von Dobeneck, Tilo; Bukar, Shettima: Petrological classification and lithology-specific abundance analysis of ice-rafted detritus (IRD) of sediment core GeoB18530-1 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971290 (dataset in review)
Abstract:
IRD-rich Heinrich Event (HE) layers are commonly used as stratigraphic markers of North Atlantic sediments. Gravity core GeoB18530-1, retrieved from the SE Grand Banks slope of Newfoundland, features a proximal and therefore complete and expanded HE layer succession, which was sampled and investigated in steps of 2.3 cm, permitting a petrographic, stratigraphic and statistical analysis of IRD lithology and abundance in unpreceded detail. In total, 8243 IRD particles of the > 1 mm fraction from 216 syringe samples were microscopically classified and counted following the newly developed IRD classification system of Bukar et al. (submitted) based on petrographic thin section analyses of selected larger IRD granules. The data sets provided here comprise classified IRD count data, high-quality representative micrographs and interpreted thin sections of all observed IRD lithologies, and systematic univariate and multivariate IRD statistics permitting to rank all observed IRD lithologies by abundance and to determine their individual affiliation to Heinrich Events and their interlayers.
Supplement to:
Bukar, Shettima; Lisker, Frank; von Dobeneck, Tilo; Max, Lars; Wang, Yiyun; Lenz, Marlene M; Mulitza, Stefan; St-Onge, Guillaume; Piper, David (submitted): Ice-Rafted Detritus (IRD) of the SE Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 6 - Part I: Petrology and Abundance. Geochemistry, Geophysics, Geosystems
Further details:
Max, Lars; Nürnberg, Dirk; Chiessi, Cristiano Mazur; Lenz, Marlene M; Mulitza, Stefan (2022): Age determination of sediment core GeoB18530-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943562
von Dobeneck, Tilo (2020): Light reflectance (RGB) of sediment core GeoB18530-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.915670
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 221211316: GRK/IRTG 1904: ArcTrain - Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic
Petroleum Technology Development Fund (PTDF), grant/award no. Shettima Bukar: Overseas postgraduate scholarship to Shettima Bukar
Coverage:
Latitude: 42.839500 * Longitude: -49.234833
Date/Time Start: 2014-06-14T13:58:00 * Date/Time End: 2014-06-14T13:58:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
8 datasets
Download Data (login required)
Datasets listed in this bundled publication
- von Dobeneck, T; Bukar, S (in review): Relative and absolute abundance records of three IRD particle groups and six major IRD lithologies of sediment core GeoB18530-1. https://doi.pangaea.de/10.1594/PANGAEA.971288
- Bukar, S; von Dobeneck, T; Max, L et al. (in review): Extended age model of sediment core GeoB18530-1 by correlation of δ18O record to NGRIP chronology. https://doi.pangaea.de/10.1594/PANGAEA.971262
- Bukar, S; von Dobeneck, T; Max, L et al. (in review): Extended age model of sediment core GeoB18530-1 by correlation of Ca/Sr record to NGRIP chronology. https://doi.pangaea.de/10.1594/PANGAEA.971256
- Bukar, S; von Dobeneck, T (in review): IRD composition and accumulation rates of Heinrich Event layers (H1-H6) and interlayers (I1-I5) in sediment core GeoB18530-1. https://doi.pangaea.de/10.1594/PANGAEA.971271
- Bukar, S; Lisker, F; von Dobeneck, T et al. (in review): Lithology-specific IRD counts of sediment core GeoB18530-1. https://doi.pangaea.de/10.1594/PANGAEA.971280
- Bukar, S; Lisker, F; von Dobeneck, T et al. (in review): Digital grain and thin section micrographs of petrologically representative IRD particles in sediment core GeoB18530-1. https://doi.pangaea.de/10.1594/PANGAEA.971281
- von Dobeneck, T; Bukar, S (in review): Nonlinear Mapping (NLM) analysis of IRD content in Heinrich Event layers (H1-H6) and interlayers (I1-I5) of sediment core GeoB18530-1. https://doi.pangaea.de/10.1594/PANGAEA.971282
- von Dobeneck, T; Bukar, S (in review): Principal Component Analysis (PCA) of IRD content in Heinrich Event layers (H1-H6) and interlayers (I1-I5) of sediment core GeoB18530-1. https://doi.pangaea.de/10.1594/PANGAEA.971287