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In beach replenishment, a dredge off-shore will normally pump a water sand slurry through large pipes onto the beach.

Geology
Where the sand meets the sea

Natural sand is a diminishing resource around the world, but still in enormous demand. The dwindling of sand supplies is most noticeable on beaches worldwide. Bill Langer discusses how onshore sand quarries may in the future provide some salvation for preserving and rehabilitating our shrinking coastlines. Read more »
A chainsaw blade tipped with diamond cutting segments is one of the tools used to quarry Portland dimension stone. Image courtesy: <em>Dorset Echo.</em>

News
Urban encroachment doesn’t stop quarry

An innovative underground quarry operation has allowed valuable dimension stone to be extracted while urban life continues above. Read more »
The new library features a drill core viewing area.

News
New rock drill core library opens

A newly constructed, state of the art facility will soon provide access to more than 100 years of geological information. Read more »
USG’s Plaster City gypsum quarry was selected as the site of the Planetary Deep Drill’s first field tests.

News
Space drill tested at gypsum quarry

A gypsum quarry has been used to test a prototype space drill that scientists hope will one day reveal the sub-surface secrets of other planets. Read more »
The fully operational model crushes actual quarried stone sourced from a local site. Image credit: The Advocate.

News
Working model quarry delights young and old

A working model of a quarry will be exhibited next month, providing the general public with an accessible way to understand the extractive industries. Read more »
Prototypes for space use have been built based on a Cat 287 C skid steer loader.

News
Caterpillar joins the space race

The reality of mining on asteroids is growing, with Caterpillar teaming up with NASA to develop it. Read more »
Explosives generate stress wave propagation through unsaturated granular media and can lead to rock fracturing.

News
Maths to reduce rock fractures

Researchers are developing mathematical models to reduce rock fracturing and soil liquefaction caused by natural or man-made disasters. Read more »
Scorpions are leading the way in research to develop tougher machinery.

News
Bionic scorpion holds key to tougher machinery

There’s an unusual sting in the tail of the yellow fattail scorpion — it is leading the way in research that will help to develop tougher machine components for plant and equipment. Read more »
About 85 per cent of the aggregate produced by Front Range Aggregates leaves the plant by rail.

Geology
R is for Rocksicle

On his circuit of the A-Z of quarrying terms, Bill Langer visits a Colorado aggregate rail operation to learn how it manages and transports its end product and ensures the aggregate does not freeze into “rocksicles”. Read more »
Millstones have been used for grinding grain since Roman times

Crushing
M is for millstone

Continuing his passage through the A–Z of quarrying terms, Bill Langer charts the story of the millstone quarry on both sides of the Atlantic. Read more »


 

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