Metamorphic Petrology- Types of Metamorphism, Protoliths, Textures, & Classification | GEO GIRL

You ever want a crash course on metamorphic petrology? This video is for you! We go over what metamorphism is, metamorphic environments and types of metamorphism (regional metamorphism, contact metamorphism, burial metamorphism, hydrothermal metamorphism, impact metamorphism, & dynamic metamorphism), the 3 main goals of metamorphic petrology (determining protoliths, conditions of metamorphism and structural deformation history of the rock), examples of common metamorphic rocks and their protoliths (marble, quartzite, gneiss, slate, schist, eclogite, greenschist, & anthracite coal), primary and secondary textures (primary textures like igneous and sedimentary textures that are save through metamorphism, and secondary textures that are caused during static or tectonic metamorphism) and the information we can gain from these metamorphic textures, the difference between linear and planar features in metamorphic rocks like lineations, foliations, and schistosity, and lastly, we cover both the structural and compositional classification of metamorphic rocks, and I give you my tips and tricks for identifying metamorphic rocks in metamorphic petrology lab based on my experience. ;)
References: Essentials of Igneous Petrology by Ronald and Carol Frost: amzn.to/37Zs9AL
GEO GIRL Website: www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, and donate to support the channel if you'd like!)
0:00 what is metamorphism?
2:46 types of metamorphism
5:56 why study metamorphic petrology?
7:26 determining protoliths of metamorphic rocks
12:04 primary vs secondary textures
13:28 sedimentary & igneous primary textures
16:17 static vs tectonic metamorphic textures
18:41 lineation vs foliation vs schistosity
20:01 metamorphic classification by structure
22:28 metamorphic classification by composition
25:57 upcoming videos & references
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Disclaimer: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission, but there is no additional charge to you! Thank you for supporting my channel so I can continue to provide you with free content each week! And as always, let me know your topic suggestions in the comments down below!

[@GEOGIRL]

Hey everyone! Sorry I am a bit behind, so I haven't added chapters for this video yet, but I promise, I will do that today ;) Thanks for all your support!

[@brucejackson3940]

I had Carol Frost as a professor at Uwyo, great teacher! Also, thanks and great summary today.

[@GEOGIRL]

Oh my gosh! That's so cool! I always think it is so cool to know the authors of publications like this, it makes reading the text more fun and interesting haha. Thanks for your comment & support! ;)

[@mahameboubekrine1276]

I have learned a great deal about geology from your KZbin channel that I have never encountered in my science courses at university

[@sneha9317]

Thank you. Love your videos. They are simple and easy to understand 😊

[@GEOGIRL]

Thanks so much for the support and kind words! I am so glad you find my videos helpful ;)

[@marilynjubileerose]

Thank you so much doctor! You inspire me to work hard to get pass my required physics and statics courses to get through the rest of my geological engineering degree! I can’t wait to learn more! I had my first petrology course this semester so this was helpful review for the final as well, you explain it all so clearly! A future video (when you have time) on metamorphic facies and their associated tectonic environments would be awesome! 💗

[@JoesFirewoodVideos]

I like these types of videos doctor, thanks for the Wednesday video. I ❤️GEO GIRL

[@GEOGIRL]

Thanks Joe! I am so glad you like them, I am planning on tying to continue the Wednesday videos all through February, but after that, we will see haha. ;)

[@Kashi_Tales]

Thank you geogirl❤

[@usamadanish8804]

Keep Continues metamorphic petrology till high level study then it will be effective. Means till the mineralogy, grade, facies and more and more...

[@GEOGIRL]

Haha, I will give it my best, but I am not a metamorphic petrologist by any means, so I may not be able to cover those topics as well as others ;)

[@usamadanish8804]

@@GEOGIRL thanks, and what about contact number??

[@samakshgupta8750]

Waiting for this video. Very nicely explained, thank you so much🙏🙏

[@GEOGIRL]

So glad you liked it, let me know other metamorphic petrology topics you want me to cover ;)

[@samakshgupta8750]

@@GEOGIRL thermodynamics of metamorphic reactions and the processes of recrystallization and grain rotation during metamorphism

[@GEOGIRL]

@@samakshgupta8750 Wow, thank you SO much for this! It is so much easier for me to do topics that are very specific, so I will try to make these videos soon :) (Although, no promises because whether I can make these videos depends on whether I understand the concepts myself hahaha, so I will start reading about them and hopefully I'll eventually understand it well enough to teach ;)

[@samakshgupta8750]

@@GEOGIRL thank you so much your videos are really very helpful and very easy to understand

[@marigoldastar1]

You are blessing to me, thank you .

[@GEOGIRL]

Hahaha, well I am glad I could help you out, you are very welcome! ;)

[@HappyKaci]

Appreciate all the information 💓

[@sushil1484]

Congrats for gaining 4.5k subscribers

[@GEOGIRL]

Aw, thank you so much! You are so sweet for saying that!

