[Geography Lecture] G1/P4: Sea Floor Spreading Theory

Language: Hindi, Topics Covered:
1. Beginning of Sea-floor spreading theory
2. Mapping of Sea-floor in 1950s
3. 3 questions raised after sea-floor mapping
4. Henry Hass and Dietz - theory
5. Mid- oceanic ridge - Mechanism and distribution in the world oceans,
6. Trenches - distribution in the world oceans, Mechanism of trenches, the Mariana trench - deepest trench of the world
7. UPSC Prelim 2006 q. on trench
8. Concept of Palaeo-magnetism, geomagnetism, Vine and Mattheus
Faculty Name: Ms. Rajtanil Solanki
Powerpoint available at Mrunal.org/down...
Venue: Sardar Patel Institute of Public Administration (SPIPA), Ahmedabad
Exam-Utility: UPSC CSAT, CDS, CAPF

[@darshantawte7435]

After watching all these 57 lectures reading 11th NCERT was soo easy as all the concepts were crystal clear.

[@professorelixir3351]

Hey brother, along with these lectures which all NCERTS should we suppliment? I am going to read all 6-12th but specifically with this series?

[@darshantawte7435]

@@professorelixir3351 lectures which mam has made videos on, are of 11 NCERT (both) which actually has a high weightage in any civil service exam. Once you read NCERT books from 6-12 you will realise that with each subsequent standard same topics repeat.

[@professorelixir3351]

@@darshantawte7435 Yes, I've read only 6&7th as just started. Thanks for the info 🙏

[@rupasuhag8536]

I had never find a such kind of teacher who is very hardworking like you for other people 👏...thx a lot mam...u deserve 👑this ...

[@mahendragupta7725]

Mam ka lecture best hai, bahut hi achchhe se padhati hai (10/10) but ye ppt rula deti hai 😢😢 Kash ye ppt bhi achchhi tarah se dikhai deta to world me geography ka best lecture hota.

[@surabhilahoti8484]

Download the ppts from mrunal.org and open them along with the lecture.

[@sherhind2012]

Excellent teaching mam!! Your geography nd Mrunal sir's economics is best in India. Far better than other online education forums.

[@mohdamaan8258]

Ho gya clear ma'am

[@balaramreddy5828]

the best supplement to the ncerts -the inclusion of previous years questions made me stick to the lecture completely .thank you, mam!

[@Saurabh9637]

वाह मजा आ गया ......पहली बार ऐसा पढा़ई मैंने देखा 🙏🙏

[@jadhavmadhav]

this is great work.....sir Even no any geographer have don this kind of work. thank you sir it helps me as reference material in my day to day teaching.....

[@mohdamaan8258]

Ho gya clear sir

[@rajendrakumarrout3537]

Itne achhe padha rahi hai mam ki achha achha professor bhi kuchh nehi hai mam ke samne.......kya pata ye mam bhi phd kia ho......pata toh nehi mereko......jo bhi ho good abhi tak 2 lecture dekha hun baki dekhte hein......achha nehi lagega toh -ve comment bhi ayega......good job

[@procap1028]

That unbelievable teaching...hats off to you mam

[@nnaveen646]

One thing i want to point out in this Video lecture is about Magnetic field Influence of Earth which has been said in this lecture that it spreads till Solar winds which is not true. It just protects our earth from solar wind. It doesn allow the solar particles to enter into the earths Atmosphere.....i find these Lectures very much useful and she is explaining very clearly but little fast but i am okay with the speed....Thanks for uploading these videos Mrunal...

[@AyushRangi-t7m]

Very crystal clear teaching ,with a very deep insight made stick to the lecture I even forgot to have lunch .

[@himanshusharma9472]

These videos are still beneficial after 5 years thnku to all faculty..thnku

[@SukhRam2000]

बहुत ही शानदार लेक्चर, धन्यवाद ma'm (IRS ऑफिसर 😎😎☺😊)

[@geetanjalisingh9148]

Evergreen series 🎉

[@yYybbaa]

Old is Gold!

