Learn · Tectonics and Geodynamics
Lecture 4 of 63week-01
Lecture 04 : Sea Floor Spreading
Prof. Saibal Gupta · IIT Kharagpur
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All the lectures
- Lecture 01 : The beginnings - Continental Drift Theory
- Lecture 02 : Demise of the Continental Drift Theory
- Lecture 03 : The Sea Floor
- Lecture 04 : Sea Floor Spreading
- Lecture 05 : Rigid Plates on the Earths Surface
- Lecture 06 : How plates would move on a flat Earth
- Lecture 07 : Three Plate Motions on a Flat Earth
- Lecture 08 : Plate boundary movements on a Flat Earth
- Lecture 09 : Triple junctions on a flat Earth – Part I
- Lecture 10 : Triple junctions on a flat Earth – Part II
- Lecture 11 : Evaluation of selected triple junctions
- Lecture 12 : Plate Motions on a Spherical Earth
- Lecture 13 : Calculating Relative Motions at Plate Boundaries
- Lecture 14 : Combination of Rotation Vectors
- Lecture 15 : Finite and Infinitesimal, Rotations, and Absolute Plate Motions
- Lecture 16 : The Magnetic Field of the Earth
- Lecture 17 : Calculating the Earth's Magnetic Field
- Lecture 18 : Calculating the Earth's Magnetic Field(Contd.)
- Lecture 19 : Magnetizing rocks and Magnetic Anomalies
- Lecture 20 : The Geomagnetic Reversal Time Scale
- Lecture 21 : History of the Oceans
- Lecture 22 : It's all About Heat!
- Lecture 23 : The 1-D Heat Conduction Equation
- Lecture 24 : More on the Heat Conduction Equation
- Lecture 25 : The Equilibrium Geotherm
- Lecture 26 : Conditions affecting the equilibrium geotherm
- Lecture 27 : Continental Heat Flow and Heat Flow Provinces
- Lecture 28 : Heat Flow Provinces in Crust with active erosion
- Lecture 29 : The thermal Gradient in the Earth's Mantle
- Lecture 30 : Thermal Structure of the Earth's Mantle
- Lecture 31 : Oceanic Heat Flow
- Lecture 32 : Cooling of the Oceanic Lithosphere - I
- Lecture 33 : Cooling of the Oceanic Lithosphere - II
- Lecture 34 : Cooling of the Oceanic Lithosphere and Bathymetric Depth
- Lecture 35 : Forces acting on Plates - Driving and Resistive Forces
- Lecture 36 : The breakings of continents - I
- Lecture 37 : The breakings of continents - II
- Lecture 38 : Formation of passive continental margins
- Lecture 39 : Stretching the Lithosphere
- Lecture 40 : Consequences of continental Lithospheric stretching
- Lecture 41 : Formation of extensional basins and continental margins
- Lecture 42 : The Mid-Oceanic Ridge Rift Sysem
- Lecture 43 : Structure of the ocean crust and the ophiolite model
- Lecture 44 : Mantle Petrology
- Lecture 45 : Melting of the mantle at Mid-Oceanic ridges
- Lecture 46 : Conservative Plate Boundaries - Transform Faults
- Lecture 47 : Oceanic Transform Faults - Morphology and Crustal Structure
- Lecture 48 : Explaining the Idiosyncrasies of Oceanic Transforms - I
- Lecture 49 : Explaining the Idiosyncrasies of Oceanic Transforms - II
- Lecture 50 : Continental Transforms
- Lecture 51 : Convergent Margins
- Lecture 52 : Geophysical characteristics of subduction zones
- Lecture 53 : The arc basement and accretionary prism
- Lecture 54 : Mechanics of Thrust sheets and accretionary prism process - I
- Lecture 55 : Mechanics of Thrust sheets and accretionary prism process - II
- Lecture 56 : Arcuate trenches, outer swells & back-arc basins
- Lecture 57 : Magmatism associated with subduction zones
- Lecture 58 : Collisions!
- Lecture 59 : Continent-Continent collisions & Formation of Suture Zones
- Lecture 60 : Did Plate tectonics operate on Early Earth
- Live Session 13-02-2025
- Live Session 18-03-2025
- Live Session 21-04-2025