Geology of the Dry Creek Site; a Stratified Early Man Site in Interior Alaska

1977 ◽  
Vol 7 (2) ◽  
pp. 149-176 ◽  
Author(s):  
Robert M. Thorson ◽  
Thomas D. Hamilton
Keyword(s):  
Late Pleistocene ◽  
Local Source ◽  
Time Range ◽  
Geologic Mapping ◽  
Human Occupation ◽  
Alaska Range ◽  
Radiocarbon Dates ◽  
Glacial Outwash ◽  
Loess Deposition ◽  
Formed Part

The Dry Creek archeologic site contains a stratified record of late Pleistocene human occupation in central Alaska. Four archeologic components occur within a sequence of multiple loess and sand layers which together form a 2-m cap above weathered glacial outwash. The two oldest components appear to be of late Pleistocene age and occur with the bones of extinct game animals. Geologic mapping, stratigraphic correlations, radiocarbon dating, and sediment analyses indicate that the basal loess units formed part of a widespread blanket that was associated with an arctic steppe environment and with stream aggradation during waning phases of the last major glaciation of the Alaska Range. These basal loess beds contain artifacts for which radiocarbon dates and typologic correlations suggest a time range of perhaps 12,000–9000 yr ago. A long subsequent episode of cultural sterility was associated with waning loess deposition and development of a cryoturbated tundra soil above shallow permafrost. Sand deposition from local source areas predominated during the middle and late Holocene, and buried Subarctic Brown Soils indicate that a forest fringe developed on bluff-edge sand sheets along Dry Creek. The youngest archeologic component, which is associated with the deepest forest soil, indicates intermittent human occupation of the site between about 4700 and 3400 14C yr BP.

Late Pleistocene Human Friction Skin Prints from Pendejo Cave, New Mexico

1996 ◽  
Vol 61 (2) ◽  
pp. 357-376 ◽  
Author(s):  
Donald Chrisman ◽  
Richard S. MacNeish ◽  
Jamshed Mavalwala ◽  
Howard Savage
Keyword(s):  
New Mexico ◽  
Late Pleistocene ◽  
New World ◽  
Human Remains ◽  
Careful Analysis ◽  
Human Origin ◽  
Human Occupation ◽  
Radiocarbon Dates ◽  
Human Construction ◽  
Botanical Remains

In the excavation of Pendejo Cave (FB 9366) near Orogrande, New Mexico, 16 friction skin imprints were found in five stratified zones on clay nodules, baked at over 120°C. After careful analysis, expert dermatoglyphologists determined that these imprints had positive primate characteristics. The imprints are probably of human origin, since no other primates are known to have existed in prehistoric New Mexico. Eight of the imprints occurred in three well-dated zones falling in the late Pleistocene. These zones have direct radiocarbon dates between 12,000 and 37,000 B.P. In addition to their association with radiocarbon determinations, the prints come from three of 24 stratified zones, intensively studied by geologists and pedologists, that are dated in sequence by 34 other radiocarbon determinations acquired from four different laboratories. The imprints are associated with a column of over 35,000 paleontological specimens and more than 15,000 botanical remains. These specimens indicate Pleistocene changes and supply evidence of human transportation and modification of various materials. The prints are also associated with artifacts, ecofacts, features of human construction, and human remains. The imprint specimens therefore provide evidence of Pleistocene human occupation in the New World.

scholarly journals Radiocarbon, Soil, and Artifact Chronologies for An Early Southern Oregon Coastal Site

Radiocarbon ◽  
2005 ◽  
Vol 47 (3) ◽  
pp. 383-394 ◽  
Author(s):  
Roberta Hall ◽  
Loren G Davis ◽  
Samuel Willis ◽  
Matthew Fillmore
Keyword(s):  
Late Pleistocene ◽  
Texture Classification ◽  
Archaeological Site ◽  
Particle Size Analysis ◽  
Early Holocene ◽  
Size Analysis ◽  
Human Occupation ◽  
Radiocarbon Dates ◽  
Middle Holocene ◽  
History Of

Radiocarbon dates together with geoarchaeological, soil, and lithic analyses are presented to describe archaeological site 35-CS-9 in Bandon Ocean Wayside State Park, Oregon, northwestern USA. One of the few Oregon middle-Holocene coastal sites that includes sediments and artifacts dating to the early Holocene and possibly to the late Pleistocene, it was recorded in 1951 and surface surveyed by archaeologists in 1975, 1986, and 1991, but its depth and antiquity were not tested. In February 2002, we studied the site's stratigraphy and sediments and described 8 strata from the aeolian surface to bedrock at 350 cm depth. Soil samples taken from a cut bank for texture classification, particle size analysis, pH, carbon content, and chemical analysis suggested that the site represented a complete history of Holocene deposits. Excavation of 2 test units in August 2002 uncovered substantial lithic and charcoal remains that confirm a protracted middle-Holocene occupation and suggest that human occupation began in the early Holocene. Charcoal recovered at 235–245 cm dated to 11,000 14C BP, and the deepest lithic artifact was recovered in a level at 215–225 cm. Whether the human occupation was continuous throughout the Holocene, and whether it began in the early Holocene or in the late Pleistocene, can only be determined with further excavations.

