Natural Formation Processes And The Archaeological Record

Spine title: Natural formation processes.

Synthesizes the most important principles of cultural and environmental formation processes for both students and practicing archaeologists.

The last 20 years have witnessed a proliferation of new approaches in archaeolog ical data recovery, analysis, and theory building that incorporate both new forms of information and new methods for investigating them. The growing importance of survey has meant an expansion of the spatial realm of traditional archaeological data recovery and analysis from its traditional focus on specific locations on the landscape-archaeological sites-to the incorporation of data both on-site and off-site from across extensive regions. Evolving survey methods have led to experiments with nonsite and distributional data recovery as well as the critical evaluation of the definition and role of archaeological sites in data recovery and analysis. In both survey and excavation, the geomorphological analysis of land scapes has become increasingly important in the analysis of archaeological ma terials. Ethnoarchaeology-the use of ethnography to sharpen archaeological understanding of cultural and natural formation processes-has concentrated study on the formation processes underlying the content and structure of archae ological deposits. These actualistic studies consider patterns of deposition at the site level and the material results of human organization at the regional scale. Ethnoarchaeological approaches have also affected research in theoretical ways by expanding investigation into the nature and organization of systems of land use per se, thus providing direction for further study of the material results of those systems.

Many factors influence the formation of shipwreck sites: the materials from which the ship was built, the underwater environment, and subsequent events such as human activity, storms, and chemical reactions. In this first volume to comprehensively catalogue the physical and cultural processes affecting submerged ships, Matthew Keith brings together experts in diverse fields such as geology, soil and wood chemistry, micro- and marine biology, and sediment dynamics. The case studies identify and examine the natural and anthropogenic processes--corrosion and degradation on one hand, fishing and trawling on the other--that contribute to the present condition of shipwreck sites. The contributors also discuss how these varied and often overlapping events influence the archaeological record. Offering an in-depth analysis of emerging technologies and methods—acoustic positioning, computer modeling, and site reconstruction--this is an essential study for the research and preservation of submerged heritage sites.

This volume brings together contributions from an experienced group of archaeologists and geologists whose common objective is to present thorough and current reviews of the diverse ways in which methods from the earth sciences can contribute to archaeological research. Many areas of research are addressed here, including artifact analysis and sourcing, landscape reconstruction and site formation analysis, soil micromorphology and geophysical exploration of buried sites.

Geoarchaeological studies can significantly enhance interpretations of human prehistory by allowing archaeologists to decipher from sediments and soils the effects of earth processes on the evidence of human activity. While a number of previous books have provided broad geographic and temporal treatments of geoarchaeology, this new volume presents a single author's view intended for North American archaeologists. Waters deals with those aspects of geoarchaeology—stratigraphy, site formation processes, and landscape reconstruction—most fundamental to archaeology, and he focuses on the late Quaternary of North America, permitting in-depth discussions of the concepts directly applicable to that research. Assuming no prior geologic knowledge on the part of the reader, Waters provides a background in fundamental geological processes and the basic tools of geoarchaeology. He then proceeds to relate specific physical processes, microenvironments, deposits, and landforms associated with riverine, desert, lake, glacial, cave, coastal, and other environments to archaeological site formation, location, and context. This practical volume illustrates the contributions of geoarchaeological investigations and demonstrates the need to make such studies an integral part of archaeological research. The text is enhanced by more than a hundred line drawings and photographs. CONTENTS 1. Research Objectives of Geoarchaeology 2. Geoarchaeological Foundations: The Archaeological Site Matrix: Sediments and Soils / Stratigraphy / The Geoarchaeological Interpretation of Sediments, Soils, and Stratigraphy 3. Alluvial Environments: Streamflow / Sediment Erosion, Transport, and Deposition / Alluvial Environments: Rivers, Arroyos, Terraces, and Fans / Alluvial Landscapes Evolution and the Archaeological Record / Alluvial Landscape Reconstruction 4. Eolian Environments: Sediment Erosion, Transport, and Deposition / Sand Dunes / Loess and Dust / Stone Pavements / Eolian Erosion / Volcanic Ash (Tephra) 5. Springs, Lakes, Rockshelters, and Other Terrestrial Environments: Springs / Lakes / Slopes / Glaciers / Rockshelters and Caves 6. Coastal Environments: Coastal Processes / Late Quaternary Sea Level Changes / Coastal Environments / Coastal Landscape Evolution and the Archaeological Record / Coastal Landscape Reconstruction 7. The Postburial Disturbance af Archaeological Site Contexts: Cryoturbation / Argilliturbation / Graviturbation / Deformation / Other Physical Disturbances / Floralturbation / Faunalturbation 8. Geoarchaeological Research Appendix A: Geoarchaeological Studies Illustrating the Effects of Fluvial Landscape Evolution on the Archaeological Record Appendix B: Geoarchaeological Studies Illustrating Site-Specific Synchronic and Diachronic Alluvial Landscape Reconstructions Appendix C: Geoarchaeological Studies Illustrating Regional Synchronic and Diachronic Alluvial Landscape Reconstructions

The Encyclopedia of Archaeology encompasses all aspects of archaeology, including the nature and diversity of archaeology as a scientific discipline, the practice of archaeology, archaeology in the everyday world, and the future of the discipline. Featured in the Encyclopedia of Archaeology are articles by leading authors that summarize archaeological knowledge at the beginning the 21st century, highlighting important sites and issues, and tracing the development of prehistoric cultures around the globe.

"The polygenetic origins of archaeological sediments create formidable interpretive challenges. Cultural and natural mechanisms operate in tandem to form and transform the archaeological record. While natural formation processes can be complicated in their own right, anthropogenic agents substantially increase the level of ambiguity in interpreting these sediments. In this thesis I cultivate methods first developed by practitioners of the earth sciences to provide insight into formation concepts that otherwise prove elusive. Fieldwork was conducted in coastal zones of southwestern Alaska over a period of four years. The region is characterized by a dynamic natural and cultural history, and the location provides an ideal setting for a study of this nature. Archaeologists regularly cite frost-related mechanisms (cryoturbation) as potential disturbance agents. Actual field data demonstrating the phenomenon, however, are few. In 1999, I established a long-term experiment designed to measure frost-induced displacement of the archaeological record. Objects buried in experimental plots demonstrated little movement after the first year. Objects positioned in one surface plot, configured to minimize the effects of all mechanisms except cryoturbation, moved an average of 4.7 cm during the same period. Objects in a second surface plot, which lacked restraints on wind and other variables, shifted an average of 18 cm, rendering their original arrangement unintelligible. Extrapolated over periods of decades or centuries, the data show that spatial patterning in the archaeological record is subject to substantial postdepositional reworking by frost., wind, and biological agents. I use thin-section micromorphology to assess whether a 6000 year-old living surfice at the Mink Island site on Katmai National Park was abandoned due to a volcanic eruption. I also show that thin, dark lenses visible in lithostratigraphic sequences at the site represent the decomposing remains of vegetal fiber rather than charcoal. I further demonstrate that the microfabric of living surfaces at this coastal Alaska site does not resemble the composition of living surfaces identified elsewhere. The differentiation of floor deposits in this sociocultural and environmental context is more complex than in regions where plaster floors were common. Thin-section micromorphology illuminates site formation processes at a resolution unachievable using standard excavation techniques"--Leaves xix-xx.