Academic literature on the topic 'Palaeoenvironmental record; Palaeoclimate'

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Journal articles on the topic "Palaeoenvironmental record; Palaeoclimate"

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Leng, M. J., I. Baneschi, G. Zanchetta, C. N. Jex, B. Wagner, and H. Vogel. "Late Quaternary palaeoenvironmental reconstruction from Lakes Ohrid and Prespa (Macedonia/Albania border) using stable isotopes." Biogeosciences 7, no. 10 (2010): 3109–22. http://dx.doi.org/10.5194/bg-7-3109-2010.

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Abstract. Here we present stable isotope data from three sediment records from lakes that lie along the Macedonian-Albanian border (Lake Prespa: 1 core, and Lake Ohrid: 2 cores). The records only overlap for the last 40 kyr, although the longest record contains the MIS 5/6 transition (Lake Ohrid). The sedimentary characteristics of both lakes differ significantly between the glacial and interglacial phases. At the end of MIS 6 Lake Ohrid's water level was low (high δ18Ocalcite) and, although productivity was increasing (high calcite content), the carbon supply was mainly from inorganic catchme
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Leng, M. J., I. Baneschi, G. Zanchetta, C. N. Jex, B. Wagner, and H. Vogel. "Late Quaternary palaeoenvironmental reconstruction from Lakes Ohrid and Prespa (Macedonia/Albania border) using stable isotopes." Biogeosciences Discussions 7, no. 3 (2010): 3815–53. http://dx.doi.org/10.5194/bgd-7-3815-2010.

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Abstract. Here we present stable isotope data from three sediment records from lakes that lie along the Macedonian-Albanian border (Lake Prespa: 1 core, and Lake Ohrid: 2 cores). The records only overlap for the last 40 kyr, although the longest record contains the MIS 5/6 transition (Lake Ohrid). The sedimentary characteristics of both lakes differ significantly between the glacial and interglacial phases. At the end of MIS 6 Lake Ohrid's water level was low (high δ18Ocalcite) and, although productivity was increasing (high calcite content), the carbon supply was mainly from inorganic catchme
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Makaroğlu, Özlem, Norbert R. Nowaczyk, Kadir K. Eriş, and M. Namık Çağatay. "High-resolution palaeomagnetic record from Sea of Marmara sediments for the last 70 ka." Geophysical Journal International 222, no. 3 (2020): 2024–39. http://dx.doi.org/10.1093/gji/ggaa281.

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SUMMARY Magnetostratigraphic and geochemical analyses were performed on two sediment cores recovered from the Sea of Marmara to investigate geomagnetic field variations over the last 70 ka. A chronology for each of the two cores was developed from eight AMS 14C datings, tephrochronology, and tuning of Ca concentrations with stadials and interstadials observed in Greenland ice core oxygen isotope data. Based on the age models, cores MD01–2430 and MRS-CS19 reach back to 70 and 32 ka, respectively. High average sedimentation rates of 43 cm kyr–1 for core MD01–2430 and 68 cm kyr–1 for core MRS-CS1
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Opel, Thomas, Sebastian Wetterich, Hanno Meyer, Alexander Y. Dereviagin, Margret C. Fuchs, and Lutz Schirrmeister. "Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)." Climate of the Past 13, no. 6 (2017): 587–611. http://dx.doi.org/10.5194/cp-13-587-2017.

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Abstract. To reconstruct palaeoclimate and palaeoenvironmental conditions in the northeast Siberian Arctic, we studied late Quaternary permafrost at the Oyogos Yar coast (Dmitry Laptev Strait). New infrared-stimulated luminescence ages for distinctive floodplain deposits of the Kuchchugui Suite (112.5 ± 9.6 kyr) and thermokarst-lake deposits of the Krest Yuryakh Suite (102.4 ± 9.7 kyr), respectively, provide new substantial geochronological data and shed light on the landscape history of the Dmitry Laptev Strait region during Marine Isotope Stage (MIS) 5. Ground-ice stable-isotope data are pre
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Schittek, K., S. T. Kock, A. Lücke, et al. "Environmental and climatic history in the NW Argentine Andes (24° S) over the last 2100 years inferred from a high-altitude peatland record." Climate of the Past Discussions 11, no. 3 (2015): 2037–76. http://dx.doi.org/10.5194/cpd-11-2037-2015.

