. "Varves" . . "Analyse pollinique de la s\u00E9quence lacustre Pl\u00E9istoc\u00E8ne de Pi\u00E0nico-S\u00E8llere (Italie)" . . . "Analyse pollinique de la s\u00E9quence lacustre Pl\u00E9istoc\u00E8ne de Pi\u00E0nico-S\u00E8llere (Italie)" . "Pollen analysis on the Pleistocene lacustrine succession of Pi\u00E0nico-S\u00E8llere (Italy)" . . "Palynologie -- Alpes (Italie)" . . "Analisi pollinica della sequenza lacustre pleistocenica di Pi\u00E0nico-S\u00E8llere (Italia)" . . . . "Text" . "Th\u00E8ses et \u00E9crits acad\u00E9miques" . . . . "Pollen analysis of the sedimentary succession of Pi\u00E0nico-S\u00E8llere, integrated with stratigraphical, sedimentological, paleontological, geochronological studies, provided evidence of environmental changes during a complex interglacial of the Middle Pleistocene. The succession includes lacustrine deposits (Pi\u00E0nico Formation) consisting of 4 units, of which one annually laminated (calcite varves). The time span represented by the lacustrine deposits is about 18,000 years. These deposits contain a tephra layer, which has a K/Ar date of 779\u00B113 ka. Pollen analysis indicates the presence of a long time period dominated by mesothermophilous forest vegetation, followed by alternating conifers/steppic grasslands and broad-leaved forests. The transitions between different vegetation assemblages occurred over 200-300 years. The interglacial represented by the varved sequence has been correlated with the marine oxygen isotopic stage 19 and with the Cromerian complex of the continental stratigraphy." . . "L'analyse pollinique de la s\u00E9quence s\u00E9dimentaire de Pi\u00E0nico-S\u00E8llere, int\u00E9gr\u00E9e avec des \u00E9tudes stratigraphiques, s\u00E9dimentologiques, pal\u00E9ontologique et g\u00E9ochronologiques, a permis de reconstituer les changements environnementaux au cours d'un complexe interglaciaire du Pl\u00E9istoc\u00E8ne Moyen. La succession inclut des d\u00E9p\u00F4ts lacustres (Formation de Pi\u00E0nico) qui comprennent 4 unit\u00E9s, dont une lamin\u00E9e annuellement (varves carbonat\u00E9es). La dur\u00E9e de l'intervalle couvert par les d\u00E9p\u00F4ts lacustres avoisine 18 000 ans. La datation K/Ar d'un t\u00E9phra a donn\u00E9 un \u00E2ge de 779\u00B113 ka. L'analyse pollinique a montr\u00E9 l'existence d'une longue p\u00E9riode domin\u00E9e par des for\u00EAts m\u00E9sothermophiles, suivie par des phases \u00E0 Pinus/prairies steppiques alternant avec des phases \u00E0 caducifoli\u00E9es. Les transitions entre diff\u00E9rents types de v\u00E9g\u00E9tation ont lieu en 200-300 ans. L'interglaciaire couvert par la s\u00E9quence varv\u00E9e a \u00E9t\u00E9 corr\u00E9l\u00E9 avec le stage isotopique marin 19 et au complex Crom\u00E9rien de la stratigraphie continentale." . "Pl\u00E9istoc\u00E8ne moyen -- Alpes (Italie)" . . "2003" . .