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Journal articles on the topic 'Geology – Antarctica – Maxwell Bay'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Monien, Patrick, Bernhard Schnetger, Hans-Jürgen Brumsack, H. Christian Hass, and Gerhard Kuhn. "A geochemical record of late Holocene palaeoenvironmental changes at King George Island (maritime Antarctica)." Antarctic Science 23, no. 3 (February 1, 2011): 255–67. http://dx.doi.org/10.1017/s095410201100006x.

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AbstractDuring RV Polarstern cruise ANT-XXIII/4 in 2006, a gravity core (PS 69/335-2) and a giant box core (PS 69/335-1) were retrieved from Maxwell Bay off King George Island (KGI). Comprehensive geochemical (bulk parameters, quantitative XRF, Inductively Coupled Plasma Mass Spectrometry) and radiometric dating analyses (14C, 210Pb) were performed on both cores. A comparison with geochemical data from local bedrock demonstrates a mostly detrital origin for the sediments, but also points to an overprint from changing bioproductivity in the overlying water column in addition to early diagenetic processes. Furthermore, ten tephra layers that were most probably derived from volcanic activity on Deception Island were identified. Variations in the vertical distribution of selected elements in Maxwell Bay sediments further indicate a shift in source rock provenance as a result of changing glacier extents during the past c. 1750 years that may be linked to the Little Ice Age and the Medieval Warm Period. Whereas no evidence for a significant increase in chemical weathering rates was found, 210Pb data revealed that mass accumulation rates in Maxwell Bay have almost tripled since the 1940s (0.66 g cm-2 yr-1 in ad 2006), which is probably linked to rapid glacier retreat in this region due to recent warming.

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2

Câmara, Paulo E. A. S., Barbara Guedes Costa Silva, Micheline Carvalho-Silva, and Diego Knop Henriques. "The moss flora of Ostrov Geologov (Geologists Island), Maxwell Bay, King George Island, Antarctica." Boletín de la Sociedad Argentina de Botánica 52, no. 2 (July 7, 2017): 251–55. http://dx.doi.org/10.31055/1851.2372.v52.n2.17439.

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Located of the east coast of Fildes Peninsula, South of Ardley Island, at King George Island, Ostrov Geologov (Geologist Islands) is a small island with 0.25 miles long. It only had one plant record published so far. We have conducted extensive fieldwork on the site and provide here a comprehensive checklist and a key for the moss species occurring on the island. Despite its small size, theislandcontains about 35% of all theFildes Peninsula moss flora, six new records were found. The pristine state of the island due to its relative isolation, presence of avian nesting sites and a relatively rich moss flora are strong arguments in favor of protection status for the island.

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3

Hass, H. C., G. Kuhn, P. Monien, H. J. Brumsack, and M. Forwick. "Climate fluctuations during the past two millennia as recorded in sediments from Maxwell Bay, South Shetland Islands, West Antarctica." Geological Society, London, Special Publications 344, no. 1 (2010): 243–60. http://dx.doi.org/10.1144/sp344.17.

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4

Yoon, H. I., B. K. Park, E. W. Domack, and Y. Kim. "Distribution and dispersal pattern of suspended particulate matter in Maxwell Bay and its tributary, Marian Cove, in the South Shetland Islands, West Antarctica." Marine Geology 152, no. 4 (December 1998): 261–75. http://dx.doi.org/10.1016/s0025-3227(98)00098-x.

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5

Majewski, Wojciech, Julia S. Wellner, Witold Szczuciński, and John B. Anderson. "Holocene oceanographic and glacial changes recorded in Maxwell Bay, West Antarctica." Marine Geology 326-328 (October 2012): 67–79. http://dx.doi.org/10.1016/j.margeo.2012.08.009.

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6

Khim, Boo-Keun, and Ho Il Yoon. "Postglacial marine environmental changes in Maxwell Bay, King George Island, West Antarctica." Polar Research 22, no. 2 (January 12, 2003): 341–53. http://dx.doi.org/10.3402/polar.v22i2.6464.

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7

Milliken, K. T., J. B. Anderson, J. S. Wellner, S. M. Bohaty, and P. L. Manley. "High-resolution Holocene climate record from Maxwell Bay, South Shetland Islands, Antarctica." Geological Society of America Bulletin 121, no. 11-12 (August 28, 2009): 1711–25. http://dx.doi.org/10.1130/b26478.1.

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8

Khim, Boo-Keun, and Ho Il Yoon. "Postglacial marine environmental changes in Maxwell Bay, King George Island, West Antarctica." Polar Research 22, no. 2 (December 2003): 341–53. http://dx.doi.org/10.1111/j.1751-8369.2003.tb00116.x.

