Paleontology of the Toa Baja. number sign. 1 well, Puerto Rico

Journal Article · Thu Feb 28 23:00:00 EST 1991 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/91GL00402· OSTI ID:5597828

Montgomery, H ^[1]; Robinson, E ^[2]; Saunders, J ^[3]; Van den Bold, W ^[4]

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1. Univ. of Puerto Rico, Mayaguez (Puerto Rico)
2. Univ. of West Indies, Kingston (Jamaica)
3. Natural History Museum, Basel (Switzerland)
4. Louisiana State Univ., Baton Rouge (United States)

The Toa Baja well penetrated 585.2 m of fossiliferous Oligocene and Miocene limestone, sandstone, and shale above 2119 m of Eocene, dominantly volcaniclastic strata. Oligocene and Miocene rocks were deposited on a broad, shallow shelf. The unconformity between Eocene and Oligocene strata spans at least the Late Eocene, and probably part of the Early Oligocene at Toa Baja. Below the unconformity, unfossiliferous volcaniclastic and igneous rocks are interstratified with fossiliferous limestone beds containing Middle and possibly late Early Eocene planktic foraminifera probably deposited in deep water. No Paleocene or Cretaceous fossils were recovered.

• OSTI ID: 5597828
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 18:3; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

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