ingv:https://data.ingv.it/metadata/iso19115/582.xml
eng
utf8
dataset
Istituto Nazionale di Geofisica e Vulcanologia - INGV
ufficiogestionedati@ingv.it
http://istituto.ingv.it/it/ufficio-gestione-dati
pointOfContact
2021-10-07
Linee Guida RNDT
2.0
Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland
2020
publication
2020-06-01
creation
ingv:https://doi.org/10.5880/fidgeo.2020.026
Istituto Nazionale di Geofisica e Vulcanologia - INGV
ufficiogestionedati@ingv.it
http://www.ingv.it
owner
Universita\' degli Studi Roma Tre
http://www.uniroma3.it/
owner
University of Perugia (UniPG)
https://www.unipg.it/
owner
King Abdullah University for Science and Technology (KAUST)
https://www.kaust.edu.sa/en
owner
GFZ Data Services
http://dataservices.gfz-potsdam.de/
resourceProvider
GFZ Data Services
http://dataservices.gfz-potsdam.de/
publisher
Trippanera, Daniele
King Abdullah University for Science and Technology (KAUST)
daniele.trippanera@ingv.it
https://orcid.org/0000-0002-7028-3566
ORCID
author
Winkler, Aldo
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
aldo.winkler@ingv.it
https://orcid.org/0000-0002-0653-0059
ORCID
author
Sagnotti, Leonardo
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
leonardo.sagnotti@ingv.it
https://orcid.org/0000-0003-3944-201X
ORCID
author
Nazzareni, Sabrina
University of Perugia (UniPG)
https://orcid.org/0000-0002-1548-3119
ORCID
author
Acocella, Valerio
Roma Tre University (UniRoma3)
https://orcid.org/0000-0002-1258-9401
ORCID
author
Porreca, Massimiliano
University of Perugia (UniPG)
https://orcid.org/0000-0001-8628-606X
ORCID
author
ingv:https://doi.org/10.5880/fidgeo.2020.026
This dataset contains supplementary materials to the manuscripts “Interpreting inverse magnetic fabric in Miocene dikes from Eastern Iceland” by Trippanera et al., (submitted to JGR) and “Anatomy of an extinct magmatic system along a divergent plate boundary: Alftafjordur, Iceland” by Urbani et al. 2015. These works present an extensive multi-scale and multi-disciplinary study focused on the magnetic fabric of dikes belonging to the Alftafjordur volcanic system in Eastern Iceland. Eastern Iceland is one of the most suitable places to analyze the roots of the volcanic systems that are composed of central volcanoes and fissure swarms. We sampled 19 NNE-SSW oriented dikes (for a total of 383 samples) belonging to the exhumed fissure swarm portion of Alftafjordur volcanic system, aiming at understanding the direction of magma propagation in the swarm by using Anisotropy of Magnetic Susceptibility (AMS) analysis. However, most of the samples (80% out of the measured cores) show an inverse geometric magnetic fabric (kmax is perpendicular to the dike margins and sub-horizontal)- therefore the study of the flow direction is complicated. Nevertheless, this result poses the problem of why the geometrically inverse fabric is present and widespread in the whole dike swarm. In order to understand the origin of this inverse fabric, besides standard AMS measurements, we also performed additional analysis such as different field and temperature AMS, Anisotropy of Anhystheretic Remanent Magnetization (AARM), Hysteresis loops and First-order reversal curves (FORC), Scanning Electron Microscope (SEM) and Optic microscope images analysis. This dataset includes the following materials: • Location of the sampled sites (.kml) • AMS measurements at room temperature by using H=300 A/m for all samples (.ran) • AMS measurements at room temperature by using H=200 A/m and H=600 A/m for selected samples (.ran) • AMS measurements at different temperature (from 20 to 580 ℃) for selected samples (.ran) • AARM measurements for selected samples (.ran) • DayPlots data for selected samples (.xls or .csv) • SEM and Optical microscope images of thin sections of selected samples. AMS and AARM data can be opened through Anisoft open-source software provided by Agico (Chadima and Jelinek, 2009; https://www.agico.com/text/software/anisoft/anisoft.php). Data have been acquired at: Roma Tre University (Rome, Italy), Istuto di Geofisica e Vulcanologia (INGV, Rome, Italy) and Laboratoire des Sciences du Climat et de l\'Environnement, CEA, CNRS, UVSQ (Gif-sur-Yvette Cedex, France). For the interpretation of the data refer to Urbani et al., 2015 and Trippanera et al., (submitted). The description of each dataset is provided in the description file.
completed
Sagnotti, Leonardo
Istituto Nazionale di Geofisica e Vulcanologia - INGV
leonardo.sagnotti@ingv.it
https://orcid.org/0000-0003-3944-201X
ORCID
pointOfContact
notPlanned
https://data.ingv.it/dataset/cover/582.jpg
thumbnail
image/jpeg
EU
open data
dike
dike swarm
volcanic system
Alftafjordur
Iceland
intrusion
magnetite
Anisotropy of Magnetic Susceptibility
AMS
AARM
divergent margin
EPOS
European Plate Observing System
multi-scale laboratories
paleomagnetic and magnetic data
compound material > rock > igneous rock > basic igneous rock > basalt
Density
earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting
EARTH SCIENCE > SOLID EARTH > TECTONICS
EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > MAGMA COMPOSITION/TEXTURE
Fracture toughness
Gelatine > Pig skin
Generic camera
Glass/Plexiglas box > Glass/Plexiglas box (cm scale)
Intrusive
Laboratory
magmatic process > intrusion
magnetic suzeptibility > anisotropy
magnetic suzeptibility > bulk
sill
Water
Yield stress
Young modulus
theme
otherRestrictions
Creative Commons Attribution 4.0 International (CC BY 4.0)
otherRestrictions
no limitations to public access
http://publications.europa.eu/resource/authority/licence/CC_BY
unclassified
1000
eng
utf8
Alftafjordur volcanic system
-14.86
-14.09
64.39
64.85
GFZ Data Services
http://dataservices.gfz-potsdam.de/
distributor
https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=escidoc:5189889
WWW:LINK-1.0-http--link
other
homepage
accessPoint
dataset
m
1
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
2010-12-08
Publication
This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services
true
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