Tectonic Processes, Architecture and Iostopic Systematics of Deep Crustal Levels: Investigation of the Nagssugtoqidian Orogen of West Greenland

;​R o o t E n t y F 我 | C o m p o b j b W o r d d o c u m e n t O b j e c t P O O l 我| |4 @) ！# $ % &amp；(* +, -。/ 0 1 2 3 4 5 6 7 8 9:；= ?@ A B C D E F G H J F Microsoft Word 6.0文档MSWordDoc。6;e = e j j j j j j j j j Q 1 3 t5 Q j Q j j j j j j j在大多数显生宙造山带中，由于暴露程度很少足够深，与陆-陆碰撞有关的深部地壳特征很难研究。格陵兰岛西部的那格苏木托起甸造山带作为世界上前寒武纪深造山带中暴露最完整的前陆-前陆剖面之一，受到了广泛的关注。然而，最近的工作未能证实在造山带的任何地方存在大位移、地壳尺度剪切带和逆冲，这些应该标志着大陆-大陆缝合。该项目将与丹麦岩石圈中心合作，试图确定该带的年代、特征和解释该带的变质作用，并为其形成建立一个构造模型，该带以前被认为是一个深缝合的典型例子。结果应该确定变形是由于陆内构造环境还是洲际构造环境造成的。;Oh + 0 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $ H + 1 $R:模板\ WWUSER \ \正常。DOT 9526684 Felicia Smith Felicia Smith @ @ @ @ f# Microsoft Word 6.0 1;;​​K @ Normal a “ a @ ”默认段落字体Felicia Smith-\\CLM12\EARTESHR\1995SEPT\ABSTRACT\CONNEL.TXT @ hp LaserJet IIID LPT3：hppcl5a HP LaserJet IIID 8D R HP LaserJet IIID 8D R 1 Times New Roman Symbol & & Arial " h $ 5 9526684 Felicia菲利西亚·史密斯；;

; R o o t E n t r y F I| C o m p O b j b W o r d D o c u m e n t O b j e c t P o o l I| I| 4 @ ) ! " # $ % & ' ( * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; = ? @ A B C D E F G H I J F Microsoft Word 6.0 Document MSWordDoc Word.Document.6 ; e = e j j j j j j j Q 1 3 T 5 Q j Q j j j j ~ j j j j 9526684 Connelly Deep crustal features associated with continent-continent collisions are difficult to study in most phanerozoic orogens because the exposure levels are seldom deep enough. The Nagssugtoqidian Orogen of west Greenland has attracted much attention as one of the worlds most completely exposed foreland-to-foreland transects of a deep precambrian Orogen. However, recent work has failed to confirm the presence of major displacement, crustal-scale shear zones and thrusts anywhere in the orogen that should mark a continent-continent suture. This project, in conjunction with the Danish Lithosphere Centre, will attempt to date, characterize and interpret metamorphism of this belt, previously thought to be a type example of a deep suture, and develop a tectonic model for its formation. Results should determine if the deformation was due to an intracontinential or an intercontinental tectonic setting. ; Oh +' 0 $ H l D h S u m m a r y I n f o r m a t i o n ( R:\WWUSER\TEMPLATE\NORMAL.DOT 9526684 Felicia Smith Felicia Smith @ @ @ @ F # Microsoft Word 6.0 1 ; ; K @ Normal a " A@ " Default Paragraph Font Felicia Smith-\\CLM12\EARTESHR\1995SEPT\ABSTRACT\CONNEL.TXT @HP LaserJet IIID LPT3: hppcl5a HP LaserJet IIID 8D R HP LaserJet IIID 8D R 1 Times New Roman Symbol & Arial " h $ 5 9526684 Felicia Smith Felicia Smith ; ;