/* DATA DESCRIPTION: Citation: Herb, René (1968): Relative abundances of planktonic foraminifera from surface sediments of the Drake Passage, Southern Ocean (Table 1). PANGAEA, https://doi.org/10.1594/PANGAEA.407401, Supplement to: Herb, R (1968): Recent planktonic foraminifera from sediments of the Drake Passage, Southern Ocean. Ecologae Geologicae Helvetiae, 61(2), 467-480 Abstract: Based on a qualitative and quantitative evaluation of Recent sediments samples (top 3 cm of cores as well as Petersen grab samples) from the Drake Passage, between South America and Antarctica, the distribution of planktonic foraminifera and their relation to oceanographic conditions was investigated. The Antarctic Convergence - the northern limit of the cold Antarctic Surface Water - is shown to be of major importance in controlling the distributional pattern of planktonic species as well as their total numbers. South of the convergence, Globigerina pachyderma is usually the only species found in the sediment. It occurs with abundances not greater than 6000 per gram dry sediment, and at most stations less than 100 specimens per gram of dry sediment were recovered. At a number of deep-sea stations below 3700 m depth approx. no planktonic foraminifera were found at all. It is most probable, that at least some of these stations are located below the limit of CaCO3 dissolution. North of the Antarctic Convergence planktonic foraminiferal numbers are much higher and range from 1800 to 120000 per gram of dry sediment. Eight species are the major constituents of the population: Globigerina pachyderma, Globigerina bulloides, Globogerina quinqueloba, Globigerina inflata, Globorotalia truncatolinoides, Globorotalia scitula, Globigerinita glutinata and Globigerinita uvula. The widespread occurrence of Globorotalia truncatulinoides, which in the northern hemisphere is usually a subtropical form, is especially noteworthy. Another Globigerina, morphologically similar to G. pachyderma, has been recognized frequently north of the Antarctic Convergence. Globigerina megastoma which has its type area in the Drake Passage, has been found only rarely. Orbulina universa occurs in samples from the areas of higher water temperature around the South American Continent. Globigerina pachyderma is predominantly sinistrally coiled throughout the area investigated, but a slight increase in the percentage of dextrally coiled specimens may be noticed with increasing water temperature, i.e. from south to north. Coverage: MEDIAN LATITUDE: -59.126853 * MEDIAN LONGITUDE: -63.167128 * SOUTH-BOUND LATITUDE: -64.900000 * WEST-BOUND LONGITUDE: -71.250000 * NORTH-BOUND LATITUDE: -52.016700 * EAST-BOUND LONGITUDE: -55.566700 MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m Parameter(s): Sample code/label (Sample label) * PI: Herb, René LATITUDE (Latitude) * GEOCODE LONGITUDE (Longitude) * GEOCODE Depth, bathymetric [m] (Bathy depth) * PI: Herb, René * METHOD/DEVICE: Echosounder (ECHO) DEPTH, sediment/rock [m] (Depth sed) * GEOCODE Foraminifera, planktic [#] (Foram plankt) * PI: Herb, René Globigerina pachyderma [%] (G. pachyderma) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globigerina sp. [%] (Globigerina sp.) