Abstract
Around the settlement of Itivdleq the general form of the Kangamiut dykes varies according to whether the intrusions occur within or outside the pre-dyke Itivdleq shear zone (fig. 1; Nash, this volume). Outlined below is an interpretation of the origin and development of the different dyke forms in the shear zone and some brief remarks on the significance of the results.
Highlights
Outside the Itivdleq shear zone the dykes, which trend NE to NNE, exhibit a planar parallel-sided form with large length-width ratios; their geometry reflects the configuration of the syn-magmatic fracture system into which they were emplaced
Primary igneous textures are extensively preserved in the intrusions many show signs of minor intra-dyke deformation
A pinch and swell form broadly represents the most commonly occurring dyke shape, this term encompasses a wide variety of forms ranging from intrusions composed of short, lemon-shaped swells to others with elongated, spearlike swells interconnected by narrow intrusive necks
Summary
Around the settlement of Itivdleq the general form of the Kangamiut dykes varies according to whether the intrusions occur within or outside the pre-dyke Itivdleq shear zone (fig. 1; Nash, this volume). Outlined below is an interpretation of the origin and development of the different dyke forms in the shear zone and some brief remarks on the significance of the results
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
