1. plural of tephrite; volcanic rocks intermediate in composition between basalt and andesite, containing plagioclase feldspar and pyroxene
Usage: geology

Examples

• The volcanic field contained numerous tephrites formed during the eruption.
• Geologists identified tephrites in the rock samples from the ancient lava flow.
• The tephrites showed characteristic mineral compositions typical of intermediate volcanic rocks.
• Laboratory analysis confirmed the presence of tephrites in the volcanic deposit.
• The study focused on the formation processes of tephrites in island arc settings.