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Charles Carrigan
Works at Olivet Nazarene University
Attended University of Michigan
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Charles Carrigan

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+Sue the T. rex from Chicago's Field Museum is playing pokemon on twitter, with votes from followers on what she should do next.
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Charles Carrigan

Field Trips & Guides  - 
 
My former student, +Kathryn Maneiro , is currently live-streaming her Ph.D. dissertation defense at Boston University on detrital garnet geochronology.
 
I will be live streaming my doctoral dissertation defense! The stream will start approximately 10-15 minutes before the talk (official start 10:30am EDT) to allow people time to join!

After 22 years of continuous schooling, the time has finally come to shed the title of "student" and (hopefully) gain the title of doctor!

My dissertation research has dually focused on developing a new way to determine how old the mineral garnet is if it is no longer in the rock where it originally grew and also on dating garnet from some of Earth's oldest rocks to learn about metamorphism on Earth billions of years ago.

In order to graduate from Boston University with my Ph.D., I have to defend the merit of my research by giving an approximately 45 minute talk about my work that's open to the public, followed by closed door questioning for 2-3 hours by a panel of professors before (fingers crossed) being proclaimed a doctor and eating cake!

My dissertation is titled "Development of a detrital garnet geochronometer and the search for Earth's oldest garnet"
This Hangout On Air is hosted by Kathryn Maneiro. The live video broadcast will begin soon.
Q&A
Preview
Live
K. Maneiro Dissertation Defense
Fri, July 22, 10:15 AM
Hangouts On Air - Broadcast for free

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And the result was? Could we watch it on YouTube? Just gathering ideas for phd dissertations for Prague
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Charles Carrigan

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Cross-bedded ash layer at Badlands Natl. Park

A mixture of igneous & sedimentary processes were at work in this cross-bedded ash layer at Badlands Natl. Park. The layers of rock in the Badlands are dominantly sedimentary rocks deposited by ancient streams, but there were active volcanoes at the time contributing significant amounts of ash as well. That ash was frequently reworked by streams after eruptions, forming layers like this one: it is made of volcanic ash but got in its present state by being transported and redeposited by water.

I've finished a blog post at my website on the geology of Badlands Natl. Park, where you can find this and other images of geologic features: http://charleswcarrigan.wix.com/geoscienceimaging#!Geologic-Features-at-Badlands-Natl-Park/cf15/577b34f90cf2119db9ca3170

#badlandsnationalpark #wcss2016 #geologyfieldtrip #findyourpark #nps100 #volcanicash #sedimentarystructure #crossbedding #geologyrocks 
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Bad lands no good farming
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Sed-Strat-Surficial Geo  - 
 
Landslide Blog Reddit Q&A

It might be too late for this now, but folks in the Geoscience Community might be interested in checking this out. The author of the Landslide Blog, Dave Petley, was answering questions about landslides.
+American Geophysical Union (AGU) 
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Bridal Veil Falls, Spearfish Canyon, Black Hills, SD

Spearfish Canyon is one of the more scenic drives in the northern Black Hills. The tall cliffs on either side are held up by the yellowish Pahasapa Limestone. Here at the falls, a syenite dike of Tertiary age intrudes the stratigraphic sequence.

#WaterfallWednesday #BlackHills #WCSS2016 #GeologyFieldTrip 
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this awesome
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Charles Carrigan

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Arctic Sea Ice on Track to New Summer Lows

Blue line for this year is currently way more than 2 standard deviations below the average for the 3 previous decades (1980-2010). In other words, its really, really, really low, even when compared to very recent history. It will be interesting to watch as the late summer minimum arrives in early Sept. to see if it breaks any records.

#ClimateChange   #GlobalWarming  
e360 digest. 08 Jun 2016: Sea Ice Hits New Spring Low In the Arctic, Says Federal Agency. Sea ice extent in the Arctic hit a new record spring low last month, measuring 537000 square miles below average — an area twice the size of Texas, the National Snow and Ice Data Center announced this week.
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Charles Carrigan

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Door Trail, Badlands National Park

Door Trail is a beautiful hike at the east end of the park. This is the scene at the end. I've written up a blog post at my website summarizing the geologic features of the Badlands that I've been sharing recently, and it is available here:
http://charleswcarrigan.wix.com/geoscienceimaging#!Geologic-Features-at-Badlands-Natl-Park/cf15/577b34f90cf2119db9ca3170

#BadlandsNPS #Badlands #GoParks #NPS100 #FindYourPark #OptOutside #GeologyRocks #WCSS2016 #FieldCamp 
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Obrigado pela dica de seu "post", +Charles Carrigan ! c-:))
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Field Trips & Guides  - 
 
