A half-century of geologic and geothermic investigations in Iceland: The legacy of Kristjn Smundsson

Date

2020

Authors

Voight, Barry
Clifton, Amy
Hjartarson, Arni
Steingrimsson, Benedikt
Brandsdottir, Bryndis
Rodriguez, Carolina
McGarvie, David
Sigmundsson, Freysteinn
Ivarsson, Gretar
Omar Frieithleifsson, Guethmundur

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Abstract

One of the World's premier field geologists, Kristján Sæmundsson led immense geological mapping programs and authored or co-authored nearly all geological maps of Iceland during the past half century, including the first modern bedrock and tectonic maps of the whole country. These monumental achievements collectively yield the most inclusive view of an extensional plate boundary anywhere on Earth. When Kristján began his work in 1961, the relation of Iceland to sea-floor spreading was not clear, and plate tectonics had not yet been invented. Kristján resolved key obstacles by demonstrating that the active rifting zones in Iceland had shifted over time and were linked by complex transforms to the mid-ocean spreading ridge, thus making the concept of sea-floor spreading in Iceland acceptable to those previously skeptical. Further, his insights and vast geological and tectonic knowledge on both high- and low-temperature geothermal areas in Iceland yielded a major increase in knowledge of geothermal systems, and probably no one has contributed more than he to Icelandic energy development. Kristján's legacy is comprised by his numerous superb maps on a variety of scales, the high quality papers he produced, the impactful ideas generated that were internationally diffused, and the generations of colleagues and younger people he inspired, mentored, or otherwise positively influenced with his knowledge and generous attitude

Description

Keywords

Iceland, Mid-ocean ridge, Sea-floor spreading, Plate tectonics, Volcanic eruption, Geothermal activity, Rift tectonics, Transform fault, Geomagnetism, Geochronology

Citation

Source

Journal of Volcanology and Geothermal Research

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1016/j.jvolgeores.2018.08.012

Restricted until

2099-12-31