Strasser, Michael; Weissert, Helmut J; Bernasconi, Stefano M (2006): Carbon and oxygen isotopic composition and age dating of sediments from ODP Leg 170 sites and Hole 205-1253A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.775228, Supplement to: Strasser, M et al. (2006): Data report: Carbon and oxygen isotope geochemistry along a subducting pelagic section offshore Costa Rica (ODP Legs 170 and 205). In: Morris, JD; Villinger, HW; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 205, 1-18, https://doi.org/10.2973/odp.proc.sr.205.205.2006
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Abstract:
In this data report we present results from stable isotope measurements (d13C and d18O) on bulk sediment at several sites located on a transect along a subduction margin offshore Costa Rica (Ocean Drilling Program Sites 1039, 1040, and 1253). Comparison of stable isotope compositions (d13C and d18O) of the pelagic carbonates Subunit U3C between the reference sites (Site 1039 and 1253) and the underthrust section (Site 1040) reveals similar d13C values and minor differences in d18O values within four specific intervals. Isotope stratigraphy was then used to further constrain the shipboard age models based on bio- and magnetostratigraphy. The resulting age models are in agreement with those derived from biostratigraphy and confirm that the sedimentation rate of the lower Subunit 3C is roughly constant on the order of 50 m/m.y. This is in contrast with the postulated very high sedimentation rates at ~12.7 Ma and lower sedimentation rates (~18 m/m.y.) in the lower part of the section between 16 and 13 Ma, as suggested by shipboard magnetostratigraphic datums.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 9.645178 * Median Longitude: -86.194779 * South-bound Latitude: 9.639767 * West-bound Longitude: -86.200033 * North-bound Latitude: 9.661600 * East-bound Longitude: -86.178900
Date/Time Start: 1996-11-01T00:00:00 * Date/Time End: 2002-10-11T09:45:00
Event(s):
170-1039 * Latitude: 9.639767 * Longitude: -86.200033 * Date/Time Start: 1996-11-01T00:00:00 * Date/Time End: 1996-11-20T00:00:00 * Elevation: -4352.0 m * Penetration: 1268 m * Recovery: 449 m * Location: Costa Rica subduction complex, North Pacific Ocean * Campaign: Leg170 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 56 cores; 497.9 m cored; 407 m drilled; 90.2% recovery
170-1039B * Latitude: 9.640000 * Longitude: -86.200000 * Date/Time Start: 1996-11-02T03:30:00 * Date/Time End: 1996-11-05T00:00:00 * Elevation: -4353.5 m * Penetration: 384.3 m * Recovery: 382.46 m * Location: Costa Rica subduction complex, North Pacific Ocean * Campaign: Leg170 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 42 cores; 384.3 m cored; 0 m drilled; 99.5 % recovery
170-1040C * Latitude: 9.661600 * Longitude: -86.178900 * Date/Time Start: 1996-11-11T05:30:00 * Date/Time End: 1996-11-18T12:00:00 * Elevation: -4177.9 m * Penetration: 665 m * Recovery: 377.28 m * Location: Costa Rica subduction complex, North Pacific Ocean * Campaign: Leg170 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 505.7 m cored; 0 m drilled; 74.6 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Strasser, M; Weissert, HJ; Bernasconi, SM (2006): (Table T2) Compiled biostratigraphic, magnetostratigraphic and isotopic datums of bulk sediments from ODP Site 170-1039. https://doi.org/10.1594/PANGAEA.775226
- Strasser, M; Weissert, HJ; Bernasconi, SM (2006): (Table T1) Oxygen and carbon isotopic composition of bulk sediments from two ODP Leg 170 holes and Hole 205-1253A. https://doi.org/10.1594/PANGAEA.775225