Maria Baumgart-Kotarba
Articles
Geographia Polonica (2003) vol. 76, iss. 2, pp. 65-87 | 
Full text
Abstract
The age of recent glacial, glacifluvial/fluvial forms is determined using lichenometric dating in two Alpine valleys of the Massif des Ecrins in France. A lichen growth-curve is based on data from natural sites, such as boulder-fields, moraine ridges etc. of known age on recently deglaciated terrain. The maximum extent of the glacial system of the Veneon and Etangons valleys during the Little Ice Age was 15 km in length. The maximum lichen diameter of 90-95 mm characterizes the stage of recession correlated with AD. 1650-1660. Analysis of the systems of terraces and paleochannels of the progla-cial rivers supported by lichenometric dating allows three periods of intensified fluvial activity to be distinguished for the Little Ice Age.
Keywords: deglaciation landforms, lichenometry, Little Ice Age, Massif des Ecrins, France
, Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland
, Université de Lyon 2, Faculté GHHAT, 5, av. Pierre Mendes, 69676 Bron, France
, Institut de Géographie Alpine, 14 bis av. Marie-Reynoard, 38100 Grenoble, France
, Institut de Géographie, Université Paris I-Sorbonne, 191, rue Saint-Jacques, 75005 Paris, CNRS Laboratoire de Géographie Physique 1, pl. A.Briand 92195, Meudon Cedex, France
[kedzia@zg.pan.krakow.pl], Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland
[kotarba@zg.pan.krakow.pl], Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland
[pierre.pech@univ-paris1.f], Institut de Géographie, Université Paris I-Sorbonne, 191, rue Saint-Jacques, 75005 Paris, CNRS Laboratoire de Géographie Physique 1, pl. A.Briand 92195, Meudon Cedex, France
[raczk@zg.pan.krakow.pl], Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland
Geographia Polonica (1984) vol. 49, pp. 171-183 | Full text
, Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland
Planation surfaces in the light of the 1 : 300,000 geomorphological map of Poland
Geographia Polonica (1976) vol. 33 1, pp. 5-23 | Full text
Abstract
Planationsurfaces, being included into the contents of the 1:300,000 Geo-morphological Map of Poland, are surfaces of subaerial destruction which resulted from the joint action of various factors in pre-Pleistocene sensu stricto times. These surfaces cut across rocks of different resistance and vari-ous structures forming the Sudetes Mts., together with the Sudetes Foreland, the Central Polish Uplands and the Carpathians. North of lat. 51°N the down-warped Central Polish Uplands merge gradually beneath the unbroken cover of glacial and glacio-fluvial deposits. In the Polish Lowland, therefore, old sur-faces are now buried by Miocene, Pliocene and Pleistocene deposits (S. Biernat 1968; E. Ciuk 1961; F. Różycki 1956). Beyond the limit of the last Scandinavian glaciation, young destruction surfaces of exogenic origin also developed on the older glacial and glacio-fluvial deposits (J. Dylik 1953; K. Rotnicki 1966). A discussion of the fossil planation surfaces and Pleistocene surfaces of destruc-tion, however, falls outside the scope of this paper. Its aim is to show the regional differentiation in the development and state of preservation of the pre-Pleistocene planation surfaces in southern Poland in relation to morpho-structure, its general neotectonic tendencies and trends of evolution.Regional analysis is based upon the 1:300,000 Geomorphological Map of Poland which was prepared in the Cracow Branch of the Institute of Geo-graphy, Polish Academy of Siencies, during the period 1966 to 1973, acting in cooperation with specialists in regional geomorphology from Wrocław, Poznań, Warszawa, Lublin, Toruń and Gdańsk. The regional maps described in this paper were prepared by H. Piasecki (the Sudetes Mts. and Sudetes Foreland), S. Gilewska (the Uplands of Silesia and Małopolska), H. Maruszczak (the Lub-lin-Volhynian Upland), K. Klimek and L. Starkel (sub-Carpathian Basins) and L. Starkel (the Carpathians).
, Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland
, Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland
[starkel@zg.pan.krakow.pl], Institute of Geography and Spatial Organization Polish Academy of Sciences, Św. Jana 22, 31-018 Kraków, Poland