Identifying Igneous Rocks -- Earth Rocks!

[@mwilson14]

This is one of those KZbin videos I need to watch repeatedly to better understand the minerals I often misidentify.

[@arlenestanton9955]

It’s a lot to remember, and you have to practices,by go out a lot! Not just walking in the woods, but stopping to pick up rocks and trying to ID them.

[@Nothingimportant1]

After six years again a geology class, who knew it comes back to me. I loved rocks and minerals, but the college, prof we studies, led us to abhor it even. Now, understanding English and having access to KZbin, makes me interested again. Thank you for such a great video.

[@brento2890]

Excellent explanation. Best video I have seen on KZbin so far. I've only studied geology as a hobby (for about ten years). Although I have a degree in biochemistry, now I'm going to take a geology class at a local community college. Thank you! Keep putting inspirational videos online!!!

[@AbdulJalil-ry7qr]

Best explanation

[@nancypatino7739]

Excellent explanation. Your voice and the pictures are the perfect mix to learn

[@nunyabiznes4471]

This was excellent. I took a geology class in college, and I love rocks, minerals and fossils. I’m still confused on a lot of it, and this video certainly helped mitigate the confusion of where, how processes occur to result in which deposits. Thank you for an outstanding presentation without unnecessary words.

[@EarthRocks]

Glad it was helpful!

[@MooMooMath]

Great video. I can appreciate the research and work you guys put into this video.

[@bingluo7503]

The video is more better than some textbooks. It's helpful!

[@elathiaskade7311]

19:14 That is a quality visual arrangement, very logically organized. I really appreciate it. Production quality is pretty nice, like that well-done cut to show the floating Pumice chunk in a bucket.

[@bigboizism]

Skip classes, watch a 15 min KZbin video once a week, get a 90 in the course ah

[@shandevin5417]

pretty easy to do when taking these easy ass general ed classes. static engineering and calculus 3 on the other hand is more like go to class and come home and study 4 hours after every day to get a b or c

[@gregglira9947]

@@shandevin5417 Geology is not a general ed class, and the advance geology courses can get harder like math or any other science!

[@ianhubbard4954]

I only just became interested in rocks. I bought a few now that don't originally come from England. I just find interesting to wonder how many millions of years old it is and all the what ifs. Thanks for the video I'm hoping when I learn the basics the video will be a huge resource

[@anastaziuscyriacus5415]

this video helped me a lot with my Earth material UE exam, God bless you

[@Hartcore11]

This video is helps greatly in understanding what I'm seeing in my river trips in the mountains.

[@marcgradycole3523]

Thank you, for this and your tremendous series of videos/lessons. I only wished my geology professor's lessons were half as effective as yours. Your students are lucky to have such a talented professor like you.

[@kaeligrace]

Thank you for this! My geology class is so interesting but so fast paced that it’s hard to learn and appreciate anything before a new subject starts. This was explained in such a clear way and I feel much less stress about my upcoming tests!

[@EarthRocks]

Terrific! Thanks for sharing that. :)

[@prestongallimore]

I'm going to live in the woods so i need to learn this

[@joanofarkhuakau4154]

You still in the woods

[@FilhoDoFogoEterno]

i am from brazil, good luck. are you alive? lol kkkkkkkk

[@lindadechiazza2924]

I think you are planning to live in a rock quarry not, not among trees in a forest...please dress accordingly

[@colette8507]

Pretty Good Diet Granola BAR (no matter how bad a mnemonic you think it may be) is probably going to save me in my Geology prac exam for uni tomorrow. Thank you so much

[@alvaromorales6828]

Good explanatory , keep doing these practical videos.

[@jant232000]

THANK YOU!!! I have been so frustrated with my geology class. This will save my butt for midterms

[@theultimategamer384]

I have science test tomorrow 😥and this made me confident and ready for the test😌thnx :) 😘😘

[@dipendraadhikari3710]

Excellent explation and visualization...as i am the student of Geology from Tribhuvan University ( Nepal)

[@eliphillips2475]

best explanation of bowens reaction series better than my instructor

[@domotushi1483]

could you send me a link?

[@wouldhave4998]

Now i can play Dwarf Fortress with some nerdy background info!

[@qpuej]

best explanation so far!! greets from the world

[@StereoSpace]

Awesome explanatory video. Thank you.

[@Yooitsblake]

This woman helped so much. Great video and explanations. you deserve a million views.

[@allisonfu9503]

Pretty Good Diet Granola BAR, hope it will help me with the Geology lab test!!!!!

[@petertolibas648]

Thank you very much Earth Rocks, I'll come back if I ace my exam :D

[@emmanuelagustusmondilla6468]

Thank you!! I wish you're my teacher in Petrology.

[@EarthRocks]

Aw shucks. Thanks. :)

[@jeromejeitany3277]

Amazing !!! informative,blunt,logical!

