2007 Eskmeals(Human-Environment Interactions)

Embed Size (px)

Citation preview

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    1/19

    2

    Human-environment Interactions

    during the Late Mesolithic of the

    Cumbria Coastal Plain:The evidence from Eskmeals

    Clive Bonsall

    The Eskmeals area on the narrow coastal plain of southwest Cumbria contains one of the

    richest concentrations of Late Mesolithic sites in north-west England.The Eskmeals sites

    were discovered during fieldwalking by Jim and Peter Cherry in the 1960s and 1970s(Cherry & Cherry, 1986), and three of the sites were investigated by the present author

    between 1974 and 1986 (Bonsall, 1981; Bonsall, et al., 1986, 1989). This paper

    summarizes the results of the Eskmeals archaeological excavations and the associated

    palaeoenvironmental work.

    THE PHYSICALSETTING OF THE ESKMEALS SITES

    The Eskmeals coastal foreland

    TO south of the present estuary of the River Esk is an area of land

    known as the Eskmeals foreland, which has been built up by coastal

    processes during the Holocene (Fig. 2.1). The eastern margin of the

    foreland is defined by a sharp break of slope that can be traced from the

    River Esk north of Newbiggin to south of Stubb Place. To the landward glacial

    sediments underlie an undulating topography of moderate relief that rises

    steadily inland to over 200 m in a few kilometres. The coastal foreland itself is

    formed by marine, estuarine and aeolian sediments resting on an eroded surface

    of glacial deposits. A complex sequence of shingle ridges has been produced by

    the dominant northwards-directed longshore movement of littoral sediment,and in the lee of the shingle ridges estuarine sediments have accumulated.

    The aeolian deposits that have developed on the surface of the shingle

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    2/19

    26 STUDIES IN NORTHERN PREHISTORY

    Fig. 2.1.Geomorphological

    map of the Eskmeals area.

    Key:

    1. peat-filled basins;

    2. present salt marsh;

    3. estuarine sediments;

    4. wind-blown sandsheet;

    5. constructional sand

    dunes;

    6. sharp break of slope;

    7. moderate break of

    slope;

    8. present streams;

    9. former stream

    channels;

    10. glacial sediments;

    11. alluvial fans;12. made ground;

    13. shingle ridges (after

    Bonsall et al. 1989).

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    3/19

    ridges comprise a seaward area of constructional dunes eastwards of which a large,

    nearly flat, sand sheet has developed. A series of channels transect the glacial

    deposits and apparently terminate at the edge of the coastal foreland. It is likely,

    however, that the lower portions of some of the channels continue below thecoastal sediments. These channels, particularly along their present lower portions,

    have sediment infills that accumulated contemporaneously with the formation of

    the coastal foreland and thus preserve valuable evidence of mid- to late-Holocene

    environments.

    Traces of Mesolithic occupation occur mainly on the glacial deposits along the

    edge of the foreland, within a few hundred metres of the break of slope which

    marks the limit of the early Holocene marine transgression. Mesolithic artefacts

    have also been recovered from the shingle ridges surrounding the Williamsons

    Moss basin which are known to have formed by c.6950 cal BP. Over 30 lithic

    scatters with a definite or suspected Mesolithic component have been recorded to

    date (Fig. 2.2), exposed where the modern vegetation was disturbed by ploughing

    or burrowing animals. Between 1974 and 1986 sites were investigated at Monk

    Moors and Williamsons Moss.

    Development of the coastal foreland

    The evidence relating to sea-level change and shoreline development in the

    Eskmeals coastal zone has been discussed by Bonsall et al. (1986, 1989). The

    evolution of the coastal foreland is illustrated in Fig. 2.3 and may be summarized

    as follows: Early Holocene sea-level rise culminated in the contemporaneous erosion of

    the landward glacial deposits and formation of the innermost shingle ridge

    between c.7450 and 7850 cal BP. Estuarine sedimentation began in the lee of

    this shingle ridge (Fig. 2.3a). Mean High Water of Spring Tides was then c.2 m

    above that of today. Subsequently, and with only a slight fall in sea level, the greater part of the

    shingle ridge complex that underlies the Eskmeals foreland was constructed.

