9. Stratigraphy

-
This picture is from June 4, 2025 and taken in Avila. These layers were exposed due to erosion from the weathering and from the human activity. They mostly look like the same kinds of rock and matieral but there's lots of lines in it which look like many were put on top of eachother in different layers. I think it must've taken thousands or millions of years to build up such a tall rock/cliff area.

Comments

Post a Comment

Popular posts from this blog

1. Cool Rock!

-
Image
Rock #1 My rock to scale with my hand. Location: My Backyard!!! Date: 6:20 p.m. on Sunday, April 6, 2025 This is my rock. I found it in my backyard today. The area has lots of small rocks, but the one I chose is different because it's bigger and there was a little blue mark on it that might be form paint or chalk. I think that it might've been formed somewhere else because all of the rest of the surrounding rocks were uniform, and this one wasn't.  A selfie of me with my rock!
Read more

3. Erosion!

-
Image
Erosion at the Sand Dunes!!!! All of the sand at the dunes are considered sediment and there's erostion because these sediments are being moved. This is a GIANT place (as you can see from the photo of me standing on the dune) in Pismo, CA. I think that there may have been even bigger erosion in the past but there still is erosion that takes place now from the gravity and the wind. These photos are from last weekend. I've also been there on super windy days where you can see sand flying all around and it moves like crazy. I think on normal days the sediment doesn't move very far and stays within the dunes just moving around from hill to hill and creating different dunes maybe. Movement of sediment can travel even further thoguh with people who visit the dunes getting sand in their clothes and shoes and leaving with it. I think that this erosion has been happening for as long as the dunes have existed because they're tall hills and so there will always be sand that ...
Read more