[@haseo8244]

That's why mt st. Helen had a lot of ash high silica content while Hawaii is basically based on basalt.

[@terrisweet4632]

Wow, this is the best video ever! 🌟 🌟 🌟 🌟 🌟

[@ErrolMiller-ey3lb]

EXCELLENT PRESENTATION. INFORMATION CLEAR. THANKS.

[@kryztyn127]

Thanks! This helped on my granite/ diorite problem

[@radekgalabov9638]

This was SO helpful! Thank you!

[@reneespiricueta3543]

Great information. Easy to understand thank you for sharing this information

[@sarahr.6520]

I figured out a mnemonic you can use, i just invented from watching this video; 'Please Go Dumbledore, Go Back And Read' Hope it can help :)

[@sarielizard1]

god bless you!!! so much awesome!!!

[@lowcyzlota]

The best explanation ever!

[@nicolabrailsford8361]

This video was very helpful as iam trying to learn all about rocks& minerals

[@rhadicalmaindz]

Awesome work.

[@Saint.questions]

This is my class! :)

[@stephenfennell]

Could you do the same video again but with several seconds pause after each sentence to give us time to digest what you've just said? The talk is good but every sentence contains so many facts (all of them new to me) that I cannot absorb them before you're onto the next sentence and more facts. I need time to look at the picture and think what you've said, so the facts can crystallise in my brain, like magma cooling nice and slowly underground into large crystals. Thank you!

[@katrynwiese190]

Thanks for the feedback. Everyone processes information at different speeds, so thank goodness for video that you can pause and rewind!! That's the best I can do. I totally agree that it's great to look at the picture and think about what I've said. But my videos are designed to pack in a lot and depend on the pause and rewind button to accommodate time to think. It would be WAY too long a video otherwise. Still a great idea!!! :)

[@HoboMinerals]

So, how large is unusually large for the crystals to be?

[@sunilkumar-nj4zt]

Crystal clear .

[@007shubhs7]

very awesome your voice and your bowmen series

[@GeologiadaTerra]

such a great video! thanks!

[@AthensGreec]

Thank you so much for this video!! It was really helpful!

[@surajpatel3044]

Thank you so much ma'am for this ultra helpful video👏👏👏🙇🙇

[@salmanshai9150]

Excellent!

[@DineshSingh-hk3te]

Very good presentation

[@BeautifulVolcanoEruptions]

I need your help! I am watching the volcano in Iceland and I am seeing so very strange colored lava! The color runs thru the lava so is not a reflection. I have seen pink, blue, white, green, yellow, red, silver and PURPLE lava from this volcano. I very much would love to know what the compositions would be? I am not seeing these colors covered in your video. I read that this volcano is changing from Mafic to Tholeiitic flow from the Moho region of the mantle? I sure could use your expertise. I have been researching for weeks and no one knows the answer. I have photos I could share with you. Thank you so very much! I understand the yellow lava could be Hornblende? and maybe Feldspar Rhyolite for the pink? Maybe Titanium for the white lava? No matter what I cant find a single chart that talks about Purple, blue and silver lava!! Helllllp! Can a volcano go back and forth from being Mafic to Tholeiitic? If I understand your video the colors depend on the type of lava flow it is?

[@lindadechiazza2924]

Kimberly i am fascinated by Indonesia Ijen volcano witn blueish gas lava and as you know Aurora borealis different colors are maybe account of the various elements composition so you are on to something. . ..

[@rastkoglisic4358]

What would happen if during the magma 's cooling and travel, the starting minerals are not removed?

[@EarthRocks]

Then it would produce an ultramafic/mafic intrusive (peridotite/gabbro). Likely the minerals would all be zoned, with rims of a more evolved composition than the cores. For example, the plagioclase crystals would be zoned, with calcium-rich centers and more sodic rich as you move away from the cores.

[@abdirahmansaid6392]

We like how u decribe this lesson thanks

[@haseo8244]

Large crystals can be granite. Small crystals are basalt and rhyolite. But rhyolite are not the easiest to Id.

[@asifmehsud7018]

wow. Amazing explanation . i was never expecting that I will learn about igneous rock so easy as I do through this video.

[@angelic2234]

Brilliant, thank you!

[@pratyakshya.psahoo1611]

Thanks for this video..☺

[@jeffreyallen3796]

Thank you!!

[@kamaldeshmukh66]

really a good explanation..helped me alot in knowing some of the basic concepts of geology.

[@teneoaristocrata3270]

Very helpful. Than you so much!