Blog Post: Geologic Features of Badlands National Park

I've been posting photos from the Badlands recently as most of you are aware, and I've put the finishing touches on a blog post on my new website that brings it all together, linked here. If you are interested in seeing interesting geological features next time you are out in the Badlands, I hope this is a helpful resource. Glad to see +todd comer+Bob Libra , and +M Jacobs join in with their own photos of this great place! Seriously, that made this feel much more like a community. Anyone else want to join the fun? I'll continue to post a few more shots individually in my Earth Science Images Collection (formerly called Geology Field Photos) over the next week.
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And awesome pics by the way....
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Badlands Brule Formation

The Brule Formation is part of the White River Group of sedimentary rocks that make up the stratigraphy of Badlands National Park. The Brule Fm., like most White River Group rocks, was deposited in the Oligocene ~30-34 Ma. The dark red layers within this unit are paleosols, layers where ancient soils developed from weathering before they were covered by younger sediments. These layers were formed in a stream floodplain environment, with the addition of volcanic ash every now and again as well. At this location, the Brule Fm. is cut by a distinct fault - can you spot the offset in the layers? The fault is obviously much younger than the rocks themselves but its age is unknown.

#Badlands #GeologyFieldTrip #geologicstructure #NPS100 #FindYourPark #fault #tertiary #oligocene #weathering #erosion #paleosol #BruleFm #WhiteRiverGroup #BadlandsNPS #NationalParks #WCSS2016  
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+Charles Carrigan , i was taking core samples in a siltstone formation here in East Tennessee and we found a perfect fossil of a mid sized minnow in the rock, it was just amazing!!!
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Normal Fault at Badlands Natl. Park

A normal fault offsets yellow and gray layers at Badlands Natl. Park. This fault is easily seen at the Yellow Mounds Overlook. The fault strikes N70W, meaning that any two points on the fault surface that are at equal elevation will have a compass bearing of 70° West of North. It dips ~60° from horizontal toward the SW. The yellow layer is called the Yellow Mounds Paleosol; it is a deeply weathered material found at the base of the Badlands stratigraphic sequence. A "paleosol" is an ancient soil, representing a time period in the distant past where rocks were exposed at the Earth's surface and underwent significant weathering to convert the rock to soil. This particular layer was weathered roughly 65-50 million years ago. The gray layer above that is the Chadron Formation, a sedimentary layer formed ~50-40 million years ago from volcanic ash and stream deposits. It indicates that weathering and erosion eventually gave way to renewed deposition of sediment in the early Tertiary Period. The fault occurred much later but the timing of it is unknown.

#Badlands #geologyfieldtrip #geologicstructure #nps10 #badlandsnationalpark #findyourpark #optoutside #geologystudent #geology #geologyrocks #geologia #fault #normalfault #tertiary #weathering #erosion #paleosol #yellowmounds #nps100 #yonderon #WCSS2016 
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amazing


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Charles Carrigan
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Field Trips & Guides  - 
 
Map of Geologic Features in Badlands Natl. Park

I've shared a few photos from Badlands Natl. Park recently in my Geology Field Photos Collection, and there are more to come. I'm also working up a summary blog post of all of them for my website that I'll post a link to when it is finished. On that post I plan to include this map that I've put together, but in the meantime here's a #PlusOnly  preview of what's to come with a direct link to the map.

#BadlandsNP   #GeologyFieldTrip   #GoogleMyMaps  
Sites in Badlands National Park of geologic interest. Features to see include the Oligocene sedimentary rocks, clastic dikes, a normal fault, fossils found here, and Badlands topography. Map by Charles W. Carrigan: http://charleswcarrigan.wix.com/geoscienceimaging
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Thanks Charles...I'll post some...you can probably better comment on the geology...sounds like you know it pretty well....I am fascinated by the "yellow mounds"....probably a paleosol.  I'll get busy posting some pics of the K-T boundary, and the photomicrographs I just got a few days ago.....as well as some of the stratigraphy of the Bearpaw Shale (Montana equivalent of the Pierre which is the basal unit in the Badlands), Fox Hills and Hell Creek Formations (K) and the overlying Fort Union (T). 
I've been to the K-T boundary at  Smokey Butte three times now....every time I have a new geologist(s) come up to Montana to help me on my project up there I make a point to take the back road back to Billings....runs through Jordan, MT. just a few miles from Smokey Butte...so that's their reward for doing a good job on the site.  This site is also just a few miles from where the first T. Rex was found as well as the largest T. Rex was found.  If you stop off at the little Museum there in Jordan there are two of the cutest ancient little ladies that work there that I swear probably "shooed" them off their front porch....LOL.  Actually they grew up on the ranches around Jordan and tell stories of the when the dinosaur fever and rush came through that part of the country in the thirties and forties.  Musta been something to see.....crews crawling around the hills digging or T Rex's and Triceratops.  They still come there every summer....met a guy at the GSA in Minneapolis a few years back....we got to talking about that area and he invited me to come spend some time on the digs with his crew...."shoulda done it".  But my life is full of "Shoulda Dones" and I am now getting to the point of where I have quit regretting the things I've done and started regretting the things I haven't done...LOL. 
 
