Geology Course Experiences – January 2025

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I started a second semester at Missouri State University in January – taking a geology course (online) and lab (in person). The semester did not start out as well as the one in the fall:

  • Unfortunately for me, the department had made the lab optional so the university’s program for people over 62 only applied to one part – make the semester considerably more expensive than the fall semester.

  • I also mistakenly signed up for an online lecture course that didn’t begin until March (it didn’t occur to me that there would be a schedule like that) so I had to make a quick adjustment to get a course that matched the lab duration.

  • The lecture part of the course (online) had a digital textbook that include study aids that was required for the course….that cost over $80. It was quite a ‘sticker shock.’

The first lab happened before I got the lecture course situation fixed, but evidently it was also before most people in the lab had attended a class too. The instructor walked us through the lab as a group, but she talked to fast that I wonder how many of the students understood it very well. Fortunately it was a topic I was familiar with.

I’ve completed the first two chapters of the textbook that have been assigned – and the associated questions/quizzes. There was one short YouTube video that was included in the assignments. I am disappointed that the professor does not include any recorded lectures for the online course; she did invite us to a similar course that she is teaching in person if we wanted to hear a lecture on particular topics…and I have gone to one.

The course and lab both reference field trips but there were none listed on the schedule for either one. I asked the lab instructor…they only knew that there hadn’t been field trips since COVID. When I emailed the professor, I was told that there would be a field trip in early April. Would it have happened without my query? Geology field trips are some of my favorites. When I was in high school, I went on several field trips with Southern Methodist University’s geology department since I had a friend whose father was a paleontologist there…and then in college I tagged along with my husband’s geology class at El Centro (community college) and University of Texas (rock roses and marine fossils and caves). In Maryland, the master naturalist training included a hike in Patapsco Valley State Park with a geologist! So – I really want at least one geology field trip from this course.

The professor also sent out a pdf with a self-guided geology tour of the campus. I did it last week; the day was too cold to do it leisurely although I did notice non-geology things along the way too.

As I walked from the lecture building toward the first stop on the tour – I made a slight detour to photograph Ozark Witch Hazel that blooms in January. The buds were open but the streamers were still curled…probably because it has been very cold during the past week.

The first stop was to see the “Carthage Stone” (limestone) façade of Carrington Hall. The foundation of the building is Missouri Red Granite from the St. Francois mountains of southeastern Missouri.

Inside the building, there is a tile floor (not a geological feature) and steps/decorative spheres of marble….a grand staircase.

I photographed tiny fossils in the polished limestone stairs of Hill Hall. The building was constructed in 1924…one of the older buildings on campus.

The Memorial Garden near the student union building has a gabbro slab (igneous like granite but with larger crystals and dark silicate minerals like plagioclase feldspar). There is also as sandstone ramp/wall along the walk to the Memorial Garden. The stones are from northwestern Arkansas and reminded me of some sandstone my grandfather used to construct some benches back in the 1960s.

There are dolomite rocks in some of the planting areas – ugly but interesting.

At the southeastern door of the student union, the slab to the right of the door is more Carthage Stone…this time with more visible fossils! The step up to the door is granite porphyry…with different crystal sizes indicating that it had 2 phases of cooling and crystallization.

It had been a cold walk but the exercise of being out and about felt good as I walked back to my car to go home. I am thinking of the walk as the first field trip of the course.

Identifying Woody Plants (Month 2)

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The Identifying Woody Plants field class I am taking at Missouri State University has met 5 more times since my last post about the field sessions on the campus.

I am continuing to take pictures of items in the classroom before class:

An opened Maclura pomifera (Osage orange) fruit

Some Quercus macrocarpa (Bur oak) acorns

An herbarium page showing Tilia americana (American Basswood) fruit which we have seen in the field, but my pictures were not very good.

Cuttings from two plants were brought in and we were asked to ID them based on our notes – with the hint that the first one had milky sap (hard to see since it had been cut):

Morus alba (white mulberry) – a non-native that is frequently seen as a ‘weed’ tree and Vitis (grape).

Recently the walk from the parking lot to the classroom building has been full of late blooming pollinator plants and fall foliage.

The one session where we stayed on campus added some new trees to our list:

Quercus bicolor (Swamp white oak)

Sassafras albidum (Sassafras)

Carya ovata (Shagbark hickory)

Quercus lyrata (Overcup oak)

We also saw some review trees and I got better pictures of Celtis occidentalis bark (Rough hackberry)

And some add odd growth of a Liriodendron tulipifera (tulip/yellow poplar). The trunk of the tree was growing at a slant rather than straight upward and it had small branches coming out relatively close the ground.

The hikes on campus and further afield have been more pleasant this past month because the temperatures have been cooler. There have been no rainy days in the field either!

Previous posts about Identifying Woody Plants field class

Identifying Woody Plants (Month 1)

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The Identifying Woody Plants field class I am taking at Missouri State University has met 5 times. There have been two off-campus field trips that I’ve posted about previously: Springfield Botanical Gardens and Lovett Pinetum. The other sessions have included walks around the MSU campus identifying trees. Just as in the off-campus field trips, I’ve tried to get good pictures of the trees so that I can include them in my PowerPoint based ‘flashcards’ to help me learn all the woody plants presented in the class (even though I am not taking the class for credit).

In the first class, I tried using my cell phone…juggling it with my small notebook for note taking. It did not work so well; I only got reasonable pictures for three of the trees we encountered.

Black gum – Nyssaceae – Nyssa sylvatica

Buckeye – Sapindaceae – Aesculus

For the next campus walk – I used my small point-and-shoot camera and managed more pictures. I had front pockets for both the small notebook and the camera. It was a very hot/sunny day; I wore my fingerless gloves to keep my small notebook dry. I did not feel well during the later parts of the walk even though I was drinking plenty of water.

American Sycamore – Platanaceae – Platanus occidentalis

Yew – Taxaceae - Taxus

Flowering dogwood – Cornaceae – Cornus florida

Bald cypress – Cupressaceae – Taxodium distichum

Shortleaf pine – Pinaceae – Pinus echinata

American basswood – Malvaceae – Tilia americana

The third walk around campus was easier; I had my system for juggling the notebook and camera…and it wasn’t quite as hot. I also wore my hiking boots, so my feet did not hurt like they did on one previous campus walk. I am still not managing to photograph everything during the walk; for the ones I miss (i.e. not listed in this post) I glean photos from the class charts and/or web searches to populate my study Powerpoint.

Red Maple – Sapindaceae – Acer rubrum

Burning bush – Celastraceae – Euonymous alatus

Northern red oak – Fagaceae – Quercus rubra

Northern catalpa – Bignoniaceae – Catalpa speciosa

Yellow poplar – Magnoliaceae – Liriodendron tulipifera

True cedar – Pinaceae - Cedrus

Siberian elm – Ulmaceae – Ulmus pumila

Sweet gum – Altingaceae – Liquidambar styraciflua

Pin oak – Fagaceae – Quercus palustris

Honeylocust – Fabaceae – Gleditsia triacanthos

There is some memorization involved…but I am beginning to find that I remember the scientific names as well as the common names as I continue to study…adding new woody plants to the list each week. The class is living up to my expectations in helping me expand my identification skill of woody plants of Missouri.

Previous posts about my experiences in the Identifying Woody Plants class at Missouri State University