The sections demonstrate that the mapped surface PGE-enriched mineralization of the margin of the AN-Series, where the presence of magnetic basalt and sandstone xenoliths
occur, has continuity at depth.
are rock fragments or inclusions that are torn from the sides of lava tubes and caught up in magma as it moves through Earth.
rocks are slightly heavier on average, but their distribution of density overlaps that of the matrix.
The three additional representative samples reported upon, referenced as Matrix, Xenolith
and ROM also continue to confirm and support the theory that most of the diamonds in this area are preferentially contained in the Xenolith
portion of the rock outcrop.
6), with block structure comprising numerous xenoliths
(up to ~100 m long) of pervasively recrystallised Unity anorthosite hosted by igneous-textured leucogabbronorite-leuconorite (Fig.
drilling,particularlythe discovery of a new mantle xenolith
Hill and Ross (1983) concluded that the age of 238 [+ or -] 26 Ma obtained from a granulite xenolith
represented the cooling age of the dyke, and is in close agreement with the 246 [+ or -] 4.
Some of them entrain deep crustal and mantle xenoliths
to the surface, providing the only direct rock samples of the lithosphere available to us.
The nature of the subcontinental lithospheric mantle (SCLM) of the Slave is particularly well defined through geophysical and xenolith
The DFI drill program is targeting geophysical anomalies which may represent the massive sulphide body from which the Homse xenolith
has been torn.
Compositional gradients in xenolith
olivine adjacent to type 2 glass pools and jacket glass can be modelled as Fe-Mg interdiffusion profiles tbat indicate melt -- olivine contact times between 0.
Experimental high-pressure granulites: Some applications to natural mafic xenolith
suites and Archean granulite terranes.