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Records of the Late Glacial-Holocene palaeoenvironmental changes in landslide forms and deposits of the Beskid Makowski and Beskid Wyspowy Mts. area (Polish Outer Carpathians)

Margielewski W.

Folia Quaternaria

2006

nr 76

149-149

In the Beskid Makowski and Beskid Wyspowy Mts., Polish Outer Carpathians, 23 peat-bogs of different ages, situated in landslide depressions (fen mountainous peat-bogs) were studied and dated. Mineral horizons, illuvial horizons and mineral covers were invesligated in the sediments of these peat-bogs. Deposition of mineral sediments was connected with the humid climatic phases in the Late Glacial and Holocene, during which delivery of allochthonous material to peat-bog basins took place. Climate changes are recorded in differing ways within the sediments, which were conditioned by the specificity of the depositional environment of particular peat-bog basins, which react differently to climatic changes and human impact. Detailed and complex investigations of peat-bog profiles were conducted including lithological descriptions (loss on ignition, grain size and peat analyses) and numerous radiocarbon datings, using samples mainly from the horizons of the lithological changes (as diagnostic). Complete palynological profiles were made for eight sections. These investigations have documented that the deliveries of mineral material to the peat-bog basins took place mainly during the humid climate phases in the Bolling and Allerod Interstadials, at the beginning of the Holocene (YD/PB) and the boundary of the PB/BO, at the boundary of the BO/AT phases and the beginning of the Atlantic Phase, at the end of the Atlantic Phase and at the beginning of the Subboreal Phase (ca 5.5-4.8 and ca 4.5-4.1 ka BP), in the Subboreal Phase ca 3.5-3.0 ka BP, at the beginning of the Subatlantic Phase (ca 2.4 -1.8 ka BP), in the 5-7th centuries, in the 10-11th centuries, and during the Little Ice Age. The recorded humid phases are correlated with phases of fluvial activity of the Upper Vistula River as well as with phases of climate moistening observed in various sediments' facies of Europe. The use of probability density function for statistical analysis of distribution of the radiocarbon dates of the landslides in the Carpathians (66 dates) and mineral horizons in the studied peat-bogs (93 selected, representative datings) makes possible the determination (in the BC/AD age) of the phases of intensification of slope processes, which took place: 14,600-14,400 BC; 11,500-11,100 BC; 10,100-9,700 BC; 9,200-8,600 BC; 7,700-7,200 BC; 6,400-5,600 BC; 5,000-4,400 BC; 3,900-3,400 BC; 2,800-2,600 BC; 2,200-2,000 BC; 1,700-1,300 BC; 800 BC-AD 0; AD 600-1,000; AD 1,200-1,400; and AD 1,600-1,800.

Transport rumowiska wleczonego i skład jakościowy osadów dennych Potoku Jałowieckiego w Beskidzie Makowskim (Karpaty polskie)

Radecki-Pawlik A., Florencka N.

Inżynieria Środowiska / Akademia Górniczo-Hutnicza im. S. Staszica w Krakowie

2001

T. 6, z. 2

385-397

W pracy przedstawiono wyniki badań chemicznych rumowiska dennego zgromadzonego w łachach korytowych potoku górskiego płynącego przez zlewnię położoną na obszarze wiejskim pod kątem ewentualnej akumulacji metali ciężkich w występujących w korycie potoku utworach aluwialnych. Stwierdzono, że największa ilość akumulowanych pierwiastków chemicznych odkłada się w rumowisku najdrobniejszym, w miejscach ocienionych naturalnymi wychodniami skalnymi, gdzie wymiana materiału następuje wyłącznie podczas przepływów ponadkorytowych i jest to Pb oraz Cd. Dodatkowo wykonano obliczenia transportu rumowiska wleczonego metodą Parkera oraz unoszonego metodą DRUSLE.

The paper presents the field research of heavy metals accumulation in point bars and sediments. The research was undertaken in Jałowiecki mountain stream - Polish Carpathian mountainous region. It was found that in some tiny sediments situated within shadow of mega-clusters or rocks there is a tendency to accumulate heavy metals, especially Pb and Cd. Additionally bed load transport was calculated using Parker method and suspended load using DR-Usle concept.