The minerals of these rocks consists of olivine, clinopyroxene
, orthopyroxene and chrome- spinel that have mesh and granular texture that altered to serpentine minerals and iron-oxid (Fig.
Individual coarse grains of clinopyroxene
and plagioclase in the dyke may be from these clusters, which are often partly disaggregated.
Petrogenetic significance of orthopyroxene-free garnet + clinopyroxene
+ plagioclase [+ or -] quartz-bearing metabasites with respect to the amphibolite and granulite facies, Journal of Metamorphic Geology.
Plagioclase and clinopyroxene
have a sufficiently high hardness on the Mohs scale (6 and 5-5.
The sills contain small pseudomorphs of olivine, plus plagioclase and clinopyroxene
The main minerals are plagioclase, clinopyroxene
, orthopyroxene, and magnetite; the veins and vugs contain quartz, calcite, and zeolite.
The anomalous values are underlain by clinopyroxene
Nimis and Taylor Single Grain Clinopyroxene
Thermobarometer (2001) was used to
1:00 Shannon Heinle (UND) CLINOPYROXENE
, ORTHOPYROXENE, AND OLIVINE CHEMISTRIES IN ULTRAMAFIC TO MAFIC XENOLITHS
50-54]), a few per cent clinopyroxene
and orthopyroxene ([Fs.
The geochemical trends suggest clinopyroxene
saturation was not achieved and samples mostly lack clinopyroxene
The flow is a coarse-grained, ophitic basalt containing heavily altered plagioclase and relatively unaltered clinopyroxene