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9

Nitsche, F. O., R. D. Larter, K. Gohl, A. G. C. Graham, and G. Kuhn. "Bedrock channels in Pine Island Bay, West Antarctica." Geological Society, London, Memoirs 46, no. 1 (2016): 217–18. http://dx.doi.org/10.1144/m46.1.

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10

Potocka, Marta, and Ewa Krzemińska. "Trichocera maculipennis (Diptera)—an invasive species in Maritime Antarctica." PeerJ 6 (August 14, 2018): e5408. http://dx.doi.org/10.7717/peerj.5408.

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Antarctica, with its severe conditions, is poor in terrestrial fauna species. However, an increase in human presence together with climate change may cause an influx of non-native species. Here we report a significant increase in colonized area of one of the few known invasive species to date in Antarctica. Non-native flies of Trichocera maculipennis have been recently observed in the Admiralty Bay area on King George Island, South Shetlands Islands, West Antarctica, 10 years after its first record in Maritime Antarctica (Maxwell Bay, King George Island). Its rapid spread across the island, despite geographic barriers such as glaciers, indicates successful adaptation to local environmental conditions and suggests this species is invasive. The mode of life of T. maculipennis, observed in natural and anthropogenous habitat and in laboratory conditions, is reported. The following adaptations enabled its invasion and existence within the sewage system in Antarctic scientific stations: the ability to survive in complete darkness, male ability to mate on the substrate surface without prior swarming in flight, and adaptation of terrestrial larvae to survive in semi-liquid food. Possible routes of introduction to Antarctica and between two bays on King George Island are discussed, as well as further research leading to the containment and eradication of this species.

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11

Kim, Dongseon, Byong-Kwon Park, Ho Il Yoon, and Cheon Yun Kang. "Geochemical evidence for Holocene paleoclimatic changes in Maxwell Bay of South Shetland Islands, West Antarctica." Geosciences Journal 3, no. 1 (March 1999): 55–62. http://dx.doi.org/10.1007/bf02910235.

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12

Khim, Boo-Keun, Byong-Kwon Park, and Ho Il Yoon. "Oxygen isotopic compositions of seawater in the Maxwell Bay of King George Island, West Antarctica." Geosciences Journal 1, no. 2 (June 1997): 115–21. http://dx.doi.org/10.1007/bf02910483.

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13

Jakobsson, M., and J. B. Anderson. "Corrugation ridges in the Pine Island Bay glacier trough, West Antarctica." Geological Society, London, Memoirs 46, no. 1 (2016): 265–66. http://dx.doi.org/10.1144/m46.5.

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14

Cerrano, Carlo, Giorgio Bavestrello, Barbara Calcinai, Riccardo Cattaneo-Vietti, and Antonio Sarà. "Asteroids eating sponges from Tethys Bay, East Antarctica." Antarctic Science 12, no. 4 (December 2000): 425–26. http://dx.doi.org/10.1017/s095410200000050x.

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In many Antarctic benthic communities, sponges can be considered as keystone species on both hard and soft bottoms, affecting community structure and sediment texture (Cattaneo-Vietti et al. 2000). Moreover, Antarctic sponges are known to be exploited by numerous organisms as atrophic source. The most important Antarctic sponge predators are asteroids and molluscs which move and digest slowly. The activity of invertebrate predators is not affected by the sponge nutritional composition: toxicity and relative abundance are considered to be the most important factors regulating predation on the Antarctic sponge fauna (McClintock 1987).

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15

Rego, Adriana, António G. G. Sousa, João P. Santos, Francisco Pascoal, João Canário, Pedro N. Leão, and Catarina Magalhães. "Diversity of Bacterial Biosynthetic Genes in Maritime Antarctica." Microorganisms 8, no. 2 (February 18, 2020): 279. http://dx.doi.org/10.3390/microorganisms8020279.

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Bacterial natural products (NPs) are still a major source of new drug leads. Polyketides (PKs) and non-ribosomal peptides (NRP) are two pharmaceutically important families of NPs and recent studies have revealed Antarctica to harbor endemic polyketide synthase (PKS) and non-ribosomal peptide synthetase (NRPS) genes, likely to be involved in the production of novel metabolites. Despite this, the diversity of secondary metabolites genes in Antarctica is still poorly explored. In this study, a computational bioprospection approach was employed to study the diversity and identity of PKS and NRPS genes to one of the most biodiverse areas in maritime Antarctica—Maxwell Bay. Amplicon sequencing of soil samples targeting ketosynthase (KS) and adenylation (AD) domains of PKS and NRPS genes, respectively, revealed abundant and unexplored chemical diversity in this peninsula. About 20% of AD domain sequences were only distantly related to characterized biosynthetic genes. Several PKS and NRPS genes were found to be closely associated to recently described metabolites including those from uncultured and candidate phyla. The combination of new approaches in computational biology and new culture-dependent and -independent strategies is thus critical for the recovery of the potential novel chemistry encoded in Antarctica microorganisms.

