Sedimentary environments of the Cenozoic sedimentary debris found in the moraines of the Grove Mountains, east Antarctic and its climatic implications*

Fang, Aimin; Liu, Xiaohan; Lee, Jong Ik; Li, Xiaoli; Huang, Feixiong

doi:10.1080/10020070412331343391

Cited by 7 publications

(5 citation statements)

References 18 publications

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“…Erratics of Cenozoic subglacial diamict also occur in the Grove Mountains, east of the PCMs and Lambert Graben. These may contain palynological evidence for a terrestrial flora but the age is not well constrained (Fang et al 2004). Late Quaternary glacial events in the PCMs have caused little landscape modification and deposited only small moraines preserved above the present regional ice surface (Whitehead & McKelvey 2002).…”

Section: Lambert Graben / Prince Charles Mountainsmentioning

confidence: 99%

A review of the Cenozoic stratigraphy and glacial history of the Lambert Graben—Prydz Bay region, East Antarctica

et al. 2006

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Abstract:The Cenozoic glacial history of East Antarctica is recorded in part by the stratigraphy of the Prydz Bay-Lambert Graben region. The glacigene strata and associated erosion surfaces record at least 10 intervals of glacial advance (with accompanying erosion and sediment compaction), and more than 17 intervals of glacial retreat (enabling open marine deposition in Prydz Bay and the Lambert Graben). The number of glacial advances and retreats is considerably less than would be expected from Milankovitch frequencies due to the incomplete stratigraphic record. Large advances of the Lambert Glacier caused progradation of the continental shelf edge. At times of extreme glacial retreat, marine conditions reached > 450 km inland from the modern ice shelf edge. This review presents a partial reconstruction of Cenozoic glacial extent within Prydz Bay and the Lambert Graben that can be compared to eustatic sea-level records from the southern Australian continental margin.

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Section: Lambert Graben / Prince Charles Mountainsmentioning

confidence: 99%

A review of the Cenozoic stratigraphy and glacial history of the Lambert Graben—Prydz Bay region, East Antarctica

et al. 2006

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“…Lithologically, the glaciogenic sediments bear some similarities with Cenozoic strata of the Sirius Group in the Transantarctic Mountains (Webb et al 1996, Stroeven 1997, Hambrey et al 2003, the Sørsdal Formation in Riiser-Larsen Hills and Vestfold Hills (Quilty 1992, Harwood et al 2000, and the Pagodroma Formation in the northern Prince Charles Mountains (Hambrey & McKelvey 2000a, 2000b. According to our preliminary study, these diamicts were formed in the ice-sheet frontal area by the interaction of glacial movement and ice sheet melt water (Fang et al 2004a). Furthermore, they also contain some late Cenozoic (most probably Pliocene) pollen assemblages (Fang et al 2004b).…”

Section: Sedimentary Records In the Grove Mountainsmentioning

confidence: 74%

“…Among these sedimentary records, the glaciogenic diamicts are of particular importance since they contain a lot of information on glacial evolution in the Grove Mountains (such as evidence to support a dynamic ice sheet). Statistically, clasts contained within the diamicts are predominantly of local origin, indicating that these sedimentary rocks were formed in situ and experienced short transportation distances (Fang et al 2004a). Lithologically, the glaciogenic sediments bear some similarities with Cenozoic strata of the Sirius Group in the Transantarctic Mountains (Webb et al 1996, Stroeven 1997, Hambrey et al 2003, the Sørsdal Formation in Riiser-Larsen Hills and Vestfold Hills (Quilty 1992, Harwood et al 2000, and the Pagodroma Formation in the northern Prince Charles Mountains (Hambrey & McKelvey 2000a, 2000b.…”

Section: Sedimentary Records In the Grove Mountainsmentioning

confidence: 97%

Cenozoic glaciogenic sedimentary record in the Grove Mountains of East Antarctica

Fang

Liu²,

et al. 2005

Antartic science

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During fieldwork of the 1998–99 and 1999–2000 Chinese National Antarctic Research Expedition (CHINARE), three different kinds of Cenozoic sedimentary record were found in the Grove Mountains, which are in East Antarctica about 450km inland of Prydz Bay. These consist of (1) glaciogenic sedimentary erratics found in the moraine banks in the central area of Grove Mountains, which can be subdivided into four types according to different degrees of lithification as well as differences in inner structure and include in-situ diamicts; (2) palaeosols found in several small depressions in the southern slope of the Mount Harding; and (3) different kinds of glacial moraine floating on the surface of blue ice or around the foot of some nunataks. Preliminary results suggest that the in situ glaciogenic sediments were formed in the ice-sheet frontal area by the interaction of glacial movement and ice sheet melt water under climatic conditions warmer than today.

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“… Ice-free areas or blue ice moraines of use for cosmogenic analysis dating (Kong et al 2010; Fogwill et al 2012). Rare, unique or vulnerable glacial and/or geomorphological features (such as protected within ASPA 168 Mount Harding; Fang et al 2004; Gillies et al 2009; Fig. 1).…”

Section: Antarctic Geodiversity: Threats and Protectionmentioning

confidence: 99%

“…• Rare, unique or vulnerable glacial and/or geomorphological features (such as protected within ASPA 168 Mount Harding; Fang et al 2004;Gillies et al 2009; Fig. 1).…”

Section: What Types Of Geological and Geomorphological Elements May Bmentioning

confidence: 99%

Antarctic geoconservation: a review of current systems and practices

et al. 2016

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SUMMARYThe prohibition of commercial mineral resource extraction through the Antarctic Treaty System has removed one significant source of potential damage to Antarctica's geological and geomorphological values. However, given the on-going increase in Antarctic tourism and scientific footprint, some high-quality geological features may be vulnerable to human impact, such as damage due to the construction of logistical facilities, unregulated collection of geological specimens or oversampling for scientific purposes. The Protocol on Environmental Protection to the Antarctic Treaty puts in place a framework for the protection of Antarctica's environmental, scientific, historic, wilderness and aesthetic values. However, the Antarctic Protected Area system is still immature and further implementation of existing management tools may be required to protect the diverse range of vulnerabilities, qualities and spatial scales represented in the geology and geomorphology of the continent. At sites where high-quality mineralogical or palaeontological specimens exist in limited quantities, considerations of how best to prevent oversampling and manage access to remaining material may be supported by assessment of cumulative impacts. Examination of the level of Antarctic specimen loans from a selection of national geological collections suggested that existing publically accessible geological collections could be better utilized, which could reduce environmental impact and oversampling at vulnerable Antarctic sites.

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Sedimentary environments of the Cenozoic sedimentary debris found in the moraines of the Grove Mountains, east Antarctic and its climatic implications*

Cited by 7 publications

References 18 publications

A review of the Cenozoic stratigraphy and glacial history of the Lambert Graben—Prydz Bay region, East Antarctica

A review of the Cenozoic stratigraphy and glacial history of the Lambert Graben—Prydz Bay region, East Antarctica

Cenozoic glaciogenic sedimentary record in the Grove Mountains of East Antarctica

Antarctic geoconservation: a review of current systems and practices

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