    The shingle ridges around Williamsons Moss were deposited prior to 6950 cal

    BP and a new phase of shingle ridge development which had been preceded bya net fall in relative sea level of c.1 m was underway by 4950 cal BP. This

    intermediate sequence of shingle ridges continued to form until after 3900 cal

    BP (Fig. 2.3b), their formation being accompanied by progressive abandon-

    ment of the estuarine sediments landwards of the shingle ridges. The sea subsequently fell by 0.8-1.1 m and a further phase of shingle ridge

    development was in progress by 3000 cal BP (Fig. 2.3c). There have been at

    least two periods of sand dune activity on the foreland, the first between 3500

    and 1700 cal BP, and the second sometime after c.1400 cal BP. An earlier

    phase of sand dune activity may be suggested by a very sandy facies near the

    base of the estuarine sediments closest to the main shingle ridge complex.This

    would have occurred at sometime between 6950 cal BP (probably after 6300

    cal BP) and 3750 cal BP.

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 27

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    4/19

    28 STUDIES IN NORTHERN PREHISTORY

    Fig. 2.2.Distribution ofMesolithic sites in the

    Eskmeals area (after

    Bonsall et al. 1989).

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    5/19

    Settlement location and coastal change

    The Eskmeals sites are all situated on seaward-facing slopes overlooking stretches

    of former coastline that experienced predominantly estuarine conditions during

    the period of Mesolithic settlement, whereas settlement traces are lacking in areaswhere estuarine conditions were never established during the mid-Holocene for

    example south of Stubb Place. This pattern is repeated in coastal areas

    throughout Europe where late Mesolithic settlements typically are found in

    sheltered locations around estuaries, lagoons or marine inlets (cf. Larsson, 1991).

    Several authors have observed that river estuaries offer a greater abundance and

    variety of potential food resources than most other coastal environments (e.g.

    Jacobi, 1973; Clarke, 1976; Bonsall, 1981). Other resources may also have been a

    significant factor in settlement location at Eskmeals. The only locally available

    source of flint would have been the shingle deposits of the coastal foreland. Thesedeposits would also have been the most accessible sources of sand and stones

    known to have been used extensively for construction purposes (see below). The

    main site locations at Monk Moors and Williamsons Moss would have been

    ideally situated to exploit these resources.

    Another interesting feature of the site distribution is the tendency for lithic

    scatters to occur along the margins of former channels cutting across the glacial

    sediments. This relationship is particularly evident to the landward of

    Williamsons Moss (Fig. 2.4) but was also noted at Monk Moors (see below).The

    significance of these channels for Mesolithic settlement is uncertain. It seems

    doubtful that they acted as sources of fresh water. Although the channels wouldhave carried away rainwater running off the slopes adjacent to the coastal

    foreland, during the mid-Holocene they are unlikely to have been occupied by

    perennial streams. Certain of the channel mouths, however, would have provided

    a means of access to the foreshore particularly in the area between Monk Moors

    and Stubb Place where, at the maximum of the transgression, the sea was actively

    eroding a cliff some 3-15 m high. It is also possible that where estuarine

    conditions obtained the channels had economic significance. Salmon and sea

    trout are known to spawn in large numbers in the mouths of small channels and

    feeder streams leading into the present estuary. It has been suggested that lithicscatters often represent former rubbish dumps (Bonsall, 1992), and in some

    instances wet channel margins may have been chosen simply as convenient places

    for disposal of occupation refuse (cf. Bonsall et al., 1993).

    Since environmental factors such as the nearby presence of estuarine

    conditions appear to have had a major influence on Mesolithic site location, it

    may be presumed that the chronology of settlement at the different sites will

    relate to coastal evolution and the progressive establishment of suitable

    conditions in the Eskmeals area. As estuarine conditions were first established

    (between 7450 and 7850 cal BP) in the area between Monk Moors and

    Newbiggin, settlement may have first occurred in that area at that time. In

    contrast, the Williamsons Moss site faced onto the open coast until after the

    construction of the shingle ridges that formed the Williamsons Moss basin at

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 29

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    6/19

    30 STUDIES IN NORTHERN PREHISTORY

    Fig.2.3.Evolutionofthe

    Eskmealscoastalforeland.

