Sadly this is a story that is told well but factually inaccurate, full of poor science and misconceptions and of little use to revise the level of geography required by current geography examination boards. Using this to revise may damage your grade.
I mean no offence by this but I'm a A-level geography student and nothing I see here seems too dissimilar to what my exam board and teacher want me to learn. How is this information factually incorrect? Not saying that you are wrong, I'm just curious as to which part you see as inaccurate.
@@VictorAndraous I will try to be brief and have outlined 10 main points for you to check. Sadly, the geography in this video does not reflect what your examiners expect; and I am an examiner! 1. The radioactive elements that produce heat are in the mantle and crust - NOT the core which is made of iron and nickel. The core may contain about one tenth of one percent radioactive elements! 2. Plutonium is nearly always a man-made element created in a nuclear reactor from uranium. The radioactive minerals resulting in the Earth’s internal heat are uranium, thorium, and potassium and found in the mantle/crust. 3. The mantle is most certainly NOT molten/semi molten. It is very definitely SOLID. However, some areas are nearer the melting point of rock and flow whilst other areas are more rigid. 4. The ‘plastic’ asthenosphere is NOT MOLTEN/SEMI MOLTEN. It is solid. To say the lithosphere ‘floats’ on the asthenosphere is prone to misconception. 5. Tectonic plates are NOT just made of Oceanic OR Continental CRUST (but also rigid upper mantle). Consider the African plate, which features both oceanic and continental crust. 6. The use of the term ‘crust’ when referring to the plates is incorrect. The crust is NOT the plate. It is the LITHOSPHERE that represents the plate (i.e. the crust and rigid upper part of the Upper mantle). 7. Convection currents in the mantle involves convection of the SOLID mantle and NOT magma (which is liquid) as stated. 8. The convecting mantle does NOT drag down the crust. It is the density difference between the Lithospheric plate and the Asthenosphere that causes the plate to sink at subduction zones. This is what is meant by Slab Pull and it is thought this process drives mantle convection, not the other way around. 9. When oceanic lithosphere subducts IT does not melt but continues descending into the Earth. The descending plate brings down water dissolved within its minerals. It is the release of this water that causes the mantle ABOVE the descending plate to partially melt which causes volcanoes on the surface. 10. The Benioff Zone is a zone of shallow to increasingly deep earthquakes and is not the location where the plate melts. Good luck with your revision but remember not to believe everything you find on the internet or sadly even in some textbooks.
@@peteloader4194 Wow, Lots of information which is wrong which I would have not known. Is there any youtubers for a level geography you have found which actually say the information correctly? Thanks
@@peteloader4194 Hie thank you for the correction and information. But can you please refer us to the websites or channels that we can get at least more accurate information. Would really appreciate that. Thank you
Fantastic resource, Thankyou!
Thanks for making this video
Hey. THanks\., I am a student from the Caribbean. this helps a lot
Why is there no units for the density?
so helpful
Sadly this is a story that is told well but factually inaccurate, full of poor science and misconceptions and of little use to revise the level of geography required by current geography examination boards. Using this to revise may damage your grade.
I mean no offence by this but I'm a A-level geography student and nothing I see here seems too dissimilar to what my exam board and teacher want me to learn. How is this information factually incorrect? Not saying that you are wrong, I'm just curious as to which part you see as inaccurate.
@@VictorAndraous I will try to be brief and have outlined 10 main points for you to check. Sadly, the geography in this video does not reflect what your examiners expect; and I am an examiner!
1. The radioactive elements that produce heat are in the mantle and crust - NOT the core which is made of iron and nickel. The core may contain about one tenth of one percent radioactive elements!
2. Plutonium is nearly always a man-made element created in a nuclear reactor from uranium. The radioactive minerals resulting in the Earth’s internal heat are uranium, thorium, and potassium and found in the mantle/crust.
3. The mantle is most certainly NOT molten/semi molten. It is very definitely SOLID. However, some areas are nearer the melting point of rock and flow whilst other areas are more rigid.
4. The ‘plastic’ asthenosphere is NOT MOLTEN/SEMI MOLTEN. It is solid. To say the lithosphere ‘floats’ on the asthenosphere is prone to misconception.
5. Tectonic plates are NOT just made of Oceanic OR Continental CRUST (but also rigid upper mantle). Consider the African plate, which features both oceanic and continental crust.
6. The use of the term ‘crust’ when referring to the plates is incorrect. The crust is NOT the plate. It is the LITHOSPHERE that represents the plate (i.e. the crust and rigid upper part of the Upper mantle).
7. Convection currents in the mantle involves convection of the SOLID mantle and NOT magma (which is liquid) as stated.
8. The convecting mantle does NOT drag down the crust. It is the density difference between the Lithospheric plate and the Asthenosphere that causes the plate to sink at subduction zones. This is what is meant by Slab Pull and it is thought this process drives mantle convection, not the other way around.
9. When oceanic lithosphere subducts IT does not melt but continues descending into the Earth. The descending plate brings down water dissolved within its minerals. It is the release of this water that causes the mantle ABOVE the descending plate to partially melt which causes volcanoes on the surface.
10. The Benioff Zone is a zone of shallow to increasingly deep earthquakes and is not the location where the plate melts.
Good luck with your revision but remember not to believe everything you find on the internet or sadly even in some textbooks.
@@peteloader4194 Wow, Lots of information which is wrong which I would have not known. Is there any youtubers for a level geography you have found which actually say the information correctly?
Thanks
@@peteloader4194 Hie thank you for the correction and information. But can you please refer us to the websites or channels that we can get at least more accurate information.
Would really appreciate that. Thank you
@@peteloader4194 wow... most of the information my teacher taught me was wrong then...
why am i here i dont even do geography