intrusion appears to have been emplaced along a trend of conductive (sulphide bearing) country rocks.
[USPRwire, Tue Oct 09 2018] Pyroxenite
is an ultrabasic rock that consists of minerals that belong to the pyroxenes group-- predominantly, ferromagnesian minerals other than olivine.
For example, Mauna Loa contains higher proportions of an igneous rock called pyroxenite
, which comes from subducted ocean crust that typically melts at deeper levels than the model suggests.
Major element and trace element analyses of selected schist, schist sediment, peridotite and pyroxenite
samples are given in Table 2.
Nickel deposits in the country are predominantly associated with laterite ores (limonite being a member of the laterite family), but are also found in dunite, pyroxenite
and gabbroic rocks as stated by the Philippines' Mines and Geosciences Bureau.
The Tajno massif is composed of alkaline rocks ranging from syenite to pyroxenite
, cut by carbonatite veins (Krystkiewicz & Krzeminski 1992; Ryka 1992; Ryka et al.
The crustal section of the Muslim Bagh ophiolite consists of bands of dunite wehrlite pyroxenite
at the base overlain by the layered and foliated gabbro.
Hayasaka  suggested that the cumulate metagabbro (pyroxenite
, anorthosite, and eucrite) in the Asago area is rather similar in petrography and geochemistry to those in the Oshima peninsula and Ayabe areas (Figure 1), thus suggesting that this metagabbro originated from a lower crustal section of oceanic crust and was derived from the T-type MORB source (i.e., OB ophiolite) (Figure 2(a)).
In the Saghand region, the Chaydouni--Posht Badam complex rocks (Amphibolites, Gneisses, Schists, Migmatites, Anatectites) are indicative of a tectonic melange of Precambrian metamorphic rocks that have been transformed into Serpentinite together with Pyroxenite
and pyroxene--olivine-bearing rocks .
Ce anomaly in minerals of eclogite and garnet pyroxenite
from Dabie-Sulu ultrahigh pressure metamorphic belt: Tacking subducted sediment formed under oxidizing conditions.