    Key:1.sh

    ingleridges;2.estuarineareas;

    3.glacialsediments;4.marked

    breakofslope;5.featurebound

    ary;6.streams.Oneachdiagra

    mt

    he

    archaeolo

    gicalsitesknowntohavebeenoccupiedattherelevantperiodareshown(afterBonsalletal.,1989,withrevision).

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    7/19

    c.6950 cal BP, implying that after this date that locality would have been more

    attractive for settlement. It is therefore interesting that the earliest dated

    occupation at Monk Moors was at c.7650 cal BP, while the earliest dated

    occupation at Williamsons Moss was at c.6350 cal BP (see below).This apparentrelationship between periods of site occupation and environmental conditions

    suggests that as sea level fell, occupation may have continued longest in the Monk

    Moors-Newbiggin area where estuarine conditions lasted longest (cf. Fig. 2.3),

    and that Williamsons Moss would have retained its attraction for human

    settlement as long as an open lake occupied the area of the present moss.

    THE MONKMOORS SITES

    Archaeological excavations at Monk Moors between 1974 and 1977 investigated

    two lithic scatters which lay on opposite sides of a small infilled channel near the

    point at which it is truncated by the sharp break of slope that defines the edge of

    the coastal foreland (Bonsall, 1981). These are unstratified, surface sites.

    Within the excavated areas the archaeological remains occurred mainly in the

    upper 30 cm of a soil which is developed in stony reddish till. The sites proved

    to have been severely disturbed by recent agriculture. The lithic artefacts

    were mixed through a topsoil (Ap-horizon) overdeepened by ploughing, and

    structural remains were preserved only as truncated features at the top of the

    underlying B-horizon. With the exception of small amounts of wood charcoal

    and rare carbonized fragments of hazelnut shells, no organic materials hadsurvived. A small exploratory trench excavated through c.1.5 m of silty clays

    infilling the channel between the two sites revealed no finds of archaeological

    significance.

    Large assemblages of flaked stone artefacts were recovered from the excavated

    areas, that from Site 1 (to the north of the infilled channel) comprising over

    30,000 artefacts. The Monk Moors sites (and Williamsons Moss) show a close

    resemblance in the forms of the artefacts present and the composition of the

    assemblages (Fig. 2.4). The retouched tools show a predominance of narrow

    blade microliths (characteristic of Mesolithic sites in northern Britain postdatingc.10,350 cal BP) and scrapers. Among the dbitage both bipolar and platform

    cores are well represented. Heavy-duty implements, such as core axes and

    bevelled stone implements, are conspicuously absent from the Eskmeals sites.

    Small pebbles of flint, and occasionally chert or tuff, appear to have been the only

    lithic materials utilized for toolmaking and, presumably, were collected from

    shingle ridges near to the sites.

    Other traces of prehistoric human activity at Monk Moors comprised

    numerous pieces of red ochre recovered from the topsoil on both sites, a series of

    hearths and stake holes identified on Site 1, and several shallow depressions

    (possibly hearths) and a pit on Site 2. Interpretation of these features isproblematic. They may be traces of actual habitation, but are perhaps better

    explained in terms of activities involving processing or storage of food or raw

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 31

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    8/19

    32 STUDIES IN NORTHERN PREHISTORY

    Fig. 2.4.Lithic artefacts from Monk Moors site 1: a. microliths; b. scrapers [1-2], burin [3],

    bipolar (scalar) core [4] (after Bonsall, 1981).

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    9/19

    materials (Bonsall, 1981). Moreover, radiocarbon dating indicates that they relate

    to more than one phase of occupation (Table 1). Charcoal from a hearth on Site

    1 was dated as 6750 155 BP (BM-1216), indicating that the hearth relates to

    use of the site during the Mesolithic. This feature formed part of a linear clusterof hearths and stake holes which may belong to a single phase of occupation.