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globigerina quinqueloba [%] (G. quinqueloba) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globigerina bulloides [%] (G. bulloides) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globigerina megastoma [%] (G. megastoma) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globorotalia inflata [%] (G. inflata) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globorotalia truncatulinoides [%] (G. truncatulinoides) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globorotalia scitula [%] (G. scitula) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globigerinita glutinata [%] (G. glutinata) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Globigerinita uvula [%] (G. uvula) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction Orbulina universa [%] (O. universa) * PI: Herb, René * METHOD/DEVICE: Counting 32-500 µm fraction License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 504 data points */ Sample label Latitude Longitude Bathy depth [m] Depth sed [m] Foram plankt [#] G. pachyderma [%] Globigerina sp. [%] G. quinqueloba [%] G. bulloides [%] G. megastoma [%] G. inflata [%] G. truncatulinoides [%] G. scitula [%] G. glutinata [%] G. uvula [%] O. universa [%] Eltanin 271 -64.9000 -68.3333 412 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 299 -63.1667 -71.2500 3777 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 266 -63.0000 -67.7000 3692 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 417 -62.6667 -56.2167 500 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 136 -62.6500 -64.0333 3734 0 1 100 0 0 0 0 0 0 0 0 0 0 Eltanin 261 -62.2167 -67.9833 3771 0 570 100 0 0 0 0 0 0 0 0 0 0 Eltanin 130 -61.7833 -61.5000 3750 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 128 -61.7500 -61.2333 4758 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 409 -61.2667 -56.1833 224 0 98 96 0 0 3 0 1 0 0 0 0 0 Eltanin 256 -61.1833 -67.8167 3977 0 1900 100 0 0 <1 0 0 0 0 0 0 0 Eltanin Tr-4-11 -61.0333 -61.0167 3468 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 990 -60.7000 -60.1167 3770 0 10 100 0 0 0 0 0 0 0 0 0 0 Eltanin 402 -60.3667 -55.5667 3537 0 7 100 0 0 0 0 0 0 0 0 0 0 Eltanin Tr-4-10 -60.0500 -61.8333 4062 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 146 -60.0167 -64.8333 3421 0 400 100 0 0 0 0 0 0 0 0 0 0 Eltanin 140 -59.9333 -65.3000 3687 0 6000 99 0 0 <1 0 <1 0 0 0 0 0 Eltanin 251 -59.2333 -69.0833 3742 0 84000 0 0 0 0 0 0 0 0 0 0 0 Eltanin 245 -59.0833 -67.0667 3485 0 105000 0 0 0 0 0 0 0 0 0 0 0 Eltanin 308 -59.0000 -71.0000 3789 0 122000 58 2 9 14 0 6 1 0 5 5 0 Eltanin 395 -58.9667 -56.0500 3775 0 16 100 0 0 0 0 0 0 0 0 0 0 Eltanin 116 -58.4667 -60.6333 3084 0 12000 97 0 <1 1 0 <1 0 0 1 <1 0 Eltanin 367 -58.1167 -59.6167 3870 0 1600 98 0 <1 1 0 1 <1 0 0 0 0 Eltanin 312 -58.0000 -70.9500 4005 0 15000 59 0 5 14 0 17 3 0 1 1 0 Eltanin PG-4-10 -57.9333 -64.7000 4108 0 6000 76 1 1 8 0 12 2 0 1 <1 0 Eltanin 391 -57.6500 -55.9333 3958 0 0 0 0 0 0 0 0 0 0 0 0 0 Eltanin 363 -57.5833 -58.9000 3500 0 34000 75 0 3 11 0 8 1 0 1 1 0 Eltanin 231 -57.1500 -69.1500 4188 0 1800 62 0 2 7 0 25 4 0 <1 0 0 Eltanin 121 -57.1000 -63.3500 3900 0 8200 82 1 3 6 <1 6 <1 0 2 <1 0 Eltanin 385 -57.0333 -56.9667 3282 0 18000 93 0 1 4 <1 1 <1 0 <1 <1 0 Eltanin P-4-8 -56.8333 -65.0000 3715 0 12000 91 <1 1 1 0 5 <1 0 1 <1 0 Eltanin 156 -56.5167 -63.2667 3927 0 7000 67 <1 8 13 0 4 <1 <1 5 3 0 Eltanin 161 -56.2000 -66.2000 878 0 35000 42 2 5 37 0 6 5 <1 3 1 <1 Eltanin 323 -56.0833 -71.1833 1900 0 100000 46 2 11 22 0 4 3 <1 5 6 <1 Eltanin Tr-4-6 -55.9000 -61.6000 4108 0 7900 67 0 0 5 0 26 1 0 0 <1 0 Eltanin 373 -53.0167 -55.8167 1962 0 50000 49 4 12 16 0 4 2 <1 7 6 0 Eltanin 559 -52.0167 -56.6333 641 0 92000 50 5 7 7 0 2 1 0 20 9 0