Alluvial Geoarchaeology: Floodplain Archaeology and - download pdf or read online

Environmental Studies

By A. G. Brown

This finished technical guide is designed to provide archaeologists the mandatory history wisdom in environmental technological know-how required to excavate and learn archaeological websites through rivers and on floodplains. Bringing jointly info at the evolution and exploitation of floodplain and river landscapes, this article attracts on examples from Britain, Europe, North the USA and Australasia. a massive subject matter is the interplay among climatic and cultural forces and the transformation of riverine environments.

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Additional info for Alluvial Geoarchaeology: Floodplain Archaeology and Environmental Change (Cambridge Manuals in Archaeology)

Example text

The completion of a full series is prevented by inconsistency between the records of different periods, with different datums being used, and even different measuring scales (Bell, 1970). The longest early fragment lasts from early in the First Dynasty (about 3050 BC) to the Fifth Dynasty (around 2500 BC). It was carved onto what is now known as the Palermo stone. Even this data set is not without problems, as Helck (1966) thinks that the largest flood value in the array may be fictitious and was invented for religious purposes.

Feature Description Formation Ripples Characteristic wave-like cross-sectional forms, either straight or crescentic in planform up to 2000 mm in length and 250 mm in height. Composed of sand. Characteristic wave-like cross-section and planform similar to ripples but larger. Normally sand but can be composed of sand and gravel if formed by catastrophic flows. D-shaped planform growing out from the banks into the channel, composed of sand and/or gravel but frequently grading from silt and sand at the edges to gravel by the bank.

1 Block diagram of landforms associated with a meandering river and its floodplain. Adapted from Allen (1965), and other sources. Floodplain evolution 19 For example ripples and dunes can be formed on the floodplain by overbank flows although they will generally be subsequently destroyed. The shape of benches produced by sedimentation and bank failure may be identical and overbank sediments and in-channel pool sediments may have exactly the same grain size distribution. However, a combination of stratigraphy and grain size analysis can generally identify these features from excavations or boreholes.

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