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16

Barnes, David K. A., Katrin Linse, Peter Enderlein, Dan Smale, Keiron P. P. Fraser, and Matt Brown. "Marine richness and gradients at Deception Island, Antarctica." Antarctic Science 20, no. 3 (May 19, 2008): 271–80. http://dx.doi.org/10.1017/s0954102008001090.

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AbstractStudies of the recovery of the fauna following the 1967–70 eruptions at Deception Island, South Shetland Islands, have made it one of the best-studied marine sites of the Southern Ocean for biodiversity. Using SCUBA we surveyed the mega- and macro-epifauna of its subtidal zones in the entrance (Neptune's Bellows), immediately inside the caldera (Whaler's Bay) and well within the caldera (Fumarole Bay). Richness declined from 10 phyla, 13 classes and 35 species at Neptune's Bellows to three phyla, four classes and five species in Whaler's Bay and just two phyla, classes and species at Fumarole Bay. Amongst the 35 species we found at Neptune's Bellows, 14 were previously unrecorded from Deception Island. Despite many ship visits and amongst the warmest sea temperatures in the Southern Ocean, the Non Indigenous Species (NIS) algae were not found in our survey. Deception Island has been recolonized considerably since the recent eruptions, but many taxa are still very poorly represented and the colonizers present are mainly those with planktotrophic larvae. Examination of the literature revealed that to date 163 named marine species have been found within the caldera as well as at least 50 more morphospecies, which are yet to be identified. Species accumulation has consistently increased across eight recent samples reported and the number of species reported there is likely to reach 300 when taxa such as the nematodes are identified to species level. This represents a first meaningful total species estimate for an Antarctic marine area and, as the site is comparatively impoverished, indicates how rich the surrounding Antarctic shelf must be.

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17

Filippova, J. A., and E. A. Pakhomov. "Young squid in the plankton of Prydz Bay, Antarctica." Antarctic Science 6, no. 2 (June 1994): 171–73. http://dx.doi.org/10.1017/s095410209400026x.

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A collection of juvenile squid were caught with the Isaacs-Kidd midwater trawl (IKMT) and the Juday plankton net at 86 stations in Prydz Bay (60°–67°30′S, 60°–80°E) to a depth of 500 m but mostly at 0–200 m. Five species were identified, Psychroteuthis glacialis, Alluroteuthis antarcticus, Brachioteuthis sp. and the cranchiids Galiteuthis glacialis and Mesonychoteuthis hamiltoni. P. glacialis and the cranchiids were the most abundant species. Young P. glacialis (5–17 mm ML) were taken at depths of 5–200 m but concentrated in the upper 100 m whilst the cranchiids (5–35 mm ML) occurred over a wider vertical range (50–500 m). The regular occurrence of paralarvae and juveniles suggests that all the species reproduce in the Antarctic. Juvenile Vertical distribution appears to differ between species with P. glacialis concentrated relatively near the surface, the cranchiids in the upper part of the Circumpolar Deep Water and A. antarcticus widely distributed to a depth of 900 m.

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18

Li, Baohua, Ho-Il Yoon, and Byong-Kwon Park. "Foraminiferal assemblages and CaCO3 dissolution since the last deglaciation in the Maxwell Bay, King George Island, Antarctica." Marine Geology 169, no. 1-2 (September 2000): 239–57. http://dx.doi.org/10.1016/s0025-3227(00)00059-1.

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19

Ahn, In-Young, Soo Hyung Lee, Kyung Tae Kim, Jeong Hee Shim, and Dong-Yup Kim. "Baseline heavy metal concentrations in the Antarctic clam, Laternula elliptica in Maxwell Bay, King George Island, Antarctica." Marine Pollution Bulletin 32, no. 8-9 (August 1996): 592–98. http://dx.doi.org/10.1016/0025-326x(95)00247-k.

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20

Barbara, Loïc, Xavier Crosta, Guillaume Massé, and Olivier Ther. "Deglacial environments in eastern Prydz Bay, East Antarctica." Quaternary Science Reviews 29, no. 19-20 (September 2010): 2731–40. http://dx.doi.org/10.1016/j.quascirev.2010.06.027.

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21

Stüwe, Kurt, Hans‐Martin Braun, and Helmuth Peer. "Geology and structure of the Larsemann Hills area, Prydz Bay, East Antarctica." Australian Journal of Earth Sciences 36, no. 2 (June 1989): 219–41. http://dx.doi.org/10.1080/08120098908729483.

