The Australian mainland's continental crust, excluding the thinned margins, has an average thickness of 38 km, with a variety in thickness from 24 km to 59 km.[149] Australia's geology might be divided into many major sections, showcasing the continent grew from west to east: the Archaean cratonic shields uncovered http://christianymxjt.fireblogz.com/20026268/the-fact-about-finding-the-answers-about-swift-systems-for-lake-macquarie-wedding-photos-that-no-one-is-suggesting