Last weekend I capped off a week of training in petroleum geoscience with a two-day field trip. The company encourages us to get a certain number of training days in each year so this year I decided to supplement my skills with some industry-related training. For 4½ days I learned all about rocks and minerals, tectonic plates and continental drift, depositional environments, well logs and seismic logs, reservoir properties, and much more. It was a very interesting and it made a lot of things I'd been working on a little bit more clear.
We boarded a bus at noon on Friday and drove to
Canyon Lake, where a fairly recent release into the "safety valve" during heavy floods had literally washed away the surface revealing some very interesting limestone. We got to see faults and strata, lots and lots of fossils, and even a few dinosaur footprints. One of the main points of the field trip is to give a sense of scale to the reservoirs that exist deep underground. This bit of limestone was pretty large, but tiny in comparison to a normal reservoir.
We stayed at a hotel in New Braunfels, then on Saturday we went to a machine-dug trench to see a real-life cross section of some more limestone, then to a point bar on the Brazos River to see how those form and turn into reservoirs in meandering river systems. Very interesting (don't buy real estate across the river from a point bar!).
When I got home Saturday night, I brought home some fossilized clams and other sea creatures. I had a lot to talk about at dinner and as I talked and gesticulated to explain some of the concepts I'd learned to Amber, Olivia would copy my gestures and words exactly, big words and all. She thought it was very funny (as did I).

The release valve area.

A little fault. (Who's fault is it?)

Dinosaur footprints.

Millions of fossils everywhere.

Point bar on the Brazos River.