Thermal history of the Vestfold Hills (East Antarctica) between Lambert rifting and Gondwana break-up, evidence from apatite fission track data

Lisker, Frank; Wilson, Christopher J.L.; Gibson, Helen

doi:10.1017/s0954102007000144

Cited by 14 publications

(22 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar thermal history has been reported from the Vestfold Hills at the intersection of Lambert Graben and passive continental margin (Lisker et al, 2007). There, AFT data indicate basement cooling below 105°-125°C occurring between 240 and 220 Ma.…”

supporting

confidence: 77%

“…The Phanerozoic development of the southern Mawson Escarpment can only be understood when the thermal history obtained in this study is compared with earlier AFT work from the Lambert Graben (Arne, 1994;Lisker et al, 2003Lisker et al, , 2007 and with the stratigraphic information from the northern PCM and Prydz Bay as the offshore continuation of the Lambert Graben.…”

Section: Discussionmentioning

confidence: 91%

See 1 more Smart Citation

Denudation and uplift of the Mawson Escarpment (eastern Lambert Graben, Antarctica) as indicated by apatite fission track data and geomorphological observation

Lisker

Gibson²,

Wilson³

et al. 2007

Open-File Report

View full text Add to dashboard Cite

Analysis of three vertical profiles from the southern Mawson Escarpment (Lambert Graben) reveals apatite fission track (AFT) ages ranging from 102±20 to 287±23 Ma and mean lengths of 12.2 to 13.0 µm. Quantitative thermal histories derived from these data consistently indicate onset of slow cooling below 110°C began sometime prior to 300 Ma, and a second stage of rapid cooling from paleotemperatures up to ≤100°C to surface temperatures occurred in the Late Cretaceous -Paleocene. The first cooling phase refers to Carboniferous -Jurassic basement denudation up to 5 km associated with the initial rifting of the Lambert Graben. The presence of the ancient East Antarctic Erosion Surface and rapid Late Cretaceous -Paleocene cooling indicate a second denudational episode during which up to 4.5 km of sedimentary cover rocks were removed, and that is likely linked to the Cretaceous Gondwana breakup between Antarctica and India and subsequent passive continental margin formation.

show abstract

supporting

confidence: 77%

Section: Discussionmentioning

confidence: 91%

Denudation and uplift of the Mawson Escarpment (eastern Lambert Graben, Antarctica) as indicated by apatite fission track data and geomorphological observation

Lisker

Gibson²,

Wilson³

et al. 2007

Open-File Report

View full text Add to dashboard Cite

show abstract

“…[3] Approximately 16% of the EAIS is drained by the largest ice stream in Antarctica, the Lambert Glacier, which flows through the north-south trending Lambert Graben and into Prydz Bay on the northeastern margin of the continent (Figure 1) [Bamber et al, 2000;Barrett, 1996;Cox et al, 2010;DeConto and Pollard, 2003a;Hambrey and McKelvey, 2000;Jamieson et al, 2005]. The Lambert Graben was formed primarily by Permo-Triassic rifting [Cox et al, 2010;Kurinin and Grikurov, 1982;Lisker, 2002;Lisker et al, 2007b] and extends $500 km to the south of Prydz Bay into the interior of the continent [O'Brien et al, 2007]. Local, small-volume mafic magmatism associated with the break-up of Gondwana occurred in the Lambert Graben/Prydz Bay area during the early to mid Cretaceous [Arne, 1994;Coffin et al, 2002;Collerson and Sheraton, 1986;Hambrey and McKelvey, 2000;Jamieson et al, 2005;Kurinin and Grikurov, 1982;Lisker et al, 2003Lisker et al, , 2007aLisker et al, , 2007b.…”

Section: Introductionmentioning

confidence: 99%

“…The Lambert Graben was formed primarily by Permo-Triassic rifting [Cox et al, 2010;Kurinin and Grikurov, 1982;Lisker, 2002;Lisker et al, 2007b] and extends $500 km to the south of Prydz Bay into the interior of the continent [O'Brien et al, 2007]. Local, small-volume mafic magmatism associated with the break-up of Gondwana occurred in the Lambert Graben/Prydz Bay area during the early to mid Cretaceous [Arne, 1994;Coffin et al, 2002;Collerson and Sheraton, 1986;Hambrey and McKelvey, 2000;Jamieson et al, 2005;Kurinin and Grikurov, 1982;Lisker et al, 2003Lisker et al, , 2007aLisker et al, , 2007b. [4] In addition to hosting an ice stream currently draining a large portion of the EAIS, the Lambert Graben was an important drainage route for fluvial systems prior to the onset of glaciation in East Antarctica.…”

Section: Introductionmentioning

confidence: 99%

Erosional history of the Prydz Bay sector of East Antarctica from detrital apatite and zircon geo‐ and thermochronology multidating

