Ultramafic xenoliths in Cenozoic alkali basalts from Yitong, northeast China comprise three types in terms of their modal mineralogy: lherzolite, pyroxenite and wehrlite. The wehrlite suite always contains interstitial pale/brown glass which occupies several per cent by volume of the whole rock. The texture of the wehrlites is porphyroclastic with some large strained grains of olivine (0.5-1 mm) scattered in a very fine grained matrix (0.1 mm), implying a metamorphic origin for the protolith rather than an igneous origin. The host minerals are compositionally zoned, showing evidence of reaction with a melt. Petrological evidence for resorption of spinel (lherzolite) and orthopyroxene (wehrlite) by infiltrating melt further supports the hypo...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
The Dalnyaya kimberlite pipe (Yakutia, Russia) contains mantle peridotite xenoliths (mostly lherzoli...
Mantle-derived xenoliths from western Victoria, Australia, contain glass in patches and veinlets, an...
Mantle-derived xenoliths from western Victoria, Australia, contain glass in patches and veinlets, an...
Mantle-derived xenoliths from western Victoria, Australia, contain glass in patches and veinlets, an...
Petrogenesis of various glasses, microlite assemblages and fluid and melt inclusions in minerals of ...
Spinel lherzolite xenoliths were found in phonolitic alkaline basalt in the Keluo area, Heilongjiang...
Spinel-bearing lherzolite and harzburgite mantle xenoliths from central Sardinia (Italy) contain gla...
The mantle-derived xenoliths from alkali-basalts of Finkenberg (West Germany) belong mostly to the l...
The mantle-derived xenoliths from alkali-basalts of Finkenberg (West Germany) belong mostly to the l...
Siliceous, aluminous and alkali-rich glasses, commonly found in patches and veins in spinel peridoti...
Siliceous, aluminous and alkali-rich glasses, commonly found in patches and veins in spinel peridoti...
Siliceous, aluminous and alkali-rich glasses, commonly found in patches and veins in spinel peridoti...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
The Dalnyaya kimberlite pipe (Yakutia, Russia) contains mantle peridotite xenoliths (mostly lherzoli...
Mantle-derived xenoliths from western Victoria, Australia, contain glass in patches and veinlets, an...
Mantle-derived xenoliths from western Victoria, Australia, contain glass in patches and veinlets, an...
Mantle-derived xenoliths from western Victoria, Australia, contain glass in patches and veinlets, an...
Petrogenesis of various glasses, microlite assemblages and fluid and melt inclusions in minerals of ...
Spinel lherzolite xenoliths were found in phonolitic alkaline basalt in the Keluo area, Heilongjiang...
Spinel-bearing lherzolite and harzburgite mantle xenoliths from central Sardinia (Italy) contain gla...
The mantle-derived xenoliths from alkali-basalts of Finkenberg (West Germany) belong mostly to the l...
The mantle-derived xenoliths from alkali-basalts of Finkenberg (West Germany) belong mostly to the l...
Siliceous, aluminous and alkali-rich glasses, commonly found in patches and veins in spinel peridoti...
Siliceous, aluminous and alkali-rich glasses, commonly found in patches and veins in spinel peridoti...
Siliceous, aluminous and alkali-rich glasses, commonly found in patches and veins in spinel peridoti...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
Silicate glasses in peridotite xenoliths from Avacha volcano have high SiO2 (up to 72 wt.) and highl...
The Dalnyaya kimberlite pipe (Yakutia, Russia) contains mantle peridotite xenoliths (mostly lherzoli...