Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland
Abstract 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 Urban...
Main Authors: | , , , , , , , |
---|---|
Other Authors: | , , |
Format: | Dataset |
Language: | unknown |
Published: |
GFZ Data Services
2020
|
Subjects: | |
Online Access: | https://doi.org/10.5880/fidgeo.2020.026 |
id |
ftgfzpotsdamdata:oai:doidb.wdc-terra.org:6953 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdamdata |
language |
unknown |
topic |
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 |
spellingShingle |
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 Trippanera, Daniele Urbani, Stefano Kissel, Catherine Winkler, Aldo Sagnotti, Leonardo Nazzareni, Sabrina Acocella, Valerio Porreca, Massimiliano Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland |
topic_facet |
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 |
description |
Abstract 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. |
author2 |
Trippanera, Daniele Urbani, Stefano Kissel, Catherine Winkler, Aldo Sagnotti, Leonardo Nazzareni, Sabrina Acocella, Valerio Porreca, Massimiliano Laboratoire des Sciences du Climat et de l'Environnement Paleomagnetic Laboratory (Università di Roma TRE, Italy) Paleomagnetic Laboratory (INGV, Italy) |
format |
Dataset |
author |
Trippanera, Daniele Urbani, Stefano Kissel, Catherine Winkler, Aldo Sagnotti, Leonardo Nazzareni, Sabrina Acocella, Valerio Porreca, Massimiliano |
author_facet |
Trippanera, Daniele Urbani, Stefano Kissel, Catherine Winkler, Aldo Sagnotti, Leonardo Nazzareni, Sabrina Acocella, Valerio Porreca, Massimiliano |
author_sort |
Trippanera, Daniele |
title |
Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland |
title_short |
Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland |
title_full |
Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland |
title_fullStr |
Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland |
title_full_unstemmed |
Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland |
title_sort |
magnetic susceptibility and thin sections data from the the alftafjordur volcanic system in eastern iceland |
publisher |
GFZ Data Services |
publishDate |
2020 |
url |
https://doi.org/10.5880/fidgeo.2020.026 |
op_coverage |
Alftafjordur volcanic system -14.8557 -14.0921 64.3933 64.8523 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
doi:10.1029/2020JB020306 doi:10.1002/2015GL065087 doi:10.1016/0031-9201(77)90108-X url:http://hdl.handle.net/11104/0163273 http://dx.doi.org/10.5880/fidgeo.2020.026 doi:10.5880/fidgeo.2020.026 |
op_rights |
CC BY 4.0 http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5880/fidgeo.2020.026 https://doi.org/10.1029/2020JB020306 https://doi.org/10.1002/2015GL065087 https://doi.org/10.1016/0031-9201(77)90108-X |
_version_ |
1766037335224352768 |
spelling |
ftgfzpotsdamdata:oai:doidb.wdc-terra.org:6953 2023-05-15T16:47:15+02:00 Magnetic susceptibility and thin sections data from the the Alftafjordur volcanic system in Eastern Iceland Trippanera, Daniele Urbani, Stefano Kissel, Catherine Winkler, Aldo Sagnotti, Leonardo Nazzareni, Sabrina Acocella, Valerio Porreca, Massimiliano Trippanera, Daniele Urbani, Stefano Kissel, Catherine Winkler, Aldo Sagnotti, Leonardo Nazzareni, Sabrina Acocella, Valerio Porreca, Massimiliano Laboratoire des Sciences du Climat et de l'Environnement Paleomagnetic Laboratory (Università di Roma TRE, Italy) Paleomagnetic Laboratory (INGV, Italy) Alftafjordur volcanic system -14.8557 -14.0921 64.3933 64.8523 2020 https://doi.org/10.5880/fidgeo.2020.026 unknown GFZ Data Services doi:10.1029/2020JB020306 doi:10.1002/2015GL065087 doi:10.1016/0031-9201(77)90108-X url:http://hdl.handle.net/11104/0163273 http://dx.doi.org/10.5880/fidgeo.2020.026 doi:10.5880/fidgeo.2020.026 CC BY 4.0 http://creativecommons.org/licenses/by/4.0/ CC-BY 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 Dataset 2020 ftgfzpotsdamdata https://doi.org/10.5880/fidgeo.2020.026 https://doi.org/10.1029/2020JB020306 https://doi.org/10.1002/2015GL065087 https://doi.org/10.1016/0031-9201(77)90108-X 2022-03-10T11:14:43Z Abstract 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. Dataset Iceland GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |