Journal of the Royal Society of Western Australia, 99(2): 31-46, 2016 Archaeological assessment of coastal and marine development sites: case study from James Price Point, Western Australia I WARD r, P LARCOMBE2, A CARSON3 & A LANE4 1 School of Social Sciences, University of Western Australia, WA 6009 Australia 2 RPS MetOcean Pty Ltd., Jolimont, WA 6008 and School of Earth and Environment, University of Western Australia WA 6009, Australia 3 Western Australia Museum, Welshpool, WA 6106, Australia 4 Cl- Piers Earcombe at RPS MetOcean Pty Ltd., Jolimont, WA 6008, Australia * Corresponding author El [email protected] Abstract This paper examines the prehistoric marine archaeological potential of relict shorelines off James Price Point, northern Western Australia. In addition to previously registered midden and intertidal fish-trap sites, archaeological excavation at James Price Point has provided evidence of coastal exploitation from at least 5 ky BP In the adjacent marine environment are well-preserved drowned shoreline sediments, that form at least two series of north - south trending linear features with relief of up to 5 m of more above the surrounding seabed, at elevations of - 15 m and -8m respectively, which may date to ~ 9 ky BP and ~ 6 ky BP respectively. The submerged shorelines are associated with four main depositional environments, of which, Tagoon infill' and 'fossil intertidal flats' have the highest preservation potential and highest archaeological potential. This palaeogeography has significant geoheritage value and systematic investigation of these features is likely to contribute to our understanding of early maritime adaptation and resource use in this region. KEYWORDS: submerged landscapes, palaeoshorelines, geoheritage, prehistoric marine cultural heritage, James Price Point INTRODUCTION landscapes include theoretical (Chapman & Lillie 2004; Fischer 2004) and technological approaches (Gaffney et al. 2007; 2009; Mahon et al. 2011; Webster 2008). The Archaeological Potential of Submerged Areas Geoarchaeological approaches use the associations With the rapid expansion of marine industrial between different landforms and different types of developments in many regions of the globe, a key archaeological and/or environmental remains (e.g. challenge is to maximise the opportunities for research Howard and Macklin 1999; Rapp and Hill 1998) to to support collaborative monitoring and management estimate of the potential presence of submerged of known and potential archaeological sites (Evans et archaeological deposits (Gagliano et al. 1982; Ward and al. 2009; Firth, 2015; Flemming 2004; Ward et al. 2014a). Larcombe 2008). This in turn has lead to the development In Australia there has been little conceptual or practical of Indicative Maps of Archaeological Potential or Values understanding of the potential impacts of marine (IMAP; Deeben 2009). Such maps are used to indicate development activities (e.g. ports and harbours) upon the those specific areas of the coastal and marine zone largely unknown prehistoric marine resource. Further, interpreted as having relatively low, medium or high the limited statutory framework for marine prehistoric potential for the presence of archaeological remains in cultural resources means the need for research is even primary and secondary depositional contexts, i.e. in more acute (Kamoot 2014; Staniforth 2007). This major situ or re-deposited (see also Cohen et al. 2014; Ward & knowledge gap in submerged cultural potential is Tarcombe 2008). Delineating boundaries within IMAPs perhaps most apparent off Western Australia where some requires assessment of both the nature of the depositional of the biggest marine developments are occurring and environments as likely sites of occupation and/or where we now have some of the oldest records of coastal concentrations of archaeological artefacts (Deeben 2009), occupation, extending back some 50,000 years (Veth et al. together with consideration of any