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22

Kuvaas, Berit, and German Leitchenkov. "Glaciomarine turbidite and current controlled deposits in Prydz Bay, Antarctica." Marine Geology 108, no. 3-4 (November 1992): 365–81. http://dx.doi.org/10.1016/0025-3227(92)90205-v.

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23

Vinocur, A., and I. Izaguirre. "Freshwater algae (excluding Cyanophyceae) from nine lakes and pools of Hope Bay, Antarctic Peninsula." Antarctic Science 6, no. 4 (December 1994): 483–89. http://dx.doi.org/10.1017/s0954102094000738.

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Fortyeight freshwater algae (excluding Cyanophyceae) were identified from nine lakes and pools at Hope Bay (Antarctic Peninsula). The geographic distribution in Antarctica and the ecological characteristics of the sampling sites are given for each taxa. Sixteen of them, new records for Antarctica, are described and illustrated. Among the algal classes treated here, Bacillariophyceae and Chlorophyceae constitute the most diverse groups. Most of the species found have been recorded from Antarctica, and many of them are widespread. Some degree of polymorphism was observed in Bacillariophyceae and Tribophyceae taxa.

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24

Jung, Jaewoo, Youngtak Ko, Joohan Lee, Kiho Yang, Young Kyu Park, Sunghan Kim, Heungsoo Moon, Hyoung Jun Kim, and Kyu-Cheul Yoo. "Multibeam Bathymetry and Distribution of Clay Minerals on Surface Sediments of a Small Bay in Terra Nova Bay, Antarctica." Minerals 11, no. 1 (January 13, 2021): 72. http://dx.doi.org/10.3390/min11010072.

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The second Antarctic station of South Korea was constructed at Terra Nova Bay, East Antarctica, but local seafloor morphology and clay mineralogical characteristics are still not fully understood. Its small bay is connected to a modern Campbell Glacier, cliffs, and raised beaches along the coastline. Fourteen sampling sites to collect surface sediments were chosen in the small bay for grain size and clay mineral analyses to study the sediment source and sediment-transport process with multibeam bathymetry and sub-bottom profiles. Under the dominant erosional features (streamlined feature and meltwater channel), icebergs are the major geological agent for transport and deposition of coarse-sized sediments along the edge of glaciers in summer, and thus the study area can reveal the trajectory of transport by icebergs. Glacier meltwater is an important agent to deposit the clay-sized detritus and it results from the dominance of the illite content occurring along the edge of Campbell Glacier Tongue. The high smectite content compared to Antarctic sediments may be a result of the source of the surrounding volcanic rocks around within the Melbourne Volcanic Province.

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25

Pizarro, Haydée, Irina Izaguirre, and Guillermo Tell. "Epilithic algae from a freshwater stream at Hope Bay, Antarctica." Antarctic Science 8, no. 2 (June 1996): 161–67. http://dx.doi.org/10.1017/s0954102096000235.

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Temporal and spatial variations of the epilithic phycoflora were studied in one of the largest streams at Hope Bay (Antarctic Peninsula) during the summer of 1992/93. A complete floristic inventory was made, and the relative frequencies of each algal taxon were estimated. Periphytic cumulative chlorophyll a was measured by means of artificial substrata. The stream was a typical maritime Antarctic lotic ecosystem, with evident signs of enrichment by sea-birds. Variability in discharge strongly affected the water chemistry, with the high water level periods characterized by the lowest conductivities and dissolved reactive phosphorus concentrations. Epilithic algal communities predominantly consisted of algal mats or filamentous and foliose forms of Prasiola crispa. Other dominant species were Leptolyngbya fragilis, Hydrurus foetidus, Chrysococcus cf. rufescens and Phaeogloea mucosa. Whereas P. crispa appeared more frequently near to the origin of the stream in Boeckella Lake, Chrysophyceae were better developed towards the mouth.

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26

Ahn, I. Y., Hosung Chung, Jae-Shin Kang, and Sung-Ho Kang. "Diatom composition and biomass variability in nearshore waters of Maxwell Bay, Antarctica, during the 1992/1993 austral summer." Polar Biology 17, no. 2 (January 16, 1997): 123–30. http://dx.doi.org/10.1007/s003000050114.

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27

Guglielmin, Mauro, Antoni G. Lewkowicz, Hugh M. French, and A. Strini. "Lake‐ice blisters, terra nova bay area, northern victoria land, antarctica." Geografiska Annaler: Series A, Physical Geography 91, no. 2 (June 2009): 99–111. http://dx.doi.org/10.1111/j.1468-0459.2009.00357.x.

