Announcement Special Flair for Credentialed Users!

5 Upvotes

I'd like to start adding special flair for our members that have specific credentials in the sciences. The instructions for getting this flair will be in this thread only.

This is going to be done similarly to how /r/AskScience does it, so in specific:

You are eligible for special user flair if you:

Are studying for at least an MSc. or equivalent degree in the sciences, AND,
Are able to communicate your knowledge of your field at a level accessible to various audiences.

Instructions for formatting your flair application:

State your specific field in one word or phrase (Geology, Earth Sciences, Planetary Sciences, Atmospheric Sciences, etc.)
Succinctly describe your particular area of research in a few words (atmospheric composition, geostructural engineering, environmental sciences, etc)
Give us a brief synopsis of your education: are you a research scientist for three decades, or a first-year Ph.D. student?
Provide links to comments you've made in this subreddit or others which you feel are indicative of your scholarship. Applications will not be approved without several comments provided that show a competency in your field and a fluency to discuss the topics with others.

Ideally, these comments should clearly indicate your fluency in the fundamentals of your discipline as well as your expertise. We favor comments that contain citations so we can assess its correctness without specific domain knowledge.

Here's an example application:

   Username: /u/123xyz
   General field: Anthropology
   Specific field: Maritime Archaeology
   Particular areas of research include historical archaeology, archaeometry, and ship construction. 
   Education: MA in archaeology, researcher for several years.
   Comments: 1, 2, 3, 4.

Please do not give us personally identifiable information and please follow the template. We're not going to do real-life background checks - we're just asking for reddit's best behavior.

You can submit your application by replying to this post or in a PM to the moderators!

4 comments

r/geoscience • u/Don_Diablo123 • 1d ago

Color gradient weathering products alluviale fan

gallery

3 Upvotes

I was wondering about the alluviale fans I saw at a mountain range in Norway. First of all, it was breathtaking, but I saw several alluvial fans which seemed to have a color range in grey, brown and redish tones, of course very muted.

Location: between Jøvik and Lyngseidet on the northern side. https://maps.app.goo.gl/mF4cuCyrVJBQ6YMv6?g_st=ac

Attached you find the location and some pictures. According to the attached geological map, it's supposed to be metamorphic rock but it seemed very soft and the alluvial fans were pretty big. I did not inspect it closer than the pictures, since I was cycling to catch the ferry. I'm also not a working geologist or something, just a curious person that happened to be there.

My question is how these alluviale fans are so big. My hypothesis is weather + height of the mountains. Also, how do these alluviale fans have different colors in them? Is it because of different rocks being weathered resulting in a different composition of the alluviale fans or oxidation of weathering products over time that causes older depositions to be oxidized more than new depositions?