Too Little, Too Late? The Radiocarbon Chronology of Alaska and the Peopling of the New World

2006 ◽  
Vol 71 (4) ◽  
pp. 595-620 ◽  
Author(s):  
Michael R. Bever
Keyword(s):  
Native Americans ◽  
Late Pleistocene ◽  
New World ◽  
Archaeological Record ◽  
Human Occupation ◽  
Radiocarbon Dates ◽  
Point Of Entry ◽  
Central Asian ◽  
Terminal Pleistocene ◽  
Radiocarbon Chronology

Alaska is commonly viewed as a gateway between the Old and New Worlds, and as such, figures prominently in most models of the peopling of the New World. With a growing number of archaeological sites dating to the terminal Pleistocene, Alaska might be expected to provide direct evidence bearing on the colonization of the Americas. Based on 27 site components with 114 radiocarbon dates, this paper discusses the archaeological record of late Pleistocene Alaska, organized around the characteristics and chronology of three complexes: the microblade-bearing Denali complex, the Nenana complex, and the Mesa complex. This paper shows that the archaeological record of late Pleistocene Alaska is quite diverse, and not lacking in controversy and conflicting interpretations. In addition, this period of archaeological diversity coincides with the Younger Dryas climatic event. However, none of the reliably dated sites is older than the earliest evidence of human occupation further south in the Americas. Despite this, evidence from DNA studies points strongly to a north-central Asian homeland for Native Americans, upholding Alaska as the point of entry into the New World. Suggestions are offered, then, as to why the Alaskan record remains silent about the initial peopling of the New World.

A late pleistocene human presence at Huaca Prieta, Peru, and early Pacific Coastal adaptations

2012 ◽  
Vol 77 (3) ◽  
pp. 418-423 ◽  
Author(s):  
Tom D. Dillehay ◽  
Duccio Bonavia ◽  
Steve L. Goodbred ◽  
Mario Pino ◽  
Victor Vásquez ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Pacific Coast ◽  
Coastal Environments ◽  
Human Occupation ◽  
Radiocarbon Dates ◽  
The Pacific ◽  
Northern Peru ◽  
Coastal Adaptations ◽  
New Evidence ◽  
Early Human

Archaeological excavations in deep pre-mound levels at Huaca Prieta in northern Peru have yielded new evidence of late Pleistocene cultural deposits that shed insights into the early human occupation of the Pacific coast of South America. Radiocarbon dates place this occupation between ~ 14,200 and 13,300 cal yr BP. The cultural evidence shares certain basic technological and subsistence traits, including maritime resources and simple flake tools, with previously discovered late Pleistocene sites along the Pacific coast of Peru and Chile. The results help to expand our knowledge of early maritime societies and human adaption to changing coastal environments.

scholarly journals Calibration of Radiocarbon Dates for the Late Pleistocene Using U/Th Dates on Stalagmites

Radiocarbon ◽  
1997 ◽  
Vol 39 (1) ◽  
pp. 27-32 ◽  
Author(s):  
John C. Vogel ◽  
Joel Kronfeld
Keyword(s):  
South Africa ◽  
Magnetic Dipole ◽  
Satisfactory Agreement ◽  
Late Pleistocene ◽  
Calibration Curve ◽  
Dipole Field ◽  
Radiocarbon Dates ◽  
The Past ◽  
The Earth ◽  
Magnetic Dipole Field

Twenty paired 14C and U/Th dates covering most of the past 50,000 yr have been obtained on a stalagmite from the Cango Caves in South Africa as well as some additional age-pairs on two stalagmites from Tasmania that partially fill a gap between 7 ka and 17 ka ago. After allowance is made for the initial apparent 14C ages, the age-pairs between 7 ka and 20 ka show satisfactory agreement with the coral data of Bard et al. (1990, 1993). The results for the Cango stalagmite between 25 ka and 50 ka show the 14C dates to be substantially younger than the U/Th dates except at 49 ka and 29 ka, where near correspondence occurs. The discrepancies may be explained by variations in 14C production caused by changes in the magnetic dipole field of the Earth. A tentative calibration curve for this period is offered.

