RPG: PTt History of the Central Anatolian Massif, Turkey

9317100惠特尼这项研究计划拨款旨在记录土耳其中安纳托利亚地块内两个地块(基尔赛希尔、尼格德)的变质历史。这些变质地块被解释为从非洲阿拉伯裂解而来的大陆碎片，目前它们占据着特提斯地区被缝合带包围的关键构造位置。初步研究将集中在(1)描述递进变质相中的矿物组合，(2)利用成分信息和反应结构记录矿物共生和PTT路径，(3)评估地块变质和侵位的物理条件，以及(4)确定对这些岩石的进一步研究如何有助于正在进行的关于变质流体在角闪岩-麻粒岩转变和超变质作用中作用的讨论。规划活动将包括实地和分析工作(矿物、全岩分析、同位素测年)。

9317100 Whitney This research planning grant seeks to document the metamorphic history of two massifs (Kirsehir, Nigde) within the Central Anatolian Massif in Turkey. These metamorphic massifs have been interpreted as continental fragments rifted from Afro-Arabia, and currently they occupy a key tectonic position surrounded by suture zones in the Tethyan domain. Preliminary research will focus on (1) describing mineral assemblages in progressive metamorphic facies, (2) documenting mineral paragenesis and PTt paths using compositional information and reaction textures, (3) evaluating the physical conditions of metamorphism and emplacement of the massifs, and (4) determining how further study of these rocks might contribute to ongoing discussions of the role of metamorphic fluids in amphibolite-to- granulite transitions and ultrametamorphism. Planning activities will include both field and analytical work (mineral, whole-rock analysis, isotopic dating).