17 Aug 2022
17 Aug 2022
Status: a revised version of this preprint is currently under review for the journal ESSD.

Valgarður: A Database of the Petrophysical, Mineralogical, and Chemical Properties of Icelandic Rocks

Samuel Warren Scott1,2, Léa Lévy3,4, Cari Covell1, Hjalti Franzson3, Benoit Gibert5, Ágúst Valfells1, Juliet Newson1, Julia Frolova6, Egill Júlíusson7, and María Sigríður Guðjónsdóttir1 Samuel Warren Scott et al.
  • 1Department of Engineering, Reykjavik University, Reykjavik, 101, Iceland
  • 2Institute of Earth Sciences, University of Iceland, Reykjavik, 101, Iceland
  • 3Iceland Geosurvey, Reykjavik, 101, Iceland
  • 4Faculty of Engineering, Lund University, Lund, 223 63, Sweden
  • 5Department of Geosciences, University of Montpellier, Montpellier, 34095, France
  • 6Faculty of Geology, Lomonosov Moscow State University, Moscow, Russia
  • 7Landsvirkjun, Reykjavik, 103, Iceland

Abstract. The Valgarður database is a compilation of data describing the physical and geochemical properties of Icelandic rocks. The dataset comprises 1072 samples obtained from fossil and active geothermal systems, as well as relatively fresh volcanic rocks erupted in sub-aerial or sub-aqueous environments. The database includes petrophysical properties (effective and total porosity, grain density, permeability, electrical resistivity, acoustic velocities), as well as mineralogical and geochemical data obtained by point-counting, X-ray Fluorescence (XRF), quantitative X-ray Diffraction (XRD), and Cation Exchange Capacity (CEC) analyses. The motivation behind this database is threefold: (i) aid in the interpretation of geophysical data including uncertainty estimations, (ii) facilitate the parameterization of numerical reservoir models, and (iii) improve our understanding of the relationship between rock type, hydrothermal alteration and petrophysical properties.

Samuel Warren Scott et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2022-279', Anonymous Referee #1, 15 Sep 2022
    • AC1: 'Reply on RC1', Samuel Scott, 05 Oct 2022
  • RC2: 'Comment on essd-2022-279', Anonymous Referee #2, 17 Sep 2022
    • AC2: 'Reply on RC2', Samuel Scott, 05 Oct 2022

Samuel Warren Scott et al.

Data sets

Valgarður: A Database of the Petrophysical, Mineralogical, and Chemical Properties of Icelandic Rocks Scott, Samuel Warren, Lévy, Léa, Covell, Cari, Franzson, Hjalti, Gibert, Benoit, Valfells, Ágúst, Newson, Juliet, Frolova, Julia, & Guðjónsdóttir, María Sigríður

Samuel Warren Scott et al.


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Short summary
Rock properties such as porosity and permeability play an important role in many geological processes. The Valgarður database is a compilation of petrophysical, geochemical and mineralogical observations on more than 1000 Icelandic rock samples. In addition to helping constrain numerical models and geophysical inversions, this data can be used to better understand the interrelationship between lithology, hydrothermal alteration, and petrophysical properties.