Eromanga Inland Sea: Australia's Lost Ancient Ocean
Chapter 1

The crimson geology of the desert

Chapter 2

Ancient wisdom and Songlines

Chapter 3

Bizarre beasts of the red dust

Chapter 4

Modern survivors and massive stations

Ch 1 · The crimson geology of the desert
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matilda Animals and humans survive extreme temperature swings in the Australian desert

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The crimson geology of the desert
BETA

matilda Drag mineral layers to discover how weathering turned the Australian desert a deep crimson.

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The sacred sands of Uluru

matilda The 550-million-year-old Arkose sandstone formation remains a sacred site cared for by the Anangu people for over 30,000 years.

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Quiz

How high does the sandstone monolith of Uluru rise above the surrounding Australian desert?

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Quiz

Which Indigenous Australian group is the traditional custodian of the sacred Uluru monolith?

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What is lost to erosion in one place can nourish life far away.

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The lost Eromanga inland sea

matilda Prehistoric marine reptile fossils in the outback have transformed into glittering, colorful opals.

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Quiz

In which Australian desert town are prehistoric marine fossils commonly found preserved as valuable opals?

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Quiz

What prehistoric body of water covered a third of Australia during the Cretaceous Period?

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Fun Fact

Outback dust: In 2009, a massive dust storm carried 5 million tons of Outback soil to Sydney, turning the entire city bright orange.

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Quiz

What chemical compound is responsible for the distinct red color of the Australian Outback?

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Quiz

Where does the nutrient-rich red dust from Australian Outback storms travel to fertilize marine life?

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Glossary
iron oxide (noun)
A chemical compound composed of iron and oxygen. This compound colors the ancient gorges of the Pilbara region, creating their iconic rusted appearance.

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Quiz

Why does the Australian Outback experience such extreme temperature drops at night?

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Quiz

What is the scientific term for the extreme temperature variation between day and night?

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Gossip

Would you rather camp in freezing desert nights or hike in blistering midday heat?

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