Stratigraphic and spatial variability in shell middens: microfacies identification at the ethnohistoric site Tunel VII (Tierra del Fuego, Argentina)

Nutrient cycling in Nothofagus pumilio forests along an altitudinal gradient in Tierra del Fuego, Argentina

Nothofagus pumilio (lenga) forests form monocultures from sea level to timberline in Tierra de Fuego, Argentina. Past studies suggested that the life form change from erect forest to krummholz had advantages to forest function. Aboveground net primary productivity (NPP) and organic matter production per unit leaf area and growing season day were higher in krummholz than in adjacent short erect ...

Paleoseismic Observations of an Onshore Transform Boundary: the Magallanes-fagnano Fault, Tierra Del Fuego, Argentina

We present preliminary information on the geomorphologic features and paleoseismic record associated with the ruptures of two Ms 7.8 earthquakes that struck Tierra del Fuego and the southernmost continental margin of South America on December 17, 1949. The fault scarp was surveyed in several places east of Lago Fagnano and a trench across a secondary fault trace of the Magallanes-Fagnano fault ...

"Twenty years of Ethnoarchaeological research in Tierra del Fuego: some thoughts for European Shell-Midden Archaeology."

Introduction Twenty years of ethnoarchaeological research in Tierra del Fuego on hunterr-fisher-gatherers (Fig. 1) has led us to reflect on some of the assumptions made in coastal archaeology, and specifically on the in interpretation of mesolithic shell middens. Contrasting the results from archaeological and ethnographic work on the same group is a way to of rewviewing the potential weak area...

Variations of Mesozooplankton Composition in a Eutrophicated Semi-enclosed System (encerrada Bay, Tierra Del Fuego, Argentina)

Alkali basalts and enclosed ultramafic xenoliths near Ushuaia, Tierra Del Fuego, Argentina

At the southernmost part of Tierra del Fuego a few outcrops and erratic boulders of alkali basaltic rocks with ultramafic enclaves have been studied. Alkali basalt plugs or pipes hitherto identified are scarce, and host rocks are constituted by slates that belong to Mesozoic deposition. The petrography, texture and composition of the basalt and xenoliths were investigated by petrographic micros...