Crust (geology) formed almost immediately after formation of the Moon. Magmatism continued after the period of intense meteorite impacts ended about 3.9 billion years ago, but igneous rocks younger than 3.9 billion years make up only a minor part of the crust. Crust (geology) In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase (solid crust vs. liquid mantle). The crusts of Earth, Moon, Mercury, Venus, Mars,
We Do What We Want decision to write a heavier and more hardcore album than they had done in the past. Commenting on the band's evolved sound, bassist/vocalist Toby Morrell said, "I don't think we ever thought we'd get as heavy as we are now, but I'm glad we have." Though Shelton was not an active member of Emery during the writing process for "We Do What We Want", he wrote the final track on the standard edition titled "Fix Me," and the song "Crumbling" from the deluxe edition. Regarding the album's lyrical themes, vocalist Toby Morrell stated: In the month of March 2011, an