Pieces in vertical movement—a model for rockshelter archaeology

1977 ◽  
Vol 43 ◽  
pp. 349-353 ◽  
Author(s):  
Ari Siiriäinen
Keyword(s):  
Vertical Movement ◽  
Stone Age ◽  
Radiocarbon Dates ◽  
Fine Grained ◽  
Late Stone Age ◽  
Vertical Scale ◽  
Small Stone ◽  
Image Position

In 1973, excavations were carried out in a rockshelter called River Rockshelter in Laikipia District, Kenya (the results will be published in AZANIA). The archaeological deposit was c 80 cm thick and contained an abundant lithic material belonging to a Late Stone Age industry. The deposit was excavated in seven layers each 5–15 cm thick. The stratigraphy was as follows (fig. 1):1. 0–10 cm, brown, loose fine-grained earth;2. 10–35 cm, brown, hard, medium-grained soil with stone slabs;3. 35–50 cm, greyish brown, hard gravel with small stone slabs;4. 50 cm + grey, hard gravel.Stratigraphical layers, radiocarbon dates and excavated layers from River Rockshelter. Vertical scale 1/10.

Recent Archaeological Research and Dates from West Africa

1986 ◽  
Vol 27 (3) ◽  
pp. 413-442 ◽  
Author(s):  
Susan Keech McIntosh ◽  
Roderick J. McIntosh
Keyword(s):  
West Africa ◽  
Archaeological Research ◽  
Stone Age ◽  
Long Distance ◽  
True Nature ◽  
Radiocarbon Dates ◽  
Late Stone Age ◽  
Or Groups ◽  
First Millennium ◽  
Inland Niger Delta

This article reports over 250 new radiocarbon dates relevant to recent archaeological research in West Africa. Thanks to the continuing trend towards series of dates from either single sites or groups of related sites, some major blanks on the archaeological map of West Africa have been replaced by well-dated regional sequences. An example is the Malian Sahara, where palaeoenvironmental and archaeological investigations at a large number of sites have clarified the relationship between Holocene climatic change and Late Stone Age occupation. Other areas that were largely archaeological unknowns until the research reported in this article was undertaken include the middle Senegal valley, the Inland Niger Delta, and the Bassar region in Togo. Other research included here reinterprets previously studied, ‘classic’ Late Stone Age sequences, such as Adrar Bous, Kintampo and Tichitt. There are also new dates and details for early copper in Niger and Mauritania which prompt a reconsideration of the true nature of this proposed ‘Copper Age’. Of particular significance to general reconstructions of West African prehistory is the documentation of regional and long-distance trade accompanying the emergence of complex societies along the Middle Senegal and Middle Niger in the first millennium A.D.The article begins with a brief commentary on calibration, in view of the recent publication of high-precision calibration curves. Several prevalent misconceptions of what calibration is and what it ought to do are addressed. We suggest that archaeologists and historians should routinely make reference to calibration in order to avoid misinterpreting radiocarbon results.

Archaeology in Benin

1972 ◽  
Vol 13 (1) ◽  
pp. 25-38 ◽  
Author(s):  
Graham Connah
Keyword(s):  
Nineteenth Century ◽  
Early Development ◽  
Thirteenth Century ◽  
Stone Age ◽  
Radiocarbon Dates ◽  
Benin City ◽  
Late Stone Age ◽  
Ground Stone ◽  
Archaeological Work ◽  
The City

Excavations and fieldwork in and around Benin City in the years 1961–4 have established the outlines of an archaeological sequence. This sequence is based on radiocarbon dates for stratified deposits, on a statistical examination of pottery form and decoration, and on datable European imports. The sequence suggested by the evidence extends from about the thirteenth century A.D. to the present time, although the survival of locally found ground stone axes in Benin ritual indicates that the area may well have been inhabited since Late Stone Age times. There is evidence for the artistic use of copper and its alloys from at least the thirteenth century onwards, but it is not known how long it had already been in use. Smithed and chased tin bronzes were found in a thirteenth-century context, whereas cast leaded brass was found in use in a nineteenth-century context. There is little evidence for lost-wax casting in Benin in early times. The writer suggests that future archaeological work should make the origins and early development of the city a priority.