[@Zaki-cm1rt]

thanx a lot , concept are being cleared so nicely in so lucid language ..plz continue as it is

[@yamgaming7]

NCERT - CLASS 11 FUNDAMENTALS OF PHYSICAL GEOGRAPHY CHAPTER - 4 - DISTRIBUTION OF OCEAN AND CONTINENTS PAGE NO -32,33,34

[@priyankakumari-kd9om]

Great presentation....very well explained in lucid language. Thank you ma'am ❤️.

[@gulzarbhat2233]

Sister app ka geography ka source kay hay

[@ervivekchoubey]

Although the video was not much clear but that didn't hindered the understanding of the topic. Thank you very much 🙏🙏

[@airzahirakhan1143]

Thank you mam' for the superb content. Your all points are too good and too good 😅 Shukriya again'an again':,-)💞💞💞💞

[@gamingmadness89]

Very Informative and lucid... Keep it up :)

[@priyankadas1407]

ma'am the diagrams are very small...u can make it more visible and distinct for better understanding of students

[@Nishayadav-gq5ml]

@@suryanshchaudhary2882 only lecture he show ho rhe h mam ke pr ppt nhi hai sahe se bta do

[@shakirahmad7118]

Yeah absol

[@Negipooja9540]

@@suryanshchaudhary2882 mam k PDF open hi ni hote h sir phn p

[@suryanshchaudhary2882]

@@Nishayadav-gq5ml Mrunal.org par jaake download par click karna. Phir usske baad powerpoint for lecture wale option par jaake first wale link par click karna whan se aapko material mil jaayega.

[@Negipooja9540]

@@suryanshchaudhary2882 thnx sir

[@jayshelke5096]

धन्यवाद मॅडम और मृणाल सर.....जय महाराष्ट्र

[@kritika02.]

Completed 🎉🎉🎉🎉🎉

[@ananthagirikarthik9746]

so good video

[@RAJESH9763]

please provide english subtitles.People who dont know hindi will benefit alot . trust me they are more in number.

[@rajeevpadamuttam4245]

+Rajesh waran yesssss

[@ghosttree3773]

mrunal classes k lectures best hain

[@rajdoke]

NO WORDS TO SAY THANK U SIR

[@mohdamaan8258]

Bhai ho gya clear

[@vidyakendra4504]

God bless you ma'am 🙏🏻🙏🏻☺️

[@suryaprakashsuperhero9025]

GREAT MAM

[@artmania4956]

Great work mam... helped me a lot......

[@fundamentalsofphysicsnmath4306]

Fantastic, Really nice.🙏

[@lavpreetsingh2148]

Aap bhut ache ho acha pdhate ho voice is beautiful

[@PareshanMunda-up4ej]

WARNING TO ALL OF YOU GUYS: I am one of among you I have followed these videos for my Geography syllabus and after a year or so of studies when i am revising these notes i have come to realise that a lot of the informations given by her are not correct. Neuther factually nor conceptually so pleaseee dont entertain these vdos... I have made 100s of pages of notes only to realise i jave to do all of it again.

[@luxmangaur6507]

YOUR KNOWLEDGE AND THE WAY YOU DELIVER IT IS AUSPICIOUS,IN FACT YOU ARE FANTASTIC,WOULD BE MORE IF U DICTATE IT A LITTLE CLEAR ND SLOW ONLY IF YOU ARE USING BOTH LANGUAGES .....PLEASE.........

[@washingtonch9434]

Please read the description, powerpoint presentation is available to download the same that is used in teaching.

[@amsemity1792]

Where can we download the ppt

[@venky2144]

Very Thank full to your work sir & mam...

[@richsharma1967]

👍

[@akallblogger5505]

Very good teacher

[@SonuSingh-oz8ld]

thanx sir ..super 👌👍 apke viedo class se baut help milta h ..

[@krishnadham15]

Mam h bo

[@KuKstudypoint]

*Jai Hind Sir!* ✔️ *(18/11/2020)* *(**10:43**)am*

[@ritujakumari8325]

Great job ma'am...👍👍

[@saumya2844]

u r doing a great work mam

[@shivamagarwal5007]

its very good please upload videos on science & tecnology and culture

[@ravindravikram7578]

Tanks fr such a fantastic efforts to describing complex concept of geography in very lucid way.. thanks.............

