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xii | |
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xv | |
Summary |
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xvi | |
Acknowledgements |
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xvii | |
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1.1 The Lea Valley Mapping Project |
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1 | (1) |
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1.2 Justification of the project: meeting the criteria of the ALSI |
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2 | (2) |
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4 | (1) |
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4 | (2) |
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4 | (1) |
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4 | (1) |
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The Archaeology Data Service database |
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5 | (1) |
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The London Archaeological Archive and Research Centre archive |
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6 | (1) |
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1.5 Textual and graphical conventions |
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6 | (2) |
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2 The historical context of the lower Lea |
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8 | (1) |
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2.2 The River Lea: its historical development and usage |
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9 | (7) |
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Boundaries and conflict along the River Lea |
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10 | (1) |
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10 | (2) |
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Fisheries of the River Lea |
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12 | (1) |
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Logboat finds along the River Lea |
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13 | (1) |
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Bridges and ferries of the lower Lea |
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13 | (1) |
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Navigation of the River Lea |
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14 | (2) |
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The reservoirs of the Rver Lea |
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16 | (1) |
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2.3 The character of the modern floodplain |
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16 | (4) |
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2.4 Gravel extraction and artificial ground in the Lea valley |
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20 | (3) |
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3 Methodology and approach to deposoite modelling |
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23 | (1) |
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3.2 Data collection and database creation |
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24 | (5) |
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24 | (1) |
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The stratigraphic database |
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25 | (2) |
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Archaeology data collection and organisation |
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27 | (2) |
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3.3 Deposit model construction |
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29 | (10) |
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Geoarchaeological deposit models |
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29 | (1) |
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The Lea Valley Mapping Project approach to deposit modelling |
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29 | (10) |
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3.4 Characterising the buried landscape |
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39 | (3) |
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39 | (1) |
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40 | (2) |
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3.5 Timescales used in this report |
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42 | (2) |
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42 | (1) |
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Archaeological timescales |
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42 | (2) |
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4 Map I: the Thames confluence |
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44 | (4) |
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4.2 Terrain 1: central floodplain |
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48 | (5) |
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48 | (3) |
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51 | (2) |
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53 | (5) |
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53 | (1) |
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54 | (2) |
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56 | (1) |
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57 | (1) |
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4.4 Terrain 3: low terrace |
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58 | (2) |
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58 | (1) |
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59 | (1) |
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59 | (1) |
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4.5 Terrain 4: high terrace |
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60 | (1) |
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60 | (1) |
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60 | (1) |
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4.6 Terrain 6: tributary valleys |
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61 | (1) |
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61 | (1) |
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5 Map 2: the Bow back rivers |
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62 | (2) |
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5.2 Terrains 1 and 2: valley floor |
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64 | (4) |
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64 | (4) |
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5.3 Terrain 3: low terrace |
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68 | (3) |
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68 | (2) |
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70 | (1) |
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5.4 Terrain 4: high terrace |
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71 | (1) |
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71 | (1) |
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71 | (1) |
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5.5 Terrain 6: tributaries |
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72 | (2) |
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72 | (1) |
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Landscape zones 2.6, 2.8 and 2.9 |
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73 | (1) |
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6 Map 3: Tottenham to Leyton |
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74 | (4) |
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6.2 Terrain 1: valley floor (central floodplain) |
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78 | (9) |
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Landscape zones 3.5, 3.9 and 3.10 |
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78 | (9) |
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6.3 Terrain 2: floodplain margins |
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87 | (1) |
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87 | (1) |
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87 | (1) |
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6.4 Terrain 3: low terrace |
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88 | (1) |
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88 | (1) |
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89 | (1) |
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6.5 Terrain 4: high terrace |
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89 | (2) |
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West: landscape zone 3.11 |
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89 | (1) |
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East: landscape zone 3.13 |
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90 | (1) |
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6.6 Terrain 5: London Clay slopes and sloping valley side |
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91 | (2) |
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West: landscape zones 3.1, 3.2 and 3.6 |
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91 | (1) |
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East: landscape zones 3.7 and 3.8 |
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92 | (1) |
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6.7 Terrain 6: tributary valleys |
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93 | (2) |
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Landscape zones 3.1, 3.6 and 3.7 |
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93 | (1) |
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93 | (2) |
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7 Map 4. Edmonton and Chingford |
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7.1 Overview and modern characteristics |
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95 | (4) |
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7.2 Terrains 1 and 2: valley floor |
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99 | (5) |
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Landscape zones 4.4 and 4.5 |
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99 | (5) |
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7.3 Terrain 3: low terrace |
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104 | (1) |
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West: landscape zones 4.3 and 4.12 |
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104 | (1) |
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East: landscape zones 4.6, 4.8 and 4.9 |
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105 | (1) |
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7.4 Terrain 4: high river terraces |
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105 | (1) |
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Landscape zones 4.1, 4.2 and 4.13 |
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105 | (1) |
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7.5 Terrain 5: exposed London Clay slopes |
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106 | (1) |
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Landscape zones 4.10 and 4.11 |
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106 | (1) |
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7.6 Terrain 6: tributary valleys |
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106 | (2) |
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Landscape zones 4.7, 4.15 and 4.14 |
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106 | (2) |
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108 | (1) |
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8.2 Terrain 1: valley floor (central floodplain) |