post-depositional 2014; Veth & O'Connor 2013). modification processes (Rowland & Ulm 2012; Ward et al. Information from drowned sedimentary deposits can 2015). provide valuable information about past environments, Embedded within the established regional past sea levels and associated past cultures (Bailey 2014; geoarchaeological understanding (Ward et al., 2013, Benjamin et al. 2011; Flemming 2004). Models designed 2014b, 2015), this paper applies a geomorphically-based to examine the potential archaeology of submerged approach to assess the archaeological potential of a small (15 km x 40 km) submerged area off northwest Australia, namely the former gas hub development area of James © Royal Society of Western Australia 2016 Price Point, near Broome, on the southern Kimberley 31 Journal of the Royal Society of Western Australia, 99(2), 2016 coast. This assessment is necessarily based on an forms an expansive shallow marine environment with interpretation of (i) the available geological, bathymetric a tropical to sub-tropical oceanographic regime, rich and sedimentary data, including the past and present carbonate production and low terrestrial sediment sedimentary processes and (ii) existing archaeological supply. In the region of James Price Point, the shelf information, including the known and likely past human is broad (100 - 250 km), has relatively low relief and use of terrestrial and coastal environments both of which grades gently into the upper slope at depths of 100 - 150 are outlined below. The aim of this assessment is to show m (Picard et al. 2014). Throughout the Pleistocene, the the considerable potential for prehistoric marine heritage Teveque Shelf and adjacent North West Shelf (Figure 1) with the potential to address specific questions of early have been subject to long periods of sub-aerial exposure maritime adaptation (Ward et al. 2014b; 2015), and where at low-stands of sea level. During the Last Glacial to focus any future research efforts. Maximum (LGM), sea level in region was 100 - 130 m lower than present, and most of the shelf would have been emergent (Lewis et al. 2013; Yokoyama et al. 2000). GEOLOGY, BATHYMETRY AND The prolonged low-stand conditions during the LGM SEDIMENTOLOGY appear to have formed a shelf-wide terrace backed by a 30 m high ridge, now located -125 m below sea level (James et al. 2004). Representing the ancient coastline, Regional setting this ridge is clearly evident on bathymetric surveys of the The continental shelf fringing northwestern Australia North West Shelf (WAMSI 2008). Heywood Shoal Seringapatam Reef BROWSE BASIN Widgingarri Koolan Is Cape • Leveque Dampier \ L h Derby James Price Point NSW Broome Ck Browse Basin outline ' 1 Scheduled area boundary (OPGGSA 2006) - Sub-basin outline Bathymetry contour (depth in metres) Watercourse Figure 1. Map of Browse Basin and Leveque Shelf (© Commonwealth of Australia, Geoscience Australia 2015. This product is released under the Creative Commons Attribution 3.0 Australia Licence, http://creativecommons.org/licences/ by/3.0/au/deed.en). 32 I. Ward et ah: Archaeological assessment of a coastal site at James Price Point Modern sedimentary processes on the continental ah 2011, 2012; Picard et ah 2014) contributes to regional shelf include transport by fast tidal currents and episodic knowledge. High-resolution survey data, including Light cyclone-associated flows (Collins 2011). Coastal areas Detection and Ranging (LiDAR) data (Figure 2) indicates bordering the Leveque Shelf host strong, semi-diurnal the presence of an array of submerged features (Figure 3). tidal currents, and maximum tidal ranges over 10 m Together with available information on the sedimentary (Picard et al. 2014). The Kimberley region experiences sequences and the coastal geology (DSD 2010a; 2010b; frequent tropical lows, with an average of three per year Eliot & Eliot 2008; GSWA2009; Semeniuk 2008), this helps (Lough 1998) producing strong onshore winds, enhanced to delineate four main