sentences:  Mariners is hosted in a north plunging trough structure on the footwall of the Mariners Contact of the Widgiemooltha Komatiite and has the form of a series of partially overlapping kidney-shaped pods of nickel sulfide ore arranged en-echelon down the plunge line.This has been interpreted as disjunction and reassembly of an originally contiguous ribbon of nickel sulfide ore by structure.Mariners is renowned for its extremely high arsenic contents, with common arsenopyrite, nickeline, gersdorffite and other arseno-sulfide minerals common in the ore during the earlier years of mining.