cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5880/gfz.2.3.2018.001
title: Preliminary minute mean values of geomagnetic observatory Villa Remedios, Bolivia, for January 2013

description: The dataset contains minute mean values of the geomagnetic field expressed as northward component X, eastward component Y, and vertical (downward) component Z as measured at the geomagnetic observatory Villa Remedios, Bolivia, for January 2013. 
      
Villa Remedios (preliminary code VRE) is operated in cooperation by the university Universidad Mayor de San Andrés in La Paz, Bolivia, and GFZ German Research Centre for Geosciences since the end of 2002. The observatory is not yet an INTERMAGNET observatory and so far, no data has been submitted to any World Data Centre for Geomagnetism. However, preliminary geomagnetic data (minute means) from Villa Remedios are available upon request from GFZ. Please note that a dataset based on the data provided here will be submitted to the WDC for Geomagnetism at a later stage and might differ slightly due to calibration and removal of outliers.
      
Villa Remedios is located about 650 km south of the magnetic equator and about 930 km south-east of the geomagnetic observatory Huancayo (IAGA code HUA, Peru). This makes VRE a suitable observatory to be used in conjunction with HUA to isolate and study the equatorial electrojet signal at Huancayo.
      
The data file is in ASCII format and contains blank-separated the year (YYYY), the month (MM), the day (DD), the time (UTC) in the format hh.mm, the X component in nanotesla (nT), the Y component in nT, the vertical component Z in nT, the total geomagnetic field F in nT measured with an independent, auxiliary scalar magnetometer, and, finally, the difference (in nT) between F measured with the auxiliary scalar magnetometer and the total field calculated from the components X, Y and Z. Components X, Y and Z are measured with an FGE variometer (serial number S0199, E0213 built by DTU Space, Technical University of Denmark) and in this data file, they are preliminarily calibrated and given in nanotesla (nT). These values are minute means and filtered from spot readings by an INTERMAGNET Gauss-shaped filter. The scalar magnetometer is a GSM90F1 by Gemsys, Canada. The data logger is a Flare+ by British Geological Survey.
      
Geomagnetic observatories are described in e.g. Jankowski and Sucksdorf (1996), in Matzka et al., (2010) and Matzka (2016).
DOI: 10.5880/fidgeo.2019.021
title: Dataset for the influence of water content and temperature on electrification in rapid decompression experiments

description: This data publication provides data from 42 experiments from 2018 and 2019 in the Fragmentation Lab at the Ludwig-Maximilians University Munich (Germany). The experiments were taken out to analyse the influence of the water content and the initial temperature of the pre-experimental sample on the produced electrification in rapid decompression, shock-tube experiments. All samples used in this study are 90-300 μm loose ash samples from the lower Laacher See unit. To carry out this study, we have built up on previous studies by Cimarelli et al. (2014) and Gaudin & Cimarelli (2019b, dataset to be found in Gaudin & Cimarelli, 2019a). A sample of loose ash gets placed in an autoclave. In our study, we have added water in some experiments. Also, a furnace was often used to heat the sample to up to 320 °C. After both water addition and heating, the autoclave gets pressurized using argon gas. Once a target pressure of 9 MPa is reached, the experiment gets triggered by rupturing metal diaphragms, which rapid decompresses the sample and ejects it into a collector tank. This collector tank is made out of steel and electrically insulated from its surrounding, thus working as a Faraday cage (FC), which is able to detect the net charge within at any point during the experiment. We detect discharges on that net charge up to 10 ms after the ejection of the particles.This dataset contains: - an overview .xlsx file (ExperimentOverview) containing key information for the 42 experiments used for analysis in this study- raw .csv files for all experiments- .pdf files showing the key elements of the analysed experiments, incl. data from Faraday cage and pressure sensors For more information please refer to the data description and the associated publication (Stern et al., 2019).
DOI: 10.5880/fidgeo.2021.007
title: Analysis of Detections by the Earthquake Network App between 2017-12-15 and 2020-01-31

