Blog Post #8


 

 Blog Post #8: Volcanic Geological Feature

The feature I chose for this blog post is Bishop's peak. I hiked there in March with my grandparents, so I am going to use photos from that time. (I am unable to get new photos since I have been sick recently) Unfortunately, I do not have images of the mountain as a whole.
(Taken 3/16/2022 @ 10:46 AM in SLO)
(Taken 3/16/2022 @ 11:20 AM in SLO)
(Taken 3/16/2022 @ 11:21 AM in SLO)

(Taken 3/16/2022 @ 12:15  PM in SLO)

(Taken 3/16/2022 @ 12:20 PM in SLO)

Bishops peak is a volcanic plug. This means it was formed when magma hardened in a vent within an active volcano. Bishop's was formed around 20-25 million years ago. I have no idea what it would have looked like years and years ago when it was active but I would guess it may have had an appearance similar to that of other active volcanos. 

The outcrops I observed appeared to be similar to that of igneous intrusive rock. It has a fine grain without any chunks of other rock inside of it. It looks more like intrusive rather than extrusive because it lacks the same air pockets that are prevalent in extrusive rock.

It was a very fun hike, but challenging hike since so much of it is uphill and the time we chose to do it at had plenty of sun. 




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