Today's show begins deep in Earth's mantle. It's mostly a beautiful, green place ... but, apparently, also much like a marble cake? On todays show, Holly & Anthony are joined by the ultimate mantle legend Dr Isra Ezad, who's an igneous experimental petrologist at the University of Western Australia. Dr Ezad walks us through the dark side of Earth's mantle, the kind of experiments that let her simulate these exotic domains, and how metal behaves in these weird subterranean spaces.

We partnered with the ARC Critical Resources for the Future to make this fascinating episode of Wonder possible.

Find us at ⁠⁠www.thegeoco.com.au⁠⁠

Instagram ⁠⁠⁠⁠⁠⁠@thegeoco⁠⁠⁠⁠⁠

Got questions? Get in touch- [email protected]

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

WOW, we've spoken to some incredible scientists over the last few episodes. We think it's time to hit pause and absorb what we've learned? From the ceaseless cycles of Nature to the evolution of flora and fauna, from Holly's field travels into living landscapes and Anthony's curiosity about Gondwanan ice sheets— let's reflect on the spectacular stories of our recent guests and explore the earth science behind it all.

Here is the paper we quoted at the end of this episode, Bowman and Yeates (2006), and here a video of that earth mosaic/art installation metaphor we explored, too.

Find us at ⁠⁠⁠⁠⁠⁠⁠www.thegeoco.com.au⁠⁠⁠⁠⁠⁠⁠ and on Instagram ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@thegeoco

⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Got questions? Get in touch- ⁠[email protected]⁠

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

"A nation that loses its connection to its country either culturally, emotionally or scientifically loses. That is our biggest societal and human challenge... how we understand and connect with our planet. As Australians, we have responsibility for our bit of the earth. It's what sustains us as people and everything else we share our planet with..."
Here is part 2 of our conversation Dr Steve Hill on the ancient sculpture of Australian landscapes and our habitation of them today.

A big thank you to our proud sponsors over at the ⁠Geological Society of Australia⁠ who made this episode of Wonder possible.

Dr Steve Hill is Chief Scientist at Geoscience Australia, and he has a really cool instagram page ⁠@stevogeo⁠

Find us at ⁠⁠⁠⁠⁠⁠www.thegeoco.com.au⁠⁠⁠⁠⁠⁠
Instagram ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@thegeoco⁠⁠⁠⁠⁠⁠⁠⁠⁠
Got questions? Get in touch- [email protected]

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

Thumbnail image credit: Steve Hill himself!

In today's show we traverse iconic Australian landscapes and uncover their roots in deep time. Dr Steve Hill shows us how 'reading landscapes' reveals their formation - by fire, by ice, by water - thus allowing us to imagine the ancient sculpture of todays world. We find out that encoded in our landscapes today are ancient inland seas, Australia's slow drift across the face of the Earth, and its transformation into arid, fiery lands...

What an utterly joyous conversation— a big thank you to our proud sponsors Geological Society of Australia who made this episode of Wonder possible.

Dr Steve Hill is Chief Scientist at Geoscience Australia, and he has a really cool instagram page @stevogeo

Find us at ⁠⁠⁠⁠⁠www.thegeoco.com.au⁠⁠⁠⁠⁠

Instagram ⁠⁠⁠⁠⁠⁠⁠⁠⁠@thegeoco⁠⁠⁠⁠⁠⁠⁠⁠

Got questions? Get in touch- [email protected]

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

In our second episode with Dr Andrew Merdith, we ask why the rise of land plants pushes the pendulum swing of Earth’s climate (who knew moss was so cool? Or that if you're a plant, you can actually have too much of a good thing, *cough cough atmospheric combustion??!!!?* ). During these fascinating Phanerozoic moments in Earth evolution, Dr Merdith also shows us what the ancient landmasses were doing .... and to voyage there, we must introduce you to Gondwana.

