Late Holocene evolution of a Mediterranean incised river flowing to the Atlantic: Sedimentary dynamics, fluvial activity and paleoenvironmental reconstruction (SW Iberia)

AbstractCores retrieved from two slump blocks at the west end of Elkwater Lake, Alberta were used to determine which of two mass wasting events was responsible for impounding the lake and to establish a maximum age of lake formation. A high resolution Digital Elevation Model of the study area was used to estimate the volume of material involved in each mass wasting event, recreate pre-slump topographic conditions, determine the probable extent and elevation of the lake at different periods in time, and evaluate the viability of alternative outlets. Results suggest that the lake formed no more than 9440 BP as a result of impoundment by the eastern slump block. The lake rose to its highest mid-Holocene elevation prior to 7245 BP, establishing an outlet through Feleski Creek 3.5 km northeast of the present shoreline. Lake levels then dropped during the comparatively dry Altithermal, concurrent with a period of rapid sediment influx and the development of the alluvial fan on which the Stampede site is located. As water levels rose during the late Holocene, and with the former outlet cut off by progradation of the alluvial fan, Elkwater Lake established its present outlet though Ross Creek.

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Paleozoogeography of the Wine Mouse (Akodon oenos) & Late Holocene Paleoenvironments in South-Central Mendoza, Argentina

Ethnobiology Letters ◽

10.14237/ebl.1.2010.62 ◽

2011 ◽

Vol 1 ◽

pp. 52-57 ◽

Cited By ~ 4

Author(s):

Fernando Julián Fernández

Keyword(s):

Late Holocene ◽

Taxonomic Status ◽

Archaeological Site ◽

Winter Precipitation ◽

Climatic Conditions ◽

Small Rodent ◽

Paleoenvironmental Reconstruction ◽

Human Occupation ◽

Monte Desert ◽

South Central

Cranial remains of the wine mouse (Akodon oenos) are documented from an archaeological site in south-central Mendoza, Argentina (Agua de La Mula, 35º22' S, 68º15' W), which dates to the end of the late Holocene (1610 ± 60; 1260 ± 60; 1000 ± 50 C14 yr B.P.). The taxonomic status of this small rodent is currently being assessed, but these remains represent the first fossil record for the morphotaxon A. oenos. The species’ present distribution is restricted to a few records from Mendoza province. Analysis of the remains supports paleoenvironmental reconstruction using the small mammal assemblage recovered from this site. From the late Holocene into modernity temperature decreased and winter precipitation increased, resulting in advance of Patagonian steppe grading with altitude into Monte desert. Holocene climatic conditions may explain the relatively late human occupation of ecologically marginal environments in this region, which probably favored effective human occupation of the Payunia region at sites such as Agua de La Mula between 1600 and 1000 years B.P.

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The Geomorphic Characteristics and Late-Holocene Paleoenvironmental Reconstruction in Sejong-Si Based on the Pollen Analysis of the Right Bank of Geumgang

JOURNAL OF THE KOREAN GEOMORPHOLOGICAL ASSOCIATION ◽

10.16968/jkga.24.4.1 ◽

2017 ◽

Vol 24 (4) ◽

pp. 1-12 ◽

Cited By ~ 1

Author(s):

Youngrong Moon ◽

Soon-Ock Yoon ◽

Sangill Hwang

Keyword(s):

Pollen Analysis ◽

Late Holocene ◽

Paleoenvironmental Reconstruction ◽

The Right

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Late Holocene malacofauna-based paleoenvironmental reconstruction for the Bazaikha River and Tartat River valleys (Krasnoyark Depression, Central Siberia)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/438/1/012015 ◽

2020 ◽

Vol 438 ◽

pp. 012015

Author(s):

D E Makarchuk ◽

G Yu Yamskikh ◽

N V Lebedeva ◽

V O Brungardt ◽

V V Bochka

Keyword(s):

Late Holocene ◽

Paleoenvironmental Reconstruction ◽

Central Siberia ◽

River Valleys

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A late Holocene paleoenvironmental reconstruction from Agua Caliente, southern Belize, linked to regional climate variability and cultural change at the Maya polity of Uxbenká

Quaternary Research ◽

10.1016/j.yqres.2014.01.013 ◽

2014 ◽

Vol 82 (1) ◽

pp. 38-50 ◽

Cited By ~ 12

Author(s):

Megan K. Walsh ◽

Keith M. Prufer ◽

Brendan J. Culleton ◽

Douglas J. Kennett

Keyword(s):

Land Use ◽

Cultural Change ◽

Late Holocene ◽

Regional Climate ◽

Paleoenvironmental Reconstruction ◽

Human Land Use ◽

Terminal Classic ◽

Climate Interactions ◽

Initial Clearance ◽

Maya Collapse

AbstractWe report high-resolution macroscopic charcoal, pollen and sedimentological data for Agua Caliente, a freshwater lagoon located in southern Belize, and infer a late Holocene record of human land-use/climate interactions for the nearby prehistoric Maya center of Uxbenká. Land-use activities spanning the initial clearance of forests for agriculture through the drought-linked Maya collapse and continuing into the historic recolonization of the region are all reflected in the record. Human land alteration in association with swidden agriculture is evident early in the record during the Middle Preclassic starting ca. 2600 cal yr BP. Fire slowly tapered off during the Late and Terminal Classic, consistent with the gradual political demise and depopulation of the Uxbenká polity sometime between ca. 1150 and 950 cal yr BP, during a period of multiple droughts evident in a nearby speleothem record. Fire activity was at its lowest during the Maya Postclassic ca. 950–430 cal yr BP, but rose consistent with increasing recolonization of the region between ca. 430 cal yr BP and present. These data suggest that this environmental record provides both a proxy for 2800 years of cultural change, including colonization, growth, decline, and reorganization of regional populations, and an independent confirmation of recent paleoclimate reconstructions from the same region.

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