نتایج جستجو برای: amphibolite
تعداد نتایج: 506 فیلتر نتایج به سال:
The Majerad metamorphic complex is located in the northern margin of the Central Iran structural zone and southeast of Shahrood, includes a wide variety of metacarbonate, metabasite (greenschist, amphibolite and garnet amphibolite), metapelite, metapsammite and metarhyolite. The protolith of metabasites has been submarine basaltic lava flows which erupted in the Late Neoproterozoic intracontine...
The amphibolitic xenoliths are the most aboundant xenoliths in the Markouh dacitic dome northeast of Birjand. The Markouh dacite is composed of plagioclase, quartz, green hornblende, biotite, magnetite and amphibolitic xenoliths that are contaning brown- green hornblende, plagioclase ± biotite ± quartz ± pyroxene. Determination of temperature and pressure of these rocks, based on Al content in ...
We present our aeromagnetic survey results from an investigation of the iron ore mineral distribution in Pocheon, Korea, west-central area Korean Peninsula. A manned system using a helicopter for regional exploration and unmanned multicopter high-resolution were used survey. The inversion magnetic data confirmed possibility existence new body. Drilling was carried out based on drilling revealed...
Understanding the factors that contribute to U^Pb discordance in zircon is essential for interpreting isotopic data and for assessing the validity of concordia intercept ages. Modification caused by interaction with metamorphic fluids is often cited as a primary means by which significant or even complete isotopic resetting of U^Pb systematics in zircon might be achieved under subsolidus condit...
Abstract In the southeastern part of Chios Island, Greece, exotic blocks amphibolites and serpentinized peridotite can be found within a narrow, approximately N–S elongated area adjacent to non-metamorphosed sedimentary strata Triassic age its west Cenozoic east. this work, we present for first time petrological mineral chemical data ultramafic rock fragments from SE describe their possible ori...
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