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  • 1
    Online Resource
    Online Resource
    Elsevier BV ; 2013
    In:  Journal of Hydrology Vol. 486 ( 2013-4), p. 343-350
    In: Journal of Hydrology, Elsevier BV, Vol. 486 ( 2013-4), p. 343-350
    Type of Medium: Online Resource
    ISSN: 0022-1694
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2013
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    detail.hit.zdb_id: 1473173-3
    SSG: 13
    SSG: 14
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  • 2
    Online Resource
    Online Resource
    Elsevier BV ; 2008
    In:  Global and Planetary Change Vol. 60, No. 1-2 ( 2008-1), p. 28-41
    In: Global and Planetary Change, Elsevier BV, Vol. 60, No. 1-2 ( 2008-1), p. 28-41
    Type of Medium: Online Resource
    ISSN: 0921-8181
    RVK:
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2008
    detail.hit.zdb_id: 20361-0
    detail.hit.zdb_id: 2016967-X
    SSG: 13
    SSG: 14
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  • 3
    Online Resource
    Online Resource
    Informa UK Limited ; 1998
    In:  Geografiska Annaler, Series A: Physical Geography Vol. 80A, No. 1 ( 1998-01), p. 51-65
    In: Geografiska Annaler, Series A: Physical Geography, Informa UK Limited, Vol. 80A, No. 1 ( 1998-01), p. 51-65
    Type of Medium: Online Resource
    ISSN: 0435-3676 , 1468-0459
    RVK:
    Language: English
    Publisher: Informa UK Limited
    Publication Date: 1998
    detail.hit.zdb_id: 3694-8
    detail.hit.zdb_id: 1480727-0
    SSG: 14
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  • 4
    Online Resource
    Online Resource
    Informa UK Limited ; 1998
    In:  Geografiska Annaler: Series A, Physical Geography Vol. 80, No. 1 ( 1998-04), p. 51-65
    In: Geografiska Annaler: Series A, Physical Geography, Informa UK Limited, Vol. 80, No. 1 ( 1998-04), p. 51-65
    Type of Medium: Online Resource
    ISSN: 0435-3676 , 1468-0459
    RVK:
    Language: English
    Publisher: Informa UK Limited
    Publication Date: 1998
    detail.hit.zdb_id: 3694-8
    detail.hit.zdb_id: 1480727-0
    SSG: 14
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  • 5
    Online Resource
    Online Resource
    SAGE Publications ; 2023
    In:  The Holocene Vol. 33, No. 1 ( 2023-01), p. 112-125
    In: The Holocene, SAGE Publications, Vol. 33, No. 1 ( 2023-01), p. 112-125
    Abstract: When Ötzi, the Iceman, was found in a gully in the Tisenjoch pass in the Tyrolean Alps in 1991, he was a huge surprise for the archaeological community. The lead initial investigator of the find argued that it was unique, preserved by serendipitous circumstances. It was hypothesised that the mummy with associated artefacts had been quickly covered by glacier ice and stayed buried until the melt-out in 1991. It is now more than 30 years since Ötzi appeared. In this paper, we take a closer look at how the find can be understood today, benefitting from increased knowledge gained from more than two decades of investigations of other glacial archaeological sites, and from previous palaeo-biological investigations of the find assemblage. In the light of radiocarbon dates from the gully and new glaciological evidence regarding mass balance, it is likely that Ötzi was not permanently buried in ice immediately after his death, but that the gully where he lay was repeatedly exposed over the next 1500 years. We discuss the nature of the ice covering the site, which is commonly described as a basally sliding glacier. Based on the available evidence, this ice is better understood as a non-moving, stationary field of snow and ice, frozen to the bedrock. The damaged artefacts found with Ötzi were probably broken by typical postdepositional processes on glacial archaeological sites, and not, as previously claimed, during conflict prior to Ötzi’s flight from the valley below.
