Comprised of iron-nickel alloys, FTP, name this * liquid layer of the earth just below the mantle.
In late 2001, scientists from UC-Santa Cruz detected what appear to be "rigidity zones" in this region, and scientists at Johns Hopkins have proposed that an analog of the jet stream might be found in it.  About 2,300 kilometers thick, it blocks S waves, and its upper bound is the Gutenberg discontinuity.  Comprised of iron-nickel alloys, FTP, name this * liquid layer of the earth just below the mantle.
In late 2001, scientists from UC-Santa Cruz detected what appear to be "rigidity zones" in this region, and scientists at Johns Hopkins have proposed that an analog of the jet stream might be found in it.  
outer core (prompt on "core," and accept liquid core before *)