Decomposition Reactions 1. Place approximately half a spatula full (roughly pea-sized) of copper(II) carbonate in a dry test tube. If you do not have a clean, dry test tube, ask your instructor for one. Do not try to dry a test tube during the laboratory period.
What Is the Asthenosphere? The asthenosphere is part of the upper mantle located below the crust of the earth. The asthenosphere boundary is primarily defined by temperature, and it starts when the crust heats up to 1300Â° C. At this temperature the crust begins to melt and move more as a liquid. The asthenosphere is important in plate tectonics, as convection currents slowly move the tectonic plates that lie above.
Characteristics [edit]. The asthenosphere is a part of the upper mantle just below the lithosphere that is involved in plate tectonic movement and isostatic adjustments.t lies below the lithosphere, at depths between approximately 80 and 200 km (50 and 120 miles) below the surface. The Lithosphere-Asthenosphere boundary is usually referred to as LAB. The asthenosphere is generally solid, although some of its regions could be melted (e.g. below mid-ocean ridge).