I was thinking about how when the meteor hit and killed the dinosaurs, people say it ejected a lot of material into space. Surely some of that material must have been biological right? And if it got ejected far enough and didn't rain down to earth, would it have eventually landed on the moon as the nearest gravitational pull? And because there would be nothing to break down the matter besides radiation, wouldn't it fossilize?

i’m considering which course to drop out of all three, i’m going to have a busy spring semester with jobs and such and i simply think i will be too busy to spread my focus on all three: petrolgy geochem sedimentolgy and strat.

i’m currently taking mineralogy if that helps to base this question. TIA

Check it out r/OklahomaRocks if you're a fan of Oklahoma geology. We are truly blessed to have a beautiful state full of a diverse range of geological features and regions. Come join us!

Looking for something also really good at explaining how to measure features using brunton compass too.

I just went through a series of interviews with a few smaller drilling companies that take soil samples and core sampling analysis.

I told them I was graduating with my geology degree, and the company owner told me...

"We outsource environmental consulting work. The actual drilling would not use your degree to the fullest potential. Most of the guys out in the field only have a high school diploma. I have one guy that decided to become a driller because he hated college, but this is tough work and not your typical college crowd. I don't know many drilling companies that do their own consulting anymore."

I'm really confused. I thought geotechnical drilling and working in mining/oil/gas requires bachelors if not a masters in geology/engineering.

I must be missing something.

So im an amateur paleontologist studying the Coleraine formation (Cenomanian), but im pretty lacking in book smarts, being almost completely learned through experience. So i want to start reading.

Any suggestions of books to start giving me a good start into geology/mineral EYE DEE (post maker flags it) and paleontology/fossils?

Much appreciated.

tldr; will slag become a legitimate subclass

For ex., what would happen if I put fossils from one continent or "age" into cooling lava on another continent?

I found a smiley made from ore mineral and amphibole in a plagioclase while doing a microscope today.

I want to know how France formed during geological eras. However, I don't know the language to read French sources. Resources in my own language are insufficient. For example, did the Massif Central in France form through the Hercynian Orogeny? Or did it undergo metamorphism during that time? I have many more questions like this. Can you help me find sources on the subject? Or can you briefly explain the geological processes of France?

While practicing crystal symmetry I’ve noticed that my 3D thinking is not very good. Are there any websites or apps that allow me to see the different types of symmetry lines on 3D crystals?

A few hydrothermal veins visible in the sandstone?

I have a mineral test on Tuesday. There are approximately 100 minerals, but we will only be asked about around 36, still have to know all of them. Some formulas and some classifications.

Any advice or study tips. I typed everything up, had it recorded it being read by AI, not my favorite. I’m about to start writing lines like good old elementary school. Picture for those who are curious.

I'm interested in learning about the different eons/eras/periods/epochs and what the Earth was like at each stage, aimed at a non-specialist. I'm not sure if this is strictly geology or ' Earth science', so if this is the wrong subreddit I'm sorry.

So while I was studying for my geology exam I read that trenches are formed near continents, and that continental-oceanic convergent boundaries form trenches (which explains why trenches are near continents) however, in the exam, I was asked to mention geological features that happen at oceanic-oceanic convergent boundaries, and I only mentioned volcanic arc islands. But I lost marks for not mentioning trenches. Am I missing something?

Hi everyone! Looking for some advice here. I graduated college in 2022 with a B.A. in anthropology and a minor in geology. I realized far too late in my college career that geology was my true calling, and unfortunately at the time I couldn't afford to stay any longer to finish out a double major. I've recently been doing some soul-searching and it's time for me to continue my geo-education...but I have a conundrum. Because I only have a minor in geology, I have no real research experience, other than a paper recreating Ordovician paleoenvironments based on fossils I had collected. I've been in discussion with faculty at a few universities and I understand this would be a major hindrance for being accepted into a M.S. position. Should I go back and complete my last undergrad credits (likely 1-2 extra years), or shpuld I continue on with applying to grad schools. Has anyone been in this position before? any advice?

photo taken in aruba. there's this straight with line going across the rocks, and has been there forever

I found this on Garrapata beach (California, US) and I'm curious to know what caused this. It looks crustacean-created.

Please submit your ID requests as top-level comments in this post. Any ID requests that are submitted as standalone posts to r/geology will be removed.

To help with your ID post, please provide;

1. Multiple, sharp, in-focus images taken ideally in daylight.
2. Add in a scale to the images (a household item of known size, e.g., a ruler)
3. Provide a location (be as specific as possible) so we can consult local geological maps if necessary.
4. Provide any additional useful information (was it a loose boulder or pulled from an exposure, hardness and streak test results for minerals)

You may also want to post your samples to r/whatsthisrock or r/fossilID for identification.

My Nephew (7 Years Old) is really into rocks and crystals.

I want to help nuture this interest and get him some additions for his collection. I don't know much on geology so I'm hoping for some pointer on some visually interesting rock/minerals I could get him that aren't going to be too fragile of dangerous for a budding geologist. Given his age the more sparkly the better :D

He currently has some Amethyst and Quartz and a few polished stones from those National Geographic kits.

I was thinking of maybe some Bizmuth Crystals and Pyrite? Any suggestions?