cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/gfz.sddb.1350
title: Permeability of Mini Cores of the KTB Pilot Hole VB1: Instationary Measurements

description: In the KTB field laboratory, porosity, internal surface and permeability were determined on identical mini cores with 25.4 mm in diameter and approximately 50 mm in length. These samples were drilled either axial or radial with respect to the drill core, or parallel or perpendicular with respect to the foliation. In the KTB field laboratory, the stationary sArcy method was used with nitrogen gas as the streaming medium. The measurements were made at a constant confining pressure of 5 MPa to 6.5 MPa. The nitrogen pressure gradient was up to 2 MPa at the inflow side minus atmospheric pressure at the outflow side of the sample. Because of the low pore pressures during the measurements (max 2 MPa) the data had to be corrected for the effect of gas friction along the matrix wall, the so called Klinkenberg effect (Huenges et al. 1990). Further details, regarding equipment and evaluation are given by Pusch et al. (1986).
DOI: 10.1594/gfz.sddb.1355
title: Permeability of Mini Cores of the KTB Main Hole HB1g

description: In the KTB field laboratory, porosity, internal surface and permeability were determined on identical mini cores with 25.4 mm in diameter and approximately 50 mm in length. These samples were drilled either axial or radial with respect to the drill core, or parallel or perpendicular with respect to the foliation. In the KTB field laboratory, the stationary sArcy method was used with nitrogen gas as the streaming medium. The measurements were made at a constant confining pressure of 5 MPa to 6.5 MPa. The nitrogen pressure gradient was up to 2 MPa at the inflow side minus atmospheric pressure at the outflow side of the sample. Because of the low pore pressures during the measurements (max 2 MPa) the data had to be corrected for the effect of gas friction along the matrix wall, the so called Klinkenberg effect (Huenges et al. 1990). Further details, regarding equipment and evaluation are given by Pusch et al. (1986).
DOI: 10.1594/gfz.sddb.1356
title: Porosity of Mini Cores (Plugs) of the KTB Pilot Hole VB1

description: The porosity was determined using the most common Archimedian method (Schopper, 1982). It is based on the following three weight determinations of the sample:
 (1) The samples were dried for approximately 100 hours at 80 °C in an oven until the sample weight remains constant. The pore space is filled with air.
 (2) The samples were saturated, i.e. the pore space was completely filled with destilled water. Therefore, at room temperature and under vacuum the samples were submerged in destilled water for at least 24 hours. Afterwards atmospheric pressure was applied for at least 24 hours to let the water invade into the sample. The sample was taken from the water and the fluid film on the sample surface was removed.
 (3) At least, the saturated samples were submerged again in destilled water and the third measurement was done. An apparent mass due to buoyancy was determined.
DOI: 10.1594/gfz.sddb.1357
title: Porosity of Mini Cores (Plugs) of the KTB Pilot Hole VB1a

description: The porosity was determined using the most common Archimedian method (Schopper, 1982). It is based on the following three weight determinations of the sample:
 (1) The samples were dried for approximately 100 hours at 80 °C in an oven until the sample weight remains constant. The pore space is filled with air.
 (2) The samples were saturated, i.e. the pore space was completely filled with destilled water. Therefore, at room temperature and under vacuum the samples were submerged in destilled water for at least 24 hours. Afterwards atmospheric pressure was applied for at least 24 hours to let the water invade into the sample. The sample was taken from the water and the fluid film on the sample surface was removed.
 (3) At least, the saturated samples were submerged again in destilled water and the third measurement was done. An apparent mass due to buoyancy was determined.
DOI: 10.1594/gfz.sddb.1359
title: Porosity of Mini Cores (Plugs) of the KTB Main Hole HB1a

description: The porosity was determined using the most common Archimedian method (Schopper, 1982). It is based on the following three weight determinations of the sample:
 (1) The samples were dried for approximately 100 hours at 80 °C in an oven until the sample weight remains constant. The pore space is filled with air.
 (2) The samples were saturated, i.e. the pore space was completely filled with destilled water. Therefore, at room temperature and under vacuum the samples were submerged in destilled water for at least 24 hours. Afterwards atmospheric pressure was applied for at least 24 hours to let the water invade into the sample. The sample was taken from the water and the fluid film on the sample surface was removed.
 (3) At least, the saturated samples were submerged again in destilled water and the third measurement was done. An apparent mass due to buoyancy was determined.
DOI: 10.1594/gfz.sddb.1360
title: Porosity of Mini Cores (Plugs) of the KTB Main Hole HB1d

