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Datasets of project "Climatic Variability of the Mediterranean Paleo-circulation"

Mostrando recursos 1 - 20 de 340

1. Planktonic foraminifera of the Mediterranean Sea

   Jorissen, Frans J; Asioli, Alessandra; Borsetti, Anna Maria; Capotondi, Lucilla; de Visser, J P; Hilgen, Frederik J; Rohling, Eelco J; van de Borg, K; Vergnaud-Grazzini, Colette; Zachariasse, Willem-Jan
   A high-resolution biochronology is presented for the Late Quaternary of the central Mediterranean. In the Late Pleistocene-Holocene successions three assemblage zones are distinguished on the basis of frequency patterns of planktic foraminifera. The age of these zones is determined by Accelerator Mass Spectrometry (AMS)14C dating. The zonal boundaries are dated at 12,700 yr B.P. (the end of Termination Ia) and 9600 yr B.P. (the start of Termination Ib), respectively. The AMS dates show that major changes in the planktic and benthic realms occurred synchronously over wide areas, although records of individual species may show important regional differences. In the studied...
   

2. Planktonic foraminifera of the Mediterranean Sea

   Jorissen, Frans J; Asioli, Alessandra; Borsetti, Anna Maria; Capotondi, Lucilla; de Visser, J P; Hilgen, Frederik J; Rohling, Eelco J; van de Borg, K; Vergnaud-Grazzini, Colette; Zachariasse, Willem-Jan
   A high-resolution biochronology is presented for the Late Quaternary of the central Mediterranean. In the Late Pleistocene-Holocene successions three assemblage zones are distinguished on the basis of frequency patterns of planktic foraminifera. The age of these zones is determined by Accelerator Mass Spectrometry (AMS)14C dating. The zonal boundaries are dated at 12,700 yr B.P. (the end of Termination Ia) and 9600 yr B.P. (the start of Termination Ib), respectively. The AMS dates show that major changes in the planktic and benthic realms occurred synchronously over wide areas, although records of individual species may show important regional differences. In the studied...
   

3. Stable isotope analysis on planktic foraminifera in sediment cores from the eastern Mediterranean sapropel formation

   Jenkins, Janice A; Williams, Douglas F
   During the late Pleistocene, sapropels (layers of organic-carbon rich sediment) formed throughout the entire Eastern Mediterranean Basin in close association with glacial/interglacial transitions. The current theory for the mechanism of sapropel formation involves a density stratification of the water column, due to the invasion of a large quantity of low-saline water, which resulted in oxygen depletion of the bottom waters. Most workers believe that this low-salinity water was glacial meltwater that entered the Mediterranean via the Black Sea and a series of interconnected glacial lakes, but the suggestion also has been made that the freshwater originated from the Nile River....
   

4. Stable isotope analysis on planktic foraminifera in sediment cores from the eastern Mediterranean sapropel formation

   Jenkins, Janice A; Williams, Douglas F
   During the late Pleistocene, sapropels (layers of organic-carbon rich sediment) formed throughout the entire Eastern Mediterranean Basin in close association with glacial/interglacial transitions. The current theory for the mechanism of sapropel formation involves a density stratification of the water column, due to the invasion of a large quantity of low-saline water, which resulted in oxygen depletion of the bottom waters. Most workers believe that this low-salinity water was glacial meltwater that entered the Mediterranean via the Black Sea and a series of interconnected glacial lakes, but the suggestion also has been made that the freshwater originated from the Nile River....
   

5. Distribution of planktonic foraminifera of sediment core SH1972_7

   Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
   

6. Distribution of planktonic foraminifera of sediment core SH1972_7

   Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
   

7. Distribution of planktonic foraminifera of sediment core SH1972_6

   Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
   

8. Distribution of planktonic foraminifera of sediment core SH1972_6

   Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
   

9. Distribution of planktonic foraminifera of sediment core SH1972_3

   Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
   

10. Distribution of planktonic foraminifera of sediment core SH1972_3

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

11. Distribution of planktonic foraminifera of sediment core SH1972_2

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

12. Distribution of planktonic foraminifera of sediment core SH1972_2

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

13. Distribution of planktonic foraminifera of sediment core SH1972_17

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

14. Distribution of planktonic foraminifera of sediment core SH1972_17

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

15. Distribution of planktonic foraminifera of sediment core SH1972_16

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

16. Distribution of planktonic foraminifera of sediment core SH1972_16

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

17. Distribution of planktonic foraminifera of sediment core SH1972_13

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

18. Distribution of planktonic foraminifera of sediment core SH1972_13

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

19. Distribution of planktonic foraminifera of sediment core SH1972_12

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A
    

20. Distribution of planktonic foraminifera of sediment core SH1972_12

    Buckley, H A; Johnson, Leonard; Shackleton, Nicholas J; Blow, R A