    Charcoal samples from a second hearth on Site 1 (isolated from the main group)

    and a hearth and a pit on Site 2 gave dates respectively of 3650 120 BP (BM-

    1395), 4050 55 BP (BM-1385) and 2860 50 (BM-1386) BP, suggesting that

    these features relate to post-Mesolithic activity.

    It is apparent from the radiocarbon and other evidence that the two sites

    investigated were occupied on a number of occasions between c.7650 and 2900cal BP, indicating that the coastal foreland retained its attraction for settlement

    long after the Mesolithic period. The pattern of repeated occupation of the same

    site locations implied by these data also opens the possibility of more than one

    episode of Mesolithic occupation at Monk Moors.

    THE WILLIAMSONS MOSS SITE

    The archaeological site investigated lies at an elevation of c.7.5 m O.D. and is

    centred on a low spur extending north westward from a ridge of till towards theshingle ridge at the margin of Williamsons Moss. The land rises steadily to the

    east of the site to a height of 15 m O.D. On either side of the spur the landsurface

    falls gently to a point lower than the top of the shingle ridge and has been subject

    to ponding of water behind it resulting in the accumulation of fine alluvial

    sediments. These attain their greatest thickness in the southern part of the site

    where they infill a narrow channel cut into the till one of a series of channels

    that once drained the surrounding slopes (Fig. 2.5).

    A partial excavation of the Williamsons Moss site was undertaken between

    1981 and 1986 (Fig. 2.5). A palaeo-landsurface could be identified beneath the

    alluvial sediments. Traces of Mesolithic occupation were demonstrated to occuron this palaeo-landsurface over an area of at least 7500 m2. Thus, unlike at Monk

    Moors, over much of the site area the archaeological remains were in a sealed

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 33

    Table 1.Radiocarbon dates for the Monk Moors sites. Calibrated ages have been calculated

    using atmospheric data from Reimer et al. (2004) and OxCal v 3.10 (Bronk Ramsey, 2005),

    and are shown at 95.4% probability.

    Lab ID Context 14C age BP Calibrated age(95.4%) BC

    BM-1216 Site 1. Charcoal from hearth. 6750 155 60005350

    BM-1385 Site 2. Charcoal from hearth. 4050 550 28702460

    BM-1395 Site 1. Charcoal from hearth. 3650 120 25001650

    BM-1386 Site 2. Charcoal from pit. 2860 500 12101900

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    10/19

    context and showed few signs of postdepositional disturbance.

    It was established by means of test pits that the greatest concentration of

    artefacts occurred in an area roughly 50 x 30 m on the crest of the till spur. In

    subsequent excavation an assemblage of more than 34,000 worked pieces of flint,chert and tuff, including over 600 microliths and other retouched tools, was

    recovered from an area of just 125 m2 (Fig. 2.5: Area A). On the crest of the spur

    there was no apparent build-up of alluvial material, the soils having developed

    directly on till. Hence the archaeological remains there were unstratified. The

    lithic artefacts were mixed through the upper 30-40 cm of the soil profile. This

    mixing was probably caused principally by bioturbation (perhaps aided by human

    occupation disturbance) rather than ploughing. The few structural features

    identified, comprising hearths, small pits and several possible stake holes (Bonsall

    et al., 1989: fig. 40), were truncated by the modern A-horizon.

    In the lower-lying areas below the crest of the till spur lithic artefacts occurredmainly on the palaeo-landsurface beneath alluvial sediments, although artefact

    densities were very low (usually

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    11/19

    palaeo-landsurface, however, contains other evidence of human activity.

    Excavation exposed a number of concentrations of medium and large rounded

    stones forming a distinct layer on either side of the till spur. The stones contrast

    with those in the surrounding sediments and were probably derived from nearbyshingle deposits.This layer is therefore interpreted as the remains of stone floors

    (stone pavement) laid down to consolidate a poorly drained clayey soil easily

    puddled by trampling. The main expanse of stone pavement examined lay

    between the crest of the till spur and the infilled channel (Fig. 2.5: Area B). From

    their stratigraphic context, the stone floors are presumed to relate to Mesolithic

    occupation (Bonsall et al., 1986, 1989).

