Classifying igneous rocks | Describing composition and texture
ฝัง
- เผยแพร่เมื่อ 31 พ.ค. 2024
- 00:00 Introduction
00:54 Phaneritic (coarse-grained) texture
03:24 Pegmatitic texture
04:26 Aphanitic (fine-grained) texture
07:40 Porphyritic (bi-modal) texture
10:55 Glassy texture
12:58 Vesicular / porous texture
17:17 Fragmental / pyroclastic texture
19:07 Composition: Proportions of minerals
22:13 Classifying igneous rocks (how to give them a name!)
ABOUT ME:
👋 I’m Allison, a structural geologist and Earth Science educator in Northern California. I help college students and geology enthusiasts understand the processes that shape our planet. 🌎
💡Learn more about me at www.allisondeanjones.com
🎥For more videos like this one, subscribe: @allisondeanjones
MY TECH:
📷Camera: Canon M50
🎙️Microphone: Blue Yeti X
📀Software: Camtasia 2022
MY FIELD GEAR:
🥾Boots: Lowa Renegade
🎒Backpack: Osprey Sirrus 36 or 24
🧭Compass: Brunton northern hemisphere
#geology #earthscience #science #earth #rocks
Wonderful and very informative video. I have subscribed, thank you Allison.
You’re a natural teacher, this is excellent!
Thank you for the Wonderful video.
Thank you. You are one of the most articulate and informative instructors that I've encountered. I will continue to follow you. Keep up the good work.
Thank you, Robyn! That means so much to me! ☺
I love the explanation for the rocks! I really love that you elaborate on the important things! Thank you so much, I’ll be coming back to this video many times
Thanks Allison , it was really useful and one of the best explanations about rock classification I've ever seen. I'll be grateful if you put a like for the chart .
Just Wow🎉❤
Excellent, clear, concise and informative, thank you Allison.comment
👍👍👍👍👍 very good
Well explained which makes it so easy to understand. Also very easy to listen to. Thankyou.
Thanks, John!
fantastic...very clear video helps along with your knowledge
thank you, very useful and interesting!
Very good lecture Thank you!
Good presentation
❤❤
Thank you for your time doing this video for the people. I am learning on my own. Could you give me some keys to differentiate an amphibole from a pyroxene (horblende vs augite) . Thank you
Absolutely! The easiest way to distinguish the two is their cleavage. Amphiboles exhibit two cleavage planes at ~120 and ~60 degrees. Pyroxene exhibits two cleavage planes at ~90 degrees!
@@allisondeanjones Thank you for your answer. I'll search and check that out
15:31 But surely we can hear
😆I should have bounced the rock on the table!
Hi
I think it is harder when you start your career to know the difference between sand, clay, silt and rock.
Honestly you should make a video on it in the field.
Great idea, Isaac! I'm hoping to post some videos from the field in the future!
You lost me at English system, think you were looking for imperial system
Yep! Sorry, my mistake. :)
Igne in Sanskrit is called Agni, means Fire. That means rock from Fire (magma)
Ignis
@@Krewmio
I am talking about Proto IndoEuropean language root of the word.