The Taylor Formation (Holocene) and its macrofaunas, Taylor Dry Valley, Antarctica

Chapman-Smith, Michael

doi:10.1029/ar033p0365

Cited by 9 publications

(4 citation statements)

References 12 publications

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“…Wright and Priestley (1922) figured it as a narrow band. In the maps compiled from information from 1947 through the mid- 1960’s, this structure appeared to be greatly enlarged (Haskell and others, 1965; Bull, 1966; Chapman-Smith, 1981). [Some maps published in the 1960’s are based on those of the British Antarctic (“Terra Nova”) Expedition, 1910–13, e.g.…”

Section: Discussionmentioning

confidence: 99%

Submarine Ice Cliffs on the West Side of McMurdo Sound, Antarctica

Stockton

1983

J. Glaciol.

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ABSTRACT. Eight submari ne ice cliffs have been observed on the west side of McMurdo Sound. Three of thcse cliffs (Mie rs Valley, Cape Chocolate. and Stra nd Mo ra in es) are associated with known ice-cored moraines and a re justifiabl y regarded as underwater expos ures of ice cores in the adjacent coast. Th e ice cliffs at Exp lorers Cove and near Herbertso n G lacier may also be unde rwa ter exposures of ice cores which may be present in adjace nt moraines. Some of these ice cliffs may represent unusual subm arine acc reti onary sea-ice stru ctu res.

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Section: Discussionmentioning

confidence: 99%

Submarine Ice Cliffs on the West Side of McMurdo Sound, Antarctica

Stockton

1983

J. Glaciol.

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“…Since that time, no stratigraphic drilling has been conducted onshore in the Dry Valleys region. A plethora of research has also been undertaken on surface exposures of strata and the geomorphology of the Dry Valleys, including the work of Webb (), Murrell (), Vucetich & Robinson (), Chapman‐Smith (), Campbell & Claridge () and Prentice et al . ().…”

Section: Geological Backgroundmentioning

confidence: 99%

“…; Vucetich & Robinson, ; McGinnis, ; Robinson, ; Robinson & Jaegers, ; Fielding et al ., ). Marine fossil‐bearing sediments are particularly abundant in lower Taylor Valley (Taylor Formation of Speden, ), containing a low‐diversity assemblage of invertebrates including the extant pectinid bivalve Adamussium colbecki (Speden, ; Chapman‐Smith, ). Deposition in 5 to 35 m of marine water was inferred by Chapman‐Smith () for this assemblage, corroborated by studies of foraminifera in nearby DVDP holes by Webb & Wrenn ().…”

Section: Record Of Palaeoenvironmental Changementioning

confidence: 99%

“…Marine fossil‐bearing sediments are particularly abundant in lower Taylor Valley (Taylor Formation of Speden, ), containing a low‐diversity assemblage of invertebrates including the extant pectinid bivalve Adamussium colbecki (Speden, ; Chapman‐Smith, ). Deposition in 5 to 35 m of marine water was inferred by Chapman‐Smith () for this assemblage, corroborated by studies of foraminifera in nearby DVDP holes by Webb & Wrenn (). Up‐valley, the succession preserves less, to ultimately no, evidence of marine conditions, and is dominated by diamicts and sands (Fig.…”

Section: Record Of Palaeoenvironmental Changementioning

confidence: 99%

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Stratigraphic architecture of the Cenozoic succession in the McMurdo Sound region, Antarctica: An archive of polar palaeoenvironmental change in a failed rift setting

Fielding

2017

Sedimentology

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The Victoria Land Basin forms part of the failed West Antarctic Rift, and preserves a Cenozoic succession up to 4 km thick that records the onset of Cenozoic glaciation, and the history of Antarctic glaciation over the past 34 Myr. This succession is relevant both to investigations of modern climate change and to studies of long-term palaeoclimate change in general. This study provides a sedimentological and stratigraphic review of the Victoria Land Basin succession, based on analysis of several continuous drillcores acquired since the 1970s, and supported by seismic stratigraphic analysis of a large array of seismic reflection data. An array of fifteen lithofacies is recognized within the Victoria Land Basin Cenozoic succession, including fossiliferous and diversely bioturbated mudrocks and diatomites, texturally mature sandstones and conglomerates, mixed mudstones and sandstones with dispersed gravel with restricted bioturbation, and diamictites and associated lithologies. These facies record a variety of marine, glaciomarine, proglacial and subglacial environments. Locally, volcanic and volcaniclastic deposits are interbedded in the succession. Lithofacies are arranged in repetitive vertical stacking patterns (depositional sequences) that record glacial advance-retreat cycles with attendant relative sea-level changes. Seven varieties of depositional sequences (stratigraphic motifs) are recognized within the succession as a whole, and interpreted to record a range of depositional settings from rifts unaffected by glacial ice (Motif 7), through varying degrees of glacial influence with abundant meltwater contributions (Motifs 6 to 3), to cold, polar glaciated environments such as that of today (Motifs 2 and 1). Overall, there is a gradual trend upward through the succession from Motif 7 at the base towards Motif 1 at the top, but the trend is not monotonic. A significant conclusion of this work is that a record of dynamic climate and glacial conditions is preserved through the entire 34 Myr period of the Cenozoic icehouse, at least in the Victoria Land Basin. Intervals characterized by consistent stratigraphic style (motifs) are recognized throughout the Victoria Land Basin succession. These intervals are of 1 to 6 Myr duration, each containing numerous depositional sequences; they are one to two orders of magnitude longer than glacial-interglacial cycles, and record periods during which environmental conditions varied in an internally consistent manner. These intervals are considered to reflect convolutions of orbital parameters that remained stable for periods of 10 6 a, and then switched to alternative configurations. Such intervals are directly analogous to 1 to 8 Myr intervals characterized by glaciogenic strata that are preserved within the late Palaeozoic of eastern Australia among other areas, and may be a recurring stratigraphic response to icehouse climate regimes through geological time.1

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The biology and ecology of the epifaunal scallop Adamussium colbecki on the west side of McMurdo Sound, Antarctica

Stockton

1984

Mar. Biol.

103

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The Taylor Formation (Holocene) and its macrofaunas, Taylor Dry Valley, Antarctica

Cited by 9 publications

References 12 publications

Submarine Ice Cliffs on the West Side of McMurdo Sound, Antarctica

Submarine Ice Cliffs on the West Side of McMurdo Sound, Antarctica

Stratigraphic architecture of the Cenozoic succession in the McMurdo Sound region, Antarctica: An archive of polar palaeoenvironmental change in a failed rift setting

The biology and ecology of the epifaunal scallop Adamussium colbecki on the west side of McMurdo Sound, Antarctica

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