Impossible rocks…

…have  shown up on tiny Anjouan Island,  between Madagascar and the east coast of Africa.   It is a volcanic island,  so why does it have rocks which come from continental crust — more specifically,  from a river delta or beach?

Scientists are trying to figure out why rocks which have no business being located there are there,   How did they get there?   Where did they come from?  This sort of expedition and research can make science a whole lot of fun.  What few people know is that American colleges and universities have buildings stuffed full of rocks and animal specimens and tools and bones and written material which has never been examined by anybody.  There are numerous lifetimes of work just waiting to be undertaken.   Who knows what wondrous discoveries might be made by gathering this unknown material?