Cross chunk procedural terrain generation.

Hey guys,
So I was working on a summer project and I wanted to try something with procedural generation. What I wanted to do is to generate some islands but then I stumbled on some problems. So my world is divided into chunks of 100*100 tiles. I want to generate the chunk when the player enters it for the first time. But how am I going to generate such islands? And how am I going to generate cross chunk island (when a island is on the border of the chunk I want it to continue on the next chunk). Btw chunks are saved in files as a string like :
Chunk 0,0 = 000001000500003002
Where each int stands for a tile type.
Can someone link me to some usefull resources or just give me an idea on how to do this?