INVESTIGADORES
CORONATO andrea Maria Josefa
artículos
Título:
Late Pleistocene and Holocene palaeoenvironmental changes in central Tierra del Fuego (~54S) inferred from pollen analysis
Autor/es:
MUSOTTO,LORENA LAURA; BORROMEI, ANA MARÍA; CORONATO, ANDREA; BRIAN MENOUNOS; GERALD OSBORN; ROBERT MARR
Revista:
VEGETATION HISTORY AND ARCHAEOBOTANY
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2015
ISSN:
0939-6314
Resumen:
A pollen record was obtained from a coringsite at La Correntina mire (54330S, 66590W, 206 m a.s.l.)to the east of Lago Fagnano, centre of Tierra del Fuego.The results indicate that the valley bottom was free of iceshortly before 15,400 cal BP. Pioneer vegetation includeddwarf shrub heaths, grasses and herbs with sparsely distributedNothofagus trees, indicative of dry conditions.Nothofagus expanded by 10,000 cal BP and the foreststeppeecotone was established by 9,400 cal BP, implyingwarm conditions and an increase in available moisture.After ca. 5,000 cal BP, the development of a closed-canopyforest is interpreted as the result of wetter and colderconditions. After 3,000 cal BP, Nothofagus forest became more open, and by about 400 cal BP there was a furtherdecline of the forest. A closed-canopy Nothofagus forestre-established after 400 cal BP