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28

Cristofanelli, P., P. Bonasoni, F. Calzolari, U. Bonafè, C. Lanconelli, A. Lupi, G. Trivellone, V. Vitale, and B. Petkov. "Analysis of near-surface ozone variations in Terra Nova Bay, Antarctica." Antarctic Science 20, no. 4 (February 27, 2008): 415–21. http://dx.doi.org/10.1017/s0954102008001028.

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AbstractOzone concentration measurements were made during December from 2001–2005 to quantify the contributions of different processes to near-surface ozone concentrations (O3) in Terra Nova Bay, Antarctica. The average O3 concentration was 20.3 ppbv. On days characterized by high solar radiation fluxes (HSR), significantly higher concentrations of O3 (21.3 ppbv) were recorded compared to days with low solar radiation fluxes (LSR days, 16.8 ppbv). High O3 concentrations could be related to strong winds from SW–NW. Three-dimensional back-trajectories show that air from the interior of the continent could affect O3 at Terra Nova Bay. Moreover, during HSR days, high O3 concentrations were also recorded in connection with weak circulation, suggesting that emissions from the Italian base (located 2 km north) could also represent a significant source of O3. To clarify the role of local pollution in Terra Nova Bay, O3 values were also calculated using the photochemical steady state (PSS) approximation under clear sky and cloudy conditions.

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29

Flexas, Mar M., Mariano R. Arias, and Miguel A. Ojeda. "Hydrography and dynamics of Port Foster, Deception Island, Antarctica." Antarctic Science 29, no. 1 (October 3, 2016): 83–93. http://dx.doi.org/10.1017/s0954102016000444.

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AbstractThe circulation and water masses of Port Foster, Deception Island, were studied using conductivity-temperature-depth stations inside and outside the semi-enclosed bay and an array of bottom temperature sensors moored around the perimeter of the bay over two weeks in the summer of 2012. Inside Port Foster, the water column is divided into two layers separated by a temperature-forced, seasonal pycnocline at ~40–60 m. The circulation of the upper layer is in an anticlockwise direction, with mean geostrophic currents of ~0.04–0.10 ms-1. The lower layer, from ~60 m to the seabed, shows coastal-trapped waves travelling in a clockwise direction, possibly triggered by local wind gusts. Local sea ice melt in areas surrounding the underwater hot springs of Pendulum Cove appears as a fresh, warm anomaly down to 30 m.

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30

Nędzarek, Arkadiusz. "Sources, diversity and circulation of biogenic compounds in Admiralty Bay, King George Island, Antarctica." Antarctic Science 20, no. 2 (January 21, 2008): 135–45. http://dx.doi.org/10.1017/s0954102007000909.

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AbstractThis paper presents horizontal and seasonal differences in the concentrations of nitrogen and phosphorus in the surface waters of Admiralty Bay. The average annual concentrations of total nitrogen and total phosphorus were found to be 1.054 and 0.129 mg dm-3 respectively. Organic nitrogen constituted 59% of total nitrogen on average, while N-NO3- was substantially higher than N-NH4+ (0.362 and 0.062 mgN dm-3, respectively). Organic phosphorus constituted 34% of total phosphorus on average, and the mean annual concentration of reactive phosphorus was 0.085 mgP dm-3. The observed concentrations of N and P were higher in the nearshore area and lower in the central part of the Admiralty Bay basin. In explaining this account was taken of surface runoff into the bay, the decay of marine macroalgae in the tidal area and the excretion of N and P by marine animals. The concentrations of total nitrogen and total phosphorus in freshwater streams varied from 0.528–5.698 mgN dm-3 and from 0.088–1.709 mgP dm-3. In laboratory experiments, 24-hour loads of total nitrogen and total phosphorus released from the remains of macroalgae into the waters of the bay were estimated at about 6.2 tN and 10.3 tP, while the approximate quantities excreted by macrozoobenthos were 482 kgN and 48 kgP. The availability of N-NH4+ was seen to be greater in the waters of the bay than has been reported for open water in this part of the ocean and water from the Bransfield Strait had a diluting effect on the concentrations of nitrogen and phosphorus in the bay. The role of the wind in carrying mineral salts from waters of the Bay to the inland environment was also discussed.

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31

Kelsey, D. E., R. W. White, R. Powell, C. J. L. Wilson, and C. D. Quinn. "New constraints on metamorphism in the Rauer Group, Prydz Bay, east Antarctica." Journal of Metamorphic Geology 21, no. 8 (October 2003): 739–59. http://dx.doi.org/10.1046/j.1525-1314.2003.00476.x.

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32

Zhao, Y., X.-H. Liu, B. X.-C. Liu, Song L.-D. Liu, Y.-B. Wang, and P. Liu. "Pan-African Events in Prydz Bay, East Antarctica and its Inference on East Gondwana Tectonics." Gondwana Research 4, no. 4 (October 2001): 842–43. http://dx.doi.org/10.1016/s1342-937x(05)70624-9.

