Lithic Raw Material Prospects in the Mojave Desert, California
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UC Merced Journal of California and Great Basin Anthropology Title Lithic Raw Material Prospects in the Mojave Desert, California Permalink https://escholarship.org/uc/item/8np7g12w Journal Journal of California and Great Basin Anthropology, 11(2) ISSN 0191-3557 Authors Wilke, Philip J. Schroth, Adella B. Publication Date 1989-07-01 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Journal of California and Great Basin Anthropology Vol. 11, No. 2, pp. 146-174 (1989). Lithic Raw Material Prospects in the Mojave Desert, California PHILIP J. WILKE and ADELLA B. SCHROTH, Dept. of Anthropology, Univ. of California, Riverside, CA 92521. A HIS paper discusses lithic raw material THEORETICAL BACKGROUND prospects (or simply "prospects"), places where potentially flakeable tool stone was Acquisition of tool stone by aboriginal assayed or tested for quality. It characterizes peoples was an industry that in terms of scale this site type and contrasts it with quarries, varied greatly from one situation to another. places where stone was obtained consistently The large and well-known quarries of the and in quantity, and places where stone was western United States represent one end of picked up, used, and discarded with little the spectrum. These include the AUbates modification. We believe prospects represent silicified dolomite quarries, Texas; Spanish a major archaeological site type that has re Diggings quartzite quarries, Wyoming; ceived inadequate attention in the literature. Tosawihi opalite quarries, Nevada; and Casa We describe here a prospect site (CA- Diablo and Coso obsidian quarries, California, SBr-5872), characterize its assemblage, and to name a few. The thousands of metric tons interpret the behavioral context represented of tool stone that must have been taken from by it. We believe the activities represented at these and other major quarries suggest for the site were fully embedded within some pri malized acquisition, reduction, and distribu mary (probably subsistence-related) strategy, tion of stone, perhaps in some cases by but that the activity was more structured than specialists, throughout much of prehistory. the casual selection of useful pieces of stone. The physical and chemical tracing of stone We also believe the site is typical of many on from such sources to elucidate patterns of the landscape of the western United States prehistoric exchange is a major research effort and that such assemblages can only be in archaeology. interpreted with respect to the behavioral At the other end of the spectrum is non- contexts responsible for them. We also draw quarried stone, that obtained in a casual and comparisons with several other examples of expedient manner as the occasion required by raw material prospects in the Mojave Desert. people engaged in other activities. Few The principal site described here is one at studies have focused on such informal indus which people occupied a short-term camp, tries in the aboriginal western United States. probably many times. During such occupa Gould (1977) discussed acquisition of non- tions, they tested cobbles and obtained tool quarried stone as a common aspect of Aus stone in limited supplies and of varying tralian aboriginal lithic technology. He wrote: quality on the immediately adjacent terrain. Consistent acquisition of high-quality tool At the outset it is important to distinguish between stone materials gathered by the desert stone occurred at actual quarries 1-2 km. away Aborigines from definite quarries, that is where good-quality chert, chalcedony, and specific localities where usable stone is available jasper were obtained in quantity. known to the Aborigines and visited by them LITHIC RAW MATERIAL PROSPECTS 147 [sic], and non-quarried stone, which is obtained schedules. Very rarely, and then only when from the surface of the ground at or near the things have gone wrong, does one go out into the spot where it is needed for a particular task. environment for the express and exclusive purpose In this latter case, the stone comes from a non- of obtaining raw material for tools [Binford localised source which may be visited only once 1979:259, emphasis in original]. [Gould 1977:163]. The extent to which these comments were Gould went on to describe the landscape of intended to be specific to the Nunamiut, or the Western Desert of Australia as one where more generally applicable to interpretation of stone suitable for tool use generally can be archaeological assemblages, is uncertain. obtained from the surface with little search or Binford's ideas may approximate Gould's effort. He (1977:164) then contrasted the description of nonquarried stone in aboriginal behavioral situation at quarries and non- Australia, but we believe his comments were quarried-stone-acquisition localities where directed more at the "hidden agenda" aspect Aborigines obtained stone: of stone acquisition. That is to say that we At quarry sites one sees Aborigines obtaining believe his