Before the Neolithic in the Aegean: The Pleistocene and the Early Holocene record of Bozburun - Southwest Turkey

2020 ◽  
pp. 1-33
Author(s):  
Çiğdem Atakuman ◽  
Burçin Erdoğu ◽  
Hasan Can Gemici ◽  
İsmail Baykara ◽  
Murat Karakoç ◽  
...  
Keyword(s):  
Early Holocene ◽  
Holocene Record

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.

A Holocene Ice-Core Pollen Record from Ellesmere Island, Nunavut, Canada

2000 ◽  
Vol 54 (2) ◽  
pp. 275-283 ◽  
Author(s):  
Jocelyne C. Bourgeois ◽  
Roy M. Koerner ◽  
Konrad Gajewski ◽  
David A. Fisher
Keyword(s):  
Atmospheric Transport ◽  
Ice Core ◽  
Early Holocene ◽  
Pollen Deposition ◽  
Pollen Record ◽  
Tree Pollen ◽  
Eastern Canada ◽  
Ice Cap ◽  
Pollen Concentrations ◽  
Holocene Record

A Holocene record of pollen deposition was obtained from an ice core drilled through the Agassiz Ice Cap. The pollen records long-range atmospheric transport to the ice cap. Pollen concentrations were highest in the early Holocene (∼15 grains/L), decreased in the mid-Holocene (∼6 grains/L), and increased in the late Holocene (∼9 grains/L). In the early Holocene, the higher concentration of tree pollen at a time when large parts of Canada were still ice-covered, and when forest was generally farther away, implies that atmospheric circulation was stronger than at present. Following deglaciation, as vegetation migrated north in central and eastern Canada, sources of pollen were closer to the Agassiz Ice Cap. However, the concentration of tree pollen decreased on the ice cap. This was followed by several relatively rapid changes after 3500 yr ago. Until ca. 3500 yr ago, the pollen concentration curves resembled the ice core δ18O and summer melt layer curves, both regarded as temperature proxies.

Late-Glacial to Early Holocene Climate Changes from a Central Appalachian Pollen and Macrofossil Record

1999 ◽  
Vol 51 (2) ◽  
pp. 133-147 ◽  
Author(s):  
Margaret Kneller ◽  
Dorothy Peteet
Keyword(s):  
Climate Changes ◽  
Regional Climate ◽  
Late Glacial ◽  
Plant Macrofossils ◽  
Warming Trend ◽  
Early Holocene ◽  
Central Appalachians ◽  
Holocene Record ◽  
Radiocarbon Chronology ◽  
Climate Responses

AbstractA late-glacial to early Holocene record of pollen, plant macrofossils, and charcoal has been obtained from two cores from Browns Pond in the central Appalachians of Virginia. An AMS radiocarbon chronology defines the timing of moist and cold excursions, superimposed on the overall warming trend from 14,200 to 750014C yr B.P. This site had cold, moist conditions from ca. 14,200 to 12,70014C yr B.P., with warming at 12,730, 11,280, and 10,05014C yr B.P. A decrease in deciduous broad-leaved tree taxa andPinus strobus(haploxylon) pollen, simultaneous with a reexpansion ofAbies,denotes a brief, cold reversal from 12,260 to 12,20014C yr B.P. A second cold reversal, inferred from increases in montane conifers, is centered at 750014C yr B.P. The cold reversals at Browns Pond may be synchronous with climate change in Greenland and northwestern Europe. Warming at 11,28014C yr B.P. shows the complexity of regional climate responses during the Younger Dryas chronozone.

A First Look at the Terminal Pleistocene/Early Holocene Record of Guano Valley, Oregon, USA

PaleoAmerica ◽  
2018 ◽  
Vol 4 (2) ◽  
pp. 162-176 ◽  
Author(s):  
Derek J. Reaux ◽  
Geoffrey M. Smith ◽  
Kenneth D. Adams ◽  
Sophia Jamaldin ◽  
Nicole D. George ◽  
...  
Keyword(s):  
Early Holocene ◽  
Terminal Pleistocene ◽  
Holocene Record

The Ventana Complex: New Dates and New Ideas on Its Place in Early Holocene Western Prehistory

2003 ◽  
Vol 68 (2) ◽  
pp. 353-371 ◽  
Author(s):  
Bruce B. Huckell ◽  
C. Vance Haynes
Keyword(s):  
Mass Spectrometry ◽  
Great Basin ◽  
Accelerator Mass Spectrometry ◽  
Radiocarbon Dating ◽  
Stone Tools ◽  
Early Holocene ◽  
Morphological Studies ◽  
New Ideas ◽  
Holocene Record ◽  
Volcanic Debris

Radiocarbon dating of charcoal samples and a re-examination of the artifacts from the Volcanic Debris layer in Ventana Cave were conducted in 1992-1994. The goal of this research was to better understand the chronological position and cultural affinities of the Ventana Complex, the name applied to the assemblage recovered from the Volcanic Debris. Ten new Accelerator Mass Spectrometry (AMS) 14C ages suggest that the Volcanic Debris accumulated between approximately 8800 B.P. and 10,500 B.P., and the lack of stratigraphic ordering of the dates indicates that the Volcanic Debris was subjected to considerable turbation as it accumulated. This turbation may have led to the incorporation of bones of extinct fauna from an underlying conglomerate deposit rich in horse remains, creating the impression of their association with artifacts. The artifacts are probably the product of episodic, special-purpose occupations spanning centuries or millennia. Technological and morphological studies of the stone tools indicate few similarities with classic Paleoindian industries, and greater similarities to early Holocene Archaic occupations in the Great Basin and Southwest. Correlations of the Ventana Cave stratigraphy with that of southeastern Arizona and with the late Pleistocene and Holocene record of Northern Hemisphere climate are explored.

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