supported by Major State Basic Research Development Program(973 Program,no. 2011CB403000);National Natural Science Foundation of China (Nos: 40703018; 41173051; 41172131)
Fluid inclusions in halite can directly record the major composition of seawater,however Ordovician halite is very rare.Ordovician is a key time during the evolution history.However there are no Ordovician seawater da...