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Datasets of project "Cape Roberts Project"

Mostrando recursos 1 - 20 de 442

  1. Age tie points and geochemistry of sediment cores from the Antarctic continental margin

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk
    Few high-latitude terrestrial records document the timing and nature of the Cenozoic "Greenhouse" to "Icehouse" transition. Here we exploit the bulk geochemistry of marine siliciclastic sediments from drill cores on Antarctica's continental margin to extract a unique semiquantitative temperature and precipitation record for Eocene to mid-Miocene (~54-13 Ma). Alkaline elements are strongly enriched in the detrital mineral fraction in fine-grained siliciclastic marine sediments and only occur as trace metals in the biogenic fraction. Hence, terrestrial climofunctions similar to the chemical index of alteration (CIA) can be applied to the alkaline major element geochemistry of marine sediments on continental margins in...

  2. Age tie points and geochemistry of sediment cores from the Antarctic continental margin

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk
    Few high-latitude terrestrial records document the timing and nature of the Cenozoic "Greenhouse" to "Icehouse" transition. Here we exploit the bulk geochemistry of marine siliciclastic sediments from drill cores on Antarctica's continental margin to extract a unique semiquantitative temperature and precipitation record for Eocene to mid-Miocene (~54-13 Ma). Alkaline elements are strongly enriched in the detrital mineral fraction in fine-grained siliciclastic marine sediments and only occur as trace metals in the biogenic fraction. Hence, terrestrial climofunctions similar to the chemical index of alteration (CIA) can be applied to the alkaline major element geochemistry of marine sediments on continental margins in...

  3. (Table S5) Geochemistry of sediment core CIROS-1

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk

  4. (Table S5) Geochemistry of sediment core CIROS-1

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk

  5. (Table S1) Geochemistry of Cape Roberts Project sediment cores CRP-1, CRP-2, and CRP-3

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk

  6. (Table A4) Age tie points for CIROS-1 drillhole

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk

  7. (Table A4) Age tie points for CIROS-1 drillhole

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk

  8. (Table A3) Age tie points for Cape Roberts Project (CRP) drillholes, sediment cores CPR-1, CPR-2, and CPR-3

    Passchier, Sandra; Bohaty, Steven M; Jiménez-Espejo, Francisco J; Pross, Jörg; Röhl, Ursula; van de Flierdt, Tina; Escutia Dotti, Carlota; Brinkhuis, Henk

  9. Isotopic composition of sulphur in pyrite from sediment core CRP-2A

    Parnell, John

  10. Isotopic composition of sulphur in pyrite from sediment core CRP-2A

    Parnell, John

  11. Knochenjob auf dünnem Eis (film, 37 min.)

    Hertling, Peter K; Scheffler, Arno

  12. Knochenjob auf dünnem Eis (film, 37 min.)

    Hertling, Peter K; Scheffler, Arno

  13. Clay mineralogy of Cape Roberts sediment cores

    Ehrmann, Werner; Setti, Massimo; Marinoni, L
    The clay mineral assemblages of the ca. 1600 m thick Cenozoic sedimentary succession recovered at the CRP-1, CRP-2/2A and CRP-3 drill sites off Cape Roberts on the McMurdo Sound shelf, Antarctica, were analysed in order to reconstruct the palaeoclimate and the glacial history of this part of Antarctica. The sequence can be subdivided into seven clay mineral units that reflect the transition from humid to subpolar and polar conditions. Unit I (35-33.6 Ma) is characterised by an almost monomineralic assemblage consisting of well crystalline, authigenic smectite, and therefore does not allow a palaeoclimatic reconstruction. Unit II (33.6-33.1 Ma) has also...

  14. Clay mineralogy of Cape Roberts sediment cores

    Ehrmann, Werner; Setti, Massimo; Marinoni, L
    The clay mineral assemblages of the ca. 1600 m thick Cenozoic sedimentary succession recovered at the CRP-1, CRP-2/2A and CRP-3 drill sites off Cape Roberts on the McMurdo Sound shelf, Antarctica, were analysed in order to reconstruct the palaeoclimate and the glacial history of this part of Antarctica. The sequence can be subdivided into seven clay mineral units that reflect the transition from humid to subpolar and polar conditions. Unit I (35-33.6 Ma) is characterised by an almost monomineralic assemblage consisting of well crystalline, authigenic smectite, and therefore does not allow a palaeoclimatic reconstruction. Unit II (33.6-33.1 Ma) has also...

  15. Documentation of sediment core CRP-3 from core box images

    CRP Science Team

  16. Documentation of sediment core CRP-3 from core box images

    CRP Science Team

  17. Description of sediment core CRP-1

    CRP Science Team

  18. Description of sediment core CRP-1

    CRP Science Team

  19. Documentation of sediment core CRP-1 from core box images

    CRP Science Team

  20. Documentation of sediment core CRP-1 from core box images

    CRP Science Team

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