sentences:  Depending on area and volcanic facies, there can be anywhere from greater than 24 individual flow units to as few as three flows within the Widgiemooltha Komatiite.The komatiite is typically of high magnesian character throughout, although flow top spinifex zones may get to as low as 18% MgO.Highest magnesium contents in rocks occur within the Wannaway area, with magnesium contents of up to 45% MgO reported from adcumulate serpentinite lithologies in the basal flow.