期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2008
卷号：2
出版社：IOP Publishing
摘要：The island of Syros, Greece is part of the Attic-Cycladic blueschist belt,
formed during Mesozoic Eurasia-Africa subduction. The rocks of Syros can be
broadly divided into three tectono-stratigraphic units: (I) metamorphosed
sedimentary and volcanic rocks (marble-schist sequence), (II) remnants of
oceanic crust with fault-bounded packages of blueschist/eclogite-facies mafic
rocks and serpentinite (mafic-ultramafic rocks) and (III) the Vari gneiss, which
is a tectonic klippe. Low-temperature, high-pressure assemblages are found on
several islands in the Cyclades. The best preserved of these rocks are on Syros
and Sifnos islands. Mineral compositions and peak metamorphic assemblages are
similar on both islands. Both islands are considered to share similar P-T
histories with highest-pressure mineral assemblages reflecting conditions of at
least 15 kbar and about 500°C.