description: The 'Earthquake Network’ (EQN) is an app which detects earthquakes by creating an ad-hoc network of smartphones' accelerometer sensors and provides early warnings for earthquakes via the same smartphone app. Detections are not due to individual smartphone measurements but due to near-simultaneous trigger signals from clusters of smartphones running the app. Therefore detections are normally located in the closest populated regions to an earthquake's epicentre. These datasets compare sets of detections with the earthquake parameters published by seismic institutes in order to analyse the performance of the EQN network. One dataset contains 550 detections made by EQN between 2017-12-15 and 2020-01-31 in Chile, USA and Italy. Wherever possible, each detection was associated with an earthquake from the parameter catalogue of each country's seismic institute (CSN for Chile, USGS for USA and INGV for Italy). Associations were carried out automatically but also checked manually. The other dataset contains 134 detections from around the world that could be associated to earthquakes with magnitude ≥ M5 or magnitude ≥ M4.5 in Italy and the USA. There are 68 detections that are common to the first dataset. All detections were associated to parameters from the the USGS earthquake parameter catalogue for consistency.
description: Earthquake parameters were retrieved from the seismic institutes via the FDSN protocol. The two datasets are encoded in csv files using ',' delimiters and with headers on the first row. Additional material is included to explain the contents of each column.
description: 2021_xxxx_steed-et-al_D1_usa_chl_ita.csv 2021_xxxx_steed-et-al_D2_mag_gt_4.5.csv
DOI: 10.5880/gfz.4.3.2020.003
title: TERENO Monitoring data from Lake Tiefer See and Lake Czechowskie (2012-2017)

description: This dataset resulted from a parallel monitoring at two lakes, Lake Tiefer See (near Klocksin, TSK; 53° 35.5’ N, 12° 31.8’ E; 62 masl; N Germany) and Lake Czechowskie (Jezioro Czechowskie, JC; 53° 52.4’ N, 18° 14.3’ E; 108 masl; N Poland), and includes four different type of data for both locations: (i) sediment cores microfacies data, (ii) sediment fluxes and composition, (iii) selected water column data, and (iv) selected meteorological information obtained on site. This dual lake monitoring set-up was established in 2012 with the aim to investigate seasonal sedimentation and varve forming processes in detail. The datasets are provided in individual *.csv files, per type of data and per lake. The thin section data from surface sediment cores comprises the thicknesses of the most recent calcite varves’ sub-layers: spring diatom sub-layer, summer calcite sub-layer, and autumn/winter re-suspension sub-layer. The sediment flux data was obtained from sediment traps located in different water depths (epi- and hypolimnion), and the sediment composition is given by the fluxes of total organic carbon (TOC), calcium carbonate (as calculated from total inorganic carbon; TIC), and diatoms & inorganic matter. The water column data comprises water temperature from stationary loggers, and dissolved oxygen measured in ~ 1 meter depth-resolution. The meteorological data includes daily averages of air temperature and mean wind-speed, and summed daily rainfall. Further details about the sampling and analytical methods, data acquisition, and processing are given in Roeser et al. (2021; http://doi.org/10.1111/bor.12506).
DOI: 10.5880/gfz.4.1.2019.005
title: Supplement to “Synchronization of great subduction megathrust earthquakes: Insights from scale model analysis”

description: This data set provides data from subduction zone earthquake experiments and analysis described in Rosenau et al. (2019). In the experiments analogue seismotectonic scale models of subduction zones characterized by two seismogenic asperities are used to study the interaction of asperities over multiple seismic cycles by means of static (Coulomb failure) stress transfer. Various asperity geometries (lateral/along-strike of the subduction zone distance and vertical/across-strike of the subduction zone offset) are tested on their effect on recurrence pattern of simulated great (M8+) earthquakes.
      The results demonstrate the role of stress coupling in the synchronization of asperities leading to multi-asperity M9+ events in nature. The data set contains time series of experimental surface velocities from which analogue earthquakes are detected and classified into synchronized events and solo events. The latter are subcategorized into main events and aftershocks and into normal and thrust events. An analogue earthquake catalogue lists all categorized events of the 12 experiments used for statistical analysis. Moreover, results from elastic dislocation modelling aimed ate quantifying the stress coupling between the asperities for the various geometries are summarized. Basic statistics of classified events (e.g. percentage of categorized events, coefficient of variation in size and recurrence time etc.) are documented. Matlab scripts are provided to visualize the data as in the paper.
DOI: 10.5281/zenodo.17839041
title: Supporting data for Petit-Marty et al. 2025. Genomic patterns and levels of genetic diversity reveal recent declines in the effective size of European hake populations. ICES JMS.

