Hello Mam, I am Priya. From India , Nice to meet you ,I love your teaching and your explanation, you really explain in detail and with diagrams so it make it easier to understand, stay Healthy ❤️ and thks ☺️
One question!! When the oceanic plate subducts below the continental plate, the rate of subduction must decrease with time since subducting cold oceanic plate will be getting less denser and lighter gradually because of thermal gradient. Don't you think this effect must slow down slab pull motion?
Welcome back mam! Thank you, thank you. You are doing great ! Many things learned from you. I am geography student. Your teaching style is unique and interesting. Keep it up mam
for slab pull to be possible, • the crust/lithosphere would need to have colossal tensile strength (which no rock has, especially in bulk). • it requires the formation of new lithosphere at the divergent boundary to produce a more or less continuous solid. But rapid cooling tends to result in small crystal structures and a lithosphere that is jointed and more likely to be fractured, chaotic, brittle. • the apparent relative ease with which often offset transform faults are formed in association with divergent boundaries also mitigates against the concept of slab pull. • further, ocean lithosphere shows evidence of cracking as it turns into subduction - a clear sign of weakness. • over extended distances, the curvature of the Earth will impact the lithosphere. The existence for example of white smokers infers cracking. it is not credible that slab suction would be powerful enough to move continental crust/lithosphere • in this scenario, if the subducting plate is to sustain its ability ''to pull'' then subducted material must disperse, migrate, be absorbed by its surroundings in order to create a space or hole to enable subduction to continue.
EXAM tomorrow really did help me thank you !
Mam your explanation is very powerful 😌
Thanks a lot 😊
Very very useful! Thank you for your great teaching
Hello Mam, I am Priya. From India , Nice to meet you ,I love your teaching and your explanation, you really explain in detail and with diagrams so it make it easier to understand, stay Healthy ❤️ and thks ☺️
Awsome video awsome explaining
Madam your explanation gives me more satisfaction to my doubt that how tectonic plates move
One question!!
When the oceanic plate subducts below the continental plate, the rate of subduction must decrease with time since subducting cold oceanic plate will be getting less denser and lighter gradually because of thermal gradient.
Don't you think this effect must slow down slab pull motion?
I guess the subducted oceanic plate get melt as it got down and become molten magma .
Welcome back mam! Thank you, thank you. You are doing great ! Many things learned from you. I am geography student. Your teaching style is unique and interesting. Keep it up mam
Love from india 😊
for slab pull to be possible,
• the crust/lithosphere would need to have colossal tensile strength (which no rock has, especially in bulk).
• it requires the formation of new lithosphere at the divergent boundary to produce a more or less continuous solid. But rapid cooling tends to result in small crystal structures and a lithosphere that is jointed and more likely to be fractured, chaotic, brittle.
• the apparent relative ease with which often offset transform faults are formed in association with divergent boundaries also mitigates against the concept of slab pull.
• further, ocean lithosphere shows evidence of cracking as it turns into subduction - a clear sign of weakness.
• over extended distances, the curvature of the Earth will impact the lithosphere. The existence for example of white smokers infers cracking.
it is not credible that slab suction would be powerful enough to move continental crust/lithosphere
• in this scenario, if the subducting plate is to sustain its ability ''to pull'' then subducted material must disperse, migrate, be absorbed by its surroundings in order to create a space or hole to enable subduction to continue.
🙏
You're welcome!
Why us the moon doing cartwheels is the earth tilted on its side? Maybe since 2010?