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109 | (12) |
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109 | (11) |
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120 | (1) |
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120 | (1) |
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8.3 Terrain 3: low terrace |
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121 | (1) |
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121 | (1) |
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8.4 Terrain 4: high terrace |
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122 | (2) |
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122 | (1) |
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123 | (1) |
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8.5 Terrain 5: London Clay slopes |
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124 | (1) |
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124 | (1) |
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124 | (1) |
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8.6 Terrain 6: tributary valleys |
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124 | (3) |
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124 | (1) |
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125 | (1) |
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125 | (1) |
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126 | (1) |
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126 | (1) |
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9 Previous geological mapping by the British Geological Servey |
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127 | (1) |
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9.2 Medium-scale primary survey |
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128 | (1) |
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9.3 First large-scale survey |
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128 | (1) |
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9.4 Early revision surveys |
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129 | (1) |
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9.5 Modern revision surveys |
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129 | (2) |
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129 | (1) |
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129 | (1) |
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130 | (1) |
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10 Modelling the river terraces of the lower Lea |
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10.l The Pleistocene topography |
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131 | (1) |
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131 | (1) |
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10.3 The river terraces of the Lea valley |
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132 | (2) |
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10.4 Modelling the Pleistocene deposits |
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134 | (6) |
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134 | (1) |
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134 | (1) |
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135 | (1) |
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Three-dimensional mapping |
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136 | (1) |
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137 | (3) |
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11 Late Quaternary environments in the lower Lea |
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140 | (2) |
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11.2 Reliability of the environmental evidence |
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142 | (3) |
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11.3 The Late Pleistocene Arctic Beds |
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145 | (4) |
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11.4 Lateglacial and Early Holocene environments |
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149 | (4) |
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149 | (1) |
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Evidence from the Nazeing channel |
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150 | (1) |
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Distribution of the Lateglacial and Early Holocene evidence from the study area |
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150 | (3) |
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11.5 The changing environment represented by the Lateglacial and Early Holocene deposit sequence |
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153 | (2) |
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Floodplain pools of the Loch Lomond Stadial and earliest Holocene |
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154 | (1) |
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Mere contraction, peat and organic deposits |
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154 | (1) |
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154 | (1) |
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11.6 Lateglacial and Holocene vegetation succession in the lower Lea |
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155 | (2) |
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155 | (2) |
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157 | (9) |
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Characteristics of the Lea valley alluvial sequence |
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157 | (1) |
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Distingishing brickearth from alluvium |
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157 | (3) |
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Alluvial and estuarine clay |
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160 | (1) |
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Encroaching estuarine environments |
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160 | (4) |
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Correlation of peat deposits between the alluvial sequence of the Lea and that of the east London Thames |
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164 | (1) |
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Channel migration and lateral accretion |
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164 | (6) |
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11.8 Human impact on the Late Quaternary environment of the lower Lea |
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166 | (4) |
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12 Predicting Mesolithic sites |
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170 | (1) |
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12.2 Mesolithic sites and finds within the lower Lea valley |
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170 | (3) |
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12.3 Mesolithic sites in the Colne valley |
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173 | (2) |
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12.4 Areas of potential Mesolithic archaeology within the Lea valley |
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175 | (3) |
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13 Settlement patterns in the Lea valley |
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178 | (1) |
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13.2 Hunter-gatherers: Mesolithic |
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179 | (1) |
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13.3 Beginnings of a sedentary lifestyle: Neolithic to Early Bronze Age |
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179 | (2) |
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179 | (1) |
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River terraces (T3 and T4) |
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179 | (1) |
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180 | (1) |
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13.4 Intensification of land use: Middle to Late Bronze Age |
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181 | (1) |
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Floodplain (T1) and marginal areas (T2) |
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182 | (1) |
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182 | (1) |
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182 | (1) |
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182 | (1) |
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13.5 A move to mixed farming: Iron Age |
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182 | (2) |
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Floodplain and tributary valleys (Tl and T6) |
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183 | (1) |
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183 | (1) |
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184 | (1) |
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184 | (1) |
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184 | (1) |
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184 | (1) |
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185 | (1) |
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Ermine Street (T4, T3 and T6) |
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185 | (1) |
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13.7 Saxon/early medieval (c 450-1066) |
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185 | (2) |
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186 | (1) |
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High river terraces and sloping valley sides (T4 and T5) |
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186 | (1) |
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186 | (1) |
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187 | (1) |
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Floodplain and river channels (T1) |
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188 | (1) |
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188 | (1) |
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188 | (1) |
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13.9 Discussion of distribution |
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188 | (2) |
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13.10 Inferences for archaeological potential and implications for future work |
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190 | (1) |
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191 | (1) |
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14.2 First stage of ground truthing: monitoring geotechnical boreholes |
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191 | (4) |
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192 | (2) |
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The mosaic of islands and wetlands |
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194 | (1) |
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194 | (1) |
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14.3 Second stage of ground truthing: evaluation trenches |
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195 | (6) |
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201 | (2) |
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15 The Lea valley in a regional context |
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203 | (2) |
Glossary of geoarchaeological terms |
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205 | (2) |
French and German summaries |
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207 | (3) |
Bibliography |
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210 | (12) |
Index |
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222 | |