[@sushil1484]

@@GEOGIRL I am also hot .... Haha jk there are lots of stufents following you from here nepal.😁

[@GEOGIRL]

@@sushil1484 Hahaha, well I am glad that you all enjoy my videos (or at least learn from them ;))

[@JasonKale]

@18:39 I wonder why the angle is around 120 degrees? Reminds me of Inca walls at Machu Picchu.

[@trilochankumar8533]

Thank u so much for this lecture mam...

[@GEOGIRL]

Of course, so glad you liked it ;)

[@theatricult]

thank you for the videos

[@GEOGIRL]

Of course, so glad you find them helpful ;D

[@princeshukla7661]

I am waiting for your video or presentation

[@GEOGIRL]

What a loyal fan you are, thank you!!

[@asmagufran5301]

As always you make these topic super easy to understand..thank you

[@GEOGIRL]

Of course, I am so glad you find my videos helpful :D

[@trilochankumar8533]

Mam please continue video on metamorphic, like facies, metamorphic reaction, paired metamorphic belt,thermal and regional metamorphic of carbonate and pelitic rocks, metamorphic grid, thermodynamics metamorphic reactions,

[@GEOGIRL]

Wow, this is such a great topic list, thank you for the suggestions! And thank you for making them specific, that really helps. I will get working on these, but just a heads up it may take a while for them to come out because I am not that well versed in metamorphic petrology just yet and will need to do a lot of reading myself ;)

[@MrGoblin60]

You may be GeoGirl but you're my GoToGirl for geology. I wish I'd watched this episode before I wasted a ton of time at someone else's channel.

[@mastert.v6979]

Listening from pakistan 🇵🇰 ❤️

[@princeshukla7661]

Hello metamorphic girl 😄😄

[@GEOGIRL]

Yes! Love that haha

[@Nikhil-ho9jh]

Thanks

[@mountainclimbr]

Granulite was one of the samples for my last lab test ☹

[@mohamedalgueshy3220]

Thanks doc for your effort 💙💙✨ I want to ask you a question ⁉️ If we increase grade of temperature and pressure on schist it will turn to gneiss or not, or gneiss only com from metamorphosing of granite, and slate or schist come from shale only.

[@GEOGIRL]

So to my understanding, gneiss can form in various ways. One way is the metamorphism of granite, another is the metamorphism of schist. I think the schist would just make a more mica rich gneiss and granite would make variable compositions of gneiss depending on the original granitic composition. Hope that helps ;)

[@mohamedalgueshy3220]

@@GEOGIRL thanks 💙 I get it

[@hamzakhallaf1295]

tnx

[@princeshukla7661]

Again I am the first who's like & comment

[@GEOGIRL]

Always ;)

[@asmagufran5301]

Hi maam need your help...plz can you explain corona texture in metamorphic rocks and can you plz tell in brief on crystallization of magma in Diopside and Anorthite phase dia

[@GEOGIRL]

I will read about it and if I understand it well enough I will certainly make a video or more to help you ;) thanks for the suggestions!

[@asmagufran5301]

@@GEOGIRL thank you🤗

[@HoboMinerals]

You should do one on impact events! I would love to see some different examples of those, in hand specimens and thin sections.. plane and polarized lights.. There’s not enough information about them, and I’m so curious about them!! It’s got to be a whole other level of metamorphosis.. Right?

[@GEOGIRL]

Yes! It creates something called 'shock metamorphism' and it's so cool!

[@HoboMinerals]

@@GEOGIRL I’d love to see some examples of that!!! And listen to you talk about it!! Or any type of cosmic event, or rock..

[@GEOGIRL]

@@HoboMinerals Haha awesome! I will look into it, thanks for the suggestion ;D

[@samyjoseph4798]

Tengo prueba mañana aaaaaaaa dame fuerzas chica geo

[@RM-yw6xe]

Hey! Who else is looking forward to hunting for rocks in Spring!?

[@muhammadshahid8581]

How can i watch your vlog videos??

[@GEOGIRL]

Those are channel member videos, you can become a channel member if you press join below my video or on my channel page. It costs 2 dollars, 5 dollars, or 10 dollars a month depending on the tier you choose. If you do the 5 or 10 dollar tier you will have access to all my vlogs ;) (and I understand if you are tight on funds, so you can cancel your membership at any time).

[@muhammadshahid8581]

@@GEOGIRL sorry I have nothing to pay.......

[@GEOGIRL]

@@muhammadshahid8581 That is totally okay, no worries! :) Who knows, I may release more vlogs publically one day ;)

[@adamc1966]

I have a piece of mylonite from the San Andreas Fault zone.

[@RonJohn63]

meta- change in condition morphe - form

[@velikerimov9703]

GeoGirl hello, subtitre pleaseee

[@GEOGIRL]

Just added them! Sorry I forgot ;)

[@velikerimov9703]

@@GEOGIRL Pleaseee Turkish subtitre too