Tag

minerals

27 posts

• 10 May 2026The Copper Cauldron: The Porphyry Deposits of the Mount Isa InlierIn northwest Queensland, the Mount Isa Inlier holds one of the world's great copper and lead-zinc provinces, forged 1.65 billion years ago by hydrothermal fluids rising through fractured Proterozoic c
• 10 May 2026The Breathing Coast: The Coorong's Holocene LagoonSouth Australia's Coorong lagoon records 7,000 years of sea-level change, where shifting sand barriers and evaporite minerals preserve a living record of the Holocene.
• 09 May 2026The Magnetic Heart: The Iron Ore of the Hamersley RangeIn Western Australia's Hamersley Range, 2.5-billion-year-old banded iron formations hold half the world's iron ore, recording when bacteria first oxygenated Earth's oceans.
• 09 May 2026The Diamond Sands: The Zircon Grains of the Jack HillsIn Western Australia's Jack Hills, 4.4-billion-year-old zircon crystals—the oldest known terrestrial material—preserve a record of Earth's first continents and a cool, wet surface only 150 million yea
• 09 May 2026The Fossilised Lightning: The Fulgurites of Lake LefroyIn the salt pans of Lake Lefroy, lightning strikes fuse desert sand into glass tubes that record the electrifying power of the Australian sky.
• 09 May 2026The Fossilised River: The Paleochannels of the Gawler CratonBeneath the arid plains of South Australia, 40-million-year-old buried river channels preserve gold, uranium, and a record of a wetter continent.
• 09 May 2026The Opalised Beak: The Cretaceous Inland Sea of Lightning RidgeBeneath the opal fields of Lightning Ridge lies the fossilised bed of a vast Cretaceous inland sea, where the bones of plesiosaurs, dinosaurs, and monotremes were replaced by precious opal over 100 mi
• 09 May 2026The Glass Highway: The Silcrete Pavements of the Lake Eyre BasinAcross the Lake Eyre Basin, ancient silcrete crusts—fused quartz pebbles bound by silica—preserve a 40-million-year record of deep weathering and aridification.
• 08 May 2026The Gypsum Dunes: The White Sands of Lake EyreThe gypsum dunes of Lake Eyre, built from evaporite minerals over 30,000 years, reveal how Australia's driest landscape was once a vast inland sea shaped by Ice Age climates.
• 08 May 2026The Black Reef: The Proterozoic Manganese of Groote EylandtOn Groote Eylandt in the Gulf of Carpentaria, 1.5-billion-year-old manganese beds were concentrated into ores by Cretaceous seas, forming one of the world's richest manganese deposits.
• 08 May 2026The Fault-Valve Pulse: The Victorian GoldfieldsAn exploration of the tectonic forces and 'fault-valve' processes that created the world-class gold deposits of the Victorian Goldfields 400 million years ago.
• 08 May 2026The Mantle’s Elevator: The Merlin KimberlitesAn exploration of the Merlin Diamond Mine in the Northern Territory, where Devonian kimberlite pipes brought deep-mantle diamonds to the surface.
• 08 May 2026The Heavy Anchor: The Olympic Dam BrecciaAn exploration of the Olympic Dam deposit in South Australia, a 1.6-billion-year-old subterranean "supergiant" mineral system formed by catastrophic hydrothermal explosions.
• 08 May 2026The Scrapings of the Abyss: The Hodgkinson ProvinceAn exploration of the Hodgkinson Province in North Queensland, where Paleozoic subduction scraped the ocean floor into a chaotic, mineral-rich mountain range.
• 08 May 2026The Aerodynamic Glass: The Australite TektitesAn exploration of australites, the aerodynamic glass tektites formed by a massive meteorite impact 790,000 years ago and scattered across the Australian interior.
• 08 May 2026The Archean Anchor: The Yilgarn CratonAn exploration of the Yilgarn Craton in Western Australia, one of Earth's oldest crustal blocks, preserving Archean greenstone belts and immense mineral wealth.
• 08 May 2026The Frozen Bubble: The Mole Granite of New EnglandAn exploration of the Mole Granite in New South Wales, a massive 245-million-year-old subterranean magma chamber now exposed as a rugged, mineral-rich plateau.
• 08 May 2026The Invisible Suture: The Tanami EventAn exploration of the 1.8-billion-year-old Tanami Event, the tectonic collision that welded the Australian cratons together and created its remote gold deposits.
• 08 May 2026The Copper Spine: The West Coast Range of TasmaniaAn exploration of the Cambrian volcanic and sedimentary history of Tasmania's West Coast Range and its rich mineral heritage.
• 08 May 2026The Metallic Marrow: The Mount Isa InlierExploration of the Mount Isa Inlier in Queensland, where 1.6-billion-year-old tectonic collisions created one of the world's richest deposits of lead, zinc, and copper.
• 08 May 2026The Rust of the Plateau: The Sydney Basin SandstonesAn exploration of the Blue Mountains' Triassic sandstone and the chemical iron-banding that shapes its iconic vertical cliffs.
• 08 May 2026The Dark Floor: The Bulldog Shale of the EromangaAn exploration of the Bulldog Shale, the dark Cretaceous mudstone that preserves the frozen marine world of Australia's ancient inland sea.
• 08 May 2026The Iron Breath: The Hamersley Banded FormationsAn exploration of the Hamersley Banded Iron Formations and the biological revolution that turned the ancient oceans into iron.
• 08 May 2026The Glass Menagerie: The Opalized Fossils of the EromangaAn exploration of the rare geological process in the Eromanga Basin that transforms Cretaceous fossils into precious opal.
• 08 May 2026The Stone Fortress: The Kimberley PlateauAn exploration of the Kimberley Plateau’s ancient sandstone architecture, Devonian reef systems, and the deep mantle pipes of the Argyle diamond mine.
• 08 May 2026The First Witnesses: The Zircons of Jack HillsThe Jack Hills zircons of Western Australia are the oldest known materials on Earth, revealing a surprisingly cool and watery planet just 150 million years after its birth.
• 08 May 2026The Great Rusting of the Hamersley RangeThe Banded Iron Formations of the Pilbara represent a global chemical transition, where ancient microbial life turned the oceans into a planet-scale rust deposit.