Pollen Analysis and Radiocarbon Dating of a Core from Loch Pityoulish, Eastern Highlands of Scotland

1976 ◽  
Vol 3 (3) ◽  
pp. 293 ◽  
Author(s):  
P. E. O'Sullivan
Keyword(s):  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
Eastern Highlands

scholarly journals Upper Holocene development of vegetation and radiocarbon dating in the vicinity of the Cerhovka Brook (Bohemian-Moravian Uplands, Czech Republic)

2012 ◽  
Vol 39 (4) ◽  
pp. 252-261 ◽  
Author(s):  
Eva Břízová ◽  
Anna Pazdur ◽  
Natalia Piotrowska
Keyword(s):  
Czech Republic ◽  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
Deciduous Forests ◽  
Peat Bog ◽  
The Holocene ◽  
Lime Tree ◽  
Stratigraphic Position ◽  
Palynological Study ◽  
Pollen Analyses

Abstract The paper reports the results of a palynological study of a newly exposed section in the peat sediments of Bezděkov site and its correlation with the previous palaeobotanical studies. The main goal was to elucidate the stratigraphic position and paleogeographic development of fossil peat bog and its environment in the Protected Landscape Area Žďárské vrchy and Železné hory in the Bohemian-Moravian Uplands. The development of peatbog vegetation, as shown by the pollen analysis and radiocarbon dating, took place in the Holocene. Pollen analyses provide evidence for occurrences of wetland assemblages with huge representation of alder wood in all the part of succession, followed by willow near the Cerhovka Brook. Alnus and Abies were the dominant trees during all the time. The deciduous forests consist of elm (Ulmus), oak (Quercus), lime tree (Tilia), maple (Acer) and hazel (Corylus). The mosaic picture of woodland and wetland, which covered this landscape during the Upper Holocene, contrasts with the present day monotonous open lowland. Sediments of the peat bog provide information on the origin and vegetation evolution of this area.

Radiocarbon Dating Lists and Their Use

1956 ◽  
Vol 21 (3) ◽  
pp. 312-313 ◽  
Author(s):  
Frederick Johnson
Keyword(s):  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
American Antiquity ◽  
Radiocarbon Dates ◽  
Recent Treatment ◽  
Physical Literature

“The Denbigh Flint Complex is Not Yet Dated,” (American Antiquity, Vol. 20, No. 4, pp. 375-6) by J. L. Giddings raises a number of general questions concerning the collection of samples and the listings and use of radiocarbon dates which are not confined to the Denbigh material. Giddings says he is a “little worried about our use of ‘lists’ of radiocarbon dates in view of the recent treatment of some dates from Cape Denbigh.” The publication of lists of dates has proved to be of considerable value to anyone who is interested in chronological problems. Primarily the lists facilitate reference. If the more than 2000 determinations were scattered in archaeological, geological, botanical, palaeobotanical and physical literature, it would be practically impossible to find them. For example, an archaeologist might never learn that a date on a level correlative with the Mesolithic but identified by pollen analysis had ever been determined.

scholarly journals AMS Radiocarbon Dating and Pollen Analysis of Core Ks0412-3 from Kashibaru Marsh in Northern Kyushu, Southwest Japan

Radiocarbon ◽  
2013 ◽  
Vol 55 (3) ◽  
pp. 1693-1701 ◽  
Author(s):  
Toshiyuki Fujiki ◽  
Mitsuru Okuno ◽  
Toshio Nakamura ◽  
Shinji Nagaoka ◽  
Yuichi Mori ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
Sediment Accumulation ◽  
Sand Layer ◽  
Natural Marsh ◽  
Southwest Japan ◽  
Marsh Sediment ◽  
Ams Radiocarbon Dating ◽  
Average Sedimentation Rate

We performed pollen analysis and accelerator mass spectrometry (AMS) radiocarbon dating on cored sediments (KS0412-3) from Kashibaru Marsh, located in the western part of the Sefuri Mountains in northern Kyushu, southwestern Japan, to investigate environmental change around the marsh. Sediment accumulation began in this marsh around cal AD 1200 and continued with an estimated average sedimentation rate of about 4 mm/yr. Human rice cultivation at this location began around cal AD 1300 and was abandoned due to the deposition of a thick sand layer at around cal AD 1400. Since this event, the area has been maintained as a “natural” marsh.

Holocene vegetation and climate changes inferred from pollen record of Nordenskiöld Land (West Spitsbergen Island)

2020 ◽  
Author(s):  
Diana Soloveva ◽  
Larisa Savelieva ◽  
Sergei Verkulich
Keyword(s):  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
River Valley ◽  
The Arctic ◽  
Published Data ◽  
Pollen Record ◽  
Spores And Pollen ◽  
Svalbard Archipelago ◽  
West Spitsbergen ◽  
Vegetation And Climate

