Information om | Engelska ordet APHYRIC

Exempel på hur man kan använda APHYRIC i en mening

• The aphyric (no phenocrysts) basalts found on Saint Paul are distinct from other basalts found to date on the Amsterdam-Saint Paul Plateau, being mildly alkalic, incompatible element-enriched and highly fractionated.
• The bulk of the volcanic rock is basalt of aphyric to olivine-phyric lava, and tholeiitic or alkalic in composition.
• Dhinodhar Hill, is a volcanic plug rising above the local sandstone, and composed of relatively fresh, very fine-grained, black to dark grey, largely aphyric (largely without phenocrysts), aphanitic rock, rising to an elevation of 386 meters, it shows several near- vertical, dike-like tabular intrusions with well-developed columnar jointing, and a roughly circular ring breached to the east, enclosing a pronounced crater-like central depression.
• Lava flows contain clinopyroxene, olivine and quartz, the latter in the form of xenocrysts; rocks on the spatter cone are aphyric.

Förberedelsen av sidan tog: 74,87 ms.