Geological walks
Opposite: In the Quebradas in New Mexico, the Permian sedimentary formation (Yeso Formation, about 180 million years old) was folded and then cut by a reverse fault during the formation of the Rocky Mountains (Laramide orogeny which began 75 million years ago). The whole was recut perpendicularly by a normal fault during the formation of the Rio Grande rift which began more than 30 million years ago.
Here, I was correcting the structure reading exercise for my 1st grade students.
Geological interpretation of landscapes
The beauty of certain landscapes or geological structures sometimes challenges us. We would like to understand their natural origin.
Today we have many scientific tools that often allow us to answer our questions, at least in broad outline. The most important parameter here is time, which is beyond the human scale and must sometimes be counted in hundreds of millions of years. A landscape is the result of a succession of stages such as: the setting up of rocks, mechanical transformation of their geometry (folding and faulting) and erosion. It is sometimes necessary to have knowledge of phenomena on a large geographical scale (relative movements of tectonic plates for example) in order to be able to interpret a local structure like the one I present above.
Solving geological problems is a way to better understand the history of our planet and to better put the notion of time into perspective.