    Type of Medium: Online Resource
    ISSN: 0959-6836 , 1477-0911
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2027956-5
    SSG: 14
    SSG: 3,4
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  • 6
    In: The Holocene, SAGE Publications, Vol. 22, No. 4 ( 2012-04), p. 485-496
    Abstract: The main aim of this study is to describe consequences of climate change in the mountain region of southern Norway with respect to recently exposed finds of archaeological remains associated with reindeer hunting and trapping at and around ice patches in central southern Norway. In the early years of the twenty-first century, warm summers caused negative glacier mass balance and significant glacier retreat and melting of ice patches in central southern Norway. As a result, prehistoric remains lost and/or left by past reindeer hunters appeared at ice patches in mountain areas of southern Norway. In the warm summer and autumn of 2006 the number of artefact recoveries at ice patches increased significantly because of melting of snow and ice patches and more than 100 objects were recovered in the Oppland county alone. In 2009, detailed multidisciplinary investigations were carried out at the Juvfonne ice patch in Jotunheimen at an elevation of c. 1850 metres. A well-preserved Iron Age hunting station was discovered and in total c. 600 artefacts have been documented at the Juvfonne site alone. Most of the objects were recovered and brought to the Museum of Cultural History at the University of Oslo for conservation, exhibition and storing. Thirteen so called ‘scaring sticks’ recovered from the recently exposed foreland of Juvfonne were radiocarbon dated, yielding ages that group in two separate time intervals, ad 246–534 and ad 804–898 (±1 sigma). By putting the temporal distribution of the radiocarbon-dated artefacts into the context of late-Holocene glacier-size variations in the Jotunheimen and Jostedalsbreen regions, we conclude that the most extensive reindeer hunting and trapping associated with snow/ice patches was related to periods with prevailing warm summers when the reindeer herds gathered on high-altitude, contracted glaciers and ice patches to avoid insect plagues. The ‘freshness’ of the fragile organic finds strongly indicates that at least some of the artefacts were rapidly covered by snow and ice and that they may have been more-or-less continuously covered by snow and ice since they were first buried.
    Type of Medium: Online Resource
    ISSN: 0959-6836 , 1477-0911
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2012
    detail.hit.zdb_id: 2027956-5
    SSG: 14
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  • 7
    In: The Holocene, SAGE Publications, Vol. 23, No. 6 ( 2013-06), p. 796-809
    Abstract: Omnsbreen is a small ( 〈 0.5 km 2 ) and degrading glacier situated at the regional lower limit of present-day permafrost distribution and glaciation. At present, the existence of Omnsbreen is mainly dependent on wind-borne snow redistributed by the prevailing westerly winter-wind, and lies in an area of marginal permafrost occurrence. During the ‘Little Ice Age’ (LIA) both the glacier and the distribution of permafrost in the area reached their maximum late-Holocene areal extents. The first occurrence of Omnsbreen is recorded in sediment cores retrieved from a proglacial lake and dated at ad 1425, and marks the onset of the local LIA. Reconstruction of the maximum LIA extent by means of geomorphic indicators revealed a size of 7.1 km 2 , a volume of more than 0.25 km 3 and a maximum glacier thickness of 110 m. Since the LIA Omnsbreen has been reduced by more than 90% in area. Omnsbreen retreated rapidly from its LIA maximum, which we suggest was determined by the shape of the glacier, filling up the valley, and hence being unable to accumulate wind-borne snow. Prominent glacier marginal landforms are absent along the maximum LIA extent of Omnsbreen. We propose that the lack of glacier marginal landforms in this case is indicative of a cold glacier margin, and that the landscape evolution in maritime and marginal permafrost regions is characterised as being closely connected with glacial activity.
