At https://phys.org/news/2023-06-roadblocks-limits-geoscientists-alaska-denali.html … this link concerns the Denali fault that arcs across Alaska to neighbouring Yukon. It is thought to be responsible for raising the mountains of the Alaska Range. Geoscientists have been collecting field data in order to discover connections between Earth’s mantle and its crust. The research is published in the journal of Geology, June 2023, and they are suggesting there is a deep connection to the mantle. They go on to compare the Denali fault with the San Andreas fault in California and the East Anatolian fault system in eastern Turkey.
At https://phys.org/news/2023-06-tectonics-geoscientists-probe-geochemistry-microbial.html … we are in the high Andes, in Peru. This is another range of mountains that is thought to have formed as a result of tectonic processes, such as plate movement and subduction. The target of the research was hot springs of the Andes. There are thousands of these in the high peaks that run along the spine of South America. The research looked at 14 of them in Peru and discovered microbial community composition was distinctly different in some of them. Tectonic processes control hot spring temperatures, and this geochemistry perhaps formed on differing occasions of tectonic activity. The researchers are in a new territory as what might control microbial communities as poorly understood.