My new interest

All of a sudden I have develop some interest in Geophysics. Plate tectonics, Oceanic, Formation of Grand Canyon, Effect of big dam on tectonic activities, cities situated on fault lines are my some of the topics my latest search on internet. It looks I am going to sustain this one for long time and if not contribute any thing to it, may be gain a lot.

Although this is not directly related to my field of work, but physics and geography have always been something I find interesting. Geophysics, being branch which ,takes something from both of them, is naturally the best suited candidate for my area of exploration.

There are some questions in my mind, Does the study of map comes under this, Does it also study the entropy of this planet, how closely astrophysics and geophysics related etc... I don't know If I will be able to get answers to these questions and what will be the effects of not being able to find answers to these questions, on my interest.