<p>Pollen analysis is one of the methods that allow revealing ecological and climatic changes in the<br>past based on vegetation reconstruction. Spitsbergen (Svalbard) archipelago, as well as other<br>regions of the Arctic, is difficult for creation of regional models of vegetation and climate<br>development during the Holocene. This is primarily due to the limited distribution, low thickness<br>and relative young ages (usually this is the late Holocene) of organogenic deposits, which are<br>most suitable for palynological studies.<br>Nordenskiöld Land is located in the central part of the West Spitsbergen Island and different the<br>most favorable climatic conditions. The largest number of sites suitable for paleobotanical<br>researches is located here. The Coles valley has length about 12 km, well-developed profile and<br>situated on the north shore of Nordenskiöld Land. The field campaign with studying of<br>floodplain peat sediments from Coles River valley was carried out in August 2018. Two sites<br>(K18-15, K18-16) were studied on the remains of first terrace. Excavated deposits are<br>represented by leafy peat of varying degrees of decomposition with silt lenses. The laboratory<br>studies of sediments included radiocarbon dating, pollen and non-pollen palynomorph analyses.<br>They were carried out in Laboratory of St-Petersburg State University and Russian chemical-<br>analytical Lab on the Spitsbergen archipelago.<br>The pollen analysis of two sections from Coles River valley allowed us to reconstruct<br>paleovegetation changes. Samples from K18-15 site contain more mineral components and more<br>pollen and spores than samples from K18-16 site. This is probably due to the inflow of pollen<br>with water. The main components of spore-pollen spectra are Poaceae, Cyperaceae, Salix and<br>Betula sect. Nanae. The relationship between these taxa shows a different degree of moisture of<br>the study area under the dominance of the grass - sedge tundra. Thus, a significant influence on<br>the formation of spores and pollen spectra in the studied deposits is played by the dynamics of<br>the sedimentation.<br>Results of radiocarbon dating showed that studied deposits formed during mid and late<br>Holocene.<br>A generalization of all available palynological data on the Nordenskjöld land made it possible to<br>construct a scheme of dwarf birch (Betula sect. Nanae) distribution during the Middle and Late<br>Holocene. A comparison of received data with our previous data and published data from<br>Nordenskiöld Land shows the asynchronous of appear and distribution of shrubs on these area<br>from ~5000 to ~2500 yrs ago.</p>

Studies in the vegetational history of Scotland IV. Pine stumps in Scottish blanket peats

1975 ◽  
Vol 270 (905) ◽  
pp. 181-226 ◽  
Keyword(s):  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
Upland Forest ◽  
Pollen Diagrams ◽  
Blanket Peat ◽  
History Of ◽  
Peat Stratigraphy

The palaeoecology of six Scottish blanket peat profiles containing pine stumps was investigated by means of peat stratigraphy, pollen analysis, and radiocarbon dating. In addition, several other pine and birch remains from peat in other areas of Scotland were radiocarbon dated. Three peat profiles were selected in each of two contrasting regions. The Cairngorm area is within the distributional area of native pine today and pollen analysis has shown that pine has been a major component of the upland forest since about 7000 b.p. The Galloway region in southwest Scotland is south of the native pine area, and pollen analysis has shown that pine has never been a major component of the upland forest. Despite the limitations of the methods used, it has been established that there were several different circumstances for the growth and death of the pines studied, and that their ages are asynchronous within and between the two areas. Thus little regional climatic significance can be assumed from their occurrence, and they cannot be taken as evidence in support of dry Boreal and sub-Boreal periods in the Blytt and Sernander climatic scheme. In the northwest Highlands dates from pine stumps and major declines of pollen in pollen diagrams are consistently around 4000 b.p. This overall demise of pine may have a regional climatic cause in this area.

A Chronology of Upper Willamette Valley, Oregon, Prehistory

1979 ◽  
Vol 44 (3) ◽  
pp. 556-568
Author(s):  
John R. White
Keyword(s):  
Tree Ring ◽  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
Willamette Valley ◽  
Historic Period ◽  
Relative Dating ◽  
Cross Dating

On the basis of an analysis of data from 34 of the most thoroughly examined sites in the Upper Willamette Valley of Oregon, a chronological framework is devised that divides the prehistory of the region into five major periods: Period I, ranging between 8000 and 6000 B.C.; Period II, between 6000 and 4000 B.C.; Period III, between 4000 and 250 B.C.; Period IV, 250 B.C. to A.D. 1700; and Period V, the protohistoric and historic period dating between 1700 and approximately 1850. The bracketing dates for these periods are based on a combination of chronometric and relative dating techniques, including radiocarbon dating, tree-ring counts, typological comparison, pollen analysis, cross-dating with historic artifacts, and stratigraphy.

scholarly journals Too Old AMS Radiocarbon Dates Obtained from Moss Remains from Lake Kwiecko Bottom Sediments (N Poland)

2008 ◽  
Vol 32 (-1) ◽  
pp. 13-19 ◽  
Author(s):  
Jacek Madeja ◽  
Dariusz Latowski
Keyword(s):  
Bottom Sediments ◽  
Pollen Analysis ◽  
Radiocarbon Dating ◽  
Radiocarbon Dates ◽  
Ams Radiocarbon Dating ◽  
Palynological Data

Too Old AMS Radiocarbon Dates Obtained from Moss Remains from Lake Kwiecko Bottom Sediments (N Poland)The paper presents the results of the AMS radiocarbon dating of moss macrofossils which seem to be too old in the context of palynological data. The lack of agreement between the obtained results of radiocarbon dating and pollen analysis has been discussed. Some possible causes of the discrepancies between the results of radiocarbon dating and palynological dating have been given.

Sign in / Sign up

Export Citation Format

Share Document