laurentide #IceSheet! How long ago? Guess we’ll find out in…oh…a year?! #Geology #Geomorphology #Research #MichiganErratics
Day 5: 🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨
The first complete set of #MichiganErratics for my #NSF research project constraining Laurentide #IceSheet retreat through the #GreatLakes
1 down, 7 to go!
#Geology #EarthScience #Research #Michigan
Day 4: Averaging 18,000 steps and covering hundreds of acres daily looking for #MichiganErratics. When I find them, I definitely don’t take them for granted (but they are #granite) 🪨
Ending my hunt on the Outer Port Huron #Moraine with this behemoth left as a gift by the Laurentide #IceSheet
Day 3: @paul-bierman.bsky.social nice gneiss, eh? Migmatite send it your way in the first batch of #MichiganErratics! 🪨
#EarthScience #Geology #Rocks
Day 2 of hunting for #MichiganErratics was less fulfilling…had to ask these turkeys if they knew were any were (they didn’t). At least I found a beautiful over the #ManisteeRiver at Eagle’s View, Springfield Twp. Park
Yesterday was Day 1 on the Outer Port Huron #Moraine (Lake Michigan Lobe) hunting for #MichiganErratics! Collected 4 samples
#Geology #LaurentideIceSheet #EarthScience #Michigan #GreatLakes
Yesterday was Day 1 on the Outer Port Huron #Moraine (Lake Michigan Lobe) hunting for #MichiganErratics! Collected 4 samples
#Geology #LaurentideIceSheet #EarthScience #Michigan #GreatLakes
Finding more #MichiganErratics for #NSF #geology #research today on the #PortHuronMoraine in #TuscolaCounty #Michigan, including some BIG ROCKS!
Had some help from local farmers and wildlife
🪨 Latest in a series of #Michigan #rock and #mineral identification from #geologists @michiganegle.bsky.social
#MichiganErratics #EarthScience #Geology #GreatLakes #GlacialGeology #ice #glaciers #icesheets
www.michigan.gov/egle/newsroo...
First day out hunting for #MichiganErratics for my #NSF award reexamining the timing of #LaurentideIceSheet retreat from the #GreatLakes region. Not all are usable for #10Be dating, but they exist! Will be back up to the Outer Port Huron #Moraine in July to keep the search going #Geology #Research
460’ above #LakeMichigan on the Inner Port Huron Moraine, first family trip to #SleepingBearDunes
Doing our bit to support our #NationalParkService and get the girls to their first park unit!
Found great limestone #MichiganErratics with rugose #fossils …but no quartz #Geology #Michigan #GreatLakes
Over the next 4 years, I will be looking for #MichiganErratics that we can date for an #NSF #Geology #research project to reexamine the retreat history of the Laurentide Ice Sheet from the #GreatLakes! 1286 letters to landowners sent and 989 more going out today! If you know a big rock, let me know!