    Two trenches were dug to investigate the deposits within the infilled channel

    (Fig. 2.5: Areas E1 & E2). Consisting largely of silty clays (see below), these

    deposits resemble the alluvial sediments in other parts of the site. Two types of

    structure were found stratified within the channel sediments and appear to relate

    to a palaeo-landsurface c.90 cm below that of today. One is a raft-type foundation

    consisting of two sets of oak branches arranged in a grille or lattice pattern,

    overlain by a layer of black, well-humified peat composed of twigs, branches and

    bark interpreted as the remains of a layer, or series of layers of birch brushwood

    placed on top of the timber lattice. Examples of this type of structure were found

    in Area E1 (Fig. 2.6: Structure 1; Fig. 2.7) and Area E2. The second type of

    structure consists of areas of made ground retained by a revetment of large

    radial sections of oak trunks. An example of this type was partially exposed in

    Area E1 (Fig. 2.6) and was overlain by a peaty layer containing abundant birchbark fragments interpreted as the remains of a bark floor (Fig. 2.6: Features 53 &

    80). A similar feature, but lacking evidence of a birch bark floor, occurred in Area

    E2. It can be suggested that these structures were built to consolidate soft ground

    formed by the alluvial sediments infilling the channel. It seems likely that they

    were intended to form platforms raised above the level reached by water

    ponding behind the shingle ridge. Comparison with similar finds made at

    Mesolithic sites in southern Scandinavia can be used to suggest that the layers of

    birch bark associated with Structure 2 are remnants of the internal floors of one

    or more buildings, possibly houses, constructed on the platform and adjacentchannel margin.

    Structures 1 and 2 are dated by six radiometric 14C determinations (Table 2). A

    sample of oak from the foundation of Structure 1 gave an age of 6015 75 BP

    (UB-2544). Two samples of birch bark from the base and upper part of the

    overlying layer of decayed brushwood respectively gave dates of 5555 40 BP

    (UB-2545) and 5650 50 BP (UB-2546). Three samples of birch bark from the

    two principal areas of bark flooring associated with Structure 2 gave ages of

    5520 85 BP (UB-2712) and 5500 70 BP (GU-1664) [F80] and 5480 90

    BP (UB2713) [F53]. The dates on bark should approximate most closely the

    period of construction. These dates are statistically indistinguishable and indicatethat Structures 1 and 2 were built c.5550 BP. The difference in age ofc.450 years

    indicated by the date for one of the foundation timbers of Structure 1 and those

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 35

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    12/19

    for the decayed brushwood covering of this feature can be explained, in part, by

    the (re-)utilization of old timbers for the foundation of this structure (Bonsall etal., 1989).

    No diagnostic artefacts were found in direct association with either Structure 1

    or Structure 2. Elsewhere on the site there are large numbers of diagnostically

    Mesolithic artefacts and no clearly Early Neolithic artefacts, either of stone or

    pottery. Moreover, the date of c.6350 cal BP assigned to the structures is

    significantly older than the earliest securely dated occurrences of Neolithic

    artefacts in northern Britain. The structural remains in Area E1, therefore, are

    most likely to relate to occupation of the Williamsons Moss site by people who

    possessed a Late Mesolithic material culture. No dates are available for the timber

    structures in Area E2, but the general similarity in form, construction techniqueand stratigraphic context to those in Area E1 suggests that the Area E2 structures

    also relate to Mesolithic occupation of the site.

    36 STUDIES IN NORTHERN PREHISTORY

    Table 2.Radiocarbon dates for the Williamsons Moss site. Calibrated ages have been calculated using

    atmospheric data from Reimer et al. (2004) and OxCal v 3.10 (Bronk Ramsey, 2005),

    and are shown at 95.4% probability.