scholarly journals Demographic developments in Stone Age coastal western Norway by proxy of radiocarbon dates, stray finds and palynological data

2021 ◽  
Vol 259 ◽  
pp. 106898
Author(s):  
Knut Andreas Bergsvik ◽  
Kim Darmark ◽  
Kari Loe Hjelle ◽  
Jostein Aksdal ◽  
Leif Inge Åstveit
Keyword(s):  
Stone Age ◽  
Radiocarbon Dates ◽  
Palynological Data ◽  
Western Norway

The Hayes Tephra Deposits, and Upper Holocene Marker Horizon in South-Central Alaska

1990 ◽  
Vol 33 (3) ◽  
pp. 276-290 ◽  
Author(s):  
James R. Riehle ◽  
Peter M. Bowers ◽  
Thomas A. Ager
Keyword(s):  
Cook Inlet ◽  
Radiocarbon Dates ◽  
Fine Grained ◽  
South Central ◽  
Inlet Region ◽  
Tephra Deposits ◽  
Phenocryst Content

AbstractThe most widespread of all Holocene tephra deposits in the Cook Inlet region of south-central Alaska is a set of deposits from Hayes volcano. Because of their unique phenocryst content—biotite in rare amounts and a high proportion of amphibole to pyroxene—the deposits are readily identifiable at all but the most distant sites where they are very fine grained. Eighteen radiocarbon dates from eight upland sites limit the age of the tephra set to between about 3500 and 3800 yr. The set originated at Hayes volcano in the Tordrillo Mountains 150 km northwest of Anchorage; seven or possibly eight closely succeeding deposits, low-silica dacite in composition, compose two main lobes that extend northeast for 400 km and south for at least 250 km from the vent. We estimate the total tephra volume to be 10 km3; multiple layers imply four to six larger and two or three smaller eruptions. The deposits are a nearly isochronous marker horizon that should be useful in future archeologic, geologic, and palynologic studies in the region.

The Cyrenaican Prehistory Project 2012: the sixth season of excavations in the Haua Fteah cave

2013 ◽  
Vol 44 ◽  
pp. 113-125 ◽  
Author(s):  
Ryan Rabett ◽  
Lucy Farr ◽  
Evan Hill ◽  
Chris Hunt ◽  
Ross Lane ◽  
...  
Keyword(s):  
Seismic Event ◽  
Middle Stone Age ◽  
Arid Environments ◽  
Stone Age ◽  
Late Stone Age ◽  
Climatic Regime ◽  
Molluscan Fauna ◽  
Trench Area ◽  
Mis 5 ◽  
Deep Sounding

AbstractThe paper reports on the sixth season of fieldwork of the Cyrenaican Prehistory Project (CPP) undertaken in September 2012. As in the spring 2012 season, work focussed on the Haua Fteah cave and on studies of materials excavated in previous seasons, with no fieldwork undertaken elsewhere in the Gebel Akhdar. An important discovery, in a sounding excavated below the base of McBurney's 1955 Deep Sounding (Trench S), is of a rockfall or roof collapse conceivably dating to the cold climatic regime of Marine Isotope Stage (MIS) 6 (globally dated to c. 190–130 ka) but more likely the result of a seismic event within MIS 5 (globally dated to c. 130–80 ka). The sediments and associated molluscan fauna in Trench S and in Trench D, a trench being cut down the side of the Deep Sounding, indicate that this part of the cave was at least seasonally waterlogged during the accumulation, probably during MIS 5, of the ~6.5 m of sediment cut through by the Deep Sounding. Evidence for human frequentation of the cave in this period is more or less visible depending on how close the trench area was to standing water as it fluctuated through time. Trench M, the trench being cut down the side of McBurney's Middle Trench, has now reached the depth of the latest Middle Stone Age or Middle Palaeolithic (Levalloiso-Mousterian) industries. The preliminary indications from its excavation are that the transition from the Levalloiso-Mousterian to the blade-based Upper Palaeolithic or Late Stone Age Dabban industry was complex and perhaps protracted, at a time when the climate was oscillating between warm-stage stable environmental conditions and colder and more arid environments. The estimated age of the sediments, c. 50–40 ka, places these oscillations within the earlier part of MIS 3 (globally dated to 60–24 ka), when global climates experienced rapid fluctuations as part of an overall trend to increasing aridity and cold.