Tochilin

Reiners

Thomson

et al. 2012

Geochem Geophys Geosyst

View full text Add to dashboard Cite

[1] Approximately 98% of East Antarctica is covered by the East Antarctic Ice Sheet (EAIS), which has covered parts of the continent since the early Oligocene (34 Ma) and obscures evidence about the region's tectonic and erosional history. To better constrain the subglacial record, we analyzed geo-and thermochronologic dates of Oligocene-Quaternary sediments from Prydz Bay, which drains $16% of the EAIS. We used multidating techniques, measuring U-Pb, fission track, and (U-Th)/He dates on apatite and zircon grains and 40 Ar/ 39 Ar dates on hornblende grains to determine crystallization and cooling ages. Apatite and zircon U-Pb dates and hornblende 40 Ar/ 39 Ar dates are dominantly $500 Ma, recording Pan-African metamorphism and magmatism. Zircon fission track dates record cooling at $250-300 Ma and $120 Ma from Permian-Triassic (300-201 Ma) rifting and Cretaceous (120 Ma) magmatic resetting. Mean apatite fission track dates decrease from $280-210 Ma in early Oligocene samples, with lag times decreasing from $250-180 My, indicating increasing erosion rates. Miocene-Quaternary (10.7-0 Ma) samples show a smaller range from $180 to $150 Ma. Youngest measured apatite He ages also decrease from $100 Ma to $25 Ma in Oligocene-Miocene samples. These results indicate increasing erosion rates (<0.02 km/My to >0.2 km/My) in catchments draining to Prydz Bay in the early Oligocene, with slower erosion since the late Miocene. This erosion was likely achieved by glacial incision into pre-existing valleys, reaching depths of $2.8-3.0 km by the late Miocene. This is consistent with EAIS models showing a transition to less erosive, cold-based conditions following the mid-Miocene climatic optimum.

show abstract

“…The t‐T simulations suggest that the presently exposed surfaces of the interior Deccan Plateau were at near‐surface conditions by Permian‐Triassic times. This is consistent with the cooling histories of other Eastern Gondwana fragments such as Madagascar [ Emmel et al ., ; Seward et al ., ], Sri Lanka [ Emmel et al ., ], and East Antarctica [ Arne , ; Lisker et al ., ]. Enhanced cooling in the Eastern Gondwana fragments is coeval with continental extension that preceded the Early Jurassic breakup of East Gondwana from West Gondwana [ Biswas , ; Chatterjee et al ., ; Harrowfield et al ., ].…”

Section: Discussionmentioning

confidence: 99%

Phanerozoic surface history of southern Peninsular India from apatite (U‐Th‐Sm)/He data

Mandal

Fellin

Burg

et al. 2015

Geochem Geophys Geosyst

View full text Add to dashboard Cite

Quantifying bedrock cooling history is crucial for understanding the long‐term landform evolution across passive margins and its control onto the sediment routing system. To constrain the low‐temperature cooling history and its relationships to the Phanerozoic tectonic events of southern Peninsular India, we present new apatite (U‐Th‐Sm)/He (AHe) analyses of 39 Precambrian basement samples. The new AHe ages range from 38.1 ± 6.8 to 364.2 ± 44.6 Ma: they are younger than 50 Ma in the Palghat Gap region and older than 200 Ma in the interior of the Deccan Plateau. Thermal modeling based on AHe data indicates enhanced cooling and exhumation in the interior of the Deccan Plateau by Permian‐Triassic times followed by gradual cooling up to the Present. This discrete episode of Permian‐Triassic cooling is associated with continental extension that preceded the Early Jurassic breakup of Gondwana. Bedrock cooling and exhumation on the southeastern and southern limits of the Deccan Plateau was likely accomplished by Late Cretaceous drainage reorganization. The distribution of old (>200 Ma) AHe ages over the >2600 m high Nilgiri Plateau reflects very low erosion/exhumation rates and adds to examples of long‐lived postorogenic topography. The relatively younger AHe ages from the ∼30 km wide low mountain pass (Palghat Gap) within the Western Ghat Mountains attest for intense Cenozoic erosion likely facilitated by the erodible lithological backbone of the Neoproterozoic shear zone. AHe ages across the western coastal plain challenge the widely hold notion of ∼3 km of post‐breakup isostatic rebound in response to erosion of the margin. Instead, the new AHe data are more compatible with less than 1–1.5 km of crustal denudation along the coastal strip.

show abstract

Thermal history of the Vestfold Hills (East Antarctica) between Lambert rifting and Gondwana break-up, evidence from apatite fission track data

Cited by 14 publications

References 28 publications

Denudation and uplift of the Mawson Escarpment (eastern Lambert Graben, Antarctica) as indicated by apatite fission track data and geomorphological observation

Denudation and uplift of the Mawson Escarpment (eastern Lambert Graben, Antarctica) as indicated by apatite fission track data and geomorphological observation

Erosional history of the Prydz Bay sector of East Antarctica from detrital apatite and zircon geo‐ and thermochronology multidating

Phanerozoic surface history of southern Peninsular India from apatite (U‐Th‐Sm)/He data

Contact Info

Product

Resources

About