    Type of Medium: Online Resource
    ISSN: 0959-6836 , 1477-0911
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2027956-5
    SSG: 14
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  • 8
    In: The Holocene, SAGE Publications, Vol. 14, No. 2 ( 2004-02), p. 299-310
    Abstract: During the Lateglacial and early Holocene, abrupt, millennial-scale climatic variations are recorded in a wide range of high-resolution proxy records from marine and terrestrial archives in NW Europe. Our review of the evidence for these rapid climate events do not show an apparent link to possible forcing factors such as long-term, orbitally induced variations in solar radiation, short-term variations in solar activity as inferred from 14 C, atmospheric carbon dioxide concentration, or volcanic sulphate as recorded in the GISP2 ice-core record. There is, however, a remarkable degree of similarity with the number, duration and timing of episodes of increased flux of fresh water to the north Atlantic and Arctic Oceans from the Laurentide ice sheet and from the Baltic ice lake in SW Sweden. These freshwater outburst events occurred when continental runoff from the Laurentide ice sheet was rerouted from the Mississippi River to the Hudson River, St Lawrence River, Hudson Strait and along the Mackenzie River to the Atlantic and Arctic Oceans, and when the Baltic ice lake in SW Sweden drained to Skagerrak. Periods of increased freshwater flow to the North Atlantic and Arctic Oceans may thus provide a mechanism to explain the abrupt and significant Lateglacial and early Holocene climate events in NW Europe. The idea that freshwater outbursts might drive abrupt climate events is not new, but previous work may have underestimated the extent of support from proxy data and overestimated the influence of the Laurentide ice sheet.
    Type of Medium: Online Resource
    ISSN: 0959-6836 , 1477-0911
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2004
    detail.hit.zdb_id: 2027956-5
    SSG: 14
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  • 9
    Online Resource
    Online Resource
    SAGE Publications ; 1992
    In:  The Holocene Vol. 2, No. 1 ( 1992-03), p. 79-84
    In: The Holocene, SAGE Publications, Vol. 2, No. 1 ( 1992-03), p. 79-84
    Abstract: A compilation of Holocene glacial advances throughout the world is compared with summer solar insolation integrated over the Northern Hemisphere and the magnitudes of global acid fallout from volcanic eruptions north of 20°S*** estimated from the acidity signal of annual ice layers in the Crëte and Camp Century ice cores in Greenland. Correlation analysis between glacial advances versus volcanic eruptions yielded a correlation coefficient of r = 0.71. A ‘climatic forcing’ curve (solar insolation and volcanic eruptions weighted 1:1) versus glacial advances increased the correlation coefficient to r = 0.90. This suggests that the combined effect of volcanic aerosols and orbital-related Northern Hemisphere summer insolation may have been the primary forcing mechanism of worldwide climate and glacier fluctuations throughout the Holocene.
    Type of Medium: Online Resource
    ISSN: 0959-6836 , 1477-0911
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 1992
    detail.hit.zdb_id: 2027956-5
    SSG: 14
    SSG: 3,4
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  • 10
    Online Resource
    Online Resource
    SAGE Publications ; 2009
    In:  The Holocene Vol. 19, No. 3 ( 2009-05), p. 415-426
    In: The Holocene, SAGE Publications, Vol. 19, No. 3 ( 2009-05), p. 415-426
    Abstract: The proglacial area of Bødalsbreen glacier in western Norway contains nine moraine ridges formed at the maximum of the `Little Ice Age' (~AD 1755) and during the subsequent glacier retreat (AD 1767—2000). The frontal moraines are composed of a sandy diamicton, whereas the lateral ones consist of only boulder-sized clasts without any matrix. These lateral moraines seemingly are composed of a very high proportion of mature clasts, a notion supported by detailed clast roundness and shape analyses. Furthermore, there is evidence for a decline in clast maturity between the outer (older) three and the inner (younger) three moraine ridges. This decline is interpreted as a change from recycled to freshly plucked clasts. Thus, the more mature clasts in the outer moraines are thought to consist of sediment that has been recycled in the glacial system, whereas the less mature clasts on the inner moraine ridges comprise younger glacially, freshly plucked material. The Holocene glacial history of the study area with a considerably fluctuating ice margin allowed much of the sediment in the catchment to undergo several cycles of erosion, transport and deposition. Moreover, an undulating subglacial topography with several major depressions may have acted as efficient sediment traps during deglaciation phases and as sediment sources during glacial advances. The concept of glacial sediment recycling may thus be applicable to many glaciers around the world, particularly those with a history of intensive glacier fluctuations.
    Type of Medium: Online Resource
    ISSN: 0959-6836 , 1477-0911
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2027956-5
    SSG: 14
    SSG: 3,4
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