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Detalles Bibliográficos
Autores principales: Ronge, Thomas A, Nürnberg, Dirk, Tiedemann, Ralf
Formato: Dataset Open Access
Lenguaje:en
Publicado: PANGAEA 2018
Materias:
202-1236A; 202-1236B; 202-1236C; AGE; AWI_Paleo; Calculated, according to Anand et al. (2003); Calculated from Mg/Ca ratios (Groeneveld and Chiessi, 2011); Depth, composite; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Globorotalia inflata, Magnesium/Calcium ratio; Globorotalia tumida, Magnesium/Calcium ratio; Joides Resolution; Leg202; Mixed layer temperature; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Photic Zone temperature; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Sample code/label; Sea surface temperature, annual mean; South Pacific Ocean; SPP1158; Trilobatus sacculifer, Manganese/Calcium ratio
Acceso en línea:https://doi.org/10.1594/PANGAEA.896166
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Tabla de Contenidos:
  • Here we use Mg/Ca temperature estimates from subsurface and thermocline dwelling foraminifera to reconstruct the meridional Plio‐Pleistocene evolution of the Southeast Pacific thermocline, in relation to atmospheric circulation changes. Our data indicate a change in the thermocline, responding to the northward displacement of the Intertropical Convergence Zone/South Pacific High system between ~3.8 and 3.5 Ma. After 3.5 Ma, we record a second major phase of thermocline shoaling, which points to the ITCZ/SPH‐system movement toward its modern position along with the gradual cooling of the Northern Hemisphere and its associated glaciation.

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