Glacial history of the Maritime Alps from the Last Glacial Maximum to the Little Ice Age

2016 ◽  
Vol 433 (1) ◽  
pp. 137-159 ◽  
Author(s):  
Paolo Roberto Federici ◽  
Adriano Ribolini ◽  
Matteo Spagnolo
Keyword(s):  
Last Glacial Maximum ◽  
Little Ice Age ◽  
Glacial Maximum ◽  
Ice Age ◽  
Glacial History ◽  
Maritime Alps ◽  
Last Glacial ◽  
History Of ◽  
The Last Glacial Maximum ◽  
The Last Glacial

scholarly journals Subglacial carbonate deposits as a potential proxy for glacier's existence

2020 ◽  
Author(s):  
Matej Lipar ◽  
Andrea M. Pérez ◽  
Jure Tičar ◽  
Miha Pavšek ◽  
Matej Gabrovec ◽  
...  
Keyword(s):  
Last Glacial Maximum ◽  
Little Ice Age ◽  
Glacial Maximum ◽  
Ice Age ◽  
European Alps ◽  
Ice Shelves ◽  
Last Glacial ◽  
The Last Glacial Maximum ◽  
Carbonate Deposits ◽  
The Last Glacial

Abstract. The retreat of ice shelves and glaciers over the last century provides unequivocal evidence of recent global warming. Glacierets (miniature glaciers) are an important component that highlights the global retreat of glaciers, but knowledge of their behaviour prior to the Little Ice Age is lacking. Here, we present subglacial carbonate deposits from a recently exposed surface previously occupied by the disappearing Triglav Glacier (southeastern European Alps) that may elucidate the glacier’s existence throughout the entire Holocene since their maximum uranium-thorium (U-Th) ages suggest their possible preservation since the Last Glacial Maximum and Younger Dryas. These thin deposits, formed by regelation, are easily eroded if exposed during previous Holocene climatic optima. The age data indicate the glacier’s present unprecedented level of retreat since the Last Glacial Maximum, and the potential of subglacial carbonates as additional proxies to highlight the extraordinary nature of the current global climatic changes.

scholarly journals Subglacial carbonate deposits as a potential proxy for a glacier's former presence

2021 ◽  
Vol 15 (1) ◽  
pp. 17-30
Author(s):  
Matej Lipar ◽  
Andrea Martín-Pérez ◽  
Jure Tičar ◽  
Miha Pavšek ◽  
Matej Gabrovec ◽  
...  
Keyword(s):  
Last Glacial Maximum ◽  
Little Ice Age ◽  
Glacial Maximum ◽  
Ice Age ◽  
European Alps ◽  
Ice Shelves ◽  
Last Glacial ◽  
The Last Glacial Maximum ◽  
Carbonate Deposits ◽  
The Last Glacial

Abstract. The retreat of ice shelves and glaciers over the last century provides unequivocal evidence of recent global warming. Glacierets (miniature glaciers) and ice patches are important components of the cryosphere that highlight the global retreat of glaciers, but knowledge of their behaviour prior to the Little Ice Age is lacking. Here, we report the uranium–thorium age of subglacial carbonate deposits from a recently exposed surface previously occupied by the disappearing Triglav Glacier (southeastern European Alps) that may elucidate the glacier's presence throughout the entire Holocene. The ages suggest the deposits' possible preservation since the Last Glacial Maximum and Younger Dryas. These thin deposits, formed by regelation, are easily eroded if exposed during previous Holocene climatic optima. The age data indicate the glacier's present unprecedented level of retreat since the Last Glacial Maximum and the potential of subglacial carbonates as additional proxies to highlight the extraordinary nature of the current global climatic changes.

scholarly journals Antarctic glacial history since the Last Glacial Maximum: an overview of the record on land

1998 ◽  
Vol 10 (3) ◽  
pp. 326-344 ◽  
Author(s):  
Ólafur Ingólfsson ◽  
Christian Hjort ◽  
Paul A. Berkman ◽  
Svante Björck ◽  
Eric Colhoun ◽  
...  
Keyword(s):  
Last Glacial Maximum ◽  
Northern Hemisphere ◽  
Glacial Maximum ◽  
Ice Age ◽  
Glacial History ◽  
Last Glacial ◽  
Victoria Land ◽  
Global Sea Level ◽  
The Last Glacial Maximum ◽  
The Last Glacial

