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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
1988
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.743850 |
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| _version_ | 1867170458273579008 |
|---|---|
| author | Doyle, P S |
| author_facet | Doyle, P S |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The pattern of ichthyolith distribution established in sequences with stratigraphies based on calcareous or siliceous microfossils is used to provide age correlations for three deep-sea pelagic clay intervals that lack the better known microfossils. At Site 637, approximately 25 m of brown clay in Cores 103-637A-21R through 103-637A-23R underlies upper Miocene sediments and is of Paleocene to early Eocene age. At Site 639, 1.7 m of brown clay in Core 103-639C-2R is Eocene to Oligocene. At Site 640, 3.5 m of clay in Cores 103-640A-1R and 103-640A-2R contains a Cretaceous to Paleocene sequence, with the Cretaceous/Tertiary boundary between 84 and 103 cm in Section 103-640A-2R-1. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_743850 |
| institution | PANGAEA |
| language | en |
| publishDate | 1988 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Cretaceous-Tertiary ichthyoliths of brown clay intervals Doyle, P S 103-637A; 103-639C; 103-640A; 12-118; 12-119; 40-361; DRILL; Drilling/drill rig; Glomar Challenger; Joides Resolution; Leg103; Leg12; Leg40; North Atlantic/PLAIN; North Atlantic/SEAMOUNT; North Atlantic Ocean; Ocean Drilling Program; ODP; South Atlantic Ocean The pattern of ichthyolith distribution established in sequences with stratigraphies based on calcareous or siliceous microfossils is used to provide age correlations for three deep-sea pelagic clay intervals that lack the better known microfossils. At Site 637, approximately 25 m of brown clay in Cores 103-637A-21R through 103-637A-23R underlies upper Miocene sediments and is of Paleocene to early Eocene age. At Site 639, 1.7 m of brown clay in Core 103-639C-2R is Eocene to Oligocene. At Site 640, 3.5 m of clay in Cores 103-640A-1R and 103-640A-2R contains a Cretaceous to Paleocene sequence, with the Cretaceous/Tertiary boundary between 84 and 103 cm in Section 103-640A-2R-1. |
| title | Cretaceous-Tertiary ichthyoliths of brown clay intervals |
| topic | 103-637A; 103-639C; 103-640A; 12-118; 12-119; 40-361; DRILL; Drilling/drill rig; Glomar Challenger; Joides Resolution; Leg103; Leg12; Leg40; North Atlantic/PLAIN; North Atlantic/SEAMOUNT; North Atlantic Ocean; Ocean Drilling Program; ODP; South Atlantic Ocean |
| url | https://doi.org/10.1594/PANGAEA.743850 |