types of sedimentary deposits or wave energy and storm surges that influence the coastal features as a useful basis for assessing prehistoric marine geomorphology (Elliot & Elliot 2008). Despite this, archaeological potential. These are: undisturbed archaeological material both on and behind • Coastal Limestone - relict reef, probably dating the cliff-top at Cape Leveque indicate long periods from the last interglacial (Marine Isotope Stage 5, of stability (> 800 years) at least on some parts of this MIS 5). (Figure 2, and labelled as 'nearshore rock' Kimberley coast (Barham & O'Connor 2007). in Figure 3). • Palaeoshorelines - A series of coast-parallel James Price Point (JPP) features, including cemented carbonate dune and The coastal geomorphology at James Price Point is coastal deposits. The two main fossil shorelines characterised by a mixture of narrow beaches and rocky (Figure 2) are here referred to as the -8 m and -15 shores, with intertidal reef platforms of lithified coastal m shorelines, relating roughly to mean sea level sediments, small spits and coastal dunes driven by the (MSL), to allow relatively easy comparison with prevailing south-westerly winds, and adjacent Holocene the bathymetric datasets and images (MIS 1/2). terrestrial dunes (Eliot & Eliot 2008). To the south, these • Fossil Intertidal Flats - smooth and low-gradient features give way to low-lying coastal dunes (Shoonta areas landwards of the outer palaeoshoreline Hill sand; Semeniuk 2008), whilst to the north lie eroding (Figure 2). cliffs of red sand (Mowanjum Sand; Semeniuk 1980), locally termed 'Pindan' (Lowe 2003). There is little fluvial • Lagoon Infill - an infilled shore-parallel basin sediment supply to James Price Point or the wider area, between the coastline and -15 m palaeoshoreline but wet-season rain drains across the coastal ridges (labelled 'Marine Sands' in Figure 4) containing and foredunes to the ocean through narrow ephemeral sediments up to 11 m thick (MIS 1/2). channels (Eureka 2010; Kenneally et ah 1996) or as subsurface seepage under the Mowanjum Sand (Mathews et ah 2011). EXISTING ARCHAEOLOGICAL At JPP, the intertidal zone is generally rocky INFORMATION (predominantly coastal limestone) with patches of reef and wide (< 1 km) areas of intertidal sand flats, with Regional archaeological context weathered Broome Sandstone exposed in places at very Early Aboriginal occupation on the west Kimberley low tides. The subtidal zone is generally shallow, with a coast is documented at Widgingarri 1 (from c. 50 ky BP) complex configuration influenced by a series of exposed on the mainland (Veth & O'Connor 2013) and Koolan cemented relict shoreline features, scoured sub-tidal Shelter 2 in the Bucaneer Archipelago (from 27.3 ky BP, channels and fields of large, albeit low mobile, south¬ O'Connor 1999). The presence of shellfish remains and facing sand waves (Figures 2- 4). The seabed sediments shell artefacts dated to between 28 - 26 ky BP at these are generally sands of mixed terrigenous and biogenic sites indicates early exploitation and use of marine composition, with carbonate content increasing offshore. resources by Aboriginal people (O'Connor 1999; Veth Re-deposition occurs through regular transportation by & O'Connor 2013). Between 10,000 and 7,000 years ago, strong, shore-parallel tidal currents. Measured in 34 m as coastlines and islands formed following sea level of water off JPP, spring tidal current speeds regularly rise, previously abandoned rockshelter sites were re¬ attain 0.55 m/s near the bed and 0.8 m at the surface occupied and new coastal sites occupied for the first time (RPS MetOcean 2012). Closer to shore, in 18 m of water, (O'Connor 1999). This rapid settlement of new coastlines near-bed currents are typically 0.5 - 0.55 m/s at spring and islands indicates that people had been living along tides and able to mobilise the sandy sediments. During the Pleistocene coast with well-developed maritime cyclones, current speed can be greatly