To put it succinctly, scorching is not melting. They are very much mutually exclusive terms.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
So the current CSRC calc uses melting as a method for it's result, under the pretense that Boros' attacks are all heat based and that they look like melting, as well as the databook stating his attacks would "scorch" the earth. Credit to @Qawsedf234 for this translation:
and that I was informed that melting is the closest thing to scorching...If it means much this is the databook statement about the attack
Relevant sentence being in the bottom left corner (they use a weird-ass font though so you'll have to really look closely if you want to recognize the kanjis).
The most important word here being 削る/kezuru which we're given the furigana of just above けず/kezu so there's no mistake.
- 地球を削る絶望の咆哮!!
- Chikyuu wo kezuru zetsubou no houkou !!
- The roar of despair that scorches the Earth !
A Japanese website that translates their words to English has it as shave too here
Point where, because the closest to what you said in that square is:
So his attack would've "scorched" the Earth, which implies burning/melting the crust rather than just blowing it up or leveling it.
- ..., それは地球を破滅させる消魂の一撃だった
- ..., sore ha chikyuu wo hametsu saseru shoukon no ichigeki datta.
- ..., this was the attack in blind rage that would have ruined the Earth.
Click to expand...
Until I learned in the main OPM thread that scorching and melting are not synonymous with one another, and while Boros' attacks having heat based methods is true as we see above, his "heat based" attacks don't really look a lot like melting and more like scorching or burning something. And really, melting is only shown very clearly in the anime adaptation. So this means that melting for the manga is not a usable option.
Luckily for us, @Epiccheev found this calc, which has it's result of scorching the surface of the Earth, which is the low end, as 1 Exaton, which is a pretty miniscule downgrade. This calc is more preferable as it is closer to what we see Boros' attacks being than melting.