Wordsmith Talk |
About Us | What's New | Search | Site Map | Contact Us | |||
Register Log In Wordsmith.org Forums General Topics Wordplay and fun Footnotes
Previous Thread
Next Thread
Print Thread
The columns at The Devils Causeway in Ireland (and elsewhere basaltic flows are found) are a product of the lava's cooling. The cracks occur at right angles to the top and bottom of the flow and form columns that are inevitably six sided. The hexagonal cross-section reflects the fact the dominant stresses in the cooling rock are planar, parallel with the flow's surface.
The columns in the cliffs behind Bombo beach at Kiama on the New South Wales south coast occur in a rock unit with the charming name of the "Bumbo Latite"! Latite is a cousin-brother of basalt. A little further south, one of the columns has fallen out of a flow that protrudes into the sea. This forms "The Little Blowhole" - lots of fun to drop things into just as the swell rushes up the underside of the flow!!
stales
Moderated by Jackie
Link Copied to Clipboard
Forum Statistics Forums16Topics13,913Posts229,361Members9,182 Most Online3,341
Dec 9th, 2011
Newest Members Ineffable, ddrinnan, TRIALNERRA, befuddledmind, KILL_YOUR_SUV
9,182 Registered Users
Who's Online Now 0 members (), 647 guests, and 0 robots. Key: Admin, Global Mod, Mod
Top Posters(30 Days) A C Bowden 22
Top Posters wwh 13,858Faldage 13,803Jackie 11,613wofahulicodoc 10,557tsuwm 10,542LukeJavan8 9,919Buffalo Shrdlu 7,210AnnaStrophic 6,511Wordwind 6,296of troy 5,400
Forum Rules · Mark All Read Contact Us · Forum Help · Wordsmith.org