Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Thulasi, Thena; Pandey, Dhananjai K; Singh, Raj K; Nair, Nisha; Roshni, Kollaparambil Surendran (2023): Danian foraminifera from Laxmi Basin, Northern Indian Ocean [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.959582

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Deep-sea sediments from the International Ocean Discovery Program (IODP) Site U1457 (Laxmi basin, Northern Indian Ocean) at ~1100 meters below the seafloor (mbsf) of the Danian period (c. 66 – 61.6 Ma) are examined, which suggest that the foraminifera subsisted across the major geologic events. A foraminiferal census count (%) was performed under a microscope and species belonging to Bolivina, Bulimina, Cassidulina, Cibicidoides, Epistominella, and Oolina genera are found to be dominant in the region (Table 1). The species were grouped under relative abundance (benthic/planktic), habitual preference (infauna/epifauna), and shell composition (calcareous/agglutinated) with literature references (Table 2). Calcium carbonate (%) was calculated from inorganic carbon values analyzed in a coulometer (Table 2). Magnetic susceptibility of low frequency is measured through a Bartington MS2B sensor and the units of measurement are defined in Table 2. The assemblage of benthic foraminifera belonging to each morphogroup (Table 3). Oxic, Suboxic, Dysoxic benthic foraminifera and Oxygen content were calculated through transfer function from oxyphillic species (Table 4). Benthic foraminifera diversity pattern Fisher alpha calculated through PAST software. All the foraminifera representations are made in percentage and depth in the units of meters below the seafloor.
Keyword(s):
Calcium Carbonate; Danian; Foraminifera; Laxmi basin; Northern Indian Ocean
Supplement to:
Thulasi, Thena; Pandey, Dhananjai K; Singh, Raj K; Nair, Nisha; Roshni, Kollaparambil Surendran (2023): Benthic foraminiferal survival through the early Paleocene (Danian) greenhouse climate interval based on analysis of IODP Site U1457 (Laxmi Basin, Northern Indian Ocean). Evolving Earth, 1, 100003, https://doi.org/10.1016/j.eve.2023.100003
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Funding:
National Centre for Polar and Ocean Research, Ministry of Earth Sciences, grant/award no. MoES/PO(Seismo)/8(16)2020: IODP-SAGE
Coverage:
Latitude: 18.151000 * Longitude: 67.930000
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
5 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this bundled publication

  1. Thulasi, T; Pandey, DK; Singh, RK et al. (2023): Danian benthic foraminifera abundances of IODP Hole 355-U1457C. https://doi.org/10.1594/PANGAEA.959584
  2. Thulasi, T; Pandey, DK; Singh, RK et al. (2023): Danian benthic foraminifera habitat preferences and shell compositions of IODP Hole 355-U1457C. https://doi.org/10.1594/PANGAEA.959585
  3. Thulasi, T; Pandey, DK; Singh, RK et al. (2023): Danian benthic foraminifera morphogroups of IODP Hole 355-U1457C. https://doi.org/10.1594/PANGAEA.959586
  4. Thulasi, T; Pandey, DK; Singh, RK et al. (2023): Danian benthic foraminifera oxygen groups and shell compositions of IODP Hole 355-U1457C. https://doi.org/10.1594/PANGAEA.959587
  5. Thulasi, T; Pandey, DK; Singh, RK et al. (2023): Danian benthic foraminifera Fisher alpha diversity index of IODP Hole 355-U1457C. https://doi.org/10.1594/PANGAEA.959588