Geochemical characterisation of San Andreas Fault damage zone rock at Lake Hughes and Littlerock localities
type: Dataset
description: Geochemical and petrophysical data acquired on intact and damage zone rock samples for two localities along the San Andreas Fault, Mojave section. Data used in the publication entitled "Chemically altered Pulverized granite along the Mojave section of the SAF shows evidence for large-scale heat transfer by post-seismic fluid flow and fluid overpressure at depth" by F.M Aben et al., in revision at the journal Geochemistry, Geophysics, Geosystems. Rock samples (33 samples at Lake Hughes locality, 27 at Littlerock locality) were analysed for porosity, grain- and bulk density, and chemical composition (XRF analysis). Mineral content was established from point counting on thin sections for 9 samples (Littlerock locality) and 13 samples (Lake Hughes locality). The results of these analyses are presented in this dataset. In addition, the samples were grouped in three categories: intact, damaged, and pulverized. Statistical analysis was performed on the grouped data to identify statistically significant changes between the groups. The statistical analysis results are presented here as well.
issued: 2025-06-23T22:05:48.839382
modified: 2026-07-30T20:20:17.909940
spatial: Location
  geometry: {"type": "Polygon", "coordinates": [[[-118.0000, 34.5000], [-118.5300, 34.5000], [-118.5300, 34.7000], [-118.0000, 34.7000], [-118.0000, 34.5000]]]}
keyword: NERC_DDC
keyword: Porosity
keyword: X ray fluorescence spectroscopy

Data
type: Distribution
description: Resource locator
issued: 2026-07-30T20:20:17.948336
modified: 2026-07-30T20:20:17.914786
access URL: https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item182134

Citation Information - Digital Object Identifier (DOI)
type: Distribution
description: Aben, F., Farrington, K., Galvan Sanchez, B., Mitchell, T.M., Miller, S.A., Rockwell, T.K., Girty, G.H., Ostermeijer, G., Wechsler, N. (2023). Geochemical characterisation of San Andreas Fault damage zone rock at Lake Hughes and Littlerock localities. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/6b63e276-2f65-4300-98fa-9f35fb118e32
issued: 2026-07-30T20:20:17.948338
modified: 2026-07-30T20:20:17.914863
access URL: https://doi.org/10.5285/6b63e276-2f65-4300-98fa-9f35fb118e32

British Geological Survey (BGS)
type: Organization