comments referred to side-trips flakes and small lumps or cores which are made to quarries to obtain stone whUe people carried away and further trimmed for specific were en route to some other destination, such uses. ... At more generalised non-quarry as on some subsistence-related pursuit. What localities, however, stones were used for immediate tasks on the spot. ... In every case ever the case, Binford's ideas about raw observed the Aborigines always disposed of the material acquisition are completely at odds tools that were manufactured and used at non- with common sense when one stands on any quarry locations at these same places. They of a hundred renowned aboriginal quarries in were never observed to carry the tools away to a habitation camp or some other locality for the western United States. The number and further retouch and/or use. magnitude of excavated quarry pits at some Having built a convincing case for the expe sites (such as Tosawihi and Alibates), the dient acquisition, reduction, use, and on-site standardized approach to cobble/boulder discard of tool stone, Gould (1977:167) con reduction, staging of quarry blanks and cores, cluded that actual quarried stone represented and long-distance distributional data all point "only a tiny fraction of the total amount of to formalized, highly structured, and intensive lithic material used within the cultural stone acquisition in prehistory. system." Between these two extremes (organized, Binford (1979:259-261, 270) did not dis industrial, primary-strategy quarrying and tinguish raw material extracted for transport distribution vs. casual, expedient, embedded- and use elsewhere from that obtained on the strategy picking up of stone off the land landscape for immediate use. He did say that scape), and certainly closer to the latter, was among the Nunamiut Eskimo, with whom he another strategy by which stone was acquired conducted ethnoarchaeological research, most in prehistory. This strategy was one of inten raw material was obtained in the context of an tionally prospecting for stone at places that extractive strategy embedded within some sometimes yielded useful material but that primary subsistence-related strategy: never did so consistently or in sufficient quantity to result in what most archaeologists Raw materials used in the manufacture of would call aboriginal quarries. We doubt implements are normally obtained incidentally anyone consistently went to such places to get to the normd execution of basic subsistence tasks. Put another way, procurement of raw tool stone, but people did try to find useful materials is embedded in basic subsistence material on occasion when they happened to 148 JOURNAL OF CALIFORNIA AND GREAT BASIN ANTHROPOLOGY be at the spot for other reasons. In other thereby better understand these data. cases, they may have located outstanding veins or nodules of material and returned with CA-SBR-5872: A LITHIC RAW appropriate tools and attempted, successfully MATERIAL PROSPECT or otherwise, to remove such material. We SBr-5872 is located at the south end of the refer to these places as lithic raw material Castle Mountains, a small Tertiary volcanic prospects, or simply/»TO.spec^s. range in eastern San Bernardino County, Tool stone seldom was quarried at California, and adjacent parts of Clark prospects, and it never was quarried at County, Nevada (Fig. 1). The geologic history nonquarry sites of the kind described by of the range is complex, and involved exten Gould. Therefore, a clear terminology is sive volcanism and geothermal activity (Linder needed to distinguish the two site types. We 1989). Deposits of siliceous sedimentary are satisfied with the term "lithic raw material stone, apparently formed through geothermal prospect" because it clearly describes the activity by replacement of existing rhyolite behavior that occurred at such sites. We with chalcedonic quartz, outcrop along the believe, however, that nonquarried-stone- eroded base of the range. Flanking alluvial acquisition sites of the kind discussed by fans contain chert and chalcedony clasts, Gould should be identified by a label that which vary widely in occurrence and quality. more satisfactorily describes the ephemeral Extensive use was made of these materials for and nonredundant activities that occurred at tool stone by the prehistoric inhabitants of the them. Toward that end, we term such places region. Rhyolite and other rocks suitable for ephemeral stone acquisition and use sites. use in tool manufacture occur also, but were In the context of the above-referenced sought less often for tool stone. discussions, it should be pointed out that The site is located on a low ridge (eleva neither Gould nor Binford commented on the tion 1,275 m.) that extends south from the difficulty of pressure flaking most raw cherts, range, and consists of a highly discontinuous, chalcedonies, and jaspers, and the degree to light scatter of tested cobbles, cores, debitage, which the flakeabiHty of such stone is and other artifacts. To the east and west are improved by careful heat treatment.