Results 131 to 140 of about 824 (171)
Some of the next articles are maybe not open access.
Farmington Meteorite: Cristobalite Xenoliths and Blackening
Science, 1967The Farmington chondrite contains two small xenoliths of granular cristobalite, each surrounded by a thin reaction rim of diopsidic clinopyroxene. Similarities between the blackened structure and drusy cavities, characteristic of this meteorite, and those of an experimentally heat-treated chondrite suggest that Farmington was reheated rather than ...
openaire +2 more sources
Diamonds, Xenoliths, and Exploration Techniques
1991Diamonds and ultramafic xenoliths found in lamproites represent samples of the mantle ocurring near, and overlying, the source rocks of these magmas. Despite their rarity, these samples contribute significantly to the economic and scientific importance of lamproites.
Roger H. Mitchell, Steven C. Bergman
openaire +1 more source
1987
There are records of approx 3500 basaltic xenolith localities and a similar number of kimberlitic occurrences, although actual figures are much greater. The xenoliths group into: spinel-bearing peridotites from alkali basalts from oceanic, circum-oceanic, and young continental (rift) regions; spinel-garnet peridotites from peralkaline basaltic rocks in
Nixon, P. H., Davies, G. R.
openaire +1 more source
There are records of approx 3500 basaltic xenolith localities and a similar number of kimberlitic occurrences, although actual figures are much greater. The xenoliths group into: spinel-bearing peridotites from alkali basalts from oceanic, circum-oceanic, and young continental (rift) regions; spinel-garnet peridotites from peralkaline basaltic rocks in
Nixon, P. H., Davies, G. R.
openaire +1 more source