description: The porosity was determined using the most common Archimedian method (Schopper, 1982). It is based on the following three weight determinations of the sample:
 (1) The samples were dried for approximately 100 hours at 80 °C in an oven until the sample weight remains constant. The pore space is filled with air.
 (2) The samples were saturated, i.e. the pore space was completely filled with destilled water. Therefore, at room temperature and under vacuum the samples were submerged in destilled water for at least 24 hours. Afterwards atmospheric pressure was applied for at least 24 hours to let the water invade into the sample. The sample was taken from the water and the fluid film on the sample surface was removed.
 (3) At least, the saturated samples were submerged again in destilled water and the third measurement was done. An apparent mass due to buoyancy was determined.
DOI: 10.1594/gfz.sddb.1363
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole VB1

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1365
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole VB1b

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1366
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole HB1

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1367
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole HB1a

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1368
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole HB1d

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1369
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole HB1g

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1370
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole HB1g (special samples)

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1371
title: Magnetic Susceptibility of Cuttings of the KTB Pilot Hole HB1h

description: The magnetic susceptibility is measured by an inductive AC device (BARTINGTON). The sample is placed inside a coil which generates an alternating magnetic field. The applied frequency is 460 Hz (cuttings, 25.4 mm mini cores), 565 Hz (cores) or 1470 Hz (15 mm mini cores) respectively. A shift in the oscillator frequency is a measure for the magnetic susceptibility of the sample. The applied magnetic field strength is 80 A/m (RMS) and appr. 2 times the total earth magnetic field strength in the KTB area (=38 A/m). The measurement field is lower than the field which is necessary for magnetic saturation and allows therefore to measure the initial susceptibility. The used sensors are insensitive to the electrical conductivity of the samples. Except the determination of the temperature dependent susceptibility, all measurements are done under surface conditions (room temperature and atmospheric pressure).
DOI: 10.1594/gfz.sddb.1382
title: Radial Vp on Core Samples of the KTB Main Hole HB1g

description: Ultrasonic wave propagation through core samples is studied in a water tank to insure good signal transmission between transducer, rock specimen and receiver and to avoid time - consuming mechanical preparations. A specifically designed instrumentation was used, which allows to measure the radial p-wave velocity in the plane normal to the core axis and, if the core sample is long enough, also the axial p- and s-wave velocities by common mid-point (CMP) refraction experiments, with water as the upper and the core as the lower layer. By rotating the cores, all measurements are performed for variable azimuths. Computer control of all mechanical and electronical operations, digital 10-bit data aquisition, signal stacking and interactive seismogram evaluation are essential features of the system.
Data are available from the few cores taken below 4000 m. The investigations were carried out on the longest core sample of each cored interval (16 specimens).
DOI: 10.5281/zenodo.17914723
title: AIS Vessel Traffic Data - Tierra del Fuego Archipelago - Austral Summer 2025

description: Opportunistic AIS (Automatic Identification System) data collected aboard a Dutch commercial passenger vessel during a voyage through the Tierra del Fuego archipelago in December 2025. The data spans a route from the Chilean commune of Punta Arenas through the Strait of Magellan, the Beagle Channel, and the Argentinian provincial capital Ushuaia, with overnight port stops in both cities and a scenic detour to Cape Horn.
DOI: 10.5281/zenodo.17914722
title: AIS Vessel Traffic Data - Tierra del Fuego Archipelago - Austral Summer 2025

description: Opportunistic AIS (Automatic Identification System) data collected aboard a Dutch commercial passenger vessel during a voyage through the Tierra del Fuego archipelago in December 2025. The data spans a route from the Chilean commune of Punta Arenas through the Strait of Magellan, the Beagle Channel, and the Argentinian provincial capital Ushuaia, with overnight port stops in both cities and a scenic detour to Cape Horn.
DOI: 10.1594/gfz.sddb.1383
title: Axial Vp on Core Samples of the KTB Pilot Hole VB1

description: Ultrasonic wave propagation through core samples is studied in a water tank to insure good signal transmission between transducer, rock specimen and receiver and to avoid time - consuming mechanical preparations.
A specifically designed instrumentation was used, which allows to measure the radial p-wave velocity in the plane normal to the core axis and, if the core sample is long enough, also the axial p- and s-wave velocities by common mid-point (CMP) refraction experiments, with water as the upper and the core as the lower layer. By rotating the cores, all measurements are performed for variable azimuths. Computer control of all mechanical and electronical operations, digital 10-bit data aquisition, signal stacking and interactive seismogram evaluation are essential features of the system.
Data are available from the few cores taken below 4000 m. The investigations were carried out on the longest core sample of each cored interval (16 specimens).
DOI: 10.1594/gfz.sddb.1385
title: Axial Vp on Core Samples of the KTB Main Hole HB1

