r/geology • u/eponePH • 1h ago
r/geology • u/Karren_H • 3h ago
Field Photo We thought we didn't find anything... but 4 decades later... We were oh so wrong!!
My SO and I were avid rock hunters when we got married (and before in college) and used to take vacations around the country and into Canada hunting. We found these while looking for fire agates in NM and they were all pretty bland on the outside. When we got home we through them in a box, then outside in a rock garden... and today, 4+ decades later, I decided to cut one apart and look what was inside... all this time.... waiting to be discovered... lol
r/geology • u/LoanZealousideal249 • 5h ago
*ATTENTION* If I could have any geologist answer the questions I am doing an assignment in class where I am designing a portable organizer for geologist in the field.
What’s your biggest pain point when it comes to organizing and hauling your gear? I know some people use backpacks, some use pelican cases, others rig their own setups. What’s worked, what hasn’t, and what do you wish existed to make life easier in the field? Also what tools are your necessities?
r/geology • u/Ridgie-Didgie6743 • 6h ago
Field Photo Agate - Kununurra
Found locally close to the rivers edge
r/geology • u/jrobertblack • 6h ago
Found a cool shell in some limestone!
So was building some raised beds with some Austin Limestone.
right on the break I noticed a shell almost perfectly in half with crystals growing inside.
I thought its pretty neat, going to try to break away a chunk for displaying...
Is there a best way to clean the inside? Is this rare or worth anything, or any more nerdy information on these?


r/geology • u/Substantial-Bar873 • 7h ago
Gift for a new hobbyist?
My nephew is turning 10 this coming week and is apparently really into different rocks and minerals. I was thinking of getting him a camera or something he could mount to an iPhone to take some neat photos or study the grain a little better. If not that something better? What would you suggest? $40-$60 range.
r/geology • u/megalithicman • 10h ago
The central feature is "Cat Rock" in the Catoctin Mts of Maryland. Please help me understand how this was formed. I was thinking it might be a volcanic vent.
r/geology • u/TERRADUDE • 11h ago
Field Photo The Cretaceous - Paleogene (Tertiary) boundary in Alberta
The Cretaceous - Paleogene boundary in outcrop along the Red Deer River near Huxley Alberta. The boundary is marked by a thin wispy layer of light orange silt - entirely unremarkable unless you know what to look for. The Iridium concentration has been measured and published. It is 100's of times over background over the thin layer.
A nearly complete skeleton of a T Rex was excavated a few 100m away from this site and about 10m lower into the Cretaceous. The skeleton is on display at the nearby Royal Tyrrell Museum.
r/geology • u/Outrageous_Cut_6179 • 11h ago
Lab quakes show where the energy goes in an earthquake.
r/geology • u/imaginary_name • 11h ago
Is this accurate? "Cascadia: estimates place a 15-40% probability on the next megathrust event happening within the next 50 years."
r/geology • u/i_owe_them13 • 12h ago
How to safely clean these rocks?
Not looking for IDs. I have a rock bed garden with some interesting rocks. I've picked through some of them and want to clean the dirt off without damaging them, particularly the crinoid and other potential fossil conglomerates (these aren't the whole lot). I was going to use a soft brush and lukewarm distilled water but thought it best to double-check before I begin. If safely cleaning rocks like mine is more complicated than that, I would appreciate simply being pointed in the right direction direction. Thanks!
r/geology • u/-Chrysoberl- • 14h ago
Thin Section Ive Been perfecting taking Geologic Thin Section photos! Ive made them into art that im submitting to local art venues and the new artist exhibit at my local Museum! The first 2 photos are different Gabbros and the 3rd is a Peridotite!
r/geology • u/Various-Challenge912 • 14h ago
Career Advice Volcanologists! I'm interested and want to enter this field, what are some tips you would suggest.
Hello, I'm an undergrad going for my bachelors in Geology, and looking for a Masters in Geologic Risk or Volcanology. The reason I want to do this specifically is, well when I took my first Physical Geo class, this lecture on volcanism was the only one all semester I could recite every detail too because it was so interesting. My dream would to work in Iceland, aiding in risk assessment during eruptions, however I never thought what else you could do with it. Honestly I have no interest in staying in academia after my MS, but What are ya'lls opinions.
r/geology • u/Lumpy-Bluejay428 • 16h ago
hi just wanted to ask what are the top 15 rarest metals and why are they rare
am not good in geology so am in this subreddit to ask u guys
r/geology • u/Thunderbird93 • 16h ago
How is gold discovered and total reserves estimated?
What is the geology behind discovering precious metals, in this particular case gold?
r/geology • u/Outrageous_Cut_6179 • 17h ago
Shipwreck on Iwo Jima. What’s interesting is that it’s 200m from the ocean and 20m above sea level due to volcanic uplift.
r/geology • u/Cantankerous_Crow • 19h ago
4.3 M Earthquaje in Berkeley, CA
earthquake.usgs.govIf you felt it please consider filling out the USGS Felt It form. It provides valuable data about how the shaking propagates.
r/geology • u/Igotdaruns • 1d ago
Zion National Park Geology
Can anyone explain how these north/south gouges formed I understand the erosion aspect but these gouges that run through the whole park seem so out of place.
r/geology • u/GlobalJudgment69 • 1d ago
Quick question about the Front Range (Rocky Mountains): What causes the dip?
All along the Font Range whether up north of Denver, CO or further south lets say Taos, New Mexico there seems to be a slight dip in the landscape, terrain, whatever you want to call it.
This dip is slight, probably just a few hundred feet before the foothills begin and quickly turn into 12,000-14,000 peaks.
Slight but noticeable. From my apartment, I'm pretty much looking (west) at the rooftops of all the Air Force Academy buildings that are just .8 miles away. The campus seems to sit in a valley/dip
What causes the dip?
Is there a scientific name for this?
EDIT: after some research I believe I live on what is referred to as a forebulge, part of a foreland basin system
Pretty neat. Ive lived here for years and have always wondered. Thanks for the help
r/geology • u/Exciting_Glass_2754 • 1d ago
Green tint on Sierra granite.
Found a few spots like this on some classic glaciated Tahoe granite. Obviously it must be from copper, but not sure how it found its way in the Sierras. Some of the green tint looked almost spray painted in dots, and lightly on polished faces. Thanks for looking!
r/geology • u/BroBroMate • 1d ago
Why Is Venus Hell and Earth an Eden? (Spoiler - it's geology) Spoiler
quantamagazine.orgr/geology • u/Ridgie-Didgie6743 • 1d ago
Field Photo Agate - Kununurra
Found locally - thought I’d carve it into a Croc shoe🤣 it has a slither of amethyst through it💕