摘要:

AbstractThe site of Moravany‐Žakovska in western Slovakia is situated in a loessic terrain and is dated to the end of the Late Glacial Maximum. This article shows the importance of analyzing the 0.01‐0.1 mm fraction to interpret the sedimentological environment and a number of measured anthropogenic indices, such as burnt quartz grains, charcoal, radiolarite chips, microflakes, and microfragments of bone. Analysis of the profile of the site through time reveals the relationship between occupational levels and phases of slope wash that occurred during wetter climatic episodes; these are separated by phases of aeolian sedimentation. At the same time, analysis of anthropogenic indices in this size fraction permitted the identification of occupational levels, including those not recorded by macrofinds. Analysis of anthropogenic indices in horizontal exposures enabled the identification of latent settlement structures such as hearths, areas of radiolarite processing, zones where mineral dyes were prepared, and other structures not recorded by macrof

ISSN:0883-6353    

DOI:10.1002/gea.3340100402

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractGiant ground figures are widespread in the lower Colorado River area of southwestern North America, yet their chronology has remained unconstrained by numerical ages. Thirteen AMS14C measurements reported here indicate that geoglyphs were made from before ˜A. D. 1200 to before ˜900 B. C. We account for potential contamination from prior organics in weathering rinds. All other potential errors point to14C dates being minimum‐limiting ages for the manufacturing of geoglyphs. Although these ages indicate considerable chronological complexity among geoglyphs, our data are consistent with the linguistic hypothesis that the Yuman people in the desert of southeastern California migrated from Baja California—rather than from the north. These results must, however, be placed under the cloud of uncertainty that hangs over the entire field of AMS dating of rock art: the untested assumption surrounding contemporeneity of organics in a surface context. © 1995 John Wiley&Son

ISSN:0883-6353    

DOI:10.1002/gea.3340100403

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractMore than 7800 m of digital ground‐penetrating radar data were acquired at the buried 6th century archaeological site of Ceren in El Salvador. The data were used to explore for buried structures and map the paleotopography through more than 5 m of volcanic overburden. The archaeological site consists of an agricultural village that was rapidly buried by pyroclastic debris erupted from a nearby volcano, preserving structures, plants, agricultural fields, and much of the surrounding landscape. Ground‐penetrating radar profiles were computer‐processed to remove system and background noise and time‐depth corrected to identify the reflection which represents the ancient ground surface. This buried surface, and the structures built on it, were computer‐modeled in two dimensions to aid in anomaly identification and interpretation. Twenty‐six buried structures were identified on GPR profiles and an accurate representation of the landscape and environment, as it existed just prior to the eruption, was reconstructed. Ground‐penetrating radar is an excellent geophysical tool with which to reconstruct buried landscapes and map cultural features due to its ability to accurately resolve underground features in thr

ISSN:0883-6353    

DOI:10.1002/gea.3340100404

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

ISSN:0883-6353    

DOI:10.1002/gea.3340100405

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

ISSN:0883-6353    

DOI:10.1002/gea.3340100406

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

ISSN:0883-6353    

DOI:10.1002/gea.3340100407

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

ISSN:0883-6353    

DOI:10.1002/gea.3340100408

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

ISSN:0883-6353    

DOI:10.1002/gea.3340100409

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

ISSN:0883-6353    

DOI:10.1002/gea.3340100411

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

ISSN:0883-6353    

DOI:10.1002/gea.3340100401

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY