995 resultados para Gentiana Sect Stenogyne


Relevância:

10.00% 10.00%

Publicador:

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A multi-proxy palaeoecological investigation including pollen, plant macrofossil, radiocarbon and sedimentological analyses, was performed on a small mountain lake in the Eastern Pyrenees. This has allowed the reconstruction of: (1) the vegetation history of the area based on five pollen diagrams and eight AMS14C dates and (2) the past lake-level changes, based on plant macrofossil, lithological and pollen analysis of two stratigraphical transects correlated by pollen analysis. The palaeolake may have appeared before the Younger Dryas; the lake-level was low and the vegetation dominated by cold steppic grasslands. The lake-level rose to its highest level during the Holocene in the Middle Atlantic (at ca. 5060±45 b.p.). Postglacial forests (Quercetum mixtum and Abieto-Fagetum) developed progressively in the lower part of the valley, while dense Pinus uncinata forests rapidly invaded the surroundings of the mire and remained the dominant local vegetation until present. The observed lowering of the lake levels during the Late Atlantic and the Subboreal (from 5060 ± B.P. to 3590±40 b.p.) was related to the overgrowth of the mire. The first obvious indications of anthropogenic disturbances of the vegetation are recorded at the Atlantic/Subboreal boundary as a reduction in the forest component, which has accelerated during the last two millennia.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Non-glaciated Arctic lowlands in north-east Siberia were subjected to extensive landscape and environmental changes during the Late Quaternary. Coastal cliffs along the Arctic shelf seas expose terrestrial archives containing numerous palaeoenvironmental indicators (e.g., pollen, plant macro-fossils and mammal fossils) preserved in the permafrost. The presented sedimentological (grain size, magnetic susceptibility and biogeochemical parameters), cryolithological, geochronological (radiocarbon, accelerator mass spectrometry and infrared-stimulated luminescence), heavy mineral and palaeoecological records from Cape Mamontov Klyk record the environmental dynamics of an Arctic shelf lowland east of the Taymyr Peninsula, and thus, near the eastern edge of the Eurasian ice sheet, over the last 60 Ky. This region is also considered to be the westernmost part of Beringia, the non-glaciated landmass that lay between the Eurasian and the Laurentian ice caps during the Late Pleistocene. Several units and subunits of sand deposits, peat-sand alternations, ice-rich palaeocryosol sequences (Ice Complex) and peaty fillings of thermokarst depressions and valleys were presented. The recorded proxy data sets reflect cold stadial climate conditions between 60 and 50 Kya, moderate inderstadial conditions between 50 and 25 Kya and cold stadial conditions from 25 to 15 Kya. The Late Pleistocene to Holocene transition, including the Allerød warm period, the early to middle Holocene thermal optimum and the late Holocene cooling, are also recorded. Three phases of landscape dynamic (fluvial/alluvial, irregular slope run-off and thermokarst) were presented in a schematic model, and were subsequently correlated with the supraregional environmental history between the Early Weichselian and the Holocene.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Late Pleistocene and Holocene sediment core from the nowadays terrestrialised portion of the Löddigsee in Southern Mecklenburg, Germany was palynologically investigated. The lake is situated in the rarely investigated Young moraine area at the transition from the Weichselian to the Saalian glaciation. The high-resolution pollen diagram contributes to the establishment of the north-eastern German Late Pleistocene pollen stratigraphy. The vegetation distribution pattern after the end of the Weichselian is in good agreement with other studies from North-eastern Germany, but also has its own characteristics. The Holocene vegetation development reveals features from the north-eastern and north-western German lowlands. A special focus was laid on the environmental history of the two settlements on an island within the lake (Late Neolithic and Younger Slavic period), which were preserved under moist conditions. Both settlements were constructed during a period of low lake level. Although there is evidence of agriculture in the area during the respective periods, the two island settlements seem to have served other purposes.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Sect. A. Southern Syria.--Sect. B. Northern Syria.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Autographed from type-written copy.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Facsimile of the Codex Puteanus (now Ms. lat. 5730 in the Bibliothèque nationale, Paris) containing the third decade, or book XXI (chap. 20 [sect. 8-chap. 21] [sect. 13; chap. 29] [sect. 6-chap. 30] [sect. 11; chap. 41] [sect. 13 to end (chap. 63)); books XXII-XXIX; book XXX (chap. 1-30 [sect. 14; chap. 37] [sect. 3-chap. 38] [sect. 3])

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Includes: Eishōin Nichikan Shōnin ryakuden at end.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Section 4, Statistical data, was published as a separate volume.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

San-tsi-king: the three-character classic; on the utility and honour of learning.--Ta-hio; the great science.--Account of Foe, the deified founder of a Chinese sect.--Extract from the Ho-kiang.--Account of the sect. Tao-szu.--Dissuasive from feeding on beef.--Specimens of Chinese epistolary correspondence.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Series note wanting, vol.2, pt.3-4.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Sect. I - Carmina cum annotatione critica. Adiectae sunt tabulae duae geographicae delineatae a Car. Odofr. Muellero.-- Sect. II. - Commentarius Adiectae sunt tabulaeduae geographicae delineatae a Car. Odofr. Muellero.