Late Holocene human occupation of the Quequén Grande River valley bottom

2003 ◽  
Vol 2003 (4) ◽  
pp. 1-27 ◽  
Author(s):  
Gustavo Martínez ◽  
Quentin Mackie
Keyword(s):  
Late Holocene ◽  
River Valley ◽  
Human Occupation ◽  
Valley Bottom

Late Holocene human occupation of the Patagonian forests: a case study in the Cisnes river basin

Antiquity ◽  
2008 ◽  
Vol 82 (317) ◽  
pp. 560-570 ◽  
Author(s):  
César A. Méndez M. ◽  
Omar R. Reyes B.
Keyword(s):  
River Basin ◽  
Late Holocene ◽  
River Valley ◽  
Human Occupation ◽  
Compare And Contrast ◽  
Sea Coast

How early did steppe dwellers penetrate the forests? The authors compare and contrast settlement on the steppe, in the forest and on the steep sea coast of western Patagonia, finding that the steppe is occupied first, from 11400 calendar years BP. But around 2800 calendar years BP settlements enter the forest almost simultaneously for a brief period along the length of the Cisnes river valley. Within a few centuries the experiment appears to be abandoned, and the focus of prehistoric peoples returns to the steppe.

scholarly journals A Stepwise GIS Approach for the Delineation of River Valley Bottom within Drainage Basins Using a Cost Distance Accumulation Analysis

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 827
Author(s):  
Gasper L. Sechu ◽  
Bertel Nilsson ◽  
Bo V. Iversen ◽  
Mette B. Greve ◽  
Christen D. Børgesen ◽  
...  
Keyword(s):  
Spatial Data ◽  
Nutrient Loading ◽  
Drainage Basin ◽  
River Valley ◽  
Management Tool ◽  
Drainage Basins ◽  
Valley Bottom ◽  
Management Actions ◽  
Cost Distance ◽  
River Valleys

River valley bottoms have hydrological, geomorphological, and ecological importance and are buffers for protecting the river from upland nutrient loading coming from agriculture and other sources. They are relatively flat, low-lying areas of the terrain that are adjacent to the river and bound by increasing slopes at the transition to the uplands. These areas have under natural conditions, a groundwater table close to the soil surface. The objective of this paper is to present a stepwise GIS approach for the delineation of river valley bottom within drainage basins and use it to perform a national delineation. We developed a tool that applies a concept called cost distance accumulation with spatial data inputs consisting a river network and slope derived from a digital elevation model. We then used wetlands adjacent to rivers as a guide finding the river valley bottom boundary from the cost distance accumulation. We present results from our tool for the whole country of Denmark carrying out a validation within three selected areas. The results reveal that the tool visually performs well and delineates both confined and unconfined river valleys within the same drainage basin. We use the most common forms of wetlands (meadow and marsh) in Denmark’s river valleys known as Groundwater Dependent Ecosystems (GDE) to validate our river valley bottom delineated areas. Our delineation picks about half to two-thirds of these GDE. However, we expected this since farmers have reclaimed Denmark’s low-lying areas during the last 200 years before the first map of GDE was created. Our tool can be used as a management tool, since it can delineate an area that has been the focus of management actions to protect waterways from upland nutrient pollution.

Human occupation strategies and related environmental-climate during the middle and late Holocene in central Pampas of Argentina

The Holocene ◽  
2018 ◽  
Vol 29 (2) ◽  
pp. 244-261 ◽  
Author(s):  
Pablo G Messineo ◽  
Marcela S Tonello ◽  
Silvina Stutz ◽  
Alfonsina Tripaldi ◽  
Nahuel Scheifler ◽  
...  
Keyword(s):  
Late Holocene ◽  
Specific Activity ◽  
Climatic Conditions ◽  
Hard Material ◽  
Human Occupation ◽  
Climate Conditions ◽  
Lithic Assemblage ◽  
Depositional Rate ◽  
Archeological Site ◽  
Middle And Late Holocene