description: Analysed datasets supporting the results of Petit-Marty et al. 2025. Genomic patterns and levels of genetic diversity reveal recent declines in the effective size of European hake populations. ICES JMS.

Analysed samples file lists:

all_hake.filelist

all_hake_nokin.filelist (used in Admixture and PCA analyses)

Variant call files (VCF) for all individuals of the three analysed populations of European hake:

File hake_pops_combined_nomiss.vcf: SNP calling was performed with no missing data, --minDP 10,   --minQ 20 and minimun MAF for each population. Then, population's vcfs were combined.

File all_pop_calls_unfiltered.vcf.gz : unfiltered SNP calls.

Genetic diversity anallysis

.sfs files: SFS each population (first column correspond to invariant sites. SFS is folded)

.saf files : site allele frequency

.theta files: genetic diversity estimates

Admixture analysis:

Admix_3pophake_nokin_nomiss.mafs.gz

Admix_3pophake_nokin_nomiss.beagle.gz

PCA:

PCA_3pop_hake_nokin_nomiss.geno.gz

PCA_3pop_hake_nokin_nomiss.mafs.gz

The reference genome for these dataset can be found at https://www.ncbi.nlm.nih.gov/datasets/genome/GCA_964660975.1/

Raw reads data have been deposited at NCBI SRA databse with ID PRJNA1329964

contact: nataliapetit2@gmail.com
DOI: 10.5281/zenodo.17839042
title: Supporting data for Petit-Marty et al. 2025. Genomic patterns and levels of genetic diversity reveal recent declines in the effective size of European hake populations. ICES JMS.

description: Analysed datasets supporting the results of Petit-Marty et al. 2025. Genomic patterns and levels of genetic diversity reveal recent declines in the effective size of European hake populations. ICES JMS.

Analysed samples file lists:

all_hake.filelist

all_hake_nokin.filelist (used in Admixture and PCA analyses)

Variant call files (VCF) for all individuals of the three analysed populations of European hake:

File hake_pops_combined_nomiss.vcf: SNP calling was performed with no missing data, --minDP 10,   --minQ 20 and minimun MAF for each population. Then, population's vcfs were combined.

File all_pop_calls_unfiltered.vcf.gz : unfiltered SNP calls.

Genetic diversity anallysis

.sfs files: SFS each population (first column correspond to invariant sites. SFS is folded)

.saf files : site allele frequency

.theta files: genetic diversity estimates

Admixture analysis:

Admix_3pophake_nokin_nomiss.mafs.gz

Admix_3pophake_nokin_nomiss.beagle.gz

PCA:

PCA_3pop_hake_nokin_nomiss.geno.gz

PCA_3pop_hake_nokin_nomiss.mafs.gz

The reference genome for these dataset can be found at https://www.ncbi.nlm.nih.gov/datasets/genome/GCA_964660975.1/