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Abstract. High-altitude cushion peatlands are versatile archives for high-resolution palaeoenvironmental studies, due to their high accumulation rates, range of proxies and sensitivity to climatic and/or human-induced changes. Especially within the central Andes, the knowledge about climate conditions during the Holocene is limited. In this study, we present the environmental and climatic history for the last 2100 years of Cerro Tuzgle peatland (CTP), which is located in the dry Puna of NW Argentina, based on a multi-proxy approach. X-ray fluorescence (XRF), stable isotope and element content
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Drake, Nicholas, Mustapha Salem, Simon Armitage, et al. "DMP XV: Palaeohydrology and Palaeoenvironment: Initial Results and Report of 2010 and 2011 Fieldwork." Libyan Studies 42 (2011): 139–49. http://dx.doi.org/10.1017/s0263718900004878.

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AbstractThis paper reports the results of fieldwork conducted in the 2010 and 2011 DMP field seasons and of analysis of samples collected during these and previous years. Research has involved 1) studying palaeolake sediment outcrops, 2) using ground penetrating radar (GPR) to determine their extent under the Dahān Ubārī, and 3) coring palaeolakes in order to determine their palaeoenvironmental records. Research on these samples is continuing but some initial findings are discussed in this paper. The most extensive palaeolake sediments are found within the al-Mahruqah Formation and were deposi
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Schittek, Karsten, Sebastian T. Kock, Andreas Lücke, et al. "A high-altitude peatland record of environmental changes in the NW Argentine Andes (24 ° S) over the last 2100 years." Climate of the Past 12, no. 5 (2016): 1165–80. http://dx.doi.org/10.5194/cp-12-1165-2016.

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Abstract. High-altitude cushion peatlands are versatile archives for high-resolution palaeoenvironmental studies, due to their high accumulation rates, range of proxies, and sensitivity to climatic and/or human-induced changes. Especially within the Central Andes, the knowledge about climate conditions during the Holocene is limited. In this study, we present the environmental and climatic history for the last 2100 years of Cerro Tuzgle peatland (CTP), located in the dry Puna of NW Argentina, based on a multi-proxy approach. X-ray fluorescence (XRF), stable isotope and element content analyses
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Vossel, Hannah, Patricia Roeser, Thomas Litt, and Jane M. Reed. "Lake Kinneret (Israel): New insights into Holocene regional palaeoclimate variability based on high-resolution multi-proxy analysis." Holocene 28, no. 9 (2018): 1395–410. http://dx.doi.org/10.1177/0959683618777071.

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The southern Levant is a Mediterranean climate zone of complex variability in which uncertainty remains in regional palaeoclimate reconstruction. In spite of the proven value of diatoms in circum-Mediterranean palaeoenvironmental research, their potential remains largely unexplored in the southern Levant region. In this study, we generate a new, high-resolution multi-proxy record for the last ca. 9000 cal. yr BP, supported by diatom data and key biological, mineralogical and geochemical indicators preserved in a 17.8-m-long sediment sequence recovered from Lake Kinneret (the Sea of Galilee), I
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Stone, Abi E. C. "Last Glacial Maximum conditions in southern Africa." Progress in Physical Geography: Earth and Environment 38, no. 5 (2014): 519–42. http://dx.doi.org/10.1177/0309133314528943.

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The Last Glacial Maximum (LGM) (21±2 ka) is an important period for which to understand past climatic and environmental conditions. In particular it is a key time-slice for evaluating the performance of numerical climate model simulations of glacial palaeoclimates using palaeoenvironmental data sets. However, our palaeoenvironmental data sets and reconstructions of climatic conditions at the LGM are still debated in certain regions. This is the case for southern Africa, despite more than half a century of research since early conceptual models of palaeoclimate were proposed. The greatest debat
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PRADO-PÉREZ, ANTONIO J., ANTONIO DELGADO HUERTAS, M. T. CRESPO, A. MARTÍN SÁNCHEZ, and LUÍS PÉREZ DEL VILLAR. "Late Pleistocene and Holocene mid-latitude palaeoclimatic and palaeoenvironmental reconstruction: an approach based on the isotopic record from a travertine formation in the Guadix-Baza basin, Spain." Geological Magazine 150, no. 4 (2013): 602–25. http://dx.doi.org/10.1017/s0016756812000726.

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AbstractA comprehensive palaeoenvironmental reconstruction of the last 219 ka has been carried out by determining the isotopic signatures (δ18O and δ13C) in 766 samples of a thermogene travertine formation in the Guadix-Baza Tertiary basin (Granada, SE Spain). This travertine formation was dated from ≈ 220 to ≈ 5 ka by means of the alpha-spectrometry technique. Initially, the study of the δ18O values of the travertine formation was carried out because they are excellent indicators of the overall palaeoclimatic condition of a particular site. Likewise, the evolution of δ13C values, which can be
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Dissertations / Theses on the topic "Palaeoenvironmental record; Palaeoclimate"

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Anderson, David E. "Abrupt Holocene climatic change recorded in terrestrial peat sequences from Wester Ross, Scotland." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321616.

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