    Lab ID Context 14C age BP Calibrated age(95.4%) BC

    UB-2544 Area E1.Wood (oak). Part of timber lattice

    of Structure 1. 6015 750 52104710

    UB-2546 Area E1. Bark fragments (birch). Part of

    decayed brushwood covering of Structure 1. 5650 500 46004360

    UB-2545 Area E1. Bark fragments (birch). Part of

    decayed brushwood covering of Structure 1. 5555 400 44604330

    UB-2712 Area F. Bark fragments (birch). Part of bark

    floor on buried land surface. 5520 850 45504160

    GU-1664 Area F. Bark fragments (birch). Part of bark

    floor on buried land surface. 5500 700 45004170

    UB-2713 Area E1. Bark fragments (birch). Part of bark

    floor on timber and earth platform

    (Structure 2). 5480 900 45004050

    UB-2711 Area F. Charcoal from hearth in alluvial

    sediments overlying buried land surface. 4925 165 42503300

    BM-1396 Area B. Charcoal from hearth (F23) in

    alluvial sediments overlying buried landsurface. 3756 104 25001900

    UB-2568 Test Pit AP36. Charcoal from hearth in

    alluvial sediments overlying buried land

    surface. 3665 400 22001920

    UB-2715 Area E2. Charcoal from hearth overlying

    Structure 5. 3480 800 20301610

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    13/19

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 37

    Fig.2.6.W

    illiamsonsMoss,infilledchannel:structuralfeaturesinAreaE1afterBon

    salletal.,

    1989).

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    14/19

    As at Monk Moors, there is some evidence for post-Mesolithic use of the

    Williamsons Moss site. Artefacts, hearths, and lenses of introduced beach sand

    and pebbles occurred within the alluvial sediments above the palaeo-landsurface,

    although there was no indication of major or prolonged settlement activity

    following the period of Mesolithic occupation. Three hearths at different levels

    within the alluvial sediments have given radiometric 14C ages of 3665 40 BP

    (UB-2568), 3755 105 BP (BM-1396) and 4925 165 BP (UB-2711)

    consistent with their relative stratigraphic positions (Table 2).

    VEGETATION HISTORY AND HUMAN IMPACTS

    Palynological investigations were undertaken in conjunction with the

    archaeological excavations at Williamsons Moss, in order to obtain information

    on vegetation changes and possible human impacts around the time of the

    Mesolithic occupation. Pollen profiles were obtained from the infilled lake basin

    at Williamsons Moss and from the infilled channel deposits of the archaeological

    site (Bonsall et al., 1986, 1989;Tipping, 1994).The Williamsons Moss pollen site is located c.270 m to the south west of the

    archaeological site, in the deepest part of the infilled lake basin (Fig. 2.5, P1).

    38 STUDIES IN NORTHERN PREHISTORY

    Fig. 2.7.Williamsons Moss, infilled channel: raft-type foundation (Structure 1) in Area E1

    (after Bonsall et al., 1989).

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    15/19

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    16/19

    the later phase (including a hearth, some sherds of Middle Neolithic pottery,

    and a leaf-shaped arrowhead) appears slight compared to the extensive evidence

    of Late Mesolithic occupation.

    CHARACTER OF THE MESOLITHIC SETTLEMENT

    In some parts of Europe such as southern Scandinavia many large coastal

    settlements of the later Mesolithic are suspected as having served as residential

    base camps occupied on a permanent or semi-permanent basis founded on

    seasonal scheduling of coastal and inland resources (e.g. Rowley-Conwy, 1983).

    Few of these sites have produced substantial architectural remains, but some have

    faunal assemblages which suggest year-round occupation. Bonsall (1981)

    proposed a model of the subsistence economy of Late Mesolithic groups in the

    Eskmeals area which emphasized the role of fishing and coastal resources, and the

    potential for year-round settlement. Unfortunately, the Eskmeals sites lack direct

    evidence of subsistence activities in the form of animal and plant remains against

    which this hypothesis could be tested.

    The Williamsons Moss site, however, exhibits a number of features which

    could be expected to have characterized the residential base of a sedentary

    Mesolithic community. It is a large and complex site. The remains of Mesolithic

    occupation extend over a substantial area and there are zones within the site area

    which appear to have been associated with different activities, such as habitation

    (the infilled channel) and refuse disposal or implement manufacture/use (thelithic scatter). From pedological evidence, Bonsall et al., (1989) envisaged a large

    clearing for settlement which involved removal of trees and ground vegetation

    and removal or erosion of the surface soil, resulting in exposure of the subsurface

    mineral horizon over a substantial area around the till spur.