Raw reads data have been deposited at NCBI SRA databse with ID PRJNA1329964

contact: nataliapetit2@gmail.com
DOI: 10.5880/fidgeo.2022.013
title: Experimental data of analogue models addressing the influence of oblique convergence and inheritance on sliver tectonics

description: This dataset includes video sequences depicting the evolution in map view and lateral view of 7 analogue experiments studying mantle-scale subduction systems. The experiments are performed under a natural gravity field and are designed to understand the role of convergence obliquity on upper plate deformation and partitioning, with a particular emphasis on the role played by lithospheric inherited structures on the development of sliver tectonics. All experiments were performed at the Laboratory of Tectonic modelling of the University of Rennes 1 (France). The experimental set-up corresponds to a lithosphere and sub-lithospheric upper mantle system. The lithospheric plates are simulated with PDMS silicone (Polydimethylsiloxane Silicone) with different viscosities and densities, and the upper mantle with glucose syrup. In particular, for the overriding plate, we simulate the presence of a weaker volcanic arc that can eventually be decoupled from the forearc by a pre-existing discontinuity. The materials are placed into a Plexiglas tank, where the impermeable bottom of the tank represents the 660 km discontinuity. The subduction is initiated by manually forcing the slab into the mantle and it then evolves under the combined effects of internal buoyancy forces (slab pull) and external boundary forces. The subducting plate is pushed toward the trench at a constant velocity of 1.5 cm/min while the overriding plate is maintained fixed during the duration of the experiments. The evolution of the experiments is monitored by DSLR cameras (24 Mpx) taking pictures every 30 seconds at the top and on one side of the experiments. Pictures are then assembled into video-sequences. The scale bar, with black & white rectangles corresponds to 10 cm. The set of experiments consists of one reference model (MODEL-01) with orthogonal convergence, and six models with oblique convergence (Table 1). Among these models, three do not embed a pre-existing lithospheric discontinuity in the overriding plate (MODEL-02, MODEL-03, and MODEL-04) while the three other (MODEL-05, MODEL-06, and MODEL-07) have such a discontinuity. For the models with oblique convergence, we vary the angle between the convergence direction and the trench from 80° (MODEL-02 and MODEL-05) to 60° (MODEL-03 and MODEL-06) and 50° (MODEL-04 and MODEL-07). For details on the experimental set-up, and interpretation of the results, please refer to Suárez et al. (submitted to Tectonophysics) to which these data are supplementary material.
DOI: 10.5880/gfz.4.2.2019.002
title: Earthquake catalogs related to "Analysis of microseismicity framing M &gt;2.5 earthquakes at The Geysers geothermal field, California"

description: Preparatory mechanisms accompanying or leading to nucleation of larger earthquakes have been observed at both laboratory and field scale, but the precise conditions favoring extended nucleation processes are still largely unknown. In particular, it remains a matter of debate why earthquakes often occur spontaneously without noticeable precursors as opposed to an extended failure process accompanied by foreshocks. In this study, we have generated new high-resolution seismicity catalogs framing the occurrence of 20 ML &gt; 2.5 earthquakes at The Geysers geothermal field in California. To this end, a seismicity catalog of the 11 days framing each large event was created. We selected 20 sequences in total from different tectonic settings within the field that sample the entire reservoir depth range and temporal periods with high or low injection rates. Seismic activity and magnitude frequency distributions displayed by the different earthquake sequences are correlated with their location within the reservoir. Sequences located in the northwestern part of the reservoir show overall increased seismic activity and low b-values, while the southeastern part is dominated by decreased seismic activity and higher b-values. Periods of high injection coincide with high b-values, and vice versa. These observations potentially reflect differential stresses and damage varying across the field. About 50 % of analyzed sequences exhibit no change in seismicity rate in response to the large main event. Instead, we find complex waveforms at the onset of the main earthquake, suggesting that small ruptures spontaneously grow into or trigger larger events.
description: Earthquake catalogs belonging to each of the 20 mainshock sequences. The catalogue is provided in tabular form (ASCII). The file names indate the NCEDC ID of the EQ Sequence mainshock (NCEDC = Northern California earthquake datacenter, Enhanced Geothermal Systems Earthquake Catalog, https://ncedc.org/egs/catalog-search.html). Definition of columns in the data tables (also in the header of the data): - X,Y are in local cartesian coordinates (m) [unlocated events are indicated by NaN]- Z (m) is in depth, negative values point downwards- Coordinate origin in Lat;Lon: 38.8042;-122.7822- dt refers to matlab serial time (i.e. the number of days from January 0, 0000, fractions of days are given as decimal digits)- Ml is local magnitude
DOI: 10.5880/fidgeo.2019.003
title: Supplement to: Graben formation and dike arrest during the 2009 Harrat Lunayyir dike intrusion in Saudi Arabia: Insights from InSAR, stress calculations and analog experiments

