The striations looked like slick-n-slide but im not sure

‼️SAVE EARTH SCIENCES AT THE VU AMSTERDAM UNIVERSITY ‼️

As you may have heard, the VU has made the 'preliminary plan' to close the Earth Sciences department, as well as the BSc Earth Sciences. The Geology & Geochemistry cluster from the MSc Earth Sciences will also be closed. Some forty staff members will be dismissed, resulting in a loss of expertise, in the Netherlands that cannot simply be rebuilt. There is a lack of vision and substantiation, with a great deal of disbelief among students and staff of the department. This is still a preliminary plan, so we need to take action now!

It is not clear to students how they can obtain their diploma. There is talk of 'personal study paths' and taking courses in Utrecht, but there are no concrete plans for this yet.

Without Earth Sciences, expertise on climate change, natural resources and the energy transition will disappear. Who will understand and protect our planet in the future?

The Faculty Board and Executive Board say that there is no other option. But there is an alternative plan, drawn up by the department's employees, which was submitted to the boards with the support of the ODC (codetermination/medezeggenschap). However, nothing was done with this for no apparent reason.

We ask you to show your support by signing this petition to make it clear to the VU that Earth Sciences cannot be cut and that there are alternative options to dissolve the deficit. Please send this petition to everyone you know, because more signatures mean a clearer message to the VU!

‼️SAVE EARTH SCIENCES‼️

I am a geology hobbyist. These pictures show several prominent rock layers along Colorado's Front Range in and near Eldorado Canyon State Park just south of Boulder. I hope you enjoy them. Please feel free to clarify anything you see or point out any errors I include. The numbers below correspond to the picture order. At the end of the pictures I have included three maps to show the area: the first one comes from CalTopo and shows red dots marking the location of some of the pictures, the second is a Google Map centered on Eldorado Springs, the third is a geology map from Rockd.

1. This image is looking southwest from the plains towards the mountain front. The Dakota hogback (145-100 million year old sandstone & shale) is the flat ridge just above the trees in the middle ground. The towering peaks in the background consist of the Fountain Formation (315-273 million year old conglomerate, sandstone & shale). This is the same formation of which Denver's famous Red Rocks concert venue is composed.

2. The trail cuts through the Dakota hogback. This layer once covered all of Colorado. It was eroded away after the mountains pushed up underneath it during the Laramide Orogeny (roughly 60 million years ago). This rock layer dives deep underneath the plains to the east where it traps important hydrocarbon reserves.

3. Sandstone and shale layers in the Dakota Formation with my daughter next to it for scale.

4. Because the mountains tilted the layer off its original horizontal orientation, the western side of the Dakota hogback is like examining a sliced onion. So many layers representing so many years of sand and mud deposition along the Western Interior Seaway.

5. A final look at the Dakota hogback. This shows a layer of sandstone still displaying the ripples in the sand created by the water currents flowing over it all those years ago.

6. After crossing the Dakota hogback, the trail affords a nice view to the northwest showing the entrance to Eldorado Canyon. These rock layers have also been tilted up in the same orientation as the Dakota hogback, but this layer is much older. This is the Fountain Formation, a beautiful red sandstone that can be found all along Colorado's Front Range mountain front.

7. A closer look at the rock layers of the Fountain Formation. Just like the Dakota Formation, this rock used to extend across Colorado before the mountains rose under it and almost all of it eroded away. It still dives deep under the plains to the east, below the Dakota Formation.

8. A close-up of Fountain Formation sandstone with my foot for scale.

9. Looking east out of the canyon to the plains. This rock is all Fountain Formation, very popular with rock climbers.

10. Here, the western edge of the Fountain Formation angles out of the ground on the right side of the image. This 300 million year old rock is young compared to the 2.5 - 1.6 billion year old white quartzite ridge on the left side of the image. This rock is very hard and has lots of neat spires sticking out of it.

11. Another look at the quartzite ridge, this time along the southern side of the canyon.

12. Quartzite ridge again

13. A close-up of the quartzite with my dog Juneau for scale.

14. I tried to capture the shiny crystals in the quartzite with this picture, but they don't show up very well.

15. Map of our trail with red dots showing location of pictures.

16. Google map of the general area. Canyon is underneath Eldorado Springs at center.

17. Geologic map from Rockd. Green ridge is the Dakota hogback. Light blue is the Morrison Formation. Brown is the Fountain Formation. Reddish-pink is the quartzite. The light brown areas are colluvium, generally unconsolidated material deposited on slopes by gravity and sheetwash. This is pretty new stuff from the Holocene, about 11,000 years old.

I wanted to know the climates and biomes of Pangea because I'm from another community, r/Paleoart. Paleoart is a style of art that tries to discover through art what the prehistory of the earth was like. I want to know, for example, the upper desert is cold or icy. This is to have a good color palette in the arts (and that make sense)

Group Capir

In May I am graduating with my bachelors degree in geosciences. Iv been toning my resume and have applied to a few entry level positions but, nada.

With everything going on politically I’m afraid I won’t have as many opportunities. My city has already announced layoffs in Oil & Gas. My concentration is in petroleum but I’m well rounded in hydrology, GIS, basin analysis etc.

Any tips or words of encouragement would be greatly appreciated.

Hi I have my structural geology final in four days and was honestly having some difficulty finding past exams, does anyone have any recommendations or would like to share their past ones??

Also any tips would be appreciated!

What are the biggest challenges you face when deciding the optimal path to mine an ore body? Are these challenges primarily related to geological complexity, limited data, or technological constraints?

What types of data do you rely on most heavily to make decisions about ore body extraction paths? Are there specific data gaps or integration issues that delay your decision-making process?

Which pain points in ore body decision-making have the greatest impact on mine production efficiency and profitability? How do these issues affect grade control, waste management, or overall operational costs?

Context: I'm new to the field and wanting to learn more about what problems others face, and how impactful they are to the role.

Hi,

Could someone help me please with materials or a summary of geophysical methods and the geotechnical parameters that can be derived from them, along with formulas? I've been struggling to find information on this for a while, but all I come across in books are vague explanations, and the standards aren't very helpful either.

This photo was posted In r/weird. I see a lot of crinoid fossils but had never seen anything like this before.

https://www.reddit.com/r/Weird/s/DNfqVd2Wkp

My daughter has a home made slime company and goes to local entrepreneurs markets. Now my younger boys want to participate so we collected local (Eastern Missouri) geodes and broke them open for them to sell. Gonna give them a bath in iron out and clean them up a bit unless anyone has another suggestion.

Hello all, this is my first time posting on this forum so please forgive me for any formatting errors.

I am a Senior Geology student in the U.S., who is about to take the Geology ACAT. I have been having trouble finding any sort of study materials and am kind of worried I won't do well. If anyone has taken the test before and could possibly give me some pointers on what to expect/study materials, that would be awesome!

As the captain says is there a way to fix it? Also is there a way to buy an azimuth scale for this compass it’s in quadrants and that means I’m more likely to make a mistake and I much prefer azimuth.

Ps if you’re going to say: “don’t change it, it’s an antique” or “just do the conversions” don’t.

Today is Geologists Day, it is widely celebrated in Russia and other countries that were former part of the Soviet Union.

It is celebrated each year on the first Sunday of April.

Hi I have a question about surfer software.. is there a difference between slice for the grid and between creating a profile.. in the end it is supposed to give the same result right or you expect something else? Thank you in advance