enhanced. During economies and following the rising sea (O'Connor 1999). Cyclone Laurence (December 2009), in 18 m of water, peak flows attained >1.15 m/s at the surface and 0.92 m/s A mid- to late Holocene sequence of dated middens near the bed, flowing to the south and south-south east and cheniers from Cape Leveque to Roebuck Plains along the shelf. Under these flow conditions, much of indicates continuing Aboriginal occupation of the the seabed would have been in transport, redistributing coastal zone through 6,000 years of coastal progradation much shell midden material and small stone artefacts, (O'Connor & Sullivan 1994; Smith 1987; 1997). South of whilst less mobile stone tools might be buried below Broome, shell middens yield dates between 3 and 1 ky BP sand. (O'Connor and Veth 1993). The presence of flaked glass and historical material at a number of sites indicates that Seabed sedimentary features are key to understanding occupation of these places continued at least until the the geological setting and features, and the Holocene contact period and beyond (O'Connor & Veth 1993). evolution of an area, and necessarily underpin an assessment of archaeological potential. Recent Archaeological sites on the Dampier Peninsula are information on the North West Shelf (e.g. Hengesh et concentrated on the resource-rich coastal margins. 33 Journal of the Royal Society of Western Australia, 99(2), 2016 DR!MS*4729Q32-4 Figure 2. Surface topography and nearshore bathymetric image off JPP, showing detail of: left - the series of parallel N-S lineations of the -15 m shoreline; centre - the relatively flat smooth sea bed of the 'lagoon', and; central right - the NW- SSE shore-parallel lineations of the -8 m shoreline. The modern shoreline shows a rocky low intertidal zone, active upper beach, active and vegetated dunes, and blowouts. The Mowanjum Sand or 'Pindan' plain is located immediately to its landward (from DSD 2010a, Fig.1-8). 34 I. Ward et al.: Archaeological assessment of a coastal site at James Price Point Subtida! features COULOMB POINT Offshore spit Outer beach Beach ridges (tTa> CO qT Beach cr; 0o) °o°o Marsh tn 3O " (pockmarked) J = Nearshore rock Inshore beach Inshore beach and cuspate foreland Sandwaves Small sandwaves Smooth substrate 1JAMES PRICE POINT QUONDONG POINT Kilometers Datum: GDA 1994 MGAZone 51 Figure 3. Main interpreted subtidal features in the James Price Point area, based on Figure 2 (sourced from DSD 2010a, Fig. 1-9). Line A-B marks location of section of Figure 4. 35 Journal of the Royal Society of Western Australia, 99(2), 2016 Figure 4. Simplified conceptual vertical cross-section across the coastline developed from the bathymetric survey, four geotechnical boreholes (three to -20-22 m below seabed, one to 7 m) and some seismic reflection survey results (not to scale; DSD 2010, Fig. 1-6). Coastal limestone is also inferred to occur in places within the lagoon infill but is not illustrated here. Boreholes indicated the Pindan comprised reworked fine and sometimes silty red brown sand, and the basal Broome Formation was represented by weathered very weak sandstone. with major campsites located within 2 km of the ocean metres, and are amongst the largest anthropogenic (Smith 1987:43). The vast majority of recorded coastal intertidal structures in Australasia. More fish traps and sites are shell middens, which vary greatly in location, stone-wall structures may be found by further survey of size, density and the types of shell species exploited. rocky headlands and intertidal rocky outcrops at low tide The middens tend to occur on both Holocene dunes and (Smith 1997: 20). Clearly, similar structures might exist low cliffs of ferruginous red sands and soils (Mowanjum below the present low tide mark. Sands), in deflated sedimentary environments and in stratified deposits. Local coastal archaeology Invariably they include shellfish remains such as In pre-European Australia, Aboriginal people made mangrove/mudflat species