description: This dataset is supplementary material to the article by Xu et al. (2016) ‘Graben formation and dike arrest during the 2009 Harrat Lunayyir dike intrusion in Saudi Arabia: Insights from InSAR, stress calculations and analog experiments’. The Authors described the spatial and temporal effects of a propagating dike on crustal deformation, including the interaction with faulting, using a multidisciplinary approach. This supplementary material concerns the analog modelling part only. For a detailed description of the experimental procedure, set-up and materials used, please refer to the article of Xu et al. (2016; paragraph 5).
      The data available in this supplementary publication are:
      - A folder (2019-003_Corbi-et-al_Fig6.zip) containing: 1. top-view pictures (e.g. ‘lunayyr1_0025.JPG’) and displacement data obtained with MatPiv (e.g. ‘uun25.mat’ and ‘uvn25.mat’; dike parallel and orthogonal components; respectively) shown in figure 6 of Xu et al 2016. 2. a Matlab script (‘fig6_a_h.m’) that allows reproducing the same figure setup as in figure 6 panels a-h of Xu et al 2016. The thick red line highlights dike position. The background shading refers to dike orthogonal displacement.
      - A folder (2019-003_Corbi-et-al_PIV_data.zip) containing: 1. surface deformation data obtained with MatPiv. Each file (‘vel_fine_piv#.mat’) contains 4 elements (x, y, u, v) representing the coordinates and horizontal and vertical component of incremental velocity field organized in a 143 x 215 matrix; 2. the run_movie.m Matlab script. Running it the user can visualize the space-time evolution of cumulative surface displacement. The background shading refers to dike orthogonal component of displacement. The thick red line highlights dike position.
      - A folder (2019-003_Corbi-et-al_pictures.zip) containing the whole set of pictures from the experiment shown in Xu et al., 2016.
      - A movie (2019-003_Corbi-et-al_graben formation.mp4) obtained using the whole set of pictures (96 photos). The thick red line highlights dike position. The amount of dike opening is reported as header.
      - A movie (2019-003_Corbi-et-al_cum_displacement.mp4) showing the space-time evolution of cumulative surface displacement, where the background shading refers to dike orthogonal component of displacement. The thick red line highlights dike position.
DOI: 10.5880/gfz.4.2.2020.005
title: OSG Logging Data - Lake Junín Drilling Project, Perú - 22-JUL-18-AUG-2015

description: The Lake Junín Drilling Project, co-funded by the International Continental Scientific Drilling Program, ICDP, aims to provide a continuous paleoclimate record from lacustrine sediments, and to reconstruct the history of the continental records covering the glacial-interglacial cycles spanning more than 500 kyr. Lake Junín, also known as Chinchaycocha, is a shallow (maximum water depth of 12 m), inter-mountain high-elevation (at 4100 m a.s.l.) lake in the inner-tropics of the Southern Hemisphere that spans 300 km2 in the tropical Andes of Peru. Drill cores were recovered during summer 2015 from three drill sites on the lake. After the completion of coring operations in each hole, downhole logging measurements were performed in five of the 11 boreholes (1A, 1C, 1D, 2A and 3B) by the Operational Support Group of ICDP at GFZ Potsdam (OSG). The OSG logging data from Lake Junín Drilling Project is given here in three data formats. For each of the five boreholes all processed logging data are comprised in one composite logging data set, this set is given here both in ASCII text and in WellCAD format. Additionally, the raw sonic waveform data are in LIS format: • Composite logging data in ASCII text files (.txt) • Composite logging data in WellCAD format (.wcl) • Sonic raw data (waveforms) in LIS format (.lis) Detailed description is provided in the associated data description file.