Paleoenvironmental analysis of wet meadow in the Deseado Massif: Implications for the Holocene occupation of Argentinian Patagonia

The Holocene ◽  
2021 ◽  
pp. 095968362110259
Author(s):  
Bruno Mosquera ◽  
María V Mancini
Keyword(s):  
Environmental Changes ◽  
Low Energy ◽  
Semiarid Region ◽  
Human Occupation ◽  
Wet Meadow ◽  
Radiocarbon Dates ◽  
Sedimentation Environment ◽  
Dry Conditions ◽  
Paleoenvironmental Analysis ◽  
Deseado Massif

Paleoenvironmental data from wet-meadow environments in the arid-semiarid region of Patagonia are still incipient and the paleoenvironmental records came from pollen sequences of caves and rockshelters. The main reasons to study wetland records are their undisturbed (by humans) sedimentologic continuity, in contrast to deposits in rock shelters and caves; and their regional presentation of environmental changes that can be compared to archeological data. The aim of this paper is to evaluate the past hydrological dynamic of a wet-meadow from Deseado Massif and its relationship with the human occupation. For this purpose, we present the results of the sediment and pollen analysis of Mallín La Primavera wet-meadow that provide a sequence starting in the mid-Holocene. The results indicate a lower water table in the mallín prior to 6900 cal yr BP. Sediment analysis indicates low energy sedimentation environment with flood events and very low energy streams. Human occupational data show chronological discontinuities in mid-Holocene in several regions of Patagonia and the southern cone. In the studied region, two chronological hiatuses (7828–6434 cal yr BP and 3005–2710 cal yr BP) where recognized that appear to correlate with shrub steppes, indicating dry conditions. These conditions may explain the lack of archeological radiocarbon dates in the area during this period. The integration of sediment and pollen results from the Deseado Massif indicates dry and windy conditions for the middle Holocene. The lack of archeological radiocarbon dates would have been influenced by the loss of moisture in water sources such as springs and their associated wet meadows ( mallines).

Glandy Cross: A Later Prehistoric Monumental Complex in Carmarthenshire, Wales

2000 ◽  
Vol 66 ◽  
pp. 257-295 ◽  
Author(s):  
Trevor Kirk ◽  
George Williams ◽  
A. Caseldine ◽  
J. Crowther ◽  
I. Darke ◽  
...  
Keyword(s):  
Survey Data ◽  
Social Practice ◽  
Heritage Management ◽  
Data Set ◽  
Radiocarbon Dates ◽  
Historical Process ◽  
Project Report ◽  
The Social ◽  
Formed Part ◽  
George Williams

Excavations at the Glandy Cross monumental complex during 1991 and 1992 formed part of an integrated programme of evaluation, rescue, and research by Dyfed Archaeological Trust (DAT). Enclosures, pit circles, standing stones, and cairns were excavated and their environs systematically surveyed. Radiocarbon dates show the monumental complex to have been constructed between c. 2190–1530 cal BC. However, the earliest activity at the site may date to c. 4470–4230 cal BC. A defended enclosure was constructed on the peripheries of the complex c. 830–510 cal BC.The 1991–92 excavation results are presented along with a summary of survey, salvage, and research spanning the period 1981 to 1992. This new data set is tentatively interpreted in terms of historical process and the social practice of monumental construction. A brief commentary on heritage management at Glandy Cross is also presented.A note on authorship: one of the authors (George Williams) directed the Glandy Cross excavations during 1991–92 and prepared an initial draft of the project report. Following his retirement from DAT a project editor (Trevor Kirk) was commissioned by Cadw: Welsh Historic Monuments to guide the project towards publication. This paper was largely penned by the project editor, though the excavation and survey data were produced by George Williams and his fieldwork team. The excavation and survey archives are held at the offices of DAT.

Paleoecological and archaeological implications of a Late Pleistocene/Early Holocene record of vegetation and climate from the Pacific coastal plain of Panama

2003 ◽  
Vol 59 (1) ◽  
pp. 79-87 ◽  
Author(s):  
Dolores R. Piperno ◽  
John G. Jones
Keyword(s):  
Tropical Forest ◽  
Late Pleistocene ◽  
Coastal Plain ◽  
Deciduous Forest ◽  
Early Holocene ◽  
Tropical Deciduous Forest ◽  
Human Occupation ◽  
Core Sediment ◽  
The Pacific ◽  
Holocene Record

AbstractA phytolith record from Monte Oscuro, a crater lake located 10 m above sea level on the Pacific coastal plain of Panama, shows that during the Late Pleistocene the lake bed was dry and savanna-like vegetation expanded at the expense of tropical deciduous forest, the modern potential vegetation. A significant reduction of precipitation below current levels was almost certainly required to effect the changes observed. Core sediment characteristics indicate that permanent inundation of the Monte Oscuro basin with water occurred at about 10,500 14C yr B.P. Pollen and phytolith records show that deciduous tropical forest expanded into the lake’s watershed during the early Holocene. Significant burning of the vegetation and increases of weedy plants at ca. 7500 to 7000 14C yr B.P. indicate disturbance, which most likely resulted from early human occupation of the seasonal tropical forest near Monte Oscuro and the development of slash-and-burn methods of cultivation.

Late Pleistocene Human Occupation In Tasmania: A Reply To Thomas

1994 ◽  
Vol 38 (1) ◽  
pp. 28-35 ◽  
Author(s):  
R. Cosgrove ◽  
J. Allen ◽  
B. Marshall
Keyword(s):  
Late Pleistocene ◽  
Human Occupation
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