Sr stratigraphy and biostratigraphy for samples from DSDP Hole 32-305 and ODP Hole 123-766A
| Cobertura |
MEDIAN LATITUDE: 6.035100 * MEDIAN LONGITUDE: 134.152050 * SOUTH-BOUND LATITUDE: -19.932000 * WEST-BOUND LONGITUDE: 110.454100 * NORTH-BOUND LATITUDE: 32.002200 * EAST-BOUND LONGITUDE: 157.850000 * DATE/TIME START: 1973-08-29T00:00:00 * DATE/TIME END: 1988-10-26T00:00:00 |
|---|---|
| Data(s) |
06/07/2003
|
| Resumo |
The strontium isotope ratios (87Sr/86Sr) of marine barite microcrystals separated from Cretaceous sedimentary deposits from Ocean Drilling Program and Deep Sea Drilling Project sites from the Pacific and Indian Oceans have been compared to the composite Sr isotope curve of McArthur et al. The barite in these cores accurately recorded the seawater 87Sr/86Sr ratio, thereby reaffirming the composite Cretaceous strontium curve. Moreover, marine barite is a more reliable recorder of 87Sr/86Sr than is carbonate in sedimentary deposits with high clay content, thereby providing an opportunity for Sr isotope stratigraphy and dating in carbonate-poor or diagenetically altered sections. We have used the barite-derived Sr isotope record to refine the biostratigraphic age models of the sites investigated. |
| Formato |
application/zip, 2 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.723906 doi:10.1594/PANGAEA.723906 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Relação |
Table DR1 - Sr stratigraphy and biostratigraphy for samples from Site 305 and Site 766 (URI: ftp://rock.geosociety.org/pub/reposit/2003/2003002.pdf) |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Mearon, Sarah; Paytan, Adina; Bralower, Timothy J (2003): Cretaceous strontium isotope stratigraphy using marine barite. Geology, 31(1), 15-18, doi:10.1130/0091-7613(2003)031<0015:CSISUM>2.0.CO;2 |
| Palavras-Chave | #123-766A; 32-305; 87Sr/86Sr; Age; AGE; Age, maximum/old; Age, minimum/young; Age max; Age min; Age model; Deep Sea Drilling Project; Depth; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; foraminifera age; Glomar Challenger; in barite; in carbonate; Isotope ratio mass spectrometry; Joides Resolution; Label; Leg123; Leg32; nannofossil age; nannofossil estimated age; Nannofossil zone; Nannos zone; North Pacific/CONT RISE; Ocean Drilling Program; ODP; ODP sample designation; Sample code/label; South Indian Ridge, South Indian Ocean; Strontium 87/Strontium 86 ratio |
| Tipo |
Dataset |
