In Continental Basalts and Mantle Xenoliths
His current research involves taking students to places like Monterrat (West Indies) to study xenoliths
and volcanic stratigraphy, Iceland to study volcano-ice interactions, and northern British Columbia to map and collect samples of volcanic deposits, especially from volcanoes that erupted beneath or against ice.
Chemical and isotopic composition of the lower crust beneath the Meguma Lithotectonic Zone, Nova Scotia: Evidence from granulite facies xenoliths
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.
diamond bearing mantle xenoliths
in kimberlite identified at Seitapera,
He discusses the impact of meteors, the geology of shield areas and their associated rocks and minerals, pegmatite and pegmatite minerals, early minerals and rocks associated with the formation of the atmosphere, unusual minerals linked to early limestone-like rocks, greenstone belts and their connection to the earth's gold deposits, marble and quartz, and xenoliths
in igneous granite.
705) and the presence of emplaced xenoliths
of metamorphic rocks support this interpretation (Jaramillo, 2010).
Hornblende is found in some of the summit samples, as are small gabbroic, plagioclase-magnetite, and ultramafic xenoliths
that may represent disaggregated cumulates (Herzer 1971).
1:00 Shannon Heinle (UND) CLINOPYROXENE, ORTHOPYROXENE, AND OLIVINE CHEMISTRIES IN ULTRAMAFIC TO MAFIC XENOLITHS
This study will produce detailed maps of small but representative areas including: (1) detailed topography to a small contour interval; (2) mapping of lithologic textures including megascopic mineralogy, xenoliths
, flow foliations, and phenocryst morphology and distribution; (3) mapping of structures such as joints, fractures, and faults; and (4) surface weathering textures.
Armienti & Tarquini (2002) studied olivine crystal size distributions in xenoliths
using fractal methods.
The outcrops at their Cristal occurrence are stripped of vegetation by exploration crews, and coated with xenoliths
, rock fragments encased in volcanic breccias pushed upward from deep inside the mantle.