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Unless rigorous pretreatment protocols have been used, radiocarbon dates should be assumed to be inaccurate until proven otherwise in this region.Evidence for the late survival of Neanderthals in southern Iberia is limited to one possible site, Cueva Antón, and alternative models of human occupation of the region should be considered.
Hearths are common features of many eras going back to prehistoric campsites, and may be either lined with a wide range of materials, such as stone, or left unlined.
They were used for cooking, heating, and the processing of some stone, wood, faunal, and floral resources.
Occasionally site formation processes—e.g., farming or excavation—deform or disperse hearth features, making them difficult to identify without careful study.
Lined hearths are easily identified by the presence of fire-cracked rock, often created when the heat from the fires inside the hearths chemically altered and cracked the stone.
The radiocarbon lab at Geochron uses gas proportional counters to measure methane derived from relatively small samples.
We also offer liquid scintillation analysis using an extra low background Quantulus 1220 for high precision measurements on benzene.
In a medieval hall, the hearth commonly stood in the middle of the hall, with the smoke rising through the room to a smoke hole in the roof.
Later, such hearths were moved to the side of the room and provided with a chimney.
For radiocarbon dating to be possible, the material must once have been part of a living organism.Tags: Adult Dating, affair dating, sex dating