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33

Kaminuma, Katsutada, and Masaki Kanao. "Local Seismic Activity around the Lützow-Holm Bay, East Antarctica." Ocean and Polar Research 26, no. 3 (September 30, 2004): 523–29. http://dx.doi.org/10.4217/opr.2004.26.3.523.

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34

Lee, Kanghyun, Hendrik Gheerardyn, and Wonchoel Lee. "A new species of Orthopsyllus Brady & Robinson, 1873 (Copepoda: Harpacticoida: Orthopsyllidae) from Maxwell Bay, King George Island, Antarctica." Proceedings of the Biological Society of Washington 124, no. 2 (August 2, 2011): 84–98. http://dx.doi.org/10.2988/10-36.1.

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35

Bang, Hyun Woo, Yoon Lee, and Wonchoel Lee. "A new species of the genus Heterolaophonte Lang, 1948 (Copepoda: Harpacticoida: Laophontidae) from Maxwell Bay, King George Island, Antarctica." Proceedings of the Biological Society of Washington 124, no. 4 (December 2011): 326–40. http://dx.doi.org/10.2988/11-18.1.

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36

Cantone, G., and N. Di Pietro. "Benthic littoral Polychaeta “Sedentaria” of Terra Nova Bay (Ross Sea, Antarctica)." Antarctic Science 13, no. 1 (March 2001): 3–8. http://dx.doi.org/10.1017/s0954102001000025.

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The Polychaeta “Sedentaria” collected in Terra Nova Bay (Ross Sea) during the Second Italian Oceanographic Antarctic Expedition (1989–90) have been studied. A total of 1518 specimens have been examined and 43 species, belonging to 14 families, have been identified. A new species of Oweniidae, Myriochele antarctica and a new subspecies of Spionidae, Scolelepis eltaninae nudipalpa are described. Terebellidae was the most important family in number of species, Spionidae, Oweniidae and Orbiniidae in number of individuals. More than 60% of the species are endemic to Antarctic and sub-Antarctic areas.

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37

Tanimura, Atsushi, Takao Hoshiai, and Mistuo Fukuchi. "The life cycle strategy of the ice-associated copepod, Paralabidocera antarctica (Calanoida, Copepoda), at Syowa Station, Antarctica." Antarctic Science 8, no. 3 (September 1996): 257–66. http://dx.doi.org/10.1017/s0954102096000363.

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The vertical distribution, abundance, population structure and life cycle of the ice-associated copepod, Paralabidocera antarctica was studied in the fast ice near Syowa Station (69°00'S, 39°35'E) in the eastern part of Lützow-Holm Bay in 1970, 1975 and 1982. The results indicated that P. antarctica inhabited the ice-seawater interface throughout the year with a one year life cycle and was actually present in the sea ice for most of the year except the summer. P. antarctica overwintered as naupliar stages (NIV-NV) with slow development in sea ice during winter. P. antarctica population then developed rapidly and attained adulthood in the water just beneath the sea ice during spring-summer. P. antarctica depended entirely on ice algae for food throughout its whole life-span, suggesting that the ice-seawater interface provides favourable food conditions for P. antarctica. The slow development in naupliar stages in sea ice and short copepodite life span in the water suggest that P. antarctica may adapt its growth strategy to suit the varying fast ice/water interface environment.

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38

Richter, Martha, and M. R. A. Thomson. "First Aspidorhynchidae (Pisces: Teleostei) from Antarctica." Antarctic Science 1, no. 1 (March 1989): 57–64. http://dx.doi.org/10.1017/s0954102089000106.

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A new fossil teleost, belonging to the family Aspidorhynchidae Nicholson & Lydekker, Aspidorhynchus antarcticus sp. nov., was obtained from a block of reworked Upper Jurassic tuffaceous mudstone in the lower (Albian) part of the mid-Cretaceous Whisky Bay Formation of James Ross Island, Antarctic Peninsula. Additional material, assignable to Aspidorhynchus sp., was collected from in situ Upper Jurassic marine rocks (Nordenskjöld Formation) at Longing Gap, northern Antarctic Peninsula. Not only is this the first reported occurrence of the family from Antarctica, it is also the first unequivocal record of Aspidorhynchus outside Europe; prior to this discovery, the genus had only been reported with certainty in marine deposits from the Middle Jurassic to Lower Cretaceous of England, France and Germany. This is the earliest neopterygian fish so far recovered from marine rocks in the Antarctic.

