Talk:Earth's crust

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Chart of element abundance appears mis-labeled.

Y-axis in element abundance chart claims it represents "atoms per 10^6 atoms of Si". However, if that's the case, Si itself should have a value of 10^0 (that is, 1). Instead, it has a value of 10^6.

I believe the axis label should be "per atom of Si", unless I'm missing something?

I agree. While this is an excellent chart overall, the scaling of the y-axis combined with the label is confusing. The current label makes it unclear if the scale is supposed to be in units of ‘single atoms’ (then Si at 10^6 is correct) or in units of ‘10^6 atoms’ (then Si should be shown at 10^0). The phrase “atoms […] per 10^6 atoms of Si” could be interpreted either way.

I believe the intent was the scale to be in atoms, to also indicate that Si was the reference for the scale, and that the reference value was set to 10^6 atoms (not 0 or 1), thus Si is shown at 10^6.

The label text “Abundance, atoms of element (relative to 10^6 atoms of Si)”, might be less confusing. Ryojin314159 (talk) 15:14, 15 April 2023 (UTC)[reply]

"Allowing"

Allowing in the first paragraph is obscure. Heat is bound to move from hot bodies into space. Eschew participles, and take the space to say exactly what you mean! Macdonald-ross (talk) 09:41, 13 September 2019 (UTC)[reply]

Minor conflicting information in geothermal gradient

I just referred to the aforementioned article in the intro, yet apparently they state mildly different values for the increase in temperature/km in Earth's crust.

The temperature increases by as much as 30 °C (54 °F) for every kilometer locally

vs

temperature rises in about 25–30 °C/km (72–87 °F/mi) of depth near the surface in most of the world

This is a pretty minor issue since it is not horribly inconsistent and both state a different source. However, the latter also includes miles and potentially makes this extra confusing. Thoughts?

-- NetSysFire (talk) 17:01, 23 January 2022 (UTC)[reply]

The geothermal gradient varies greatly by region. One seems to be a statement of what the high end of the range is, while the other is a kind of average. So there is no real inconsistency. However, there might be some value in clarifying that these are endpoints/midpoints of a wide range of local values. --Kent G. Budge (talk) 17:53, 23 January 2022 (UTC)[reply]

Also, about that undo, my intention was to add an article in the style of a see also. The geothermal gradient article is definitely relevant and should be linked somewhere, preferably near that part mentioning the temperature of the crust but just putting a "(see also: geothermal crust)" is not going to do it I think so I already tried (and failed) to have a brief summary there to link to that article.

-- NetSysFire (talk) 03:40, 24 January 2022 (UTC)[reply]