Alfred's role in plate tectonics was that he said continents went through ocean crust. Arthur Holmes assisted in the recognition of Wegener's theory.
Welcome back class today we will be talking about Pangaea. The theory of pangaea was created by Alfred Wegener. This idea of his was not accepted by scientists. Pangaea was the idea that all the continents were once all together as one giant land mass. Click To EditWelcome back class today we will be talking about Pangaea. The th Help Insert ParagraphUndoes the last commandRedoes the last commandTabUntabSet a bold styleSet a italic styleSet a underline styleSet a strikethrough styleClean a styleSet left alignSet center alignSet right alignSet full alignToggle unordered listToggle ordered listOutdent on current paragraphIndent on current paragraphChange current block's format as a paragraph(P tag)Change current block's format as H1Change current block's format as H2Change current block's format as H3Change current block's format as H4Change current block's format as H5Change current block's format as H6Insert horizontal rulelinkDialog.show Summernote 0.8.11 · Project · Issues
How do plate tectonics move
Now we are going to talk about how tectonic plates move. Convection currents in the mantle this is caused by heat from the earths core,the core heats up rocks the heated rocks rise at a divergent boundary then cools and becomes dense and sinks at a convergent boundary this happens over and over which moves the plates slowly
Ridge push is the pushing of a tectonic plate as they move away from a divergent boundary. Slab pull is when the leading edge of the plate sinks it pulls the rest of the plate.
Real world experience
We live on the north American plate we are bordered by the eurasian plate. We are in danger where we are because we are along the ring of fire were the most destructive things happen. In the near future we will have a major earth quake because we are along the san andreas fault which will cause many problems.