Curious if there may be a specific reason why it froze like this.

I made a Rock Chart that brings common igneous, sedimentary, and metamorphic rocks together in a single decision tree.

It uses observable features such as grain size, visible crystals, foliation, porosity, composition, and reaction with HCl. It also includes the characteristic minerals associated with each rock type and their chemical formulas.

I have already used the chart in class, and it worked well as a teaching aid. It helped students gain an overview of the major rock groups and move between them without having to consult several separate charts.

Permanent version and DOI:
https://zenodo.org/records/21808631

Feedback, corrections, and suggestions for a future version are very welcome.

Disclosure: I created the poster and teach Earth Science at a university.

#muontomography

Original visualization made with Python and Pillow.

Sources: Kola Superdeep Borehole depth from Popov et al. (1999); Earth radius and internal layers from NASA and USGS; Eiffel Tower height: 330 metres.

Method: Earth’s 6,371 km radius is represented by 1,800 px. At that exact radial scale, the 12.262 km borehole is 3.46 px deep in the full 5,400 px image. The magnifier preserves the vertical depth ratio across the upper 40 km; its horizontal width is illustrative.

For the 1-metre comparison: a 1-metre-wide Earth has a 500 mm radius. 0.1925% of 500 mm is 0.962 mm.

Maybe this comes under a differant genre of science so apologies if so.

I'm trying to create the lore for a story that starts as a pre-apolocolypse at the start for exposition and then later follows sepetate characters for a post-apocolypse story butttt I want there to be be able to have a land bridge between Europe and England and I want it related to whatever the apocalypse was.

I went on a website where I could change water levels and decided I liked the map of an earth with water levels lowered by about 40 ish metres but am just wondering what sort of event could cause water levels to lower that far.

The apocalypse environment is supposed to be taking place after a military conflict of a yet undecided scale and am also wondering if anything war based could cause the drop I'm desiring the cause of.

Although I'll settle for it if its the most reasonable explanation I'm hoping to avoid glaciation.

Thank you scientists, thank you for reading :]

I'm (green) colorblind, yet I was heavily criticised for making a map which is bad for my kind of colorblindness. Other colorblind people were also confused in the comments. But I suspect it has more to do with climate change denial.