Terebralia sp. and Anadara sp., extensive use of the James Price Point area, including and/or rocky intertidal species, such as snail (Nerita sp., as a locally important resource area and water source Turbo sp.), murex (Hexaplex sp.), Trochus sp, clams (Barbatia (Smith 1997:46). The area forms a part of an extensive sp.), oyster (Saccostrea sp.) and baler shell (Melo amphora). song-cycle, which stretches along the coast from Roebuck The remains of other marine species such as fish, turtle and Bay to Coulomb Point, 10 km north of James Price Point dugong also occur (Smith 1997; O'Connor & Veth 1993). (Bradshaw & Fry 1989; Roe & Muecke 1983). Notably, the A number of well-known silcrete quarries occurs traditions of the local Jabirr Jabirr people - whose lands along the west coast of Dampier Peninsula, and many of encompass James Price Point - extend to the adjacent the shell middens in the south west Kimberley contain waters and include offshore features that are visible stone artefacts (Akerman 1975; Akerman & Bindon 1984). several kilometres away (Leo 2012). The 2015 Department Specialised tools found elsewhere in the Kimberley, of Aboriginal Affairs (DAA) Register of Aboriginal Sites such as tula and burren adzes used for wood-working, indicated a number of multi-component archaeological are largely absent on the Dampier Peninsula (Akerman and ethnographic sites, within a 20 km (N-S) x 10 km & Bindon 1984). These are replaced by specialised (E-W) area surrounding the development area. These tools made of shell, including shell adzes, spoons and include mythological and ceremonial sites (12), midden/ anvils used to process shellfish, as well as a variety of artefact scatters (21), two quarries, two fish-trap sites and exotic lithic materials sourced off the peninsula. Further a water source. The two fish traps, Kardilakan-Jajal (DAA evidence of a flexible coastal-economy is the presence Site ID 13504) and Yaljarriny-Gardarlargun (DAA Site ID of 39 late-Holocene stonewall fish traps identified along 13076, previously Waldamany) (Figure 5) constitute the the Dampier coastline (Smith 1997). In the vicinity of only known prehistoric cultural sites in the intertidal Bidyadanga (La Grange) and on the northern Dampier parts of the development area. Three of the Aboriginal Peninsula, these structures extend for hundreds of shell midden sites, Yaljarriny-Gardarlargun (DAA Site 36 I. Ward et ah: Archaeological assessment of a coastal site at James Price Point Figure 5. Photo of Yaljarriny-Gardarlargun fish trap exposed at low tide (scale bar is 1 m). Table 1. List of registered DIA sites (at 2012) and new unregistered sites (Eureka, 2012) at James Price Point. All are terrestrial or coastal. As of 2015, only the Waldaman site remains a registered site. DIA ID no. Site name Site attributes 12864 Inballal Karnbor Ceremonial, Mythological 12900 Ngarrimarran Junu Quarry Quarry, Artefacts /scatter 12902 Kundandu Mythological, Artefacts/scatter, Midden/scatter 12903 Murrjal Mythological, Artefacts/scatter, Midden/scatter 13076 Waldaman (Yaljarriny-Gar darla gun) Skeletal material/Burial, Fish Trap, Artefacts/ scatter, Midden/scatter 13504 Kardilakan - Jajal Ceremonial, Mythological, Fish Trap, Artefacts /scatter, Midden/scatter Not registered Shell Scatter 1 Midden/scatter Not registered Silcrete Quarry Site Low silcrete outcrop with artefacts Not registered Baler Artefact Site (salvaged May 2011) Broken baler shell artefact and scatter ID 13076), Kundandu ('Gardarlagun-South', DAA Site tool stone. Lenses of shell and artefacts are also visible ID 12902) and Inballal Karnbor (DAA Site ID 12864) are in cliff sections but dense grasses and scrub growing on located within the coastal dunes of the development area, the cliff tops typically obscure surface archaeological and other sites within 2-3 km of the development area material. Surveys also identified an additional shell include Ngarrimarran Junu Quarry ('Yaljarriny-Guumbar', midden site, a silcrete quarry