    The architectural remains are among the most extensive and elaborate

    recorded from a European Mesolithic site. There is also evidence that the

    brushwood covering of Structure 1 and the bark floor overlying Structure 2 were

    each renewed on several occasions (Bonsall et al. 1989; and below), implying use

    of these structures over a number of years, even decades. The structural remainspreserved within the infilled channel, however, may represent only a small

    proportion of the timber architecture originally present on the site. Systematic

    probing has also demonstrated the presence large timbers in a small channel to

    the north of the till spur (Fig. 2.4). Since the preservation of organic materials on

    the site appears to be related to waterlogging and deep burial beneath alluvial

    silts, any timber and bark structures erected in the better-drained areas beyond

    the channel margins are unlikely to have survived.

    It is likely that a sedentary Mesolithic community would acquire most of its

    food and raw materials from within a short distance of the home base. Since raw

    materials used in the manufacture of implements are likely to have been obtainedincidentally to the execution of other subsistence tasks (cf. Binford, 1979), the

    intensive use of local materials reflected in the lithic assemblage from

    40 STUDIES IN NORTHERN PREHISTORY

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    17/19

    Williamsons Moss implies that the Mesolithic population focused its activities on

    the coastal zone.

    There are, however, limits to what may be inferred from the available data.The

    evidence from the Williamsons Moss site suggests sedentism, but does notdemonstrate it. From radiocarbon evidence alone it cannot be demonstrated that

    the structures within the infilled channel relate to a continuous period of

    occupation. The lithic scatter and areas of stone pavement cannot be dated

    directly. Consequently, it cannot be proved that these features are

    contemporaneous, nor that either relates to the phase(s) of occupation

    represented by the timber platforms. Similarly, it is doubtful if from pedological

    evidence the effects of a single large clearing for settlement could be distinguished

    from those of a series of small contiguous or overlapping clearings associated with

    separate occupation events.

    Tipping (1994) has suggested from palynological evidence that there is

    unlikely to have been a large area of open ground around the channel at the time

    of platform construction. This interpretation assumes that the pollen entering the

    channel sediments was derived largely from vegetation growing on the margins of

    the channel. If, however, Mesolithic settlement resulted in complete suppression

    of the vegetation over a substantial area around the channel, as suggested by

    Bonsall et al. (1989), then the pollen recruitment zone would have been

    considerably enlarged and the pollen entering the channel sediments at that time

    would reflect vegetation growing some distance (possibly hundreds of metres)

    away. In effect, such a clearing would be invisible in the pollen record. It might,however, be reflected by an increase in the occurrence of microscopic charcoal in

    the channel sediments. It is doubtful, therefore, whether pollen analysis by itself

    can provide an accurate impression of the nature and scale of vegetation

    clearances associated with Mesolithic settlement.

    RETROSPECT

    The Eskmeals Project has been an important addition to the archaeological record

    of north-west England. In particular, it has made a significant contribution to ourunderstanding of humanenvironment interactions in the Late Mesolithic.Yet two

    decades after the last trench was backfilled, the Monk Moors and Williamsons

    Moss sites remain the only Mesolithic sites on the Cumbrian coastal plain to have

    been systematically investigated within an interdisciplinary research framework.

    Unsurprisingly, therefore, there are many questions concerning the Mesolithic

    settlement of the Cumbrian coast that remain unresolved, not least those relating

    to subsistence, sedentism and the transition to farming. These are an obvious

    target for future research.

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 41

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    18/19

    ACKNOWLEDGEMENTS

    This paper is dedicated to Clare Fell who took a keen interest in the Eskmeals

    Project. She was a regular visitor to the excavations throughout the 12-year

    duration of the project. I will always be grateful to Clare for her kindness and

    support, and for her remarkable archaeological insights.