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39

Nogi, Yoshifumi, Wilfried Jokat, Kazuya Kitada, and Daniel Steinhage. "Geological structures inferred from airborne geophysical surveys around Lützow-Holm Bay, East Antarctica." Precambrian Research 234 (September 2013): 279–87. http://dx.doi.org/10.1016/j.precamres.2013.02.008.

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40

McClatchie, S. "Food-limited growth of Euphausia superba in Admiralty Bay, South Shetland Islands, Antarctica." Continental Shelf Research 8, no. 4 (April 1988): 329–45. http://dx.doi.org/10.1016/0278-4343(88)90007-6.

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TAYLOR, FIONA, and AMY LEVENTER. "Late Quaternary palaeoenvironments in Prydz Bay, East Antarctica: interpretations from marine diatoms." Antarctic Science 15, no. 4 (December 2003): 512–21. http://dx.doi.org/10.1017/s0954102003001639.

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Fossil diatom-bearing marine sediment cores recovered from Prydz Channel, Prydz Bay, record episodes of glacial advance and retreat in the bay. Diatom frustules are abundant, well preserved, and the species composition is diverse in two biogenic sediment units composed of siliceous diatom ooze (SMO-1 and SMO-2). Between SMO-1 and SMO-2 a terrigenous unit (T) is present, composed of muddy diamicton and sandy silty clay, which contains poorly preserved rare diatoms. The SMO units are interpreted to represent an open marine setting with seasonal sea ice cover; the T unit is interpreted to represent glacial ice expansion from the Amery Ice Shelf over the site. Based on an age model developed previously for other cores from Prydz Channel with analogous stratigraphies, we interpret our record to be late Quaternary through Holocene in age. The T unit records the Last Glacial Maximum (LGM) in Prydz Bay; the SMO-1 and SMO-2 units record interstadial episodes that are post- and pre-LGM respectively. Extinct diatom taxa in the T and SMO-2 units indicate reworked sediment sourced from two different-aged deposits. Our results provide both a new interpretation of late Quaternary deposition in Prydz Channel and support for previous studies in this region.

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Jakobsson, Martin, John B. Anderson, Frank O. Nitsche, Julian A. Dowdeswell, Richard Gyllencreutz, Nina Kirchner, Rezwan Mohammad, et al. "Geological record of ice shelf break-up and grounding line retreat, Pine Island Bay, West Antarctica." Geology 39, no. 7 (July 2011): 691–94. http://dx.doi.org/10.1130/g32153.1.

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43

Lisker, Frank, Christopher J. L. Wilson, and Helen J. Gibson. "Thermal history of the Vestfold Hills (East Antarctica) between Lambert rifting and Gondwana break-up, evidence from apatite fission track data." Antarctic Science 19, no. 1 (February 28, 2007): 97–106. http://dx.doi.org/10.1017/s0954102007000144.

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Analysis of five basement samples from the Vestfold Hills (East Antarctica) reveals pooled apatite fission track (FT) ages ranging from 188 to 264 Ma and mean lengths of 13.7 to 14.9 μm. Quantitative thermal histories derived from these data give consistent results indicating onset of cooling/denudation began sometime prior to 240 Ma, with final cooling below 105°–125°C occurring between 240 and 220 Ma (Triassic). A Cretaceous denudation phase can be inferred from the sedimentary record of the Prydz Bay offshore the Vestfold Hills. The two denudational episodes are likely associated with Palaeozoic large-scale rifting processes that led to the formation of the adjacent Lambert Graben, and to the Cretaceous Gondwana break-up between Antarctica and India. Subsequent evolution of the East Antarctic passive continental margin likely occurred throughout the Cenozoic based on the depositional record in Prydz Bay and constraints (though tentative) from FT data.

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Il Yoon, Ho, Myung Woo Han, Byong-Kwon Park, Jae-Kyung Oh, and Soon-Keun Chang. "Glaciomarine sedimentation and palaeo-glacial setting of Maxwell Bay and its tributary embayment, Marian Cove, South Shetland Islands, West Antarctica." Marine Geology 140, no. 3-4 (August 1997): 265–82. http://dx.doi.org/10.1016/s0025-3227(97)00028-5.

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Baroni, Carlo, and Giuseppe Orombelli. "Holocene glacier variations in the Terra Nova Bay area (Victoria Land, Antarctica)." Antarctic Science 6, no. 4 (December 1994): 497–505. http://dx.doi.org/10.1017/s0954102094000751.

