Identification of mantle peridotite as a possible Iapetan ophiolite sliver in south Shetland, Scottish Caledonides
Posted on 2016-09-20 - 13:45
The Neoproterozoic Dunrossness Spilite Subgroup of south Shetland, Scotland, has been interpreted as a series of komatiitic and mafic lava flows formed in a marginal basin in response to Laurentian continental margin rifting. We show that ultramafic rocks previously identified as komatiites are depleted mantle peridotites that experienced seafloor hydrothermal alteration. The presence of positive Bouguer gravity and aeromagnetic anomalies extending from the Dunrossness Spilite Subgroup northward to the Shetland Ophiolite Complex suggests instead that these rocks may form part of an extensive ophiolite sliver, obducted during Iapetus Ocean closure in a forearc setting.
CITE THIS COLLECTION
DataCite
3 Biotech
3D Printing in Medicine
3D Research
3D-Printed Materials and Systems
4OR
AAPG Bulletin
AAPS Open
AAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)
Academic Medicine
Academic Pediatrics
Academic Psychiatry
Academic Questions
Academy of Management Discoveries
Academy of Management Journal
Academy of Management Learning and Education
Academy of Management Perspectives
Academy of Management Proceedings
Academy of Management Review
Day, James M.D.; O'Driscoll, Brian; Strachan, Rob; Daly, Stephen; Walker, Richard (2016). Identification of mantle peridotite as a possible Iapetan ophiolite sliver in south Shetland, Scottish Caledonides. Geological Society of London. Collection. https://doi.org/10.6084/m9.figshare.c.3469161.v1
or
Select your citation style and then place your mouse over the citation text to select it.
SHARE
Usage metrics
Read the peer-reviewed publication
AUTHORS (5)
JD
James M.D. Day
BO
Brian O'Driscoll
RS
Rob Strachan
SD
Stephen Daly
RW
Richard Walker
CATEGORIES
KEYWORDS
seafloor hydrothermal alterationIapetan ophiolite slivermantle peridotiteIapetus Ocean closureScottish CaledonidesDunrossness Spilite SubgroupNeoproterozoic Dunrossness Spilite Subgroupaeromagnetic anomaliesmantle peridotitesBouguer gravitymafic lava flowsShetland Ophiolite Complexultramafic rocksmargin riftingophiolite sliverGeology