Thursday, May 16, 2013

Field School 2103


Field School 2013
By Corey Lablans
Queen’s University geology department offers a course unlike any other, called Field School. The 3rd year course during the spring involves two weeks in the field, located in the eastern region of Quebec, 12 km away from Vermont.
A view of the hills in Sutton, Quebec were we traversed for two weeks mapping during Field School.
Every year upper-year students always talk about their experience at field school. You never hear them say good things, more or less just saying, “Have fun.”
Well, I just finished my two weeks of Field School and it was definitely an interesting experience. Over the two weeks we examined low to medium grade metamorphic Formations with a combination of pelitic and volcanic protoliths. A lot of the two weeks was spent trying to determine whether one phyllite is this or that.  
Delta Site is were we went to auger to see first hand the depositional progression of a delta. It is a past delta produced by melt water from the last major glacier 11,000 years ago.
Days would start with a 6:30 a.m. with a wake up call, breakfast at 7:00 a.m. followed by an 8:00 a.m. departure. I thoroughly enjoyed the days, as we would hike through the forest seeking out outcrops and identifying them. It was frustrating trying to determine whether you’re looking at the Tibbit Hill Formation, West Sutton Formation or possibly another but nonetheless fun.
4:00 p.m. would come up quickly and it would be time to head back to the hotel. The day was not finished, we might get a short break before super at 6:30 p.m. Following super meetings started at 7:45 p.m. and then back to work till 10:30 p.m., when projects were due.
Some things were a little disorganized, very little time to get work done and frustration was common. Similar to Field Methods last fall, I’m very lucky that I had an amazing group to work with.
Learning to recognize rock characteristics in the field is critical. In this particular case, amygdules characterized one Formation, bedding structures for another and fabric style helped identify the remainders. The Formation, which contained bedding, had many fascinating fold characteristics. Learning how these small-scale folds relate to the overall structure, such as the large folds, was probably one of the more fascinating things I learned. 
Cross-bedding is observed in this metasedimentary Formation, allowing for the younging direction to be determined.
This small scale canoe structure illustrates the larger structure of the area, predominantly that of double plunging anticlines and synclines.
The two weeks of work compiled into a final regional map covering a 15-km2 area and a geological report. Our map by the end looked pretty cool but there were definitely several issues with it. 
An amazing example of a antiform structure at a larger scale, still small relative to the overall regional scale.

Monday, April 1, 2013

Kingston Fossils

Kingston Fossils 
By Corey Lablans

Pulling into the Shriners' parking lot off Princess Street at the end of Collins Bay Road I saw that some excavating had been taking place. As a fossil enthusiast I decided I had to take a look. It is one of those things, fresh limestone, you have to take a look. Like usual, most of my mineral/fossil collecting tools were on hand. Within the first few splits of some dark shale, I uncovered a nicely preserved brachiopod, soon after  some trilobite thoraxes. Here are several specimens that I collected over the two days. Gull River Formation of the Black River Group.

This is the location in which I was collecting. Below the large layer of limestone visible is a dark shale layer, which contains a wide array of fossils. Not easily uncovered but there is potential.
(Daimanella) Brachiopod - roughly 1.5" x 1"
Trilobite Eye - roughly 0.5" x 0.25"
(Ceraurus Cephalon) Trilobite - roughly 1.5" x 2"
Conulariid - roughly 1" x 1.5" - More information visit: http://bit.ly/11dcmFZ
Thank you to Peter Lee and Nathan Thomas for identifying it.
Cephelopod - roughly 6" x 1"


The species names are my best guess. If you know the correct names please let me know, so I can correct them.

The two images below are from the site showing various Ordovician fossils. 

































Thank You

Wednesday, March 27, 2013

New York Fossils

New York Fossils
By Corey Lablans

Last summer I was collecting fossils in Fort Erie, along with a knowledgeable group, I believe it was the Niagara Peninsula Geological Society. One of the individuals (forget his name) just finished collecting fossils in the state of New York. He had a wide variety of fossils: Gastropods, Brachiopods, Horn Corals and many more. He gave me a few samples, which I finally got around to photographing the other day.  

Nanticonema lineata (Gastropod) - Windom shale of the Moscow formation, Lakeview, New York

Favosites (Coral) - Centerfield member of the Ludloville formation, East Bethany, New York
Cystiphylloides (Coral) - Centerfield member of the Ludloville formation, East Bethany, New York
Athyris spiriferoides (Brachiopod) - Windom shale of the Moscow formation, Lakeview, New York  
THANK YOU

Tuesday, March 19, 2013

Brachiopods from the Ashlock Formation
By Corey Lablans


Every February the climbing club that I belong to heads down to Slade, Kentucky for some climbing at the Red River George. One of the days it was a too cold to go climbing, so a group of us decided to go on an adventure, seeking out fossils. No particular goal or location in mind but merely to go driving and check out some road cuts.
Here are some of the fossils that were found that day: Platystrophia ponderosa (Brachiopoda) from the Ashlock Formation in Kentucky



Thank you for checking out my blog. 

Corey Lablans