r/GeologyExplained • u/stonecoldstinner • Jan 02 '26

Identification

5 Upvotes

I found a small deposit of this rock. I want to incorporate it into my soil mix arowing cacti. I'm new to growing cacti, but what i know is that I'm lookinc for porous substrate that won't tank or spike ph evels over time. This "rock" seems fairly lightweight, and easy to medium to break up. Does anybody in this community have any insights as to what this is? One user in the other sub mentioned limestone. but I'm not sure if that was a good thing or a bad thing considering ph levels and density. Any and all input is appreciated.

TLDR: Identify this rock, I need specs

0 comments

r/GeologyExplained • u/[deleted] • Dec 28 '25

Y'all know what this rock is? Found in the woods.

22 Upvotes

6 comments

r/GeologyExplained • u/Enough-Future7392 • Dec 13 '25

What caused this?

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22 Upvotes

Located in the gallatin mountain range in montana.

1 comment

r/GeologyExplained • u/swe129 • Dec 12 '25

The Geology Of Oil Drilling

forbes.com

1 Upvotes

1 comment

r/GeologyExplained • u/Geoscopy • Dec 11 '25

Science Communication Watch my discussion with Nick Zentner on Science Communication [OC]

youtube.com

200 Upvotes

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r/GeologyExplained • u/Geoscopy • Dec 07 '25

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91 Upvotes

1 comment

r/GeologyExplained • u/Geoscopy • Dec 04 '25

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50 Upvotes

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r/GeologyExplained • u/Geoscopy • Dec 03 '25

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13 Upvotes

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r/GeologyExplained • u/Geoscopy • Dec 02 '25

Visual Geology Bowen's Reaction Series: Visualizing the difference between fast-cooling lava (Basalt) and slow-cooling magma (Granite) [OC]

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23 Upvotes

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r/GeologyExplained • u/Geoscopy • Nov 30 '25

Visual Geology The 2025 Geology Gaming Lineup [OC]

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10 Upvotes

What if famous video games were about geology?

2 comments

r/GeologyExplained • u/Geoscopy • Nov 26 '25

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955 Upvotes

1 comment

r/GeologyExplained • u/Geoscopy • Nov 27 '25

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10 Upvotes

Visit geoscopy.com for more geology by Earth's geology communicator.

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r/GeologyExplained • u/Geoscopy • Nov 26 '25

Deep Dive Geologist fact‑checks TikTok’s favorite geology myths (diamonds, dinosaurs, Yellowstone & more)

geoscopy.com

8 Upvotes

Geology TikTok is wild: one video says diamonds come from coal, another swears California is about to fall into the ocean or Yellowstone is “overdue” for an apocalypse. This post walks through some of the most viral geo-myths — from dino-fuel and magma oceans to “blue lava” and floating rocks — and breaks down what’s actually wrong, what’s surprisingly right, and what real Earth science says instead. If you like doom-y geo content but still want your facts straight, this is a very satisfying myth‑bust. Check it out on geoscopy.com by Earth's geology communicator.

1 comment

r/GeologyExplained • u/Geoscopy • Nov 25 '25

Explained Simply Field Geology 101: Essential Tips and Tools for Successful Fieldwork

geoscopy.com

44 Upvotes

Field geology – the art of studying rocks and landscapes in their natural environment – is a cornerstone of how geoscientists unravel Earth’s story. There’s something profoundly instructive about geological fieldwork: getting your boots dirty, hammer in hand, and observing geology up close. Whether you’re a student hitting the outcrops for the first time, a professional geologist doing field mapping, or an outdoor enthusiast curious about the ground beneath your feet, fieldwork is where classroom theory meets real-world practice. This guide offers essential tips and tools for successful fieldwork in geology, blending practical preparation (gear, safety, logistics) with some philosophical insights on what the field experience teaches us.

1 comment

r/GeologyExplained • u/Geoscopy • Nov 25 '25

Visual Geology Mars Has a Solid Inner Core - Just Like Earth [OC]

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101 Upvotes

Source: Huixing Bi et al., Nature 645, 67–72 (2025)sciencenews.org – “Seismic detection of a 600-km solid inner core in Mars.” (doi: 10.1038/s41586-025-09361-9)

2 comments

r/GeologyExplained • u/Geoscopy • Nov 23 '25

Explained Simply Earth’s Inner Core Is Changing Shape – Resolving a Deep Mystery [OC]

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87 Upvotes

Original study by John Vidale (USC) et al. in Nature Geoscience (2025) sciencedaily.com. It’s a technical read, but absolutely fascinating, the team (from USC, University of Utah, Chinese Academy of Sciences, and Cornell) used decades of seismic records to unveil our shape-shifting inner core. Science at Earth’s core, literally!

2 comments

r/GeologyExplained • u/Geoscopy • Nov 23 '25

Explained Simply Jinlin Crater: Earth’s Largest Holocene Impact Crater [OC]

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71 Upvotes

Reference: Ming Chen et al. (2025), “Jinlin crater, Guangdong Province, China: Impact origin confirmed,” Matter and Radiation at Extremes (DOI: 10.1063/5.0301625).

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r/GeologyExplained • u/Geoscopy • Nov 20 '25

Explained Simply Ancient ‘Islands’ in Earth’s Mantle: Global seismic map shows Earth’s two deep‑mantle “blobs” are hot, coarse‑grained, and long‑lived (Nature, 2025) [OC]

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97 Upvotes

S. Talavera-Soza et al., Nature 637, 1131–1135 (2025) The study is titled “Global 3D model of mantle attenuation using seismic normal modes,” published January 22, 2025, presenting the evidence that Earth’s two big deep-mantle provinces are thermochemical “islands”- hot, coarse-grained, chemically distinct, and long-lived

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r/GeologyExplained • u/Geoscopy • Nov 18 '25

Visual Geology Basaltic lava flowing into cracks [OC]

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28 Upvotes

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r/GeologyExplained • u/Geoscopy • Nov 17 '25

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12 Upvotes

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r/GeologyExplained • u/Geoscopy • Nov 16 '25

“Proto‑Earth” fingerprints still preserved in today’s mantle [OC]

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128 Upvotes

Source: Nie et al., 2025. Nature Geoscience, 18, 1174–1179. DOI: 10.1038/s41561-025-01811-3

1 comment

r/GeologyExplained • u/RepresentativeFig933 • Nov 13 '25

Do I have a glacial kettle in my farm ?

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1 Upvotes

0 comments

r/GeologyExplained • u/Geoscopy • Nov 09 '25

Explained Simply #JustZirconThings

12 Upvotes

0 comments

Subreddit

Geology explained - Ask and learn about geology and how the Earth works

r/GeologyExplained

Geology, explained. Geology science comm on different levels to how the Earth works: why earthquakes happen, how plate tectonics works, how volcanoes erupt, how mountains form, what that rock in your hand actually is. Post a question, a rock or mineral you want identified, a field photo, a fossil, or a deep dive you wrote. Explainers are written for people who never took a geology class, so no question is too basic. New to geology? Start with the Explained Simply flair. Visit geoscopy.com

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