Strontium isotope ratios of pore waters and planktonic foraminifera from DSDP holes
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
1986
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| _version_ | 1867172221274816512 |
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| author | Hess, Jennifer Bender, Michael L Schilling, Jean-Guy |
| author_facet | Hess, Jennifer Bender, Michael L Schilling, Jean-Guy |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | A detailed record of the strontium-87 to strontium-86 ratio in seawater during the last 100 million years was determined by measuring this ratio in 137 well-preserved and well-dated fossil foraminifera samples. Sample preservation was evaluated from scanning electron microscopy studies, measured strontium-calcium ratios, and pore water strontium isotope ratios. The evolution of the strontium isotopic ratio in seawater offers a means to evaluate long-term changes in the global strontium isotope mass balance. Results show that the marine strontium isotope composition can be used for correlating and dating well-preserved authigenic marine sediments throughout much of the Cenozoic to a precision of +/- 1 million years. The strontium-87 to strontium-86 ratio in seawater increased sharply across the Cretaceous/Tertiary boundary, but this feature is not readily explained as strontium input from a bolide impact on land. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_712599 |
| institution | PANGAEA |
| language | en |
| publishDate | 1986 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Strontium isotope ratios of pore waters and planktonic foraminifera from DSDP holes Hess, Jennifer Bender, Michael L Schilling, Jean-Guy 29-277; 32-305; 39-356; 41-366; 68-502; 72-516; 72-516F; 86-577; 90-593; Antarctic Ocean/PLATEAU; Caribbean Sea/RIDGE; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg29; Leg32; Leg39; Leg41; Leg68; Leg72; Leg86; Leg90; North Atlantic/CONT RISE; North Pacific/CONT RISE; North Pacific Ocean; South Atlantic/CONT RISE; South Atlantic/PLATEAU; South Pacific/Tasman Sea/PLATEAU A detailed record of the strontium-87 to strontium-86 ratio in seawater during the last 100 million years was determined by measuring this ratio in 137 well-preserved and well-dated fossil foraminifera samples. Sample preservation was evaluated from scanning electron microscopy studies, measured strontium-calcium ratios, and pore water strontium isotope ratios. The evolution of the strontium isotopic ratio in seawater offers a means to evaluate long-term changes in the global strontium isotope mass balance. Results show that the marine strontium isotope composition can be used for correlating and dating well-preserved authigenic marine sediments throughout much of the Cenozoic to a precision of +/- 1 million years. The strontium-87 to strontium-86 ratio in seawater increased sharply across the Cretaceous/Tertiary boundary, but this feature is not readily explained as strontium input from a bolide impact on land. |
| title | Strontium isotope ratios of pore waters and planktonic foraminifera from DSDP holes |
| topic | 29-277; 32-305; 39-356; 41-366; 68-502; 72-516; 72-516F; 86-577; 90-593; Antarctic Ocean/PLATEAU; Caribbean Sea/RIDGE; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg29; Leg32; Leg39; Leg41; Leg68; Leg72; Leg86; Leg90; North Atlantic/CONT RISE; North Pacific/CONT RISE; North Pacific Ocean; South Atlantic/CONT RISE; South Atlantic/PLATEAU; South Pacific/Tasman Sea/PLATEAU |
| url | https://doi.org/10.1594/PANGAEA.712599 |