Description: This database is a compilation of studies published and unpublished quantifying calcareous nannofossils absolute abundances using Geisen et al. (1999) random-settling calibration. The data are ranging from Sinemurian (Lower Jurassic) to Quaternary. They were made on DSDP-ODP-IODP deep sea drilling, land sediment cores or, in most cases, land outcrop sections samples. Calcareous nannofossil accumulation rates (NAR) were calculated or updated by estimating sedimentation rates following sub-stages and biozones durations provided by Gradstein et al. (2012) or astrochronology when possible. In most sites, there were no indication of the dry bulk density (DBD), hence a type value was selected. This parameter is not critical for NAR calculated from land outcrop section samples (see Suchéras-Marx et al., 2014 Marine Micropaleontology). The results of the compilation is published in Suchéras-Marx et al., 2019 Biogeosciences.
Global identifier:
Doi(
"10.1594/PANGAEA.902908",
)
Dataset
Origins: /Wissenschaft/PANGAEA
Tags: Kalibrierung ? Daten ? Standortwahl ? Studie ? Datenbank ? Sedimentation ? Accumulation rate ? absolute abundance ? calcareous nannofossil ? macroevolution ?
Bounding boxes: -84.5162° .. 161.2267° x -51.0047° .. 74.801972°
License: cc-by-nc-sa/4.0
Language: Englisch/English
Issued: 2019-06-24
Modified: 2019-07-09
Time ranges: 1970-05-13 - 2003-10-28
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