I'd like to learn about the formation mechanism of troctolite and whether there exists any link among the origins of peridotite, gabbro and that of troctolite.
Renna & Tribuzio (2010) is great on-land field study that shows that troctolites form at the contact of a gabbroic pluton intruded into residual mantle peridotites. Their study confirms a hypothesis based on observations made during Expeditions 304 and 305 of the Integrated Ocean Drilling program in 2004 and 2005, at the Mid-Atlantic Ridge near 30N... The papers that discuss the troctolite formation are: