Turkey 2008 field work in the Sivrihisar Massif
Donna Whitney, Erkan Toraman, Christian Teyssier, Nicholas Seaton, Valerie Morgan, Basak Ulker
Layers of marble, schist, quartzite, and amphibolite in the Sivrihisar Massif. The rocks at the end of the ridge on the left (north) were metamorphosed at high-pressure conditions (subduction) and the rocks at the right side of the ridge (south) record lower pressure - higher temperature conditions (collision).
Layers of marble and schist in the high-pressure (blueschist/eclogite) part of the Sivrihisar Massif, near the village of Ikipinar |
Eclogite pod surrounded by blueschist facies metabasalt and metasedimentary rocks, near the village of Halilabagi. The elliptical-shaped pod has been deformed with its surrounding rocks |
A friendly sheep-herding dog (part Kangal, part something else) |
Steep (~ vertical) contact between serpentinite on the left (north) and the high-P (blueschist/eclogite) rocks to the south, near the village of Okçu. The contact is just to the left of the last big tree on the ridge behind the village. |
Christian Teyssier and Nick Seaton collecting/measuring quartzite; most of the white rocks in the background are marble |
Dramatic representation of the Al2SiO5 phase diagram on an outcrop of andalusite + kyanite + sillimanite-bearing quartzite |
Lawsonite eclogite pod with epidote-rich rind, near the village of Ikipinar. |
Close-up of coarse lawsonite (white crystals) and epidote rim (pistachio green). The darker green is omphacite. |
Marble in the high-P zone of the Sivrihisar Massif is fibrous -- thin, elongate grains in distinct layers (compositional layering) |
Outcrop of fibrous marble, showing compositional layering defined by pure calcite marble and calcite + quartz layers |
White and red poppies, near the village of Sarikavak |
Marble quarry, near the village of Okcu |
Interlayered blueschist and eclogite |
Interlayered blueschist and eclogite |
