Figure F18. Plot of variations of olivine and plagioclase for three separate vertical sections through the Oman gabbro section from Pallister and Hopson (1981) modified with the addition of olivine and plagioclase compositions from the CY-4 drill hole in the Troodos Ophiolite gabbros from Malpas et al. (1989), analyses of plagioclase and olivine from Hole 894G in old East Pacific Rise high-level gabbros at Hess Deep (Natland and Dick, 1996) and the composition field for olivine for Hole 735B gabbros and microgabbros. The Skaergaard trend is shown as normalized to the height of the Oman section by Pallister and Hopson (1981). Column on far right shows the stratigraphic divisions of the Skaergaard Intrusion. SH = sandwich horizon, UZ = upper zone, MZ = middle zone, LZ = lower zone, HZ = hidden zone.

Figure F18. Plot of variations of olivine and plagioclase for three separate vertical sections through the Oman gabbro section from Pallister and Hopson (1981) modified with the addition of olivine and plagioclase compositions from the CY-4 drill hole in the Troodos Ophiolite gabbros from Malpas et al. (1989), analyses of plagioclase and olivine from Hole 894G in old East Pacific Rise high-level gabbros at Hess Deep (Natland and Dick, 1996) and the composition field for olivine for Hole 735B gabbros and microgabbros. The Skaergaard trend is shown as normalized to the height of the Oman section by Pallister and Hopson (1981). Column on far right shows the stratigraphic divisions of the Skaergaard Intrusion. SH = sandwich horizon, UZ = upper zone, MZ = middle zone, LZ = lower zone, HZ = hidden zone.