Citation:

PANGAEA.996053 (DOI registration in progress)

Name: Global dataset of effective fracture porosity and fracture density estimated from crystalline rock permeability, as a function of depth
Published: 2026-07-22
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Depth; fracture density; permeability; porosity

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Published: 2026-07-22

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Abstract:

This dataset compiles measurements of permeability in crystalline rocks from two papers (Achtziger-Zupančič et al., 2017; Kuang & Jiao, 2014), providing a comprehensive database with 27,966 datapoints that covers different geological settings. We estimate effective fracture porosity and fracture density using permeability, aperture, and a roughness factor. The dataset is designed to support analyses of the relationship between hydraulic and petrophysical properties and depth, as well as the statistical distribution of these properties in low-permeability crystalline environments. Particular emphasis is placed on the strong variability and skewness of porosity and permeability values observed across datasets.

Keyword(s):

Depth; fracture density; permeability; porosity

References:

Achtziger-Zupančič, Peter; Loew, Simon; Mariéthoz, G (2017): A new global database to improve predictions of permeability distribution in crystalline rocks at site scale. Journal of Geophysical Research: Solid Earth, 122(5), 3513-3539, https://doi.org/10.1002/2017JB014106

Kuang, Xingxing; Jiao, Jiu Jimmy (2014): An integrated permeability‐depth model for Earth's crust. Geophysical Research Letters, 41(21), 7539-7545, https://doi.org/10.1002/2014GL061999

Coverage:

Median Latitude: 52.554537 * Median Longitude: 15.635248 * South-bound Latitude: -45.490000 * West-bound Longitude: -123.540000 * North-bound Latitude: 68.020000 * East-bound Longitude: 169.670000

Minimum DEPTH, sediment/rock: 0.5 m * Maximum DEPTH, sediment/rock: 35650.0 m

Event(s):

Aimores * Latitude: -19.500000 * Longitude: -41.020000 * Method/Device: Field sampling (FIELD)

Alegria * Latitude: -20.190000 * Longitude: -43.510000 * Method/Device: Field sampling (FIELD)

Alto_Garcia * Latitude: -26.870000 * Longitude: -48.790000 * Method/Device: Field sampling (FIELD)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		van den Berg, Josse Maria
2	Sample ID	Sample ID		van den Berg, Josse Maria
3	Site	Site		van den Berg, Josse Maria
4	LATITUDE	Latitude		van den Berg, Josse Maria	Geocode
5	LONGITUDE	Longitude		van den Berg, Josse Maria	Geocode
6	Country	Country		van den Berg, Josse Maria
7	DEPTH, sediment/rock	Depth sed	m	van den Berg, Josse Maria	Geocode
8	Permeability (earth science)	k	10^-12 m²	van den Berg, Josse Maria
9	Method comment	Method comm		van den Berg, Josse Maria	Test method
10	Porosity	Poros	%	van den Berg, Josse Maria
11	Fracture density	Frac dens	1/m	van den Berg, Josse Maria
12	Reference/source	Reference		van den Berg, Josse Maria

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

222852 data points

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