Abstract
This paper points out five anomalies of the Icelandic upper crust that are not compatible with currently accepted construction models. These anomalies are (1) assumption of a single time‐averaged plate boundary, (2) irregular depth distribution to seismic layer 3, (3) the assumption of a uniform vertical compositional zonation, (4) the “excess width” of Iceland, and (5) abnormal variations in the duration and stratigraphic thickness of chron 5 time lavas in western, northern, and eastern Iceland. A model involving frequent shifts of the volcanic zones in Iceland is outlined that suggests a way to account for the above structural anomalies. The model also suggests that detailed studies of basalt lava facies types may be used effectively to trace small‐scale shifts of the Tertiary plate boundary.
Sign-in/Register to access full text options 
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.
