Skip to main content
placeholder image

Holocene distribution and amino acid racemisation of the benthic foraminifer massilina milletti, northern spencer gulf, South Australia

Journal Article


Abstract


  • The benthic foraminifer Massilina milletti increases numerically with increasing depth of water in northern Spencer Gulf. In contrast, Cribrobulimina mixta, Nubecularia lucifuga, Peneroplis planatus and Discorbis dimidiatus are more characteristic of shallow water. Vibrocore #198 recovered a section of Quaternary sediments from one of the deepest parts (c. 20 m) of northern Spencer Gulf. The distribution of benthic foraminifera in the upper 1.5 m of this core records the Holocene transgression and indicates continuous sedimentation since c. 8,000 radiocarbon years B.P. Amino acid racémisation values for samples of Massilina milletti taken from core #198 are generally consistent with their depth in core. The D/L ratio, taken as an indicator of age, increases with depth. Anomalously high D/L values for the sample from 27-29 cm depth are attributed to slumping and reworking of Lower Holocene sediments, apparently initiated by a sudden seismic event c. 1, 700 radiocarbon years B.P. © 1986 Association of Australasian Palaeontologists.

Publication Date


  • 1986

Citation


  • Cann, J. H., & Murray-Wallace, C. V. (1986). Holocene distribution and amino acid racemisation of the benthic foraminifer massilina milletti, northern spencer gulf, South Australia. Alcheringa, 10(1), 45-54. doi:10.1080/03115518608619041

Scopus Eid


  • 2-s2.0-0022847064

Start Page


  • 45

End Page


  • 54

Volume


  • 10

Issue


  • 1

Abstract


  • The benthic foraminifer Massilina milletti increases numerically with increasing depth of water in northern Spencer Gulf. In contrast, Cribrobulimina mixta, Nubecularia lucifuga, Peneroplis planatus and Discorbis dimidiatus are more characteristic of shallow water. Vibrocore #198 recovered a section of Quaternary sediments from one of the deepest parts (c. 20 m) of northern Spencer Gulf. The distribution of benthic foraminifera in the upper 1.5 m of this core records the Holocene transgression and indicates continuous sedimentation since c. 8,000 radiocarbon years B.P. Amino acid racémisation values for samples of Massilina milletti taken from core #198 are generally consistent with their depth in core. The D/L ratio, taken as an indicator of age, increases with depth. Anomalously high D/L values for the sample from 27-29 cm depth are attributed to slumping and reworking of Lower Holocene sediments, apparently initiated by a sudden seismic event c. 1, 700 radiocarbon years B.P. © 1986 Association of Australasian Palaeontologists.

Publication Date


  • 1986

Citation


  • Cann, J. H., & Murray-Wallace, C. V. (1986). Holocene distribution and amino acid racemisation of the benthic foraminifer massilina milletti, northern spencer gulf, South Australia. Alcheringa, 10(1), 45-54. doi:10.1080/03115518608619041

Scopus Eid


  • 2-s2.0-0022847064

Start Page


  • 45

End Page


  • 54

Volume


  • 10

Issue


  • 1