[@Temporary-oq7hf]

Who is here after ias pcs pathshala?

[@arvindsinghrawat95]

thanx thanx lot of wishes for u mam god bless u with what u want

[@maheshmistri6590]

mam apaki video quality bahut low hai har video sunate hai hum...but map koi bhi dikhata ..please zooming map images...thank u

[@MG-yp7tb]

Hi, how can we download ppts??

[@archanakrishnan980]

mrunal.org this website has a download section where you ll get the ppts...!!

[@rohitkumar-nm6mj]

please send the ppt i cant open ppt downlode by this site so please if u have ppt than send on my whats up no 9693128046

[@RahulSharmaGAUTAM]

rohit kumar download k button ki bajay direct ppt ki icon pr click kr ho jayega

[@leno6461]

He dnt wann to he just wann archana's number

[@nandeeshkumaras3671]

This is soo interesting 😬😬

[@deepshankarjha5344]

ma'am your explanation was very good.but the only flaw I found is "the continental crust is heavier not the Oceanic crust".

[@NalinKhurb]

I think she said the Oceanic crust is denser!

[@vandanatamarji]

Bhai oceanic crust heavy because of basalt present in it not continental

[@yogeshchakor5560]

Excellent

[@Lbsnaa00]

Thanku so much ma'am ❤

[@sshray1115]

Awesome!

[@monikadahiya7518]

Plzz focus on presntation also , lec delivery is gud bt screen presntation vry poor , kaafi small nd diagram is also too small

[@Snehjaa]

nice lecture

[@kumarchandrajeet3355]

Thank you for all Intent and it's deed.. Guys, it really sad that despite of having such a nice stuff over this very less likes ,comments and subscribe ,please spread the wild fire ..

[@munishkumar1950]

best vedio mam

[@shubobade]

very well explained..!!

[@FreshersHelpDesk]

Thank you soo much mam 💕

[@abhinavpant9862]

Very good information mam, but if you could please increase the size of video so that we could see clearly in our cell phones

[@soumithnalli5169]

I'm in indebted to u maam

[@Jayantadas-yx7sc]

very nice explanation thnk u mam

[@mrvenaktesh]

hey mrunal plz plzzzz explain in english ...we are missing a lot becoz of language problem ..if u explain in English every one will understand na.. think about the south Indian aspirants also..!!!

[@himonraichowdhury3950]

+venkatesh bobby Brother its for there coaching classes in Gujrat. There people understand Hindi better. Try to learn a bit of hindi if you can along these videos it will help you in many ways in throughout india. Also teach people your native language!

[@aatmakumar4631]

Nice class mam

[@KuKstudypoint]

*Jai Hind Mam!* 🇮🇳😊💕💕💕 *(16/02/2020)* 💕💕💕💕💕 💕💕💕💕💕💕💕💕💕💕

[@para1704]

great ...sir

[@sneharangnekar4021]

Please show diagram more clearly, unable to read the nomenclature else lecture is very nice n description is given well 👏✌

[@rahulsingh97]

Thank you very much madam for a good Lecture.

[@chika946]

Great work sir....please continue..thanks

[@ankursinha3038]

thanks a lot, u guys are great

[@advamaanahmad]

Concept cleared thanku mam

[@cutiepie-dk6fs]

27 dec 2023 11:52 am started

[@pradityachaurasia5191]

At 8:34 what u says i can't understand.. plz any help..?

[@eventhorizon1306]

but why the polarity is alternate rather than being random...!

[@rethinkscience8454]

The earth is expanding. Their is not enough force from the splitting sea floor to cause continental movement. If their was the lest possible path for a force would be to create a mountain rang up to the surface of the ocean. Similar to the Hawaiian islands . The earth is expanding, this is why their is little to no sea level rising due to the pole ice melting.

[@monilsharma7259]

at 15:30 you show a diagram where the magnetic lines are originating from south pole . But according to convention we take origin of magntic lines from north pole and sinkng into south pole can anyone explain that ?

