Ennyu, Atsuhito; Arthur, Michael A (2012): Calcareous microfossil isotopes and Miocene datum events of ODP Holes 189-1170A and 189-1172A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.780279, Supplement to: Ennyu, A; Arthur, MA (2004): Data report: Oxygen and carbon stable isotope records of the Miocene calcareous microfossils from ODP Leg 189 Sites 1170 (South Tasman Rise) and 1172 (East Tasman Plateau). In: Exon, NF; Kennett, JP; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 189, 1-12, https://doi.org/10.2973/odp.proc.sr.189.112.2004
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Abstract:
Downcore oxygen and carbon stable isotope records of planktonic and benthic foraminifers and fine-fraction carbonate from the southern high latitudes provide critical paleohydrographic constraints on the evolution of the Southern Ocean climate. In particular, the potential effects of an intensified Antarctic Circumpolar Current on the thermal isolation and cooling of the southern high latitudes, production of cold deep waters, and, ultimately, accumulation of continental ice on Antarctica in the middle Miocene are matters of interest. Using sediment materials from Ocean Drilling Program Leg 189 Sites 1170 and 1172 off Tasmania, Ennyu and Arthur (2004, doi:10.1029/151GM13) established the surface- and deepwater stable isotope records in the Southern Ocean across the middle Miocene event of the east Antarctic ice sheet expansion and discussed the paleoclimate proxy records in terms of the thermal evolution of the southern high latitudes and its effect on deepwater circulation.
This report provides data tables and other supporting information relevant to discussions presented in Ennyu and Arthur (2004, doi:10.1029/151GM13). Items included in this report are (1) the oxygen and carbon stable isotope data measured on the Miocene bulk fine-fraction (i.e., <63 µm, primarily polyspecific nannofossil assemblage) carbonate and planktonic and benthic foraminifers from Holes 1170A and 1172A and (2) the Miocene depth-age models for the two sites.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -45.555240 * Median Longitude: 147.989030 * South-bound Latitude: -47.150730 * West-bound Longitude: 146.049800 * North-bound Latitude: -43.959750 * East-bound Longitude: 149.928260
Date/Time Start: 2000-03-31T08:30:00 * Date/Time End: 2000-04-26T09:30:00
Event(s):
189-1170A * Latitude: -47.150730 * Longitude: 146.049800 * Date/Time Start: 2000-03-31T08:30:00 * Date/Time End: 2000-04-03T05:45:00 * Elevation: -2704.7 m * Penetration: 464.3 m * Recovery: 379.87 m * Location: Indian Ocean * Campaign: Leg189 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 52 cores; 464.3 m cored; 0 m drilled; 81.8 % recovery
189-1172A * Latitude: -43.959750 * Longitude: 149.928260 * Date/Time Start: 2000-04-22T06:45:00 * Date/Time End: 2000-04-26T09:30:00 * Elevation: -2621.9 m * Penetration: 522.6 m * Recovery: 483.72 m * Location: Tasman Sea * Campaign: Leg189 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 56 cores; 522.6 m cored; 0 m drilled; 92.6 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
Download Data
Datasets listed in this publication series
- Ennyu, A; Arthur, MA (2004): (Table T1) Oxygen and carbon stable isotopes of calcareous microfossils from ODP Holes 189-1170A and 189-1172A. https://doi.org/10.1594/PANGAEA.780277
- Ennyu, A; Arthur, MA (2004): (Table T2) Miocene magnetic polarity and biostratigraphy datum events from ODP Holes 189-1170A and 189-1172A. https://doi.org/10.1594/PANGAEA.780278