3 edition of late-glacial and early post-glacial pollen stratigraphy of southern and eastern Finland. found in the catalog.
late-glacial and early post-glacial pollen stratigraphy of southern and eastern Finland.
J. J. Donner
Written in English
Bibliography: p. -24.
|Series||Societas Scientiarum Fennica. Commentationes biologicae,, v. 29, nr. 9|
|LC Classifications||Q60 .F553 vol. 29, nr.9|
|The Physical Object|
|Number of Pages||24|
|LC Control Number||a 68000227|
Pollen analysis of a cm core from Mono Lake, Mono County, California indicates generally high lake lev 14 C yr B.P., moderate lake levels until ca. 14 C yr B.P., and fluctuating levels to the present. Drying events, with lake levels near or below the historic minimum are dated ca. , , , and 14C yr B.P. Chronologic control is provided by six. pollen studies from Iowa have shown high percentages of Pinus and Abies pollen at times when these pollen types were pre sent in low percentages elsewhere in the region. For example, Durkee () reported greater than 30% Pinus pollen in the late-glacial at .
The changing character of vegetation and the effects of disturbance on vegetation are inferred from pollen, plant macrofossils, charcoal, and microlepidopteran larvel head capsules in sediment cores from Upper South Branch Pond, Maine. information on the post-glacial vegetational history, it has not been possible to determine the effects of climate, geography, and human activity on the immigration of trees into south-western Ireland or on the decline of forest in the late Holocene. The put pose of this paper is to describe a c. 13,year pollen record and associated.
Aim Concepts about patterns and rates of post‐glacial tree population migration are changing as a result of the increasing amount of palaeobotanical information being provided by macroscopic plant remains. Here we combine macrofossil, pollen and stomata records from five sites in north‐eastern European Russia and summarize the results for the late‐glacial–early Holocene . Spruce appears, although afterwards completely absent from the late glacial and early postglacial stages in the same vicinity. [[p. 41]] In addition to these more comprehensive recent studies there is a considerable number having to do with isolated and fragmentary profiles, correlated with .
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Serge Occhietti, É. Govare, in Developments in Quaternary Sciences, The Major Northward Appalachian Ice-Flow Reversal. A Late-glacial reversal in ice flow is well documented by striations and rat-tails in the eastern part of the southern Appalachians of Québec (Lamarche,; Lortie and Martineau, ; Rappol, ).This reversal was a powerful event as it caused a.
The late-glacial (Fig. 6) The late-glacial—post-glacial boundary has been placed at cm where the herb pollen frequency begins to drop.
There is also a change in stratigraphy at this level, a POST-GLACIAL AQUATIC & SPORE VALUES (as percentages of tree pollen) CRANBERRY BOG 40 80 10 40 25 10 79 25 TYPHA-SPARGANIUMCited by: Samples from mainly lake sediments near the moraine were studied, and the pollen diagrams from them show the general vegetational history of the Late-glacial and Post-glacial periods.
The same zones as in other parts of the British Isles are used in the by: The Sunwapta Pass area contains environmental records extending back to the late glacial/early Holocene. Early Postglacial pollen stratigraphy of southern and eastern Finland (Post-glacial.
Results Both full‐ and late‐glacial pollen spectra from the valleys of the Western Carpathians (altitudes – m) are similar to modern pollen spectra from southern Siberian taiga, hemiboreal forest and dwarf‐birch tundra. The full‐glacial and early late‐glacial pollen spectra from lowland river valleys in the Bohemian Massif Cited by: Results from detailed pollen and 18 O/ 16 O studies on two sediment profiles from small Swiss lakes are reported.
18 O/ 16 O records in lacustrine carbonate contain paleoclimatic information because they reflect mainly the isotope ratio in rain and snow which is correlated to temperature.
Several transitions between different climatic periods determined palyno‐logically are also indicated by. Associated palaeo- environmental data are even more scarce and are limited to diatom and/or stratigraphic evidence from short post-glacial profiles (Cullingford et al.,; Smith et al., ) and, exceptionally, a multi-profile pollen, chemical, stratigraphic and dating study of Black Loch in northern Fife (Whittington et al., a).