and a baler-shell artefact DAA Site ID 12900) and Murrjal (DAA Site ID 12903) (Table 1). Table 2. Dated AMS measurements for shell material Midden sites range from small, discrete concentrations from Waldaman Site (DIA Site ID 13076). Dates, sourced of stone artefacts and shell material (dinner-time from Eureka 2012, are calibrated at 2 standard deviations camps), to large multi-component sites extending for (95%) using the Marine Calibration with a regional offset kilometres along the coast. Shell middens typically (delta R) of 54 ± 30 based on Squire et al. (2013). contain a wide range of shellfish species that are found in the adjacent rocky/intertidal environs. Most sites Material Lab code Depth Radio¬ Calibrated are located in blowouts in the Holocene dunes (Table dated (cm) carbon age (BP) 3) where accumulations of stone artefacts and shell age material, probably representing repeated human visits, Muricadae sp. Wk-31557 4 1385 ± 25 BP 772 - 958 are exposed by (episodic) deflation of stratified deposits. Muricadae sp. Wk-31558 5 1861 ± 25 BP 1271 -1463 The middens' stone artefacts are mostly manufactured Saccostrea sp. Wk-31559 0 1396 ± 26 BP 778 - 971 from locally available silcrete and are dominated by Saccostrea sp. Wk-31560 18 1772 ± 27 BP 1180 - 1349 unmodified flakes, grinding material. Hammerstones, Saccostrea sp. Wk-31561 100 1876 ± 25 BP 1281 -1477 anvils and hearth features are common. Quarry sites are Haliotis sp. Wk-31562 40 1757 ± 28 BP 1173 - 1334 more common on the cliffs that cut into the Mowanjum Saccostrea sp. Wk-31563 100 2486 ± 25 BP 1941 - 2202 Sand, with outcrops of high-quality silcrete suitable for Saccostrea sp. Wk-31564 300 4537 ± 25 BP 4546 - 4803 37 Journal of the Royal Society of Western Australia, 99(2), 2016 Figure 6. Location of Waldaman excavation at James Price Point. The series of shell lenses in the cliff face date from ~ 5 ky BP,~ 2 ky BP and ~ 1 ky BP respectively up the profile. site, located 1.6 km, 6 km and 9.6 km respectively inland DEVELOPMENT OF AN IMAP FOR JAMES on the sand sheets (Eureka 2012). PRICE POINT A sample of Turbo sp. collected in 1988 from an in situ The following describes the prehistoric marine lens of shell at 50-100 cm below the surface of Mowanjum archaeological potential of the James Price Point area Sands immediately north of James Price Point yielded a (see also Figure 7; Table 3). In the absence of an absolute radiocarbon age of 989 - 1282 cal. BP (SUA 2826; Smith chronology for the different landform units in the 1987). A 1 x 1 m excavation, undertaken in 2012 for the development area, the assessment of relative age for any Browse project and within the Yaljarriny-Gardarlagun site, associated potential archaeology is based on available focused on the cliff edge than 200 m south of this first geological and stratigraphic information (DSD 2010a, b; dated shell lens (Figure 6). Although the basal occupation Eliot & Eliot 2008; Lessa & Masselink 2006). layer was not reached, an oyster shell (Saccostrea sp.) from ~3 m below the surface yielded a radiocarbon age range Coastal Limestone (archaeological potential = low- of 4.8 - 4.5 cal. ky BP (Wk-31564) (Table 2) and indicates medium) use of the site for around the last 5,000 years or more (Eureka 2012). Radiocarbon dating of other shell material, Here we use the term coastal limestone to describe presumably representing food remains, including hard cemented features not obviously related to a oyster (Saccostrea sp.), abalone (Haliotis spp.) and murex drowned bathymetric palaeoshoreline feature. Such (.Muricidae sp.) from shallower deposits ranged in age coastal limestones are sandy coastal sediments of mixed from 1.0 - 0.8 ky BP (Wk-31557) to 2.3 -1.9 ky BP (Wk- composition but dominated by carbonate grains, which 31563). These dates correspond well with other midden have been cemented by groundwater carbonates, forming scatters on the south west Kimberley coast (O'Connor & beachrock in the case of the intertidal zone. Generally Veth 1993; O'Connor & Sullivan 1994; Smith 1987), and around 1 m thick, tThe coastal limestone's primary indicate the exploitation of the coastal zone around James location is near the modern shoreline (labelled the Price Point from at least the middle to late ITolocene. 