9-10-10.Out

9-10-10.Out - wet/dry E. Best Contexts for Preservation i....

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1 Anthro 2 Reading: Fagan 1993 9/10/10 II. WHY STUDY ARCHAEOLOGY? D. California– Public Outreach – Not Well Developed Tradeoff: Looting vs. Public Accessibility III.CHALLENGES STUDYING ARCH. MATERIAL 1. Differential Preservation of Material Remains Arch. Record is Patchy; Preservation Due to: A. Type of Material (Organic/Inorganic) hardness, density of material, chemical composition B. Context of Deposition (Surf., A Hor.,deeply buried) C. Post-Depositional Context D. Local Environmental Conditions:Air Temperature Soil Temperature, Moisture, Chemistry, pH – acid, neutral or basic Worst Conditions– Alternating hot/cold,
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Unformatted text preview: wet/dry E. Best Contexts for Preservation i. Stable Anaerobic Conditions (Oxygen Reduced) Water-logged Anaerobic Context: Ozette Site, Makah Indians, R. Daugherty, 500 BP Peat Bogs (Irish Bog, Windover) Underwater Sites Anaerobic (cold water,buried – examples: Mary Rose, La Belle, Bertrand, Roman wreck) ii. Freezing Conditions (Ice Man from Italian Alps) iii. Arid Conditions – rockshelters, caves, Mesa Verde iv. Unexpected Contexts: Garbage Project, Rathje Landfill Excavations; volume of plastics? Findings: Organic Stuff -paper, lumber, food waste, yard refuse;...
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This note was uploaded on 05/01/2011 for the course CHEM 1A taught by Professor Nitsche during the Spring '08 term at Berkeley.

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9-10-10.Out - wet/dry E. Best Contexts for Preservation i....

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