Daniel Simonis, Andreas Hense, Thomas Litt, Reconstruction of late Glacial and Early Holocene near surface temperature anomalies in Europe and their statistical interpretation, Quaternary International, /,(), ().
Raymond Basin and Bald Knob Basin, Montgomery County, Illinois, formed as kettles during Illinoian time. Fossil pollen from these basins provides information on vegetation and climate during the last glacial-interglacial cycle. The pollen profile at Raymond Basin contains an expanded Sangamonian section and an early Wisconsinan section, but both are missing the late Wisconsinan.
A late-glacial pollen diagram from southern Michigan. Danm. Geol. Undersøg. Ser. II., nr – Problems of the early post-glacial forest development in Denmark. Danm. Geol. Undersøg. Recurrence surfaces and pollen stratigraphy of a post-glacial raised bog. In his classic work on the late-glacial flora of Denmark, Iversen 5 proposed that aquatic plants may provide a more accurate temporal record of the late-glacial and early post-glacial climate.
GRAXA PALYKOLOGICAA LATE-GLACIAL POLLEN PROFILE FROM LISTA, SOUTH NORWAY BY ULF HAFSTEK Organogenic deposits of Late-Glacial age have been found very rarely in Norway.
Jmen, on tlic soutlr-west coast, is so far tlie only area where complete profiles from the Late-Glacial period proper haw licexi found (Frcgri).
The Late-Glacial profile to bc. Leili Saarse's 71 research works with 2, citations reads, including: Late glacial and early Holocene climate and environmental changes in the eastern Baltic area inferred from. The charcoal and pollen stratigraphy of an annually laminated sediment of a small lake in eastern Finland (63°N, 30°E) was examined, and found to cover a period of years.
The region around the lake is remote and nowadays almost unpopulated. The Late Glacial Interstadial (LGI) c, to c, BP represents the first pronounced warming since the end of the Last Glacial Maximum (LGM). Human populations, which had previously forced into refuge areas, gradually begin to repopulate the Northern Hemisphere's Eurasian landmass and eventually populate North America via Beringia for the first time.
Weichselian glaciation refers to the last glacial period and its associated glaciation in northern parts of the Alpine region it corresponds to the Würm was characterized by a large ice sheet (the Fenno-Scandian ice sheet) that spread out from the Scandinavian Mountains and extended as far as the east coast of Schleswig-Holstein, the March of Brandenburg and Northwest.
Seven pollen sequences, each continuous and extending back at le years, are used to reconstruct the history of postglacial vegetation and climate in Southern Tasmania (42°S–43°30′S).
Interpretations are supported by a study of the modern pollen rain. Basil A. Davis, Pamela M. Collins, Jed O. Kaplan, The age and post-glacial development of the modern European vegetation: a plant functional approach based on pollen data, Vegetation History and Archaeobotany, /s, 24, 2, (), ().
MAMAKOWA K. Late Middle Polish Glaciation Eemian and Early Vistulian vegetation at Imbramowice near Wrocław and the pollen stratigraphy of his part of the Pleistocene in Poland.
Acta Palaeobot. 29(1): MANIKOWSKA B. Gleby młodszego plejstocenu w okolicach Łodzi (résumé: Les sols du Pleistocene superieur aux environs de. Two radiocarbon dates from the lower organic layer, 12, BC ± BC ± (Q ), and descriptions of stratigraphy, pollen analysis, diatoms and Cladoceran remains in the late.
The zoning of the Post‐glacial pollen diagrams in Finland and the main changes in the forest composition. Donner, Donner The Late‐glacial and early Postglacial pollen stratigraphy of southern and eastern Finland.Pollen stratigraphy of >13, ka bog sediments begins early in the spruce (A) pollen zone with evidence of a cold, late-glacial climate.
The more» pine (B) pollen zone, beginning prior to 11, ka, and the oak (C) pollen zone, dating from about 9, ka .A pollen diagram from Alinlampi, a little tarn immediately on the proximal side of the Rugozero (Rukajärvi) marginal moraine, was published in the guide book of the Field Confer-ence on eastern Fennoscandian Younger Dryas end moraines (Ekman et al.
). It gives a detailed picture of the local pollen .