Petrogenesis of late Ordovician high Ba-Sr quartz diorite in the northern Qinling orogeny and its geological implication Provisionally accepted Biao Du 1,2* Duanchang Zhao 1,2 Yafeng Zhang 1,2 Zhenkai ...

The Caledonian Orogeny (430-390 million years ago) was a period where the landscape changed significantly, due to the moving of tectonic plates and subsequent earthquakes.

The story involves an inland sea, powerful rivers, the shearing of the Earth’s crust along major fault systems, magmatic intrusions and volcanic eruptions.