'nearshore rock' of Figure 3), but also occurs in places 38 I. Ward et ah: Archaeological assessment of a coastal site at James Price Point \N3rs\\\\v Coastal Limestone Palaeoshoreline . v.;<v::&>;T: (cid:9632) Lagoon Infill > - - . V.. r.: V'.. ‘ &:S:i (cid:9632) , i w <vX . . \ ®\ '' V Palaeoshoreline* Bt K". (cid:9632)l&iMiiiU \ St,-;-"' ' (cid:9632) ' ' (cid:9632) ' • ' ' V;" V = . • r- Palaeoshoreline (cid:9632)MpaWHMHHlB and/or It - 'GoastaliLimestone . (cid:9632) . — Pafaeo shore I i he Coastal] limestone Lagoon Infill - High Preservation Potential & High Archaeological Potential Palaeoshoreline - Med-High/Variable Preservation Potential & Low-Med Archaeological Potential Coastal Limestone - Variable Preservation & Low-Med Archaeological Potential Palaeoshoreline / Coastal Limestone - Med-High/Variable Preservation Potential & Low-Med Archaeological Potential Woodside Energy Ltd Browse LNG Precinct Development Area Figure 7. IMAP for shallow marine area offshore from James Price Point, showing areas of relatively low (coastal limestone), medium (palaeoshoreline) and high (lagoon) archaeological potential. Refer text for detail. 39 Table 3. Inferred archaeological association within terrestrial, coastal and marine depositional environments at James Price Point (JPP). Landform or Inferred Sediments Archaeological Known sites Preservation Archaeological Observed local archaeology and/or sedimentary age association (DAA Site ID) potential potential related archaeological evidence feature and/or isolated finds Mowanjum Sand Quaternary Ferruginous quartz Primary Both High Medium Discrete stone artefacts and stone and ('Pindan') sand Pleistocene sand with pisoliths, (Geotech Scatter shell scatters recorded in Pindan sand sheets minor clay not registered) sheets, subsurface finds identified through test-pitting J Creeks Quaternary Mostly ferruginous Secondary Isolated finds Low Medium Discrete artefacts recorded in o u Pleistocene quartz sand ephemeral creeks near Quondong Point r n a (Fig- 1) l o f Mowanjum Sand Quaternary Ferruginous quartz Primary Both Low-medium High Lenses of shell and artefacts observed th e ('Pindan') cliffs Pleistocene sand, minor clay (e.g. ID12427, 12900, in Pindan cliffs at and to the north of R 13076) JPP. o y a l Aeolian dune Quaternary Carbonate and Primary, Both Medium High Numerous middens recorded in S o system Holocene siliceous shelly sand Secondary (e.g. ID13076,12901, deflated and stratified deposits in cie 12902,12903, 13504) dunes along many parts of the west ty Kimberley coast. o f W Sandy beach Quaternary Carbonate and Secondary Isolated finds Low Low Isolated artefacts (from cliffs and dune e s t Holocene siliceous shelly sand middens) observed on the beach north e r n and south of JPP. A u s Intertidal flats Lower Cretaceous Cemented sandstone Primary and Sites (e.g. ID 13076, Medium Medium One registered fish trap at James Price tr a Broome Secondary 13504) Point, other known and registered fish l i a Sandstone traps along West Kimberley coast. , 9 9 ( 2 Coastal limestone Pleistocene Cemented carbonate Secondary Isolated finds in beach Variable Low-medium Cemented artefacts in beach rock ) , (Last rock north of JPP (e.g. Cawthra &Uken 2012). 2 0 Interglacial) 16 Pal aeosho reline Early Holocene Carbonate and Secondary Both Medium-high Low-medium Cemented artefacts in fossil dunes (e.g. siliceous shelly sand Dortch &Hesp 1994; Cann et al 1991.) Fossil intertidal Early Holocene Rock platform Secondary Both Medium-high High Known foraging area (e.g. O'Connor & flats Veth 1993, Smith 1997). Lagoon infill Early Holocene Carbonate and Primary and Isolated finds High High Natural 'sink' for eroded artefacts siliceous shelly sand Secondary