This overview examines available circum-Antarctic glacial history archives on land, related to developments after the Last Glacial Maximum (LGM). It considers the glacial-stratigraphic and morphologic records and also biostratigraphical information from moss banks, lake sediments and penguin rookeries, with some reference to relevant glacial marine records. It is concluded that Holocene environmental development in Antarctica differed from that in the Northern Hemisphere. The initial deglaciation of the shelf areas surrounding Antarctica took place before 10 000 14C yrs before present(BP), and was controlled by rising global sea level. This was followed by the deglaciation of some presently ice-free inner shelf and land areas between 10 000 and 8000 yr BP. Continued deglaciation occurred gradually between 8000 yr BP and 5000 yr BP. Mid-Holocene glacial readvances are recorded from various sites around Antarctica. There are strong indications of a circum-Antarctic climate warmer than today 4700–2000 yr BP. The best dated records from the Antarctic Peninsula and coastal Victoria Land suggest climatic optimums there from 4000–3000 yr BP and 3600–2600 yr BP, respectively. Thereafter Neoglacial readvances are recorded. Relatively limited glacial expansions in Antarctica during the past few hundred years correlate with the Little Ice Age in the Northern Hemisphere.

scholarly journals The glacial and sea-level history of Darling Peninsula, eastern Ellesmere Island

2002 ◽  
Vol 52 (3) ◽  
pp. 349-359 ◽  
Author(s):  
Lyn Gualtieri
Keyword(s):  
Sea Level ◽  
Last Glacial Maximum ◽  
Glacial Maximum ◽  
Ellesmere Island ◽  
Glacial History ◽  
Last Glacial ◽  
History Of ◽  
Raised Beaches ◽  
The Last Glacial Maximum ◽  
The Last Glacial

Abstract The glacial history of Darling Peninsula is recorded by meltwater channels and lateral moraines deposited by local ice that extended seaward of the present coast during the last glacial maximum. Above these moraines, shelly till and erratics of both Greenland and Ellesmere Island prove nance record more extensive ice of unknown age. At the time of this more extensive ice cover, Ellesmere Island ice displaced Greenland ice from many parts of this coastline, as shown by the widespread absence of Greenland erratics and shelly tills above Holocene marine limit. The chronology of deglaciation is based on 14 C dates obtained on marine shells collected from either ice-contact deltas or raised beaches close to marine limit (79-88 m asl). Deglaciation began at least 7.5 ka BP and the distribution of ice on the peninsula was similar to present conditions by 6.0 ka BP. The reconstruction of the sea level history of Darling Peninsula contributes to the reconstruction of regional isobases drawn on 7.5 ka BP shorelines which locally reach 80-90 m asl.

scholarly journals Constant wind regimes during the Last Glacial Maximum and early Holocene: evidence from Little Llangothlin Lagoon, New England Tablelands, eastern Australia

2016 ◽  
Vol 12 (7) ◽  
pp. 1435-1444 ◽  
Author(s):  
James Shulmeister ◽  
Justine Kemp ◽  
Kathryn E. Fitzsimmons ◽  
Allen Gontz
Keyword(s):  
Last Glacial Maximum ◽  
High Elevation ◽  
Glacial Maximum ◽  
Early Holocene ◽  
Luminescence Dating ◽  
Ice Age ◽  
Last Glacial ◽  
Eastern Australia ◽  
The Last Glacial Maximum ◽  
The Last Glacial

Abstract. Here we present the results of a multi-proxy investigation – integrating geomorphology, ground-penetrating radar, and luminescence dating – of a high-elevation lunette and beach berm in northern New South Wales, eastern Australia. The lunette occurs on the eastern shore of Little Llangothlin Lagoon and provides evidence for a lake high stand combined with persistent westerly winds at the Last Glacial Maximum (LGM – centring on 21.5 ka) and during the early Holocene (ca. 9 and 6 ka). The reconstructed atmospheric circulation is similar to the present-day conditions, and we infer no significant changes in circulation at those times, as compared to the present day. Our results suggest that the Southern Hemisphere westerlies were minimally displaced in this sector of Australasia during the latter part of the last ice age. Our observations also support evidence for a more positive water balance at the LGM and early Holocene in this part of the Australian sub-tropics.

scholarly journals A brief history of climate – the northern seas from the Last Glacial Maximum to global warming

2014 ◽  
Vol 106 ◽  
pp. 225-246 ◽  
Author(s):  
Tor Eldevik ◽  
Bjørg Risebrobakken ◽  
Anne E. Bjune ◽  
Carin Andersson ◽  
H. John B. Birks ◽  
...  
Keyword(s):  
Global Warming ◽  
Last Glacial Maximum ◽  
Glacial Maximum ◽  
Last Glacial ◽  
History Of ◽  
The Last Glacial Maximum ◽  
The Last Glacial
Sign in / Sign up

Export Citation Format

Share Document