Complex sentence: Deviation away from the 0.00 number is expresses as the δ34S which is a ratio in ppt (‰) value with positive values correlating to a great amount of 34 S and more negative values correlating with greater 32 S in a rock or mineral.
Split into simpler sentences: Deviation away from the 0.00 number is expresses as the δ 34 S which is a ratio in ppt (‰). Positive values correlating to a great amount of 34 S and more negative values correlating with greater 32 S in a rock or mineral.