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A permeable paver demonstration, in Austin’s Ferry, Tasmania. Image courtesy: JJ Harrison.

Geology
Aggregate and the environment

Some fortuitous breakfast conversation, courtesy of his wife Pam, has Bill Langer now chomping at the bit (in horseracing parlance!) to vent about the benefits of aggregate for the environment … Read more >>
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Just your average, common or garden, boring quarry pit … Bill Langer begs to differ!

Geology
Is your quarry an unappreciated geologic wonderland?

From the Škocjan Caves to the Mendenhall Glacier, from the Egerszalók Travertine to our very own Glass Mountains, Bill Langer has discussed some fascinating geological wonders in the past 12 months. Now he turns his attention to one last wonder – and it may actually be in your own backyard … Read more >>
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The disused quarry site lies underneath the city of Paris. Image courtesy: The Guardian.

News
New life in ‘dead’ underground quarries

According to reports, 300km of underground tunnels and disused quarries could play a significant role in Paris’s re-development plans. Read more >>
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A view of the Milky Way towards the constellation Sagittarius (including the galactic centre), as seen from the Black Rock Desert, Nevada. Image courtesy: Steve Jurvetson.

Geology
The Milky Way: A galactic wonder

After charting many of the world’s geological curiosities in the past year, Bill Langer turns his attention this month to the heavens – and heartily recommends you get out into the great outdoors this summer … Read more >>
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Figure 2. Note the erratic contours over vegetation caused by using DSM instead of DTM.

Geology
Commissioning, interpreting the right drone data

As drones become more integral to the surveying and planning of quarrying sites, so operators need to be more familiar with the exact types of data they require. ERIK BIRZULIS explains the differences and confusion between drone deliverables and the pitfalls to be avoided. Subscription required. Read more >>
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Patrons absolutely have to stay on the trails within the Kartchner Caverns. They must only touch the handrails and are barred from touching any of the natural formations.

Geology
Kartchner Caverns –preserving a ‘living’ underground sanctuary

Last month, Bill Langer described the visit he, his wife Pam and their grandchildren Donovan and Delaney made to the Kartchner Caverns, a world-class geologic wonder located in south-eastern Arizona. Bill rounds out the visit with some background about how the caverns were discovered and developed … Read more >>
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Around 90 sites, each containing up to 400 vessels, make up the Plain of Jars.

News
Drones used to study ancient quarries

Archaeologists from Australia have been using drones to remotely study ancient quarries close to a mysterious place of ancient historic interest in Laos known as the Plain of Jars. Read more >>
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The Big Room at the Kartchner Caverns State Park offers visitors a close-up look at the formations.

Geology
Kartchner Caverns – a world-class geologic wonder

Our geology guru Bill Langer this month takes us – and his wife and grandchildren – on a visit to one of the world’s most spectacular living cave systems … Read more >>
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The Icelandic capital of Reykjavik today.

News
Elves blamed for mishaps after road clearing work

A sacred rock in Iceland that highway workers had buried in debris from a mudslide had to be unearthed after it purportedly angered a race of mythical elves. Read more >>
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The Uffington White Horse is a geoglyph cut into a steep hillside that reveals the underlying chalk.

Geology
Chalking it up to coccoliths

Never one to resist a good yarn, Bill Langer this month provides some pre-game entertainment for parents before a school baseball match. He chalks it all up to the simple line markings … Read more >>
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Saturday, 29 April, 2017 11:28pm
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