A Local Late Stone Age Development

1954 ◽  
Vol 9 (35) ◽  
pp. 103 ◽  
Author(s):  
Ione Rudner ◽  
Jalmar Rudner
Keyword(s):  
Stone Age ◽  
Late Stone Age

Subsurface sediment profiles below Point Pelee: indicators of postglacial evolution in western Lake Erie

1998 ◽  
Vol 35 (1) ◽  
pp. 88-99
Author(s):  
John P Coakley ◽  
Allan S Crowe ◽  
Patrice A Huddart
Keyword(s):  
Lake Levels ◽  
Dune Sand ◽  
Radiocarbon Dates ◽  
Subsurface Sediment ◽  
Fine Grained ◽  
Western Lake ◽  
Planar Wave ◽  
Point Pelee ◽  
Sediment Data ◽  
Point Pelee National Park

An extensive drilling program, undertaken along the western barrier bar at Point Pelee National Park, Ontario, Canada, yielded considerable subsurface sediment data relevant to the nature and lateral geometry of sedimentary units below the Point Pelee foreland. Four major sedimentary units were identified: a basal clay-rich till, a fine-grained glaciolacustrine sand, a medium-grained sand unit (subdivided into a poorly sorted shoreface sand and an aeolian (dune) sand derived from the shoreface sand), and an organic marsh (gyttja) deposit. The present study confirms the existence of a planar, wave-eroded till surface below the southern portion of Point Pelee at an elevation of approximately 164 m asl. Following this low-water period in the basin, lake levels rose abruptly to an elevation several metres above 172 m asl. This resulted in erosion of the upper part of the glaciolacustrine sand during a later period of stable higher lake levels, perhaps coinciding with the Nipissing flood event (about 4000 BP). This resulted in a planar surface at approximately 169.5 m asl. Several radiocarbon dates on basal gyttja from the marsh (averaging 3200 BP) reflect a subsequent drop in levels to about 2-3 m below present levels. Though undated, the initiation of shoreface and dune sand deposition is roughly coeval with the basal marsh deposits.

Archaeology of Botswana

2021 ◽  
Author(s):  
Carla Klehm
Keyword(s):  
Indian Ocean ◽  
Iron Age ◽  
Middle Stone Age ◽  
Stone Age ◽  
Social Dimensions ◽  
Late Stone Age ◽  
The Social ◽  
Economic Strategies ◽  
Fish Exploitation ◽  
The Indian Ocean

The prehistory of Botswana concerns the sophisticated environmental knowledge, economic strategies, and social networks of the hunter-gatherer, pastoralists, and agropastoralist communities that have called Botswana home. Diverse subsistence strategies and societal structures ranging from heterarchical to hierarchical have coincided and responded flexibly to climate and environmental variables. Botswana has also played a central, but often overlooked, role in precolonial trade within the interior of Africa and across the Indian Ocean. Botswana contains well-preserved archaeological records for the Middle Stone Age, Late Stone Age, and Iron Age periods, including one of the highest concentrations of rock art in the world at Tsodilo Hills. The prehistory of Botswana extends over 100,000 years and includes successful, innovative, and adaptive occupations in a wide variety of environmental zones, from the Okavango Delta to the Kalahari sandveld, and better-watered hardveld areas in the east. Stone Age peoples adapted to both arid and wet lands, and the archaeological record includes early evidence for freshwater fish exploitation. Hunting with bone points dates to 35,000 years ago, with additional evidence for poisonous, reversible arrowheads between 21,000 and 30,000 years ago. Evidence for ritualized behavior through rock paintings, rock carvings, and the intentional destruction and abandonment of stone tools at Tsodilo Hills provides further insights to the social dimensions of early peoples. In the Iron Age, hunter-gatherer communities and agropastoralists participated in a regional and later protoglobal trade across the Indian Ocean for a thousand years before European involvement; as the regional economy intensified, large polities such as Bosutswe and even kingdoms such as the Butua state emerged, controlling access to resources such as game, ivory, salt, specularite, and gold. In the modern era, the historical archaeology of sites such as Old Palapye (Phalatswe) provide additional insight to historical documents that can contradict Eurocentric understandings of Botswana’s past.

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