Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja: Mineral determination from IODP Site 356-U1461 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.927014 (dataset in review)
Abstract:
The Northwest Shelf of Australia (NWS) is an extensive tropical carbonate ramp and forms an important template for the interpretation of similar systems in the sedimentary record. Yet, little is known about the development of the distally steepened ramp from the middle to late Quaternary, a period of high frequency glacioeustatic changes in sea level and climate. This research describes core and seismic-reflection data from a mid- to outer ramp transect at the NWS. X-ray diffraction (XRD) derived mineral data is used to delineate the carbonate mineralogy of the different sedimentary facies occurring in core. It is further utilized to assess the influence of terrigenous influx into the shallow-marine system. Bioclastic sediments, which formed during interglacials, are characterized by comparatively high amounts of siliciclastics and calcitic carbonates. Siliciclastics are thought to reflect the humid climate and associated fluvial influx present during interglacials. Needle mudstones and ooid/peloid packstones, which formed during arid glacials, are characterized by an aragonitic mineralogy with little siliciclastics. These findings indicate that the mineralogy of the Quaternary NWS changes cyclically in response to high-frequency glacioeustatic variations in sea level and climate.
Keyword(s):
Related to:
Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja: Abundance of non-skeletal grains from IODP Site 356-U1461. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.927008
Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja: Bulk density from IODP Site 356-U1461. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.927012
Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja (submitted): Internal Architecture of a carbonate ramp exposed to high amplitude sea-level fluctuations: Evidence from the NW shelf of Australia. Sedimentology
Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja: Lightness measurement from IODP Site 356-U1461. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.927013
Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja: P-wave velocity measurement from IODP Site 356-U1461. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.927017
Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja: Porosity analysis from IODP Site 356-U1461. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.927015
Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen John; Iwatani, Hokuto; Lindhorst, Katja: XRF measurement from IODP Site 356-U1461. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.927018
Project(s):
Coverage:
Median Latitude: -20.214215 * Median Longitude: 115.065705 * South-bound Latitude: -20.214400 * West-bound Longitude: 115.065615 * North-bound Latitude: -20.214045 * East-bound Longitude: 115.065800
Date/Time Start: 2015-08-17T18:25:00 * Date/Time End: 2015-11-20T09:40:00
Minimum DEPTH, sediment/rock: 0.44 m * Maximum DEPTH, sediment/rock: 69.23 m
Event(s):
356-U1461A * Latitude: -20.214400 * Longitude: 115.065800 * Date/Time: 2015-08-17T18:25:00 * Elevation: -127.2 m * Penetration: 284.70 m * Recovery: 287.59 m * Campaign: EXP356 * Basis: Joides Resolution * Method/Device: Half-length advanced piston corer (HLAPC)
356-U1461B * Latitude: -20.214200 * Longitude: 115.065700 * Date/Time: 2015-08-18T16:00:00 * Penetration: 879.20 m * Recovery: 743.24 m * Campaign: EXP356 * Basis: Joides Resolution * Method/Device: Autoclave piston corer (APC)
356-U1461C * Latitude: -20.214045 * Longitude: 115.065615 * Date/Time: 2015-11-20T09:40:00 * Elevation: -264.2 m * Penetration: 443.90 m * Recovery: 448.53 m * Campaign: EXP356 * Basis: Joides Resolution * Method/Device: Rotary core drilling (RCD)
Comment:
Mineralogy was determined on 118 samples using a Siemens D5000 x-ray diffractometer (Bruker (Siemens), Billerica, MA, USA). The measurements of the powdered samples were conducted over an angle field of 66° (4°-70°) with a step size of 4*10-3° per second. Standard Rietveld refinement using the software Profex (ver. 4.0.2) achieved identification and quantification of different mineral phases.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Hallenberger, Maximilian | |||
| 2 | Latitude of event | Latitude | Hallenberger, Maximilian | |||
| 3 | Longitude of event | Longitude | Hallenberger, Maximilian | |||
| 4 | Date/Time of event | Date/Time | Hallenberger, Maximilian | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Hallenberger, Maximilian | Geocode – Depth CSF-A (m) | |
| 6 | DEPTH, sediment/rock | Depth sed | m | Hallenberger, Maximilian | Geocode – Depth CCSF-A (m) | |
| 7 | Aragonite | Arg | % | Hallenberger, Maximilian | X-ray diffraction (Siemens D5000) | |
| 8 | High magnesium calcite | HMC | % | Hallenberger, Maximilian | X-ray diffraction (Siemens D5000) | |
| 9 | Low magnesium calcite | LMC | % | Hallenberger, Maximilian | X-ray diffraction (Siemens D5000) | |
| 10 | Dolomite | Dol | % | Hallenberger, Maximilian | X-ray diffraction (Siemens D5000) | |
| 11 | Siliciclastics | Siliciclast | % | Hallenberger, Maximilian | X-ray diffraction (Siemens D5000) | |
| 12 | Minerals, other | Min other | % | Hallenberger, Maximilian | X-ray diffraction (Siemens D5000) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
702 data points