No Amerindian ceramics and a single chert
flake were found.
I replaced the commercial flint in my .50-caliber Thompson/Center Hawken flintlock with part of one of Sam's chert
points, then used this hybridized tool to take a fine doe.
XRF data show that the major component of the shell was silica (>90 wt%), at higher concentration than in the surrounding rocks (<60 wt% in the black shales and <90 wt% in the green chert
) (Table 1).
Oxygen isotope measurements on glass and chert
samples were carried out according to well-established techniques.
Two periods of searing-hot hydrothermal activity had cooked both the seafloor cherts
and the surface glacial sediments.
Among the stone types, only barnbal (dolerite) and garttamalga (chert
) were identified as being sought out as raw material sources for stone tools.
Debitage: The C1 debitage assemblage contains 1152 items and is dominated in numbers by flake fragments and secondary retouch flakes of chert
and chalcedony (Table 6).
In the case of the ex-situe oil shale mining; the oil shale in the study area froms from the Muwaqqar (Chalk Marl) Formation; This Formation is composed of marl, chalky limestone, micritic limestone and chert
and overlaid the main aquifer in the study area.
The work begins with three essays on comparative studies in Mayan stone tool use and follows with a selection of research on the usage of specific stone types including chert
, obsidian, and jade.
The Lost River Chert
Bed is found above the Goodes Cave entrance in a sequence of sublithographic and micritic limestone beds bearing brachiopods and fenestrate bryzoas.
The nature of chert
exposures in the Passismanua area of West New Britain, Papua New Guinea is reviewed in light of reports of worked seams of chert
in five caves.