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Information on Holocene glacier variations in Antarctica is limited and sometimes contradictory. However, if the behaviour of the glaciers during the recent past can be clarified, their sensitivity to climatic changes can be evaluated and their contribution to the sea level variation may be predicted. Through the study of local glaciers and floating ice shelves in the Terra Nova Bay area, new information has been gathered. Between 7500 and 5000 yr B.P., after the glacial retreat which followed the Last Glacial Maximum, the Nansen Ice Sheet and the Hells Gate ice shelf were a few kilometres less extensive than they are now. During the second half of the Holocene, both the local glaciers and the ice shelves advanced to positions that were more extensive than their present ones, although not all the variations are adequately dated. A retreat phase of the Edmonson Point glacier occurred during late Middle Ages between 920–1050 A.D. and 1270–1400 A.D. as documented by ten 14C dates obtained from shells in ice-cored moraines. A subsequent advance occurred after the 15th century in a period corresponding to the Little Ice Age.

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Sañé, E., E. Isla, A. M. Pruski, M. A. Bárcena, G. Vétion, and D. DeMaster. "Diatom valve distribution and sedimentary fatty acid composition in Larsen Bay, Eastern Antarctica Peninsula." Continental Shelf Research 31, no. 11 (August 2011): 1161–68. http://dx.doi.org/10.1016/j.csr.2011.04.002.

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Ziegler, A. F., M. Cape, Ø. Lundesgaard, and C. R. Smith. "Intense deposition and rapid processing of seafloor phytodetritus in a glaciomarine fjord, Andvord Bay (Antarctica)." Progress in Oceanography 187 (August 2020): 102413. http://dx.doi.org/10.1016/j.pocean.2020.102413.

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SABBATINI, ANNA, JAN PAWLOWSKI, ANDREW J. GOODAY, STEFANO PIRAINO, SAMUEL S. BOWSER, CATERINA MORIGI, and ALESSANDRA NEGRI. "Vellaria zucchellii sp. nov. a new monothalamous foraminifer from Terra Nova Bay, Antarctica." Antarctic Science 16, no. 3 (September 2004): 307–12. http://dx.doi.org/10.1017/s0954102004002081.

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Vellaria zucchellii sp. nov. is described from coastal sediment samples from Terra Nova Bay (Ross Sea, Antarctica, 74°40′28.1″S, 164°04′11.6″E, Tethys Bay, 25 m depth). This organic-walled monothalamous (single chambered) foraminifer is characterized by a wide, prominent aperture that facilitates attachment to larger particles (small sand grains or other foraminiferal shells). It shares this feature with the two other known species of Vellaria, both of which were described from an Indian estuary. Phylogenetic analysis of small subunit rRNA gene sequences suggest that V. zucchellii is related to the genus Psammophaga. However, the new species lacks the mineral grain inclusions that are characteristic of Psammophaga. The description of this new organic-walled monothalamous foraminiferal species further documents the high taxonomic diversity of these delicate and abundant protists in the polar benthic communities.

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Mortimer, N., J. M. Palin, W. J. Dunlap, and F. Hauff. "Extent of the Ross Orogen in Antarctica: new data from DSDP 270 and Iselin Bank." Antarctic Science 23, no. 3 (February 8, 2011): 297–306. http://dx.doi.org/10.1017/s0954102010000969.

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AbstractThe Ross Sea is bordered by the Late Precambrian–Cambrian Ross–Delamerian Orogen of East Antarctica and the more Pacific-ward Ordovician–Silurian Lachlan–Tuhua–Robertson Bay–Swanson Orogen. A calcsilicate gneiss from Deep Sea Drilling Project 270 drill hole in the central Ross Sea, Antarctica, gives a U-Pb titanite age of 437 ± 6 Ma (2σ). This age of high-grade metamorphism is too young for typical Ross Orogen. Based on this age, and on lithology, we propose a provisional correlation with the Early Palaeozoic Lachlan–Tuhua–Robertson Bay–Swanson Orogen, and possibly the Bowers Terrane of northern Victoria Land. A metamorphosed porphyritic rhyolite dredged from the Iselin Bank, northern Ross Sea, gives a U-Pb zircon age of 545 ± 32 Ma (2σ). The U-Pb age, petrochemistry, Ar-Ar K-feldspar dating, and Sr and Nd isotopic ratios indicate a correlation with Late Proterozoic–Cambrian igneous protoliths of the Ross Orogen. If the Iselin Bank rhyolite is not ice-rafted debris, then it represents a further intriguing occurrence of Ross basement found outside the main Ross–Delamerian Orogen.

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Rhee, Hyun Hee, Min Kyung Lee, Yeong Bae Seong, Jae Il Lee, Kyu-Cheul Yoo, Jamey Stutz, and Byung Yong Yu. "Quaternary ice thinning of David Glacier in the Terra Nova Bay region, Antarctica." Quaternary Geochronology 67 (February 2022): 101233. http://dx.doi.org/10.1016/j.quageo.2021.101233.

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