Antarctica (eBook)

Preface 5
Acknowledgments 7
Contents 10
List of Contributors 15
Theme 1 History of Antarctic Research 26
The Road to Gondwana via the Early SCAR Symposia 27
Exploring the Unknown: History of the First German South Polar Expedition 1901– 1903 31
Theme 2 Antarctica – The Old Core 36
Characteristics of Metamorphosed Banded Iron Formation and Its Relation to the Magnetic Anomaly in the Mt. Riiser- Larsen Area, Amundsen Bay, Enderby Land, Antarctica 38
Experimental Constraints on the Decompressional P-T Paths of Rundvågshetta Granulites, Lützow-Holm Complex, East Antarctica 46
Sapphirine – Orthopyroxene – Garnet Granulite from Schirmacher Hills, Central Dronning Maud Land 60
Genesis of Ferropotassic A-Type Granitoids of Mühlig- Hofmannfjella, Central Dronning Maud Land, East Antarctica 68
Late Pan- African Fluid Infiltration in the Mühlig- Hofmann- and Filchnerfjella of Central Dronning Maud Land, East Antarctica 78
Electron Microprobe (EMP) Dating on Monazite from Forefinger Point Granulites, East Antarctica: Implication for Pan- African Overprint 86
Tectonic Subdivision of the Prince Charles Mountains: A Review of Geologic and Isotopic Data 92
Crustal Provinces of the Prince Charles Mountains Region and Surrounding Areas in the Light of Aeromagnetic Data 105
Magnetic Anomalies of the Grove Mountains Region and Their Geological Significance 117
Theme 3 The Continent Beneath the Ice 128
ADMAP – A Digital Magnetic Anomaly Map of the Antarctic 130
Identifying Major Sedimentary Basins Beneath the West Antarctic Ice Sheet from Aeromagnetic Data Analysis 138
Bedrock Plateaus within the Ross Embayment and beneath the West Antarctic Ice Sheet, Formed by Marine Erosion in Late Tertiary Time 143
Inversion of Airborne Gravity Data Acquired over Subglacial Lakes in East Antarctica 149
Russian Geophysical Studies of Lake Vostok, Central East Antarctica 154
Morphology of the Subglacial Bed Relief of Lake Vostok Basin Area ( Central East Antarctica) Based on RES and Seismic Data 160
Deep Reflection Imaging beneath the Mizuho Plateau, East Antarctica, by SEAL- 2002 Seismic Experiment 166
Seismic Anisotropy beneath Northern Victoria Land from SKS Splitting Analysis 173
Theme 4 Gondwana Margins in Antarctica 180
Scouting Craton’s Edge in Paleo-Pacific Gondwana 181
The Matusevich Fracture Zone in Oates Land, East Antarctica 190
Tectonic Model for Development of the Byrd Glacier Discontinuity and Surrounding Regions of the Transantarctic Mountains during the Neoproterozoic – Early Paleozoic 196
Depositional Environments of the Byrd Group, Byrd Glacier Area: A Cambrian Record of Sedimentation, Tectonism, and Magmatism 206
Late-Ross Structures in the Wilson Terrane in the Rennick Glacier Area ( Northern Victoria Land, Antarctica) 210
Style of Uplift of Paleozoic Terranes in Northern Victoria Land, Antarctica: Evidence from K- Ar Age Patterns 220
Theme 5 Antarctic Peninsula Active Margin Tectonics 229
Patagonia – Antarctica Connections before Gondwana Break- Up 230
Moho Depth along the Antarctic Peninsula and Crustal Structure across the Landward Projection of the Hero Fracture Zone 241
Crustal Thinning and the Development of Deep Depressions at the Scotia- Antarctic Plate Boundary ( Southern Margin of Discovery Bank, Antarctica) 249
Bransfield Basin Tectonic Evolution 254
The Sedimentary Sequences of Hurd Peninsula, Livingston Island, South Shetland Islands: Part of the Late Jurassic – Cretaceous Depositional History of the Antarctic Peninsula 260
Regional Structures and Geodynamic Evolution of North Greenwich ( Fort Williams Point) and Dee Islands, South Shetland Islands 265
The Eocene Volcaniclastic Sejong Formation, Barton Peninsula, King George Island, Antarctica: Evolving Arc Volcanism from Precursory Fire Fountaining to Vulcanian Eruptions 271
Elephant Island Recent Tectonics in the Framework of the Scotia- Antarctic- South Shetland Block Triple Junction ( NE Antarctic Peninsula) 281
Tectonics and Geomorphology of Elephant Island, South Shetland Islands 287
Geodynamical Studies on Deception Island: DECVOL and GEODEC Projects 292
Theme 6 Antarctic Rift Tectonics 297
Mawson Breccias Intrude Beacon Strata at Allan Hills, South Victoria Land: Regional Implications 298
What Supports the Marie Byrd Land Dome? An Evaluation of Potential Uplift Mechanisms in a Continental Rift System 306
A Multi-Phase Rifting Model for the Victoria Land Basin, Western Ross Sea 310
Rift History of the Western Victoria Land Basin: A new Perspective Based on Integration of Cores with Seismic Reflection Data 316
Constraints on the Timing of Extension in the Northern Basin, Ross Sea 326
The Structure of the Continental Margin off Wilkes Land and Terre Adélie Coast, East Antarctica 334
Post-Rift Continental Slope and Rise Sediments from 38° E to 164° E, East Antarctica 348
Theme 7 Antarctic Neotectonics, Observatories and Data Bases 355
On Seismic Strain-Release within the Antarctic Plate 356
Vertical Crustal Deformation in Dronning Maud Land, Antarctica: Observation versus Model Prediction 361
Seismic Activity Associated with Surface Environmental Changes of the Earth System, around Syowa Station, East Antarctica 365
Geodynamic Features and Density Structure of the Earth’s Interior of the Antarctic and Surrounded Regions with the Gravimetric Tomography Method 373
Some Recent Characteristics of Geomagnetic Secular Variations in Antarctica 380
Topographic and Geodetic Research by GPS, Echosounding and ERS Altimetric, and SAR Interferometric Surveys during Ukrainian Antarctic Expeditions in the West Antarctic 385
Geodetic Research on Deception Island 393
The Multidisciplinary Scientific Information Support System ( SIMAC) for Deception Island 399
Archiving and Distributing Earth-Science Data with the PANGAEA Information System 405
Theme 8 Sediments as Indicators for Antarctic Environment and Climate 409
Tracing Marine Processes in the Southern Ocean by Means of Naturally Occurring Radionuclides 410
Normalized Remanence in Sediments from Offshore Wilkes Land, East Antarctica 415
Grain Size, Mineralogy and Geochemistry in Late Quaternary Sediments from the Western Ross Sea outer Slope as Proxies for Climate Changes 423
Potential of the Scotia Sea Region for Determining the Onset and Development of the Antarctic Circumpolar Current 433
Seismic Stratigraphy of Miocene to Recent Sedimentary Deposits in the Central Scotia Sea and Northern Weddell Sea: Influence of Bottom Flows ( Antarctica) 440
Limnology and Sedimentary Record of Radok Lake, Amery Oasis, East Antarctica 446
New Data Related to Holocene Landform Development and Climatic Change from James Ross Island, Antarctic Peninsula 454
Surface Movement of Stone-Banked Lobes and Terraces on Rink Crags Plateau, James Ross Island, Antarctic Peninsula 459
Soil Characteristics along a Transect on Raised Marine Surfaces on Byers Peninsula, Livingston Island, South Shetland Islands 464
Index 471