description: Ultrasonic wave propagation through core samples is studied in a water tank to insure good signal transmission between transducer, rock specimen and receiver and to avoid time - consuming mechanical preparations.
A specifically designed instrumentation was used, which allows to measure the radial p-wave velocity in the plane normal to the core axis and, if the core sample is long enough, also the axial p- and s-wave velocities by common mid-point (CMP) refraction experiments, with water as the upper and the core as the lower layer. By rotating the cores, all measurements are performed for variable azimuths. Computer control of all mechanical and electronical operations, digital 10-bit data aquisition, signal stacking and interactive seismogram evaluation are essential features of the system.
Data are available from the few cores taken below 4000 m. The investigations were carried out on the longest core sample of each cored interval (16 specimens).
DOI: 10.1594/gfz.sddb.1386
title: Axial Vp on Core Samples of the KTB Main Hole HB1a

description: Ultrasonic wave propagation through core samples is studied in a water tank to insure good signal transmission between transducer, rock specimen and receiver and to avoid time - consuming mechanical preparations.
A specifically designed instrumentation was used, which allows to measure the radial p-wave velocity in the plane normal to the core axis and, if the core sample is long enough, also the axial p- and s-wave velocities by common mid-point (CMP) refraction experiments, with water as the upper and the core as the lower layer. By rotating the cores, all measurements are performed for variable azimuths. Computer control of all mechanical and electronical operations, digital 10-bit data aquisition, signal stacking and interactive seismogram evaluation are essential features of the system.
Data are available from the few cores taken below 4000 m. The investigations were carried out on the longest core sample of each cored interval (16 specimens).
DOI: 10.15468/dl.jbdc8u
title: Occurrence Download

description: A dataset containing 1557 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Specimen)",
 "TaxonKey is Ilex ficoidea"
 ]
}

 The dataset includes 1557 records from 29 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0049913-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/gfz.sddb.1387
title: Axial Vs on Core Samples of the KTB Pilot Hole VB1

description: Ultrasonic wave propagation through core samples is studied in a water tank to insure good signal transmission between transducer, rock specimen and receiver and to avoid time - consuming mechanical preparations.
A specifically designed instrumentation was used, which allows to measure the radial p-wave velocity in the plane normal to the core axis and, if the core sample is long enough, also the axial p- and s-wave velocities by common mid-point (CMP) refraction experiments, with water as the upper and the core as the lower layer. By rotating the cores, all measurements are performed for variable azimuths. Computer control of all mechanical and electronical operations, digital 10-bit data aquisition, signal stacking and interactive seismogram evaluation are essential features of the system.
Data are available from the few cores taken below 4000 m. The investigations were carried out on the longest core sample of each cored interval (16 specimens).
DOI: 10.1594/gfz.sddb.1388
title: Axial Vs on Core Samples of the KTB Pilot Hole VB1a

description: Ultrasonic wave propagation through core samples is studied in a water tank to insure good signal transmission between transducer, rock specimen and receiver and to avoid time - consuming mechanical preparations.
A specifically designed instrumentation was used, which allows to measure the radial p-wave velocity in the plane normal to the core axis and, if the core sample is long enough, also the axial p- and s-wave velocities by common mid-point (CMP) refraction experiments, with water as the upper and the core as the lower layer. By rotating the cores, all measurements are performed for variable azimuths. Computer control of all mechanical and electronical operations, digital 10-bit data aquisition, signal stacking and interactive seismogram evaluation are essential features of the system.
Data are available from the few cores taken below 4000 m. The investigations were carried out on the longest core sample of each cored interval (16 specimens).
DOI: 10.1594/gfz.sddb.1389
title: Axial Vs on Core Samples of the KTB Main Hole HB1

description: Ultrasonic wave propagation through core samples is studied in a water tank to insure good signal transmission between transducer, rock specimen and receiver and to avoid time - consuming mechanical preparations.
A specifically designed instrumentation was used, which allows to measure the radial p-wave velocity in the plane normal to the core axis and, if the core sample is long enough, also the axial p- and s-wave velocities by common mid-point (CMP) refraction experiments, with water as the upper and the core as the lower layer. By rotating the cores, all measurements are performed for variable azimuths. Computer control of all mechanical and electronical operations, digital 10-bit data aquisition, signal stacking and interactive seismogram evaluation are essential features of the system.
Data are available from the few cores taken below 4000 m. The investigations were carried out on the longest core sample of each cored interval (16 specimens).