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    Wyświetlanie 1-6 z 6
    Tytuł:
    Paleoclimatological and geoarchaeological significance of the holocene loess – soil successions of the tien shan foothills of Uzbekistan
    Autorzy:
    Welc, Fabian
    Suska-Malawska, Małgorzata
    Toychiew, Khodjiakbar
    Marks, Leszek
    Mętrak, Monika
    Powiązania:
    https://bibliotekanauki.pl/articles/2025613.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Holocene climate change
    geoarchaeology
    Uzbekistan
    Central Asia
    loess – soil succession
    Opis:
    Scenario of climate changes in the Late Pleistocene and Holocene in Central Asia is very fragmentary and inconsistent. Therefore, interaction between the development and decline of ancient cultures and the climate fluctuations are difficult to be traced. To resolve this problem, the key role can be played by multidisciplinary studies of unique Late Pleistocene and especially Holocene loess – soil succession of the Tien Shan foothills in Uzbekistan. This area yields unique successions of paleosols interbedded with loesses that are particularly useful for paleoclimate analysis. They are represented by continuous and uninterrupted sedimentary sequences with a highly varied record of magnetic susceptibility. As such, they contain a full sequence of short-term climatic oscillations of the Holocene in high resolution and therefore, in this case, they are exceptional on global scale. The correlation of Late Pleistocene and Holocene climate changes scenario with stages of development and collapse of the past human settlement in Central Asia seems at present one of the most promising research directions, in line with the substantial course of interdisciplinary research on the interaction between humans and the natural environment.
    Źródło:
    Studia Quaternaria; 2016, 33; 57-68
    1641-5558
    2300-0384
    Pojawia się w:
    Studia Quaternaria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Climate and changes in mammal diversity during the late Pleistocene-Holocene in the Pampean Region [Argentina]
    Autorzy:
    Prado, J L
    Alberdi, M T
    Azanza, B
    Sanchez, B
    Powiązania:
    https://bibliotekanauki.pl/articles/20763.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Argentina
    Holocene
    mammal diversity
    mammal
    diversity
    change
    extinction
    Pleistocene
    climate
    paleontology
    climate change
    Opis:
    The association of changes in mammal diversity with periods of global climatic change is suggestive of a causal relationship. Two important features in the testing of this climatic model are as follows: the timing and the pattern of the diversity changes, and the particular climatic variables examined, since different patterns of evolutionary interactions would be expected depending on different climatic variables. In order to analyse the relationship between climate change and faunal events, we need to establish a set of comparable data. To provide a finely resolved picture of both climatic and faunal events, the last 32,500-years were divided into 13 chronological units of 2,500-years each. The limit of 32,500-years was imposed by the availability of good localities with radioisotopic calibration. Climatic stability was measured in these analyses in terms of cycles per unit of time, the amount of variation in temperature per unit of time, and the magnitude of change between modal temperature of one interval less modal temperature from preceding interval. The data presented here suggest that the primary effect of climatic change is on: (1) levels of extinction (or migration) of large mammals; and (2) diversity and origination (or immigration) of small mammals.
    Źródło:
    Acta Palaeontologica Polonica; 2001, 46, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geomorphological records of human activity reflected in fluvial sediments in the Carpathians and their foreland
    Autorzy:
    Gębica, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/294581.pdf
    Data publikacji:
    2013
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    human impact
    climate change
    fluvial deposition
    Eastern Carpathians
    Holocene
    Opis:
    Records of human activity in valleys of the Upper Vistula River catchment and the Upper Dniester River catchment in the area of the Eastern Carpathian Foreland are synchronic and date back to the Neolithic Period. They include alluvia and colluvia in small valleys, linked with local downpours, as well as changes in large valleys, where flooding is reflected in modifications to river channels and an acceleration in the deposition of overbank facies. Among these periods are phases determined climatically (5th–7th centuries AD) and those reflecting human activity (1st–3rd centuries AD), as well as phases recording the coincidence of both factors (middle Neolithic, 10th–11th centuries AD and the Little Ice Age). The most distinct changes leading to transformation in valley slopes and bottoms are linked with the coincidence of humid climatic phases and periods of increased human impact.