    REFERENCES

    Binford, L. R., 1979, Organization and formation processes: looking at curated

    technologies.Journal of Anthropological Research 35(3): 255-273.

    Bonsall, C., 1981, The coastal factor in the Mesolithic settlement of north-west

    England. In B. Gramsch (ed.)Mesolithikum in Europa. Berlin: Deutscher Verlag, 451-

    472.Bonsall, C., Sutherland, D. G.,Tipping, R. M. & Cherry, J., 1986, The Eskmeals Project

    1981-5: an interim report.Northern Archaeology 7(1): 3-30.

    Bonsall, C., Sutherland, D. G.,Tipping, R. M. & Cherry, J. 1989, The Eskmeals Project:

    Late Mesolithic settlement and environment in north-west England. In C. Bonsall

    (ed.) The Mesolithic in Europe. Edinburgh: John Donald, 175-205.

    Bonsall, C. 1992, Archaeology of the south-west Scottish Highlands. In M. J. C.Walker,

    J. M. Gray & J. J. Lowe (eds) The South-West Scottish Highlands: Field Guide.

    Cambridge: Quaternary Research Association, 28-34.

    Bonsall, C., Robinson, M., Payton, R. M. & Macklin, M. G. 1993, Ln Mr, Oban.

    Discovery and Excavation in Scotland1993: 76.

    Bronk Ramsey, C., 2005. OxCal Program v3.10. Radiocarbon Accelerator Unit, University

    of Oxford.

    Cherry, J. & Cherry, P. J., 1986, Prehistoric habitation sites in west Cumbria: Part IV, the

    Eskmeals area. CW2 lxxxvi: 1-17.

    Clarke, D. L., 1976, Mesolithic Europe: the economic basis. In G. Sieveking, I.

    Longworth & K. Wilson (eds) Problems in Economic and Social Archaeology. London:

    Duckworth, 449-481.

    Jacobi, R. M., 1973, Aspects of the Mesolithic Age in Great Britain. In S. K.

    Kozlowski (ed.) The Mesolithic in Europe.Warsaw:Warsaw University Press, 237-275.

    Larsson, L., 1991, Coastal adaptation in the early and middle Holocene of southern

    Scandinavia.Journal of the Korean Ancient Historical Society Hanguk Sanggosa Hakbo 8:

    93-118.

    Parker, A. G., Goudie, A. S., Anderson, D. E., Robinson, M. A. & Bonsall, C., 2002, A

    review of the mid-Holocene elm decline in the British Isles. Progress in Physical

    Geography 26(1): 1-45.

    Reimer, P. J., Baillie, M. G. L., Bard, E., Bayliss, A., Beck, J. W., Bertrand, C. J. H.,

    Blackwell, P. G., Buck, C. E., Burr, G., Cutler, K. B., Damon, P. E., Edwards, R. L.,

    Fairbanks, R. G., Friedrich, M., Guilderson, T. P., Hogg, A. G., Hughen, K. A.,

    Kromer, B., McCormac, F. G., Manning, S., Bronk Ramsey, C., Reimer, R. W.,

    Remmele, S., Southon, J. R., Stuiver, M., Talamo, S., Taylor, F. W., van der Plicht, J.

    and Weyhenmeyer, C. E., 2004. INTCAL04 terrestrial radiocarbon age calibration,

    0-26 kyr BP. Radiocarbon 46(3): 1029-1058.

    Rowley-Conwy, P., 1983, Sedentary hunters: the Erteblle example. In G. Bailey (ed.)

    42 STUDIES IN NORTHERN PREHISTORY

  • 8/3/2019 2007 Eskmeals(Human-Environment Interactions)

    19/19

    Hunter-gatherer Economy in Prehistory. Cambridge: Cambridge University Press, 111-126.

    Tipping, R. M., 1994, Williamsons Moss: palynological evidence for the Mesolithic-

    Neolithic transition. In J. Boardman & J. Walden (eds), The Quaternary of Cumbria:

    Field Guide. Oxford: Quaternary Research Association, 104-127.

    HUMAN-ENVIRONMENT INTERACTIONS DURING THE LATE MESOLITHIC 43