John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.
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John Leeman Podcasts
Pastors Talk is a weekly conversation between Jonathan Leeman and Mark Dever about practical aspects of the Christian life and pastoral ministry.
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We address life's tough and humorous topics. Join the conversation on IG @opinenation. Hosted on Acast. See acast.com/privacy for more information.
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How is prison ministry done and how does it connect to the local church? Can you have a church inside of a prison? Jonathan Leeman interviews Jamey Norman and Sean DeMars.By 9Marks
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This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went! GEARS Workshop Fun Paper Friday Hejnol, Andreas, and Mark Q. Martindale. "The mouth, the anus, and the blastopore—open questions about questionable openings." Animal Evolution: Genomes, Fossils, and Trees (2009): 33-40. Contact us: Show Suppor…
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On the Africa Statement on the Prosperity Gospel and Word of Faith Theology (Ep. 306)
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28:17
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28:17Mark and Jonathan talk to John Musyimi about the release and the content of the Africa Statement on Prosperity Gospel and Word of Faith Theology.By 9Marks
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Mark and Jonathan talk to Issam about the state of Christianity in Lebanon.By 9Marks
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Episode 420 - "Tourist Destination" Kamchatka Earthquake
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46:03
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46:03This week we are back and discussing the recent large earthquake in Russia! Fun Paper Friday Is that viral video of a fault rupture form a security camera real? This paper checks it out. Kearse, Jesse, and Yoshihiro Kaneko. "Curved Fault Slip Captured by CCTV Video During the 2025 M w 7.7 Myanmar Earthquake." The Seismic Record 5.3 (2025): 281-288.…
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On Prioritizing the Church in Missions (Ep. 304)
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28:14Mark and Jonathan interview John Folmar and Scott Logsdon on their new Church-Centered Missions book Prioritizing the Church in Missions.By 9Marks
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On Pastors Loving Their Wives Well (Ep. 303)
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36:56Mark and Jonathan talk to Zach and Garrett on how they seek to love their wives well while pastoring their churches.By 9Marks
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On this episode of Pastors Talk, Jonathan asks Mark about his friendship with John MacArthur.By 9Marks
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Episode 419 - "Diamonds Everywhere" A States
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48:19
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48:19We're hitting the open road — geologically speaking. This episode kicks off our new state-by-state series covering the most fascinating, scenic, or just plain weird geologic stops in the U.S. We’re going alphabetically (because of course we are), starting with Alabama, Alaska, and Arkansas. Some sites we've visited, others are firmly on our dream l…
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What makes a mineral a favorite? In this fun and down-to-earth episode, John and Shannon swap stories about the minerals they love most — and why. Along the way, they unpack cool crystal habits, formation environments, fieldwork memories, and the aesthetic appeal of minerals from museum specimens to muddy boots. Shannon shares her appreciation for:…
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We're back from summer break - Shannon taught field camp, John travelled for work and got hailed on, and more! John’s Hail Storm Fun Paper Friday How does modern AI stack up against a cognition test designed for humans? Dayan, Roy, Benjamin Uliel, and Gal Koplewitz. "Age against the machine—susceptibility of large language models to cognitive impai…
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On Selecting the Winners for the 300th Giveaway
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1:50Jonathan selects two winners for the 300th episode giveaway!By 9Marks
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In the last few decades France has become more secular. In this episode, Mark and Jonathan interview pastor Matthieu Giralt about the state of Christianity and his personal church experience.By 9Marks
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On Your Questions - Celebrating 300 Episodes
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44:50To celebrate the 300th episode milestone, Mark and Jonathan answer some of the questions that were submitted by the community.By 9Marks
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This week we talk about how we power our instruments in the field and all of the weird and wonderful ways they fail. Including getting turned into charcoal by lightning! Fun Paper Friday Why does ketchup splatter? Find out! Arstechnica Article Cuttle, Callum, and Christopher W. MacMinn. "Dynamics of compression-driven gas-liquid displacement in a c…
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On Growing Up in a "Christian" Colony (Ep. 299)
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33:41There are many "Christians"communities out there, but do they proclaim the biblical gospel? Mark and Jonathan talk to Josh Waldner who grew up in a Hutterites colony.By 9Marks
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Why did Alex duke write From Eden to Egypt? Mark and Jonathan interview Alex on the burden behind the book.By 9Marks
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Jonathan and Mark share how they structure their libraries and also discuss how much importance pastors should give to their libraries.By 9Marks
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This week we talk hail, Vesuvius, volcanic bombs, and vitrified brains. Scandone, Roberto, Lisetta Giacomelli, and Mauro Rosi. "Death, Survival and Damage during the 79 AD Eruption of Vesuvius which destroyed Pompeii and Herculaneum." J. Res. Didact. Geogr 2 (2019): 5-30. Fun Paper Friday An amazing new finding shows that brains were vitrified or t…
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On Ministering When Spiritually Dry (Ep. 296)
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30:44There are seasons in a pastor's life when they could feel spiritually dry. In this episode, Mark and Jonathan, alongside 2 friends, think practically about what to do in those seasons.By 9Marks
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Episode 414 - "Closed Because of Landslide"
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1:05:01Shannon's class took a trip to study catestrophic sedimentation... and they found it! John switched back to a Mac after 5 years. Join us for these and other exciting updates! Fun Paper Friday Find out how alcohol and an eye puffer machine cominbed with magnets can teach us about where our motor skills reside in the brain. Johansson, Fredrik, et al.…
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Jonathan talks to Samuel James about an article he wrote and together consider how maturity should look like inside of the church in light of the times we live in.By 9Marks
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On the Pastor's Personal Evangelism (Ep. 294)
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24:18Mark and Jonathan talk about the pastor's personal evangelism and consider how to carefully think about how we should relate to it. Related Resources: Evangelism by Mack Stiles How Do I Get Started in Evangelism? by Mack Stiles What If I'm Discouraged in My Evangelism? by Isaac Adams The Gospel and Personal Evangelism by Mark Dever…
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Turner Falls, Oklahoma A rare waterfall that grows outward due to travertine deposition instead of eroding backward. Formed by spring-fed Honey Creek flowing through Ordovician limestone, creating massive travertine deposits. Pe'ePe'e Falls, Hawai'i (Big Island) ~80 ft falls in downtown Hilo, part of the Wailuku River flowing between Mauna Kea and …
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Mark and Jonathan talk to the author of A Light on the Hill, which tells the history of a church 5 blocks from the US Capitol: Capitol Hill Baptist Church.By 9Marks
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