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planktonic percentages

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Gamma value, carbonate value, <b>planktonic</b> <b>percentage</b> (% of total fauna), fau...
Published: 01 October 2004
F igure 4. Gamma value, carbonate value, planktonic percentage (% of total fauna), faunal diversity and frequency of some benthic foraminifera (% of total benthic forms) for Biofacies 1 and 2. Standardized faunal diversities were calculated using the Margalef diversity calculation (from
Image
Gamma value, carbonate value, <b>planktonic</b> <b>percentage</b> (% of total fauna) and ...
Published: 01 October 2004
F igure 5. Gamma value, carbonate value, planktonic percentage (% of total fauna) and frequency of some benthic foraminifera (% of total benthic forms) for Biofacies 3, 4 and 5.
Journal Article
Journal: GSA Bulletin
Published: 01 March 1982
GSA Bulletin (1982) 93 (3): 246-251.
..., either remained constant or decreased due to the decrease of shallow-water species with depth. Along with this mixed assemblage, there was a planktonic foraminiferal content in the shallowest assemblage of as much as 25%. Normally, planktonic percentage of similar water depths is 0%. Seasonality had...
Journal Article
Published: 01 January 1990
Journal of Foraminiferal Research (1990) 20 (1): 71-83.
...Bruce W. Hayward Abstract Geohistory analyses of Cenozoic marine basins rely heavily on the precision of foraminiferal dating and paleodepth determinations. A rapid method of paleodepth assessment has been devised for the New Zealand region, using a combination of planktonic percentage...
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Distribution of <b>percentages</b> of reworked (fossil) <b>planktonic</b> foraminifera (v...
Published: 01 October 2012
Figure 7 Distribution of percentages of reworked (fossil) planktonic foraminifera (values indicated for each sample site); 15% contour line is dashed.
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Figure 5. <b>Percentages</b> of the foraminiferal fauna as <b>planktonic</b> specimens. S...
in > PALAIOS
Published: 01 January 2010
Figure 5. Percentages of the foraminiferal fauna as planktonic specimens. Stratigraphic thicknesses along the X axis, which shows the relative positions of samples and outcrops (OC1–OC4), are not to scale.
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Variation of the P&#x2F;T (<b>Planktonic</b>&#x2F;Total foraminifera) <b>percentages</b> in the pre...
Published: 01 June 2003
TEXT-FIGURE 6 Variation of the P/T (Planktonic/Total foraminifera) percentages in the pre-CIE-interval (Subzone P5a) in different sections along the Upper Nile Valley. The upper part of Subzone P5a is only shown in the Dababiya sections (B–C). Note the marked increase in the planktonic
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Variation of the P (<b>Planktonic</b>) &#x2F;B (Benthonic) <b>percentages</b> in the pre-, wit...
Published: 01 June 2003
TEXT-FIGURE 10 Variation of the P (Planktonic) /B (Benthonic) percentages in the pre-, within and post-CIE-interval in relatively deeper water sections along the Upper Nile Valley (Qreiya and Dababiya sections). Note the reversed relation of these percentages below and above the CIE-interval
Journal Article
Published: 01 October 2008
Journal of Foraminiferal Research (2008) 38 (4): 357-371.
... of planktonic foraminifera per gram), weight of dry bulk sediment, percentage of coarse fraction (>38 μm) by weight for Hole 1209B. Raw data are listed in Appendix 1. The gray bands at 213.48, 208.54, 202.13 and 195.76 rmcd indicate shell fragmentation with values >35%. Note that high values of shell...
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Journal Article
Published: 01 April 2004
Journal of Foraminiferal Research (2004) 34 (2): 109-129.
... and radiolarian percentages have been evaluated according to the diagrams for visual percentage extimation in sedimentary rocks given by Baccelle and Bosellini (1965 , Fig. 6 , Table 1 ). A total of 26 planktonic foraminiferal species were identified. Species distribution was semi-quantitatively estimated...
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Journal Article
Journal: Geology
Published: 01 April 1999
Geology (1999) 27 (4): 355-358.
...Kunio Kaiho; Marcos A. Lamolda Abstract We present data demonstrating constant δ 13 C values in 12 common planktonic foraminiferal species, which constitute >99% of the total specimens (>63 mu m) in assemblages collected across the Cretaceous-Tertiary (K-T) boundary at Caravaca, Spain...
Journal Article
Journal: GSA Bulletin
Published: 01 January 1970
GSA Bulletin (1970) 81 (1): 275-282.
...) and relatively high concentrations of calcitic shells (planktonic foraminifera). In the oxygenated region above sill depth there are no aragonitic shells and concentrations of planktonic foraminifera are much reduced. Percentages of species, size classes, and morphological variants of planktonic foraminifera...
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<b>Percentage</b> frequencies of the most abundant warm and cold <b>planktonic</b> forami...
Published: 01 October 2018
Fig. 8 Percentage frequencies of the most abundant warm and cold planktonic foraminifer indicators for the Gülnar East section plotted against the stratigraphic log. G. gr. ruber includes the percentage frequencies of G. ruber and G. elongatus ; G. gr. quadrilobatus includes
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The <b>percentage</b> of <b>planktonic</b> foraminifera in each sample and the average pe...
Published: 01 January 2015
Table 1 The percentage of planktonic foraminifera in each sample and the average percentage of planktonic foraminifera per unit type with standard deviation (σ) and coefficient of variation (c v ).
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A) Flux (shells m −2  day −1 ) and B) <b>percentage</b> data for the <b>planktonic</b> fo...
Published: 01 July 2003
F igure 9. A) Flux (shells m −2 day −1 ) and B) percentage data for the planktonic foraminifers G. ruber (pink) and G. bulloides.
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Figure 7. Plot of <b>percentage</b> <b>planktonic</b> and benthic diatom species as a fun...
Published: 01 February 2003
Figure 7. Plot of percentage planktonic and benthic diatom species as a function of depth in the lower part of Core 1
Journal Article
Published: 01 October 2012
Journal of Foraminiferal Research (2012) 42 (4): 305-326.
...Figure 7 Distribution of percentages of reworked (fossil) planktonic foraminifera (values indicated for each sample site); 15% contour line is dashed. ...
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Journal Article
Published: 01 January 2001
Journal of Foraminiferal Research (2001) 31 (1): 25-32.
... repeated advances and retreats of the Polar Front. The late Holocene is characterized by the highest percentages of the planktonic foraminiferal species N. pachyderma dextral, comparable to percentages of this species during early OIS 5 and late OIS 7, suggesting that the Polar Front is situated farther...
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Journal Article
Published: 01 July 2001
Journal of Micropalaeontology (2001) 20 (1): 29-30.
...CHRIS J. WINTER; PAUL N. PEARSON Abstract We have measured the coiling directions of approximately 14 000 Miocene planktonic Foraminifera shells belonging to three lineages ( Dentoglobigerina altispira, Paragloborotalia mayeri and Fohsella spp.) from sites in the Pacific (ODP Site 871) and Atlantic...
FIGURES
Journal Article
Published: 01 December 2002
Journal of Micropalaeontology (2002) 21 (2): 137-147.
... of foraminifera per gram of dry sediment. The Planktonic Fragmentation Index (PFI) was recorded in the >150 µm size-fraction and was calculated as the percentage of test fragments relative to whole planktonic foraminifera+test fragments. Species diversity was recorded in terms of the alpha index ( Fisher et...
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