[@kunalpuri6035]

Where we have geographical North Pole it is actually a Earth's South Pole and vice versa. This is because our compass north pole always points towards earth's south pole (opposite pole attract each other) so to make it consistent with compass, geographical North Pole is kept at earth's magnetic south pole so that it now compass north pole point towards geographical North pole (which is actually magnetically earths South Pole) . I hope this explains your question

[@monilsharma7259]

Thanks

[@fanamamanj2732]

Mem apne bola earth apna pol change krti he to kis base pe bola..agar change hota he pole to humari position b change honi chaie

[@EthHack_Cop]

Thanks you so much

[@pankhurikarn769]

Yes diagram is really too much small.. Cant see properly.. And also ncert me to likha h ki oceanic crust jo h.. Unexpectedly thin hoti h to wo kaise mantle me subduction hota h?!! Aapne kaha ki yaha pe continental crust light hota h or continental heavy.. Kindly reduce confusion Please reply..

[@fighter6768]

Jai hind ma'am 🇮🇳 07/09/2019 9:37pm

[@caesar848]

Dhanyavad maam

[@mukulkumarsingh1550]

Mam labelling of diagrams are not visible. Please introduce bigger diagrams in slides

[@cutiepie-dk6fs]

27 dec 2023 12:15 pm completed

[@ZeelPatel107]

awesome

[@Stocktechindia]

thank u sir ...

[@himanshumishra2010]

page no 34 ncert diagram 4.3 ..why divergent plate boundary is written on mid ocean ridges which contradicts what rajtanil maam told here.. please explain

[@riddhibagaria3815]

new oceanic floor created due to volcanism will spread due to diverging limbs of convection cell at MOR

[@fighter6768]

JAI HIND MA'AM 😊 20/07/2020

[@aksshaysharma96]

Update challenger deep is the point in mariana trenxh and challemger deep missiom was conducted by nat geo

[@mohdsaqib6230]

Guys those who want some good quality content or good quality videos please register yourself in vajiram IAS Or somewhere else . Don't write these stupid comments here to disturbe other for whom these videos are more than enough.

[@APOORVA221]

Mam you teach very well its really helpful. I want to make in notice that i checked mariana trench location on google map it is showing in the middle to phillipines and northern mariana islands .

[@Theroomoffical007]

Dear Rajtanil Ma'm, why does google show the location of Mariana trench north-west to Northern Mariana islands? is there any rational behind it or its just a mistake that we can report to Google. I live in New Zealand and work as a software tech here and also i have been working on an application for Guam that i think is in the vicinity of this trench. There is other picture floating on internet that support your say that this trench is south-east to NMIs.

[@AAyushRanjan-yi6ob]

kuchh smjh nhi aaya bt phir dekhoge to aayega 😋

[@mohitgohana]

excellent , thanks alot ,clear my all doubts

[@reemaansari7586]

thanks sir . geo series..wonderful that is helping alot

[@gurpreetthind8915]

Thanks mam

[@pritishabanerjee4992]

Mam ek dbt hai.apnai bola ki Jo alternative polarity ocean k andar create hota hai kuki wo rock jab molten state mai hota hai to earth ka polarity wo adopt kar laita hai.ek chis samaj mai nahi ayi ki kya yai hamaisa compulsory hai ki rock jab molten state mai polarity adopt karta uska conjugate rock ka polarity opposite hoga jab melting position mai hoga.agar compulsory hai to ku compulsory hai?

[@KuKstudypoint]

🏆 *Jai Hind Mam!* 🏆 _(01/10/2018)🇮🇳(02:31 pm)_ 🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️🛡️ *BLOOD SWEAT TEARS* 🎯🎯🎯🎯🎯🎯🎯🎯🎯🎯🎯🎯🎯🎯🎯

[@PRINCEKUMAR-ug6yo]

Sir and MAM,,u are awesome...

[@KuKstudypoint]

*Jai Hind Mam!* (11/04/2018)➡️(05:45 pm)

[@GKartik_guru]

THE STUDY OF GEOTECTONICS AND PETROLOGY IS PROMINENTLY DONE BY GEOLOGISTS AND NOT BY GEOGRAPHERS... TO SAWAAL GEOGRAPHERS KO NAHI GEOLOGISTS KO THA... AUR USKA JAVAB GEOLOGISTS NE DHUNDAA...