{\rtf1\ansi\ansicpg1252\cocoartf1038\cocoasubrtf360
{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
{\colortbl;\red255\green255\blue255;}
\paperw11900\paperh16840\margl1440\margr1440\vieww9000\viewh8400\viewkind0
\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\ql\qnatural\pardirnatural

\f0\fs24 \cf0 Surprising heart of Earth\'92s inner core\
\
Scientists from China and the U.S. say that new research indicates the innermost core of our planet has another, distinct region at its centre\
-----------------------------------------------\
EARTH ANATOMY\
\
Earth 12,742km in diameter\
\
Crust 5-50km thick\
\
Upper mantle 360-405km\
\
Transition zone 250km\
\
Lower mantle 2,230km\
\
Outer core 2,260km\
\
Inner core 1,220km\
\
Moon 3,474km in diameter\
\
Equator\
-------------------------------------------------\
INNER CORE\
\
NEW THEORY\
\
Outer inner core: Iron crystals aligned north-to-south\
\
Inner inner core: Iron crystals aligned east-to-west\
\
As it is not possible to drill into core, scientists collected data from echoes generated by earthquakes\
\
Seismic wave data implies significant event could have flipped orientation of core, switching magnetic field from equatorial to polar axis\
--------------------------------------------------------\
Sources: Nature Geoscience, The Deep Carbon Observatory\
\
words 145 }