Lithosphere-Asthenosphere boundary 100 km deep. Lithosphere-Asthenosphere boundary The Lithosphere-Asthenosphere boundary (LAB) represents a mechanical difference between layers in Earth’s inner structure. Earth’s inner structure can be described both chemically (crust, mantle, core) and mechanically. The Lithosphere-Asthenosphere boundary (referred to as the LAB by geophysicists) lies between Earth's cooler, rigid lithosphere and the warmer, ductile asthenosphere. The actual depth of the boundary is still a topic of debate and study, although it is known to vary according to the environment. The LAB is determined from the differences in the lithosphere and asthenosphere including, but not limited to, differences in grain size, chemical composition,
For the Beauty of the Earth of new lyrics not found in the original. The track also has a slightly shorter run time of 3:15. For the Beauty of the Earth "For the Beauty of the Earth" is a Christian hymn by Folliott S. Pierpoint (1835-1917). Pierpoint was 29 at the time he wrote this hymn; he was mesmerized by the beauty of the countryside that surrounded him. It first appeared in 1864 in a book of Eucharistic Hymns and Poems entitled "Lyra Eucharistica, Hymns and Verses on The Holy Communion, Ancient and Modern, with other Poems." It was written as a Eucharistic hymn - hence