ODP1089: Marine core ODP1089

In mcrucifix/pleistocene: Datasets of glacial cycles (ice and ocean)

Description

Leg 177. Site 1089. Hole A Position: 40 deg 56.1865 min S. 9 deg 53.6447 min E Water depth. mbrf ( APC Calc ): 4630.2m

Usage

data(ODP1089)

Format

A data frame on the following variables.

Variables:
Site
Hole
Core
Section
IntervalTop.cm.
IntervalBottom.cm.
Depth.modified.mcd.
Age.ka.
d18O.F.bulloides.permil.
d13C.G.bulloides.permil.
d18O.Cibicidoides..permil.
d13C.Cibicidoides..permil.
Lab
CaCO3..wt..
fragmentation....
LabZ

Details

Site 1089 is located on a sediment drift in 4621 m of water in the southernmost Cape Basin, just north of the Agulhas Ridge at 40d56.2'S, 9d53.6'E (Fig. F1). Stable isotopes and weight percent CaCO3 were measured on samples taken at 5-cm spacing from the modified Site 1089 composite section (Table T2) (Ninnemann et al., 1999; Hodell et al., 2001, in press; P.G. Mortyn et al., unpubl. data). The shipboard composite was modified slightly because oxygen isotope stratigraphy reveahatled t some of the shipboard splices overlapped slightly, whereas others were incomplete (Table T3). Sedimentation rates are high (average = 15 cm/k.y.) and provide an average sampling spacing of ~350 yr. [...] The chronology for Site 1089 was developed by correlating the benthic 18O record to the SPECMAP reference signal (Fig. F5). For part of MIS 7, the planktonic 18O record was used for correlation to SPECMAP because of a break in the benthic signal. The Site 1089 benthic 18O record is remarkably similar to SPECMAP (Fig. F5), permitting the development of a precise orbitally tuned timescale for Site 1089.

Source

See the file ‘PKG/orig/ODP/ODP1089.txt’ for details. Original version at http://odp.pangaea.de/publications/177_SR/VOLUME/TABLES/SR177_09/09_T02.TXT

References

Hodell, D.A., Charles, C.D., Curtis, J.H., Mortyn, P.G., Ninnemann, U.S., and Venz, K.A., 2003. Data report: oxygen isotope stratigraphy of ODP Leg 177 Sites 1088, 1089, 1090, 1093, and 1094. In Gersonde, R., Hodell, D.A., and Blum, P. (Eds.), Proc. ODP, Sci. Results, 177: College Station, TX (Ocean Drilling Program), 1-26. doi:10.2973/odp.proc.sr.177.120.2003

Examples

## plot latest five G-I cycles
data(ODP1089)
with (ODP1089,plot(Age.ka.,d18O.Cibicidoides..permil.,type='b'))

mcrucifix/pleistocene documentation built on May 22, 2019, 3:20 p.m.