The main objective of this work is to generate and integrate interpretations of human occupation strategies and inferences of the environmental-climatic conditions in the central Pampas during the middle and late Holocene. We present a novel archeological–geological–paleoecological analysis in the area of the Cabeza de Buey lake, placed in an aeolian landscape. During the middle Holocene, two events of human occupations were recognized at Laguna Cabeza de Buey 2 archeological site. Both events present a small amount of lithic materials, a low diversity of tools and activities developed with them (principally hard material), and the hunting and primary processing of artiodactyls. These evidences suggest a locus of specific activity associated with an ephemeral human settlement under climate conditions drier than present and the presence of small, brackish, and shallow water bodies. For the late late Holocene, the hunter-gatherer occupation has a higher depositional rate of lithic assemblage, stones with diverse origins, presence of pottery fragments, a great lithic tool diversity, knapping techniques, and activities developed with these tools (processing wood, bone, hide, non-woody plant, and soft material). These evidences reveal an occupation with a higher degree of recurrence represented by a locus of multiple activities associated with a more stable landscape, such as an environment of dunes fixed by grass vegetation, and the establishment of a permanent water body. The different environmental characteristics for the middle and late Holocene in this area promoted that human groups develop two different patterns of mobility, settlement and use of space.

Palynological evidence for late-Holocene human occupation recorded in two wetlands in SW Turkey

The Holocene ◽  
2002 ◽  
Vol 12 (5) ◽  
pp. 569-584 ◽  
Author(s):  
M. Vermoere ◽  
S. Bottema ◽  
L. Vanhecke ◽  
M. Waelkens ◽  
E. Paulissen ◽  
...  
Keyword(s):  
Late Holocene ◽  
Human Occupation ◽  
Sw Turkey

scholarly journals The Hopewell airburst event, 1699-1567 years ago (252-383 CE)

2021 ◽  
Author(s):  
Kenneth Barnett Tankersley ◽  
Stephen D. Meyers ◽  
Stephanie A. Meyers ◽  
James A. Jordan ◽  
Louis Herzner ◽  
...  
Keyword(s):  
Late Holocene ◽  
River Valley ◽  
Ohio River ◽  
Ohio River Valley ◽  
Catastrophic Event ◽  
Melt Glass

Abstract Meteorites, silicious vesicular melt glass, Fe and Si-rich magnetic spherules, positive Ir and Pt 25 anomalies, and burned charcoal-rich Hopewell habitation surfaces demonstrate that a cosmic airburst event occurred over the Ohio River valley during the late Holocene. A comet-shaped earthwork was constructed near the airburst epicenter. Twenty-nine radiocarbon ages demonstrate that the event occurred between 252 and 383 CE, a time when 69 near-Earth comets were documented. While Hopewell people survived the catastrophic event, it likely contributed to their cultural decline. The Hopewell comet airburst expands our understanding of the frequency and impact of cataclysmic cosmic events on complex human societies.

Morphological variation among late holocene Mexicans: Implications for discussions about the human occupation of the Americas

2017 ◽  
Vol 163 (1) ◽  
pp. 75-84 ◽  
Author(s):  
Brianne Herrera ◽  
Daniel Peart ◽  
Nicole Hernandez ◽  
Kate Spradley ◽  
Mark Hubbe
Keyword(s):  
Morphological Variation ◽  
Late Holocene ◽  
Human Occupation

Holocene Environments in Northeast Africa

2021 ◽  
pp. 62-78
Author(s):  
Martin Williams
Keyword(s):  
Late Holocene ◽  
Flood Plain ◽  
Low Flow ◽  
Archaeological Record ◽  
Human Occupation ◽  
Complex Interactions ◽  
Maar Lake ◽  
Low Levels ◽  
White Nile ◽  
Ne Africa

This chapter provides an overview of the geography, hydrology, and climate of NE Africa, with particular reference to the complex interactions between river regime, climate, the biota, and human settlement. During the Early (11.7–8.2 ka) and Middle Holocene (8.2–4.2 ka) the climate was far less arid than today across the Nile basin, including Nubia, albeit with sporadic dry phases. Climatic desiccation set in during the Late Holocene (4.2 ka to present), with minor wet phases. Intervals when the Nile flow regime was apparently shifting from high to low flow and flood plain incision have provisional ages of ca. 8.15–7.75 ka, 6.4–6.15 ka, 5.7–5.45 ka, 4.7–4.25 ka, 3.35–2.9 ka, 2.8–2.55 ka, and 1600 ce. In the Kerma area of Nubia there were two periods of relatively dense human occupation in the earlier part of the Holocene from 10 ka to 8 ka and from 7 ka to 6 ka, with two significant gaps in the archaeological record at 7.5–7.1 ka and 6.0–5.4 ka, that coincided with very low levels in Lake Challa, a maar lake on the eastern flank of Mt Kilimanjaro, near the Ugandan headwaters of the White Nile.

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