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Gervais, Elisabeth (1996): Cretaceous to Quaternary planktonic foraminifera in ODP Leg 149 holes. PANGAEA, https://doi.org/10.1594/PANGAEA.761652, Supplement to: Gervais, E (1996): Cretaceous to Quaternary planktonic foraminiferal biostratigraphy of the Iberia Abyssal Plain. In: Whitmarsh, RB; Sawyer, DS; Klaus, A & Masson, DG (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 149, 165-192, https://doi.org/10.2973/odp.proc.sr.149.210.1996

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Abstract:
This paper presents the results of a biostratigraphic analysis, based on planktonic foraminifers, of Ocean Drilling Program Leg 149 Sites 897- 900 in the Iberia Abyssal Plain, off the coast of Portugal. Dissolution and changes in water-mass temperatures affect the quality of biozonation in some levels of the Pliocene, Miocene, and Paleocene/lower Eocene. Important hiatuses occur in the upper Cretaceous, Paleocene to middle/lower upper? Eocene and uppermost middle to lower upper Miocene in all the sites studied. A major hiatus in Hole 898A, spanning the Pliocene, late Miocene and the latest part of the middle Miocene, could be caused by erosion triggered by climatic cooling and/or erosion connected with middle-late Miocene local tectonic activity.
Project(s):
Coverage:
Median Latitude: 40.733325 * Median Longitude: -11.969513 * South-bound Latitude: 40.683200 * West-bound Longitude: -12.475200 * North-bound Latitude: 40.838800 * East-bound Longitude: -11.604200
Date/Time Start: 1993-03-31T02:15:00 * Date/Time End: 1993-05-22T15:00:00
Event(s):
149-897A * Latitude: 40.838700 * Longitude: -12.474000 * Date/Time Start: 1993-03-31T02:15:00 * Date/Time End: 1993-04-01T07:30:00 * Elevation: -5331.0 m * Penetration: 55.2 m * Recovery: 17.37 m * Location: North Atlantic Ocean * Campaign: Leg149 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 6 cores; 55.2 m cored; 0 m drilled; 31.5 % recovery
149-897C * Latitude: 40.838800 * Longitude: -12.474000 * Date/Time Start: 1993-04-02T04:00:00 * Date/Time End: 1993-04-09T16:00:00 * Elevation: -5326.0 m * Penetration: 744.9 m * Recovery: 352.81 m * Location: North Atlantic Ocean * Campaign: Leg149 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 73 cores; 695 m cored; 49.9 m drilled; 50.8 % recovery
149-897D * Latitude: 40.838500 * Longitude: -12.475200 * Date/Time Start: 1993-04-09T16:00:00 * Date/Time End: 1993-04-17T12:00:00 * Elevation: -5327.0 m * Penetration: 837.2 m * Recovery: 117.94 m * Location: North Atlantic Ocean * Campaign: Leg149 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 25 cores; 241.2 m cored; 596 m drilled; 48.9 % recovery
Size:
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