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F.E. Clark 《Alcheringa: An Australasian Journal of Paleontology》2013,37(4):377-382
Two new species of benthic foraminifera have been identified from Holocene sediments of the Papuan Plateau. Spirorutilus collinsi sp. nov. (suborder Textulariina) has a rapidly tapering, agglutinated test with depressed sutures, flattened upper chamber surfaces, and a low, broad-arched aperture. The second species, Cibicorbis aspera sp. nov. (suborder Rotaliina), differs from others of the genus in having rugae on both sides of the test, as well as rugose to serrate dorsal sutures. 相似文献
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C. A. Raymond J. J. Bevitt Y. Tristant R. K. Power A. W. Lanati C. J. Davey J. S. Magnussen S. M. Clark 《Archaeometry》2019,61(5):1160-1174
This case study was the first of its kind, where neutron computed tomography (CT) was applied to a wrapped mummified animal. Conventional X‐ray CT was also used to allow for meaningful comparison, and complementary data for a comprehensive investigation. Previous applications of both techniques are limited to metallic objects, such as bronze Buddhas. The mummy used in this study (IA.2402) is dated between the Third Intermediate Period (1069–664 bce ) to Late Period (664–332 bce ) according to the wrapping style, and was originally believed to contain a complete skeleton of a feline. However, precise date and provenance were unknown. Our results prove the presence of only partial juvenile feline remains, and provide a date range for artefact creation (900–804 bce ± 30) and alteration (367–204 bce ± 30). Therefore, this study implements an established imaging technique (neutron CT) in a novel way, while preserving and conserving the intrinsic value of the artefact through non‐destructive investigation. 相似文献
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Scanning electron microscopy/energy dispersive X-ray analysis has earlier shown that the white background layer (slip) on painted pottery sherds (Yangshao culture, Henan, China, 4200 BC) is composed of kaolinitic clay containing titanium in the assumed form of TiO2 at just 1 wt%. The same samples of white slip have now been studied by Raman microscopy, revealing bands characteristic of anatase, but none from the majority species, the matrix of kaolinitic clay. These results highlight the extraordinarily intense Raman scattering from even trace amounts of anatase and thus the need to recognise that, although the colours of archaeological artefacts are almost always determined by the nature of the matrix, the Raman spectrum may be determined by a highly scattering trace component such as anatase. The significance of anatase as a potential date-marker pigment on works of art and archaeological artefacts is discussed. 相似文献
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Alison Wylie 《Journal of Archaeological Method and Theory》2007,14(3):209-216
Gender research archaeology has made significant contributions, but its dissociation from the resources of feminist scholarship
and feminist activism is a significantly limiting factor in its development. The essays that make up this special issue illustrate
what is to be gained by making systematic use of these resources. Their distinctively feminist contributions are characterized
in terms of the recommendations for “doing science as a feminist” that have taken shape in the context of the long running
“feminist method debate” in the social sciences. 相似文献
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