29) Extrusive Igneous Rocks
Вставка
- Опубліковано 19 лип 2015
- Magma erupting onto the surface as lava and/or pyroclastic fragments, solidify into extrusive igneous rocks. Here we learn to identify these extrusive information bombs.
- Наука та технологія
I'm a college student taking a geology class and I gotta say: your videos rock. I'm surprised more people haven't seen your videos. I'm getting really in geology so I'm subscribing!
I don't advertise much, so it mainly spreads through word of mouth. I may spend more time in advertising once I get past 100 episodes. Glad to hear you are finding these useful. Happy explorations.
Hello
Lol "Your videos rock"
You are my most admirable teacher. Thank you for your highly informative presentations.
Glad to see the confusion cleared up regarding diorite being phaneritic andesite. I was mixed up also. I really enjoy this lecture series
I was pleasantly surprised how many rocks you touched in this video
Excellent Video !!! Thank you !!
The rock's name in 3:38 might be a slip of the tongue, should be diorite instead of dolomite, right ?
At 3:39 did you mean to say diorite instead of dolomite? As I understand it, diorite is the phaneritic equivalent of the aphanitic andesite.
Oh crud. Yes, absolutely I meant to say diorite and don't know why I said dolomite which is the chemical sedimentary Ca, Mg carbonate. Thanks for catching this.
Christian Stride students of geology cares
I was about the write here. I frequently do the same mistake.
At 3:35
Haha my facial reaction after hearing this but nvm🙂
Your intro sounds like music from an old school rpg game
Puerto Rico is a volcanic island even if the volcano is extinct now. We have thermal waters and I got curious to why the thermal waters temperature when up when we had earthquakes that took me to start researching all about Volcanoes and to my amazing surprise my back yard is full of volcanic rocks! I have my own little research area. I'm really enjoying all the learning stages! The thermal waters getting hotter also got scientists here. We have a very large rock with glass fragments all over. Is beautiful. The rock is dark grey and kinda smooth. The rock is so big I can hide behind it.
Isn't the burnt shale near coal seams in North Dakota also called scoria sometimes? How would you tell someone to distinguish between this scoria from volcanic scoria? By the way I hope you don't take this comment as a criticism, because I really believe you have done an awe inspiring amount of work to produce this series of videos.
That is more generally called clinker, and only called scoria locally. Scoria is principally and commonly used for vesicular basalts.
Hi sir could you please tell me all type metamorphic rock how to identification one messages
Thanks. What Geology textbook do you use/recommend?
3:35 tongue slip😜
Is extrusive igneous rock used in tunneling??
Now iam geotechnical working for geologist please help me ne video
will a magnet stick to basalt
Not to most basalts, though all basalt retains a weak magnetic field. If the basalt were rich in olivine, it can convert to magnetite and thus make the rock magnetic.
@@CVshorey would it leave a mark on a non glazed ceramic tile or cut the tile? I have a rock and I haven't be able to find out what kind of rock it is
Given its broad application, everyone should understand GEOLOGY - therefore this video has been indexed and a link added by DR-KNOW / iq-2k Information Services - roughly 650 videos have indexed for this series
Continue