High- and ultrahigh-pressure （UHP） eclogite-bearing metamorphic assemblages in the North Tianshan of Kyrgyzstan contain eclogite-bearing garnet amphibolites interlayered with phengite-beearing granitoid gneisses. Th...High- and ultrahigh-pressure （UHP） eclogite-bearing metamorphic assemblages in the North Tianshan of Kyrgyzstan contain eclogite-bearing garnet amphibolites interlayered with phengite-beearing granitoid gneisses. The mafic rocks were previously interpreted as remnants of a Precambrianm ophiolite, but field relationships clearly show them to be derived from mafic （gabbroic） dykes intruding the granitoid rocks We present U-Pb zircon,展开更多
文摘High- and ultrahigh-pressure （UHP） eclogite-bearing metamorphic assemblages in the North Tianshan of Kyrgyzstan contain eclogite-bearing garnet amphibolites interlayered with phengite-beearing granitoid gneisses. The mafic rocks were previously interpreted as remnants of a Precambrianm ophiolite, but field relationships clearly show them to be derived from mafic （gabbroic） dykes intruding the granitoid rocks We present U-Pb zircon,
