(Table T1) Strontium isotopic composition and ages of limestone samples from ODP Hole 180-1118A
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2001
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| _version_ | 1867171790010187776 |
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| author | Allan, Tony Robertson, Alastair H F Sharp, Timothy R Trotter, Julie |
| author_facet | Allan, Tony Robertson, Alastair H F Sharp, Timothy R Trotter, Julie |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Limestone from Unit VI (857.1-859.15 meters below seafloor) collected at Site 1118 contains a planktonic foraminiferal fauna indicating a latest Miocene to early Pliocene age. Globorotalia tumida is recorded in Sample 180-1118A-68R-4, 46-48 cm, indicating an early Pliocene (N18) age at this level (J. Resig, pers. comm., 2000). Based on their known range in the western Papuan Basin, the presence of (rare) Lepidocyclina and common Amphistegina in some samples suggests that abundant shallow-water bioclastic debris present in these limestones may be reworked from older, possibly middle or early late Miocene sediments. Four samples were selected for whole-rock strontium isotopic analysis to further investigate this possibility. A petrographic examination of samples analyzed was also conducted. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_787037 |
| institution | PANGAEA |
| language | en |
| publishDate | 2001 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table T1) Strontium isotopic composition and ages of limestone samples from ODP Hole 180-1118A Allan, Tony Robertson, Alastair H F Sharp, Timothy R Trotter, Julie 180-1118A; Age, dated; Age, strontium isotope, Oslick et al. (1994); DEPTH, sediment/rock; DRILL; Drilling/drill rig; Joides Resolution; Leg180; Ocean Drilling Program; ODP; Sample code/label; Solomon Sea; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error Limestone from Unit VI (857.1-859.15 meters below seafloor) collected at Site 1118 contains a planktonic foraminiferal fauna indicating a latest Miocene to early Pliocene age. Globorotalia tumida is recorded in Sample 180-1118A-68R-4, 46-48 cm, indicating an early Pliocene (N18) age at this level (J. Resig, pers. comm., 2000). Based on their known range in the western Papuan Basin, the presence of (rare) Lepidocyclina and common Amphistegina in some samples suggests that abundant shallow-water bioclastic debris present in these limestones may be reworked from older, possibly middle or early late Miocene sediments. Four samples were selected for whole-rock strontium isotopic analysis to further investigate this possibility. A petrographic examination of samples analyzed was also conducted. |
| title | (Table T1) Strontium isotopic composition and ages of limestone samples from ODP Hole 180-1118A |
| topic | 180-1118A; Age, dated; Age, strontium isotope, Oslick et al. (1994); DEPTH, sediment/rock; DRILL; Drilling/drill rig; Joides Resolution; Leg180; Ocean Drilling Program; ODP; Sample code/label; Solomon Sea; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error |
| url | https://doi.org/10.1594/PANGAEA.787037 |