Strontium isotope ratios of DSDP samples

The isotopic ratio of strontium-87 to strontium-86 shows no detectable variation in present-day ocean water but changes slowly over millions of years. The strontium contained in carbonate shells of marine organisms records the ratio of strontium-87 to strontium-86 of the oceans at the time that the...

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Bibliographic Details
Main Authors: DePaolo, Donald J, Ingram, B Lynn
Format: Dataset
Language:English
Published: PANGAEA 1985
Subjects:
17-167
48-400A
62-465A
73-522
90-590B
Deep Sea Drilling Project
DRILL
Drilling/drill rig
DSDP
Glomar Challenger
Leg17
Leg48
Leg62
Leg73
Leg90
North Atlantic/BASIN
North Pacific/CONT RISE
South Atlantic/PLATEAU
South Pacific/Tasman Sea/CONT RISE
Pacific
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.726903
https://doi.org/10.1594/PANGAEA.726903
Description
Summary:The isotopic ratio of strontium-87 to strontium-86 shows no detectable variation in present-day ocean water but changes slowly over millions of years. The strontium contained in carbonate shells of marine organisms records the ratio of strontium-87 to strontium-86 of the oceans at the time that the shells form. Sedimentary rocks composed of accumulated fossil carbonate shells can be dated and correlated with the use of high precision measurements of the ratio of strontium-87 to strontium-86 with a resolution that is similar to that of other techniques used in age correlation. This method may prove valuable for many geological, paleontological, paleooceanographic, and geochemical problems.

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