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Structure-Tectonics  - 
 
 
"...a plunging anticline that you could actually take a plunge into..."
Mountain Beltway at #AGUblogs
http://ow.ly/1Oiu3023uO0
When I took you on a virtual field trip to Kinkell Braes earlier this week, I didn’t mention that the sandstones are folded there, now did I? Let me remedy that omission now: That is a plunging anticline that you could actually take a plunge into: And here’s a syncline to match. Happy Friday. Hope your week was a good one, and that your weekend is even better.
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  • Olivet Nazarene University
    Prof. of Geoscience, 2004 - present
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Husband, Father, Geoscientist, Educator
Introduction
I'm a Professor of Geoscience at Olivet Nazarene University.  I'm a big fan of hiking, camping, & other outdoor activities.  I'm also into photography, technology, culture, politics, psychology, sociology, education, the interaction of religious faith with the above, music, games with friends, cooking, yadayada.  

On Google+, I post geology field photographs I have taken about once a week and give a brief explanation of what you are seeing from the eyes of a geologist.  These are kept in my album "Geology Field Photos".  I am also the owner & a moderator for the Geoscience Community here on G+, and I hope other geoscientists will join the discussions there.  
I sometimes write a blog about mineral resources & the environment & anything else geological I feel like called Earth-like Planet.  Circle me here on Google+ if those things sound of interest to you.  
Professionally, I study the application of mineralogy, petrology, & geochemistry to the understanding of mountain belts and tectonic processes, specifically in the Southern Appalachians.  My students and I use the tools of geochronology and thermobarometry to establish P-T-t paths of metamorphic rocks, and thereby constrain the timing and rates of tectonic processes.  Our current, ongoing project focuses on information that can be obtained by emphasizing the study of rutile & other minerals in pelitic schists.  

I also study the best practices for improvements in education within the MPG (mineralogy, petrology, & geochemistry) disciplines, as well as geoscience for general education.  My work has focused on a complete redesigned the way I teach mineralogy with an emphasis on geologic context, as well as the way students relate upper level course work back to material and skills they learned in previous courses.  I'm also in the process of designing video tutorials for optical mineralogy, which I hope to begin publishing on the web in the next 6 months.  
Bragging rights
My rock garden has more garnet than yours. My dog's name is Xenolith. I married a girl who took Calculus for fun in college. I defended my dissertation on the Winter Solstice. I can solve a 3x3 rubics cube in about 2 minutes.
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Education
  • University of Michigan
    PhD, Geology, 2000 - 2005
  • Vanderbilt University
    MS, Geology, 1998 - 2000
  • Olivet Nazarene University
    BS, Geology, 1992 - 1996
Charles Carrigan's +1's are the things they like, agree with, or want to recommend.
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We stayed here one night, but I doubt I will do so again until there is significant work done to improve it. The office staff was pleasant and helpful. The site was a good size and flat and grassy, although some muddy holes need new soil and grass replaced. The trees provide good shade from the sun if you choose your site carefully, but there is no privacy shrubbery between adjacent sites. The electric outlets were in good working condition, with 4 20-amp slots so we could easily charge our electronic devices. One of the biggest problems was the water at the site was a pale brown color, and this was the case at all nearby sites and in the bathroom, so we had to buy bottled water for our needs. Another big issue was that the mini-golf course was completely closed, which we did not find out until we arrived. We had planned on using it, so we ended up spending another $25 at another place in town. Another issue was that the large trash bins were overflowing with garbage the entire time we were there, which was disgusting. The coffee shop that is also part of the site was also completely closed, which again we did not know until we arrived. Given the amount of poor upkeep and repair, I do not feel that this was worth the $40 spent, and I would not recommend this place until things are put again into good working order.
• • •
Public - a week ago
reviewed a week ago
Room was good, pool was warm, help was friendly.
Public - a month ago
reviewed a month ago
This is a beautiful spot to stop coming down Shell canyon. The Shell Creek waterfall is a short walk down some stairs, but it is well worth the effort. the path around the area is also a really nice walk to see the canyon and the surrounding rocks and cliffs.
Public - a month ago
reviewed a month ago
Great trails to hike or bike here in the middle of Rapid City. This park is basically continuous with 3 others all next to each other here. The trails include a couple of gravel roads but most are dirt trails. They are marked, and the map displays are fairly close to correct, but there are a lot of trails not shown on the map.
Public - a month ago
reviewed a month ago
90 reviews
Map
Map
Map
This overlook is really fantastic. Beautiful views of the Absaroka in the distance. There are some pit toilets a short walk down some stairs also, and plenty of parking. Friendly chipmunks also looking for a treat are abundant as well.
Public - a month ago
reviewed a month ago
This is a truly exceptional natural site where the footprints of dinosaurs are found. They can be difficult to see, but looking carefully you can find numerous tracks.
Public - a month ago
reviewed a month ago
The anatomy of the dinosaurs is ridiculously bad, but I guess our scientific understanding has come a long way. The views of the city are nice, and the ice cream they sell at the store is really good.
Public - a month ago
reviewed a month ago