[@hamedsafari8534]

Finally I understood 🎉

[@jaczad6329]

hi, just found a hard round greyish rock covered with somehow looks like rusted rock.I really want to know what this is, please comment if you know. thanks

[@EarthRocks]

I'm pretty good at rock ID, but usually at least with a picture! ;) The round nature of the rock just means it was eroded by rolling around in water (waves or river). Hard and grey could be a sedimentary rock, like mudstone, or a volcanic rock, like andesite. The rusty edge is probably just that, rusted out surface where chemical weathering has left rust deposits on the surface probably from reactions with iron in the rock. Attach a good picture, I can do a bit better!

[@pratibha2125]

Good best explained from everyone

[@mikestevens8012]

I like your precision's. 4000 ,new semi earth like planets found ( numbers vary ) . I like rare metiorites , I think we over looked the nature of 2-3% of metiorite samples . Fusion crusts , to compare an contrast , chondrules , " thumbprints" specific minerals and combos ...I need field tests and can you recommend , or make , a resource.?.

[@lindadechiazza2924]

Mike, Moissanite can you dig it?

[@nadiasourez8560]

Hi, thank you.well done

[@davidbrehmer2596]

I can't tell the difference between the aphanitic with crystals embedded in the matrix and the typical phaneritic specimens.

[@EarthRocks]

*Aphanitic with crystals embedded in a matrix = the porphyritic variety of aphanitic. The crystals you can see are called phenocrysts, and typically they will have perfect shapes/edges as they were carried by the erupting magma to the surface and then the lava solidified around them. *Phaneritic = 100% intergrown visible crystals. Typically the crystals will be similarly sized and intergrown. It can sometimes be hard to tell if there are a LOT of phenocrysts in your aphanitic rock (like a hearty stew). Looking through a handless or a thin section of the rock will help.

[@davidbrehmer2596]

@@EarthRocks Thanks. It's probably easier to tell in person.

[@joaoaox5485]

very good, thanks

[@ismaleali6076]

No words exdpres for some one updating my proffishional carrier.G.I.Ali

[@SkalaMustafa]

Very organized (Y) informtive

[@ckmo8542]

this is an amazing lecture, it;s so helpful for me!

[@haseo8244]

Another clue is if a rock is unusually heavy it have high metal contents.

[@mineralstones5161]

why you dont tall about daimonds ?

[@dominickrusso99]

Good job I like a couple bars 👍

[@jemalsd8877]

Thank you so much

[@thegodofwar3756]

Loved it really

[@mineralstones5161]

what about kimberlite

[@davidladu7159]

You are an iron lady! Thank you very much :)

[@jannalreybalondo7555]

I have aphanitic granite 12 to 15kls.

[@geoffgeoff143]

Simply define texture and composition.

[@michiganmitten1147]

Forgot about porphyry rocks

[@sophie20001]

great!

[@gshepherd6141]

Lava above ground, magma below ground.

[@roniidica8482]

Thanks...

[@nhlakaniphosikhosana6927]

Thank you! I benefited a lot from this video. I thank God for letting me find and watch this video,without Him I probably would not have found it and don't know what I would do. God bless this channel and the videos you make. May you carry on to help many through these videos and more initiatives that this organisation is involved in. May the Lord, Jesus help you and reveal Himself to you and may God, our Father, give you His Spirit; and may His Spirit lead you in His ways. Amen.

[@nandanajihhabibilafif4631]

Gracias

[@thebestofallworlds187]

why does water make the viscosity lower? 2:42?

[@EarthRocks]

In general, the viscosity of a liquid comes from how much the molecules in the liquid stick to each other. The more they try to bond (like they will fully when solid), the more viscous the liquid. In magmas, more than 50% of the molecules are SiO4(2+) -- silicon-oxygen tetrahedrons. And these like to stick to each other. The higher the % of Silica, the stickier they are. When water gets into the magma, the water molecules surround the silica tetrahedra (attracted to the charges) and interfere with its ability to stick to itself. So the liquid becomes less viscous. Same thing with syrup. Sugar molecules like to form weak bonds in the liquid (en route to full bonding when solid), and when you add water, you break some of those bonds. Make sense?

[@thebestofallworlds187]

Yeah, that is perfect. thank you for taking the time to describe this.

[@meilani-2163]

COOL!

[@ant5908]

Ty

[@fortheearth]

Wonderful video! Thanks for sharing.

[@FurryCombatWombat]

Who else is here cramming before Science Bowl?

[@edthoreum7625]

5:16 chart

[@JoseLuna-iu6jw]

I have a ultramafic rock dark green white black rock

[@haseo8244]

Hmmm remember that tuff can also be pumice.

[@KatrynWiese]

Tuff can contain pumice, but it can't "be" pumice.

[@pure4dsr817]

Who wants the Job to-put- it together

[@ananyabanerjee5814]

This is awsm

[@clairekarin9668]

godbless you madam

[@warriorwoman1719]

This is great. Thank you for posting!!!

[@melanie19524]

13:23

[@caskamohamed1510]

Well explanation same times I can say better lecture

[@abdourahamaneguisse7864]

fantastic