The strata exposed in Yellowstone Park are interesting.

The strata exposed in Yellowstone Park are interesting because there is a large volcano and various geothermal activities, which will be remembered by the strata.
Such strata, in the middle of the gullies of weathered ordinary sedimentary rocks, are sandwiched with a neat layer of vertical striped rocks, which are columnar joints formed by volcanic eruption under pressure (similar to the Great Way of Northern Ireland). The lower layer is an eruption 600,000 years ago, and the upper layer is an eruption. Tens of thousands of years ago;
The layers of deposited rocks also show different colours and textures with the change of climate; some colours may even be deposited by a large number of heat-resistant microbial corpses (for example, the layer of green at the bottom of figure 3).
Feel like ____________. It’s like Tiramisu made by nature. Hard metamorphic rocks with biscuit bottoms (gneiss?) There are soft cake-like sedimentary rocks (limestone?) There are chocolate-like magmatic rocks(No, I’m not talking nonsense.)

(… Anyway, I can only talk about it here. Going to Huangshi really wants to kidnap a geologist and forcibly visit the World Wide Web. Welcome to geologist.Yellow Stone National Park, USA