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A geological map of Australia, at 1:1 million scale.

Geology
The many stories in a map - V2.0

Geological maps indicate by colour or symbols where strata are exposed at the surface, and its age and sediments. However, as Bill Langer explains, even with the assistance of modern technology, the task of identifying potential sources for crushed rock within the strata is a challenge … Read more »
The disused Bridge Street Quarry in Toowoomba was on the list of trade opportunities discussed on a week-long trade mission to New Zealand by a 70-strong Toowoomba Regional Council delegation.

News
Trade mission highlights gardens project

Converting a century-old disused quarry into a botanical gardens modelled on a New Zealand tourist attraction has figured prominently in an international trade mission. Read more »
A fragment of smectite.

Geology
Smectite clay - a dog's best friend!

As we all know, aggregate can be used in a multitude of daily applications – from paving roads to the production of personal hygiene and make-up products. It is also employed in some medications – and for one little dog, a little bit of clay can go along way, as Bill Langer explains … Read more »
The idle Bridge Street Quarry is the site of the proposed Quarry Gardens in Toowoomba.

News
International experts consult on Toowoomba gardens project

A New Zealand ‘quarry garden’ has been promoted as a ‘template’ for converting a disused Toowoomba site into botanical gardens. Read more »
A UK resident is working ‘tooth and nail’ to uncover the location of a quarry where a prehistoric hippo tooth was discovered.

News
Further digging needed for fossil location

Mystery surrounds the original location of a prized fossilised hippo tooth that was purportedly discovered in a UK quarry in 1958. Read more »
The Great Sand Dunes National Park in Colorado, USA, flanked by the Sagre De Cristo Mountains.

Geology Talk
Blown away: Nature's frac sand processing system

In reviewing his enormous output over nearly two decades, Bill Langer provides an update on a story he previously submitted about proppant – or frac sand … Read more »
Carving stone – eg marble, granite, tuff – has been commonly used by artisans on grand monuments such as the Lincoln Memorial.

Geology
D is for dimension stone

As he ponders the massive back catalogue of material he has written for Quarry over nearly two decades, Bill Langer this month ‘rights’ a creative ‘wrong’ … Read more »
The quarry industry is benefiting from the historical Victorian Parliament House building’s makeover.

News
Iconic stone restoration project moves into next phase

Stone from two local quarries is being used to restore Victoria’s iconic Parliament House, with the role of the industry in the 10-year-plus project being heralded by the legislative establishment. Read more »
Defining your reserves is not that scary!

Geology
Need help defining your reserves?

A month after reviewing an article he wrote nearly two decades ago about the geologist’s role in the valuation of quarry reserves, Bill Langer describes how such reserves should be classified and defined today … Read more »
A “mum and dad” operation that provides a truckload of bank-run sand and gravel to a customer may not care about aggregate reserves – but a buyer for the same site would want to thoroughly understand them.

Geology Talk
How much are your reserves worth?

A mere 18 years after he wrote a column for this publication about the geologist’s role in the valuation of aggregate reserves, Bill Langer now revisits the topic and re-evaluates … Read more »

Geology
Global aggregates production: 1998-2017

Nineteen years to the month that he began his long association with this publication, Bill Langer reflects on the performance of global aggregate production in this period – and how it was impacted by the global downturn of the past decade. Read more »
The surface of Abu Dhabi’s Yas Marina Circuit for its F1 Grand Prix derives from the same greywacke aggregate being studied to understand how life could occur on other planets.

News
Formula One aggregates point to life on Mars

Rocks that originated from a quarry in England’s south-west are currently being studied to help scientists understand how life could occur on other planets. Read more »


 


Thursday, 16 August, 2018 08:33pm
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