    Źródło:
    Landform Analysis; 2013, 22; 21-31
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Earliest cereal cultivation in Egypt recorded in the Faiyum Oasis lake deposits and its palaeoclimatic context
    Autorzy:
    Welc, Fabian
    Marks, Leszek
    Milecka, Krystyna
    Powiązania:
    https://bibliotekanauki.pl/articles/31342967.pdf
    Data publikacji:
    2023
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Neolithic
    Egypt
    Qarun Lake
    early cereal cultivation
    climate change
    Middle Holocene
    Opis:
    We determine the beginning of the Neolithic farming in northern Egypt, based on analysis of core FA-1 of lake deposits in the Faiyum Oasis in northern Egypt. Regular lamination of the early Middle Holocene lake deposits, supported by radiocarbon dating and pollen analysis, indicates the earliest occurrence of domesticated cereals at ~7.8 cal ka BP in this region. The appearance of cereals in the Faiyum region was possible due to fundamental restructuring of regional climatic conditions caused by the changing atmospheric circulation in the eastern Mediterranean region. Stronger northwestern winds were accompanied by increased precipitation in winter and enabled 3 farming phases in the Faiyum Oasis at 7.8–7.6, 7.4–7.2 and 7.0–6.8 cal ka BP, separated by arid episodes with predominant southern winds. Most probably, cereal cultivation concentrated inside local wadis to the north of the lake and was rainfall-dependent. Therefore, early Egyptian farming did not develop based on irrigation systems as commonly thought, but was rain-fed, this being possible due to marked climate change at the beginning of the Middle Holocene.
    Źródło:
    Geological Quarterly; 2023, 67, 2; art. no. 21
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany klimatu w holocenie
    Climate change in the Holocene
    Autorzy:
    Marks, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075568.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    zmiana klimatu
    holocen
    chronozony
    wydarzenia Bonda
    oscylacja północno-atlantycka
    czynnik ludzki
    climate change
    Holocene
    chronozones
    Bond events
    North Atlantic Oscillation
    human impact
    Opis:
    Climate has been changing since the beginning of the Earth. During the Holocene the climate has not changed much but there were both warmer and cooler episodes. Varying insolation is the main reason for climate change during the Holocene. All other reasons, including among others changes of the Earth orbital parameters (Milankovitch cycles) and thermohaline oceanic circulation played a secondary role. Occasional volcanic eruptions were climatic disasters but usually on a local or regional scale and only in a short time. A record of climate change during the Holocene indicates its great influence on the development and decline of ancient civilizations and societies. From a geological point of view there is no reasonable record suggesting that contents of CO2 in the atmosphere played a predominant role of in the ongoing climate change during the last century.
    Źródło:
    Przegląd Geologiczny; 2016, 64, 1; 59--65
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Klimat Arktyki w późnym glacjale i holocenie
    The Arctic climate in Late Glacial and Holocene
    Autorzy:
    Marsz, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/260715.pdf
    Data publikacji:
    2009
    Wydawca:
    Stowarzyszenie Klimatologów Polskich
    Tematy:
    zmiany klimatu
    Arktyka
    holocen
    późny glacjał
    holoceńskie optimum klimatyczne
    średniowieczny okres ciepły
    mała epoka lodowa
    ciepła Arktyka
    "chłodna Arktyka"
    Arctic
    climate change
    Holocene
    Late Glacial
    Holocene Climatic Optimum
    Medieval Warm Period
    Little Ice Age
    "cold Arctic"
    "warm Arctic"
    Opis:
    Praca referuje wyniki badań nad zmianami klimatycznymi w Arktyce, jakie zachodziły od początku późnego glacjału do momentu rozpoczęcia obserwacji instrumentalnych. Większą uwagę skupiono na zmianach klimatycznych, jakie miały miejsce w ciągu ostatnich 2500 lat. Zwrócono również uwagę na synchro-niczność zmian klimatycznych w Arktyce i wyraźnie rysujące się związki między zwiększonym dopływem wód atlantyckich do Arktyki, a kolejnymi fazami ociepleń.
    This work presents an overview of literature devoted to presenting the results of research into climatic changes in the Arctic noted from the beginning of Late Glacial up to the moment when instrumental observation started. Greater emphasis was put on climatic changes which occurred during last 2000-2500 years. It was noted that the climatic changes in the Arctic were synchronical, that the rate of changes from the cooler seasons to the warmer ones and in the other way was fast and that the correlations between the increased import of the Atlantic waters to the Arctic and the following phases of warming were clear. The final part presented how the intensity of the Atlantic waters inflow influences the way the ice cover controls the mechanism of climatic changes in the Arctic.
    Źródło:
    Problemy Klimatologii Polarnej; 2009, 19; 33-79
    1234-0715
    Pojawia się w:
    Problemy Klimatologii Polarnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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