Tag

iron ore

11 posts

• 10 July 2026The 1.85-Billion-Year-Old Caldera That Still Feeds the FurnaceIn South Australia's Middleback Ranges, a 1.85-billion-year-old volcanic caldera collapsed and later became one of the world's richest iron ore deposits.
• 09 July 2026The 2.4-Billion-Year-Old Rust That Changed the PlanetIn Western Australia's Hamersley Range, 2.4-billion-year-old banded iron formations preserve the moment when photosynthetic bacteria filled the oceans with oxygen, rusting trillions of tonnes of iron
• 08 July 2026The 1.6-Billion-Year-Old Volcano That Became a Mountain of IronThe Middleback Ranges were built from 1.6-billion-year-old volcanic iron, folded by a continental collision, and mined for over a century.
• 27 June 2026The 2.6-Billion-Year-Old Seafloor That Still Holds the Sky's BlueprintHow 2.6-billion-year-old banded iron formations in Western Australia's Hamersley Range record the moment Earth's oceans learned to rust—and the atmosphere gained oxygen
• 25 June 2026The 2.7-Billion-Year-Old Ocean That Left a Scar of Banded Iron: Western Australia's Hamersley RangeHow 2.7-billion-year-old banded iron formations in Western Australia's Hamersley Range record the moment Earth's oceans first breathed oxygen—and why these rust-stained cliffs still hold the key to mo
• 18 June 2026The Salt That Built a Spine of Ironstone: Western Australia's Fortescue Marsh Banded IronHow 2.5-billion-year-old banded iron formations in Western Australia's Pilbara region, shaped by salt weathering over eons, created the Fortescue Marsh—a landscape where ironstone ridges trap ancient
• 18 June 2026The Beds That Caught the First Oxygen: Western Australia's Hamersley Banded IronHow 2.5-billion-year-old banded iron formations in Western Australia's Hamersley Range record the moment oxygen first flooded Earth's atmosphere, creating the world's largest iron province.
• 21 May 2026The Iron Bands That Recorded a Planet's Oxygen Crisis: Western Australia's Hamersley RangeHow 2.5-billion-year-old banded iron formations in Western Australia's Hamersley Range record the moment Earth's oceans rusted, precipitating the iron that built modern civilisation.
• 20 May 2026The Magma Chamber That Became a Mountain of Iron: South Australia's Iron KnobHow 1.6-billion-year-old volcanic activity in South Australia's Middleback Ranges created one of the world's richest iron ore deposits, where superheated fluids transformed ancient sediments into the
• 18 May 2026The Lake That Breathed Iron: Western Australia's Hamersley Banded Iron FormationsHow 2.5-billion-year-old iron-rich layers in Western Australia's Hamersley Range record Earth's first great oxygenation event, laid down by ancient microbes in a sea without life.
• 12 May 2026The Iron That Fell: The Wolfe Creek Meteorite CraterIn Western Australia's Kimberley region, a 50-metre iron meteorite struck the desert around 120,000 years ago, leaving a 880-metre crater that remains one of Earth's best-preserved impact sites.