Duxbury, Lucinda Cameron; Johns-Mead, Lluka Yohanni; Löhr, Stefan C; Hall, Philip Anthony; Francke, Alexander; Maxson, Charles; Law, Wallace Boone; Tyler, Jonathan James: Mineralogical characterisation from XRD analysis of sediments and soils in the catchment of Lashmars Lagoon, Kangaroo Island (Karti/Karta), southern Australia [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.965865 (dataset in review)
Abstract:
These data comprise XRD mineralogical analysis of twelve soil and sediment samples from the catchment surrounding Lashmars Lagoon, Kangaroo Island (Karti/Karta), southern Australia. To assess possible changes of sediment sources to Lashmars Lagoon over the past 7 kyr that could impact the interpretation of the palaeoenvironmental history of the site, these data were compared to the downcore XRD data from the composite lake sediment core (see 'Chronology, µXRF, XRD and bulk organic geochemistry from a lake sediment core from Lashmars Lagoon, Kangaroo Island (Karti), southern Australia, for the last 7 kyr'). The catchment soil and sediment samples were collected during field campaigns in November and December 2021. Soil samples were taken of the different surrounding surface geologies and sediment samples were taken from the creek inflows and one outflow to the lake, as well as a mudline sample from the northern basin of the lake. Mineralogy was determined by semi-quantitative XRD analysis using a Bruker D8 ADVANCE Powder X-ray Diffractometer with a Cu-radiation source operating at 40 KV and 40 amps, scanning 2 theta from 5 to 65 degrees with sample rotation of 30 rotations per minute. Data were interpreted using the software package DIFFRAC.EVA (Bruker, Karlsruhe, Germany) and Crystallography Open Database (www.crystallography.net/cod/) reference patterns for identifying mineral phases. Semi-quantitative estimates of mineral composition were obtained by Rietveld modelling using the program DIFFRAC.TOPAS 4.2 (Bruker, Karlsruhe, Germany).
Supplement to:
Duxbury, Lucinda Cameron; Johns-Mead, Lluka Yohanni; Cadd, Haidee; Francke, Alexander; Löhr, Stefan C; Law, Wallace Boone; Armbrecht, Linda; Hall, Philip Anthony; Zawadzki, Atun; Jacobsen, Geraldine; Gadd, Patricia S; Child, David P; Maxson, Charles; Thomas, Zoë Amber; Tyler, Jonathan James (in review): Holocene Climate and Catchment Change Inferred from the Geochemistry of Lashmars Lagoon, Kangaroo Island (Karti), Southern Australia. SSRN, https://doi.org/10.2139/ssrn.4544393
Coverage:
Median Latitude: -35.806859 * Median Longitude: 138.061083 * South-bound Latitude: -35.819083 * West-bound Longitude: 138.045222 * North-bound Latitude: -35.788056 * East-bound Longitude: 138.071944
Date/Time Start: 2021-11-19T00:00:00 * Date/Time End: 2021-12-22T00:00:00
Event(s):
Lashmars_Lagoon_a (Dec2021_catchment_a) * Latitude: -35.788056 * Longitude: 138.065556 * Date/Time: 2021-12-22T00:00:00 * Location: South Australia * Method/Device: Sampling by hand (HAND) * Comment: Sediment and soil samples collected by hand in centrifuge tubes.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Duxbury, Lucinda Cameron | |||
| 2 | Latitude of event | Latitude | Duxbury, Lucinda Cameron | |||
| 3 | Longitude of event | Longitude | Duxbury, Lucinda Cameron | |||
| 4 | Date/Time of event | Date/Time | Duxbury, Lucinda Cameron | |||
| 5 | Sample ID | Sample ID | Duxbury, Lucinda Cameron | |||
| 6 | Sample type | Samp type | Duxbury, Lucinda Cameron | |||
| 7 | Sample code/label | Sample label | Duxbury, Lucinda Cameron | |||
| 8 | Aragonite | Arg | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 9 | Calcite | Cal | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 10 | Magnesium-Calcite | Mg-Cal | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 11 | Kutnohorite | Kut | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 12 | Halite | Hl | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 13 | Gypsum | Gp | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 14 | Pyrite, FeS2 | Py | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 15 | Biotite | Bt | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 16 | Muscovite | Ms | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 17 | Illite | Ill | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 18 | Kaolinite | Kln | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 19 | Quartz | Qz | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 20 | Oligoclase | Oligoc | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 21 | Microcline | Mc | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] | |
| 22 | Rutile | Rt | % | Duxbury, Lucinda Cameron | Estimated, applying Rietveld modelling [DIFFRAC.TOPAS 4.2] |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
232 data points