Salina at Puerto Penasco split into 7 groups 1. Where are we? 2. What made this depression? Where does the water come from? Where could it come from naturally? 3. Make some predictions of water chemistry. 4. What do the colors mean? What is the crystalline material? 5. Make a section though the mat. What is the smell? What is the black color from? What is the green color from? What is the pink/orange color from? 6. Ecosystem dynamics Why are there mats here and not at the Estero Morua? How does this relate to the Precambrian? What is the flow of materials and energy in this mat like? What are the oxidizers and reductants in each layer? What do the rings mean? 7. Why the dead birds? Is it poisoning or preservation? 9. Long-term history What previous history is this community dependent on? What do you think the life span of this Salina is? Will it leave any record?