Learn all the basics of geology in our new conversational textbook - campGEO!Available here: geo.campcourses.comIn this episode, we tackle the issue of when plate tectonics started on Earth and why this is an important question.  This is a large part of Jesse's research so he has a lot to say.  In order to address this question, we first discuss some parameters and what defines plate tectonics.We also get into some detail by discussing some variations on the plate tectonics model:  Things like sagduction, squishy-lid tectonics, stagnant lid tectonics and episodic tectonics to name a few.  We hope you enjoy!Like, Subscribe, and leave us a Rating!Instagram: @planetgeocastTwitter: @planetgeocastFacebook: @planetgeocastSupport us: https://planetgeocast.com/support-usEmail: planetgeocast@gmail.comWebsite: https://planetgeocast.com/Like, Subscribe, and leave us a Rating!——————————————————Instagram: @planetgeocastTwitter: @planetgeocastFacebook: @planetgeocastSupport us: https://planetgeocast.com/support-usEmail: planetgeocast@gmail.comWebsite: https://planetgeocast.com/