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A place to learn about geology for teachers, students, rock hounds, and geology enthusiasts - that comes out on Fridays!Gary Lewis is an Australian-born geologist who loves to share his passion for all things 'geology'. In the GEO podcast, Gary takes you on a journey to learn about rocks, minerals, earthquakes, volcanoes, glaciers and so much more. It does not matter if you have no experience in geology, Gary will help you to understand the fundamentals of our planet so you can have a greater understanding about when you see when visiting your backyard, your local creek, cliff or beyond. You can also join Gary as he runs Field Adventures (specialist travel experiences) to see parts of the world through the eyes of a passionate Earth scientist. Find out more at www.geoetc.com.

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Check latest episodes from GEO Podcast podcast

Microfossils

2025/02/07

You can find the GEO podcast on iTunes right here. You can also find GEO Podcast or all the major podcast capture platforms! (Go on...subscribe and do not miss the new episodes) In this episode, I talk about the major types of microfossils and how they are important for us to understand the environments in which rocks formed in the past. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Shale - and how we use it

2025/01/31

You can also find GEO Podcast or all the major podcast capture platforms! (Go on...subscribe and do not miss the new episodes) In this episode, I talk about shale, some major types, and how humans have used shale over time. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Sandstone - quartz, arkose and lithic

2025/01/24

You can find the GEO podcast on iTunes right here. You can also find GEO Podcast or all the major podcast capture platforms! (Go on...subscribe and do not miss the new episodes) In this episode, I talk about sandstone and what the sand grains can tell us about how far away from he source rock the material has traveled. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support what I do to help you... Support the show

Apparent Polar Wandering & Plate Tectonics

2025/01/17

You can also find GEO Podcast or all the major podcast capture platforms! (Go on...subscribe and do not miss the new episodes) In this episode, I explain what apparent polar wandering curves are and how the information was then used to work out the position of the continents over time. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Seeing Inside the Earth

2024/09/30

In this episode, I explain how seismic waves are used to see the internal structure of the Earth including the crust, mantle, outer core, and inner core. You can also find GEO Podcast or all the major podcast capture platforms! (Go on...subscribe and do not miss the new episodes) Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Don't miss a thing! Join our email list. Support the show

Tectonic Plates - Lithosphere, Moho, Asthenosphere

2024/09/11

In this episode, I talk about the structure of a tectonic plate and introduce the terms crust, mantle, lithosphere, moho discontinuity, and asthenosphere. You can find the GEO podcast on iTunes right here. You can also find GEO Podcast or all the major podcast capture platforms! (Go on...subscribe and do not miss the new episodes) Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Three reasons why civilizations grew up around volcanoes

2024/03/29

In this episode, I talk about the three reasons why people and civilizations grew up around active volcanoes. Why did people need to live close to the dangers of eruptions? What was it that drove and kept them there? Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Salt Weathering

2024/03/21

In this episode, I talk about how salt acts as a physical weathering agent to break down rocks. Physical weathering is the breaking down of rocks without a chemical change, and salt can act as the agent that breaks down rocks especially close to the ocean, but also in salt-rich soils, etc. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Current Iceland Volcanic Activity 101

2024/01/19

In this episode, I explain in simple terms what is happening in Iceland these last few years on the plate boundary. I explain the two geological phenomena in Iceland, the recent eruptions and earthquake activity, and how they are related to Plate Tectonics. Support the show

Fake & Pseudo Fossils

2023/12/22

In this episode, I talk about fake fossils and why people create them, as well as pseudo fossils such as dendrites. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Come and check out all we have to offer at GEOetc.com Support the show

Where does magma come from?

2023/12/16

In this episode, I talk about how molten rock is formed inside the Earth - what are the mechanisms that cause our planet to produce molten rock to feed volcanoes? Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show Support the show

All about limestone

2023/06/30

In this episode, I talk about the different forms of limestone and how they form including chalk, coquina, fossiliferous limestone, travertine, and oolitic limestone. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Bowens Reaction Series

2023/06/23

In this episode I talk about Bowen's Reaction Series - and how it tells us the order of crystallization of minerals from molten rock. Support the show

Earth's Major Systems

2023/06/16

The Earth is a huge system made up of a number of 'spheres' - the geosphere, hydrosphere, cryosphere, atmosphere, and biosphere. What are each of these spheres and how can they interact? This episode explains each sphere and gives examples of the interaction between them. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show

Buying a rock (geologic) hammer

2023/06/09

In this episode, I talk about the things to consider when buying a geologic hammer - what to look for and the decisions you will need to make. You can find this information and more in my blog post about buying a forever hammer. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show