Find us at ⁠⁠⁠⁠www.thegeoco.com.au⁠⁠⁠⁠

Instagram ⁠⁠⁠⁠⁠⁠⁠⁠@thegeoco⁠⁠⁠⁠⁠⁠⁠

Got questions? Get in touch- [email protected]

Thanks to the ⁠Institute for Sustainability, Energy and Resources, at the University of Adelaide, ⁠for making this episode of Wonder possible.

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

Thumbnail image credits: ⁠⁠⁠ Kiril Dobrev on ⁠Unsplash

How is our planet's surface — from the creation and disintegration of mountains, to the first breaths of flora — related to the geologic evolution of Earth's climate?

In this episode of Wonder, Holly Cooke and Dr Anthony Reid are joined by Dr Andrew Merdith from the University of Adelaide. We explore the evolution of land plants to the formation of opals in the Australian outback, and our conversation asks why Earth’s internal heat, tectonic movements, and carbon cycles drive dramatic shifts in climate and life throughout deep time.

Find us at ⁠⁠⁠www.thegeoco.com.au⁠⁠⁠

Instagram ⁠⁠⁠⁠⁠⁠⁠@thegeoco⁠⁠⁠⁠⁠⁠

Got questions? Get in touch- [email protected]

Thanks to the Institute for Sustainability, Energy and Resources, at the University of Adelaide, for making this episode of Wonder possible.

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

Thumbnail image credits: ⁠⁠⁠ Guillaume Briard on Unsplash

Hi and Welcome to Wonder, with the ARC Centre in Critical Resources for the Future! Today Holly & Anthony are in marvellous conversation with centre Director Professor Marco Fiorentini, who journeys with us through the grand Australian libraries of geological history and what they spell out for Australia's critical resource futures.

Find us at ⁠www.thegeoco.com.au⁠

Instagram ⁠⁠⁠⁠⁠@thegeoco⁠⁠⁠⁠

Got questions? Get in touch- [email protected]

Find the ARC Critical Resources for the Future ⁠here⁠.

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

Thumbnail image credits: ⁠⁠⁠ ⁠⁠Anissa Terry on Unsplash

It's been a huge few episodes for stories about our ever-changing Earth system, from living glaciers and volcanic eruptions to our human moments in a warming world. Holly & Anthony take this time to actually understand and reflect on recent conversations with geochemist-volcanologist Dr Lucy McGee and glaciologist Hedda Andersen, sprinkled with some ideas about the growth of Antarctica's ice sheets (see How Antarctica Got its Ice⁠ and Antarctic Ice Sheet variability Across the Eocene-Oligocene Boundary Climate Transition⁠), plus some climate change 101 thanks to the IPCC Sixth Assessment Report⁠ and ⁠Special Report on the Ocean and Cryosphere in a Changing Climate.

Find us on Instagram ⁠⁠⁠@thegeoco⁠⁠⁠

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

Thumbnail image credits: ⁠ ⁠NASA⁠ and Toby Elliot on Unsplash

On today's show: explosions, infernos, Mount Doom— oh my! From volcanic eruptions to the origins of lava, volcanologist and geochemist Dr Lucy McGee takes us around the world (and deep into its infernos) to chat about when Earth explodes.

Find us on Instagram ⁠⁠@thegeoco⁠⁠

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

Thank you to the Institute of Sustainability, Energy and Resources, The University of Adelaide, for sponsoring this episode of Wonder.

Thumbnail image credit: Ása Steinarsdóttir on Unsplash

"Sila can be perceived as the breath of the glaciers, the cold, crisp air that comes from them, and the sense of timelessness they represent... "

In todays show, Wonder Podcast crosses to the Arctic and talks to Norwegian glaciologist and expedition guide, Hedda Andersen, who adventures into the fastest warming frozen lands on the planet to research Earth's vanishing glaciers.

Trust us— this conversation is special. Find Hedda on Instagram ⁠@adventureglaciologist⁠

Find us on Instagram ⁠@thegeoco⁠

GeoCo connects to you from the traditional country of the Kaurna people of the Adelaide Plains, South Australia. We pay our respects to their Elders past, present, and emerging.

Thumbnail image credit: Svalbard,⁠ contains modified Copernicus Sentinel data (2022), processed by ESA