A series of fossil spring deposits are exposed along the Dixie Valley fault just south of the producing geothermal field, in an area now characterized by active fumaroles and steaming ground. These deposits are composed of both travertine and sinter that have trapped pollen and other plant material during their formation. Radiocarbon dates on the organic material indicate that the youngest hot ...

A green alga, Chlorococcum sp. (Chlorococcales, Chlorophyceae), was grown from scrapings of the travertine rocks outlet stream Emerald Pool, Khlong Thom Nuea, District Krabi province in Southern Thailand – a classic karstic habitat. It recalcitrant alga: organic solvents did not extract chlorophyll (Chl) algae very well but heated Dimethylsulphoxide (DMSO) effective. Rapid light curve PAM exper...

Mithraea, religious Roman buildings, are very common in Italian archeological sites. There sixteen Ostia Antica (Rome, Italy)The poor state of conservation, due to the intrinsic environmental conditions, characterized them: they consist open-air museums and caves simultaneously. These places worship by presence heterogeneous materials, such as wall building materials (bricks mortars) others use...

Abstract The goal of this article is to discuss the significance archaeological evidence from sites La Draga (Banyoles, Spain) and Coves del Fem (Ulldemolins, Spain), in context neolithisation Northeastern Iberia. 14 C dates have been analysed using Bayesian statistics. stratigraphy covers transition between last hunter–gatherers region first farmers. chronological sequence approximately 1,300 ...