lag is a general term applied to coarse grained (> 2 mm), hard, but partially weathered rockfragments, which are concentrated at the surface through attrition of finer materials. based on morphology,mineralogy and the origin of lag from the cobar region of australia, lag may be conveniently grouped intothree broad morpho-mineralogical categories; (a) those with a rough, blocky, lithic morpholog...

This paper is a preliminary presentation of the large settlement which has been just recently discovered at Pyrgos-Agia Marina, thanks to intensive field survey, geophysical prospections and HD documentation sections left behind by mechanical terracing for construction works. The discovery larger section other remains indicates presence an early, long-lived, nucleated on west bank Pyrgos river....

Tributary rivers can contribute significantly to alluvial-plain construction by supplying large volumes of clastic material. Their relation the main axial river strongly influences sediment deposition and preservation. The Po Plain is fed River a dense network transverse tributaries draining nearby Alpine Apennine chains. Stratigraphic, sedimentological, petrographic geochemical analyses on 38 ...

Archaeological evidences are still missing: a comment on Fariña et al. Arroyo del Vizcaíno site, Uruguay. Fariñ a et al. [1] suggest the possibility of human presence ca 30 ka in the Arroyo del Vizcaíno site (AVS) (southern Uruguay). This is based mainly on the record of cutmarks made by human artefacts on Pleistocene animal bones. They also inform of the finding of a single tiny stone tool and...

Lithics and cut-marked mammal bones, excavated from the paleo-lake Marathousa 1 (MAR-1) sediments in Megalopolis Basin, southern Greece, indicate traces of hominin activity occurring along a paleo-shoreline ca. 444,000 years (444 ka) ago. However, local environment climatic conditions promoting area during MIS12 glacial remain largely unknown. In order to reconstruct paleo-environment including...

T volume includes papers from a conference held at the McDonald Institute for Archaeological Research in 2010. The aim of the conference was to examine the histories of populations on the African continent through the use of a variety of data sets—archaeology, genetics, paleoenvironments, and paleontology—to reach a more nuanced understanding of hominin skeletal and behavioral evolution, how po...

Abstract Samples and documentation of outcrops drillings, facies analysis, whole rock geochemistry radiometric ages have been employed to re-evaluate the Late Carboniferous Tharandt Forest caldera (TFC) co-genetic Niederbobritzsch granite (NBG) in eastern Erzgebirge near Dresden, Germany. The c. 52 km 2 TFC harbours strongly welded ignimbrites with a preserved minimum thickness 550 m. Compositi...

Using a number of Middle and Late Pleistocene sites with good evidence for fire, Roebroeks and Villa (1) argued that the habitual use of fire did not become part of hominin technological repertoires until the latter half of the Middle Pleistocene. We are pleased to see other researchers taking a more critical view of the nature and quality of the available evidence for early fire use and questi...

d’Errico et al.’s (1) conclusion that cultural differences between the Still Bay (SB) and the Howiesons Poort (HP) sites in South Africa (SA) are not accounted for by the risk hypothesis (2) is premature. The risk hypothesis is well-modeled by interaction between risk and mobility as a driver for artifact complexity measured by (number of technounits)/(number of subsistants) = α + βR + e, where...

Introduction: The north polar sand sea of Mars is the type locality for the silca-rich TES Surface Type 2 (ST2) unit [1], but the nature of ST2 is not well constrained. Possible compositions for ST2 include highSi volcanic glass, zeolites, and high-Si amorphous phases [1-4]. As no major volcanic edifices have been conclusively identified in the north polar region (NPR), it has been suggested th...