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In 1987/1988 Die Expedition ANTARKTIS-VI mit FS ,,Polarsternu 1987/1988 The Expedition ANTARKTIS-VI of RV "Polarstern" in 1987/1988 Herausgegeben von Dieter Karl Füttere mit Beiträge der Fahrtteilnehmer Ber. Polarforsch. 58 (1988) ISSN 0176-5027 Inhalt Einführun.................................................................................... Introduction................................................................................... 1. Fahrtabschnitt ANT-V111 (Bremerhaven - Santander - Rio de Janeiro- Rio Grande do Sul 1. 1 Zusammenfassung und Fahrtverlauf...................................... 1.2 Ozonverteilung in der Stratosphär......................................... 2 . Fahrtabschnitt ANT-VIIl2 (Rio Grande do Sul - Ushuaia) (Fahrtleiter: D. Sahrhage) 2.1 Zusammenfassung und Fahrtverlauf...................................... 2.2 Summary and itinerary ............................................................... 2.3 Wetterablauf und Wetterberatuno............................................ 2.4 Geologische Untersuchungen an Land................................... 2.4.1 Das Grundgebirge und Deckgebirge im Umkreis der Station Esperanza und Trinity Hut .......................................................... 2.4.2 Geologie einzelner Nunataker der Trinity Peninsula ............. 2.4.3 Geochronologische Korrelation der fossilführende oberju- rassischen Nordenskjoeld-Formation mit Zirkonen begleitender Tuffe (Longing Gap)...................................................................... 31 2.4.4 Sonstige besuchte Aufschlüss.................................................. 32 2.4.5 Hinterland von Faraday (Argentine Islands)............................. 32 2.4.6 SüShetland Inseln beiderseits des Antarctic Sound und in der Elephant Island Group............................................................ 32 2.5 Physiogeographische, geomorphologische und pedologische Untersuchungen............................................................................. 34 2.5.1 Periglaziale und perimarine Reliefentwicklung ........................ 34 2.5.2 Daten zur Modellierung der kryogenen Hangentwicklung ..... 38 2.5.3 Physikalische und chemische Verwitterung sowie kryogene Bodenbildung.................................................................................. 38 2.6 Holocene glacial history and climate variation on the Antarctic Peninsula.......................................................................................... 40 2.7 Biologische Forschungen auf See ............................................... 41 2.7.1 Ozeanographie................................................................................. 41 2.7.2 Krilluntersuchungen......................................................................... 43 2.7.3 Pelagische Ostracoden................................................................... 45 2.7.4 Fischereibiologische Untersuchungen an den Fischbestände um Elephant Island.......................................................................... 45 2.7.5 Der Nährstoffstatu planktischer Algen ........................................ 48 2.7.6 Antarktisches Benthos..................................................................... 50 2.7.7 Verbreitung und Biologie benthischer Amphipoden .................. 51 2.7.8 Nematoden der Meiofauna.............................................................. 52 2.8 Marine Geologie................................................................................ 53 2.8.1 Sedimentprobennahme................................................................... 53 2.8.2 Beschreibung und Beprobung der Schwerelotkerne ................. 54 2.8.3 Verbreitung benthischer Foraminiferen ........................................ 55 2.8.4 Adsorption und Partikelfluà in der Wassersäul......................... 56 2.9 Marin-geophysikalische Untersuchungen .................................... 58 2.. 9.1 Der zeitliche Ablauf der Messungen .............................................. 58 2.9.2 Vorläufig Ergebnisse..................................................................... 61 2.9.3 Ausblick ...............................................................................................67 2.1 0 Untersuchung niedermolekularer, halogenierter Kohlenwasser- stoffe in Luft und Meerwasser......................................................... 67 2.1 1 StationslisteIStation List ..................................................................69 3. Fahrtabschnitt ANT-VI/3 (Ushuaia .Kapstadt) (Fahrtleiter : D.K. Fütterer Zusammenfassung und Fahrtverlauf............................................ 79 Wetterablauf und Tätigkeider Bordwetterwarte ......................... 91 Zoobenthos auf dem antarktischen Schelf .................................. 93 Benthos-Probennahme und erste Ergebnisse ........................... 94 Direktbeobachtungen an benthischen Besiedlungs- strukturen........................................................................................... 100 Lebendhälterun im Laborcontainer ............................................105 Marin-geowissenschaftliche Arbeiten ..........................................107 Probennahme und Gerät.............................................................. 107 Sud-Orkney-Block............................................................................ 109 Queen Maud Rise............................................................................. 112 Alfred-Wegener- Canyon................................................................ 115 "Deutschland Canyon".................................................................... 118 Filchner Rinne................................................................................... 120 Antarktische Konvergenz .Agulhas Becken ...............................123 Frühdiagenesvon Silikaten im Weddellmeer ...........................124 Niederfrequente Sedimentechographie ......................................130 Positionsbestirnmung mit INDAS und GPS................................. 131 Bathymetrische Vermessung mit dem Fächersona SEABEAM und dem Schelfrandecholot NBS ............................ 132 Geostatistische Verfahren im SEABEAM-post-processing ...... 133 Seegravimetrie und marine Magnetik ......................................... 139 Verankerungsarbeiten und Sedimentfallen ............................... 142 Das Sommerprogramm auf der Georg-von-Neumayer- Station ................................................................................................148 Reflexionsseismische Untersuchungen auf dem Ekström Schelfeis ............................................................................................148 Glazialgeodätisch Arbeiten auf dem Ekstrom-Schelfeis ........ 152 Anorganische Spurenstoffe in Luft- und Schneeproben .......... 158 Das Geophysikalische Observatorium .........................................159 Untersuchungen atmosphärischeAitkenpartikel an der Georg-von-Neumayer-Station....................................................... 162 Hydrophonaufnahrnen vom Lautton der Weddellrobben in der Atka-Bucht.................................................................................. 163 Bestandszählunge an den Kaiserpinguinkolonien in der Atka-Bucht......................................................................................... 164 Die geowissenschaftliche Expedition in die Kottasberget Heimefrontfjella und die KraulbergeNestfjella.......................... 165 Anliegen und Ziele der Expedition .............................................. 165 The Swedish participation in the expedition ............................ 167 Logistic experiences...................................................................... 168 Strukturgeologische Untersuchungen an mylonitischen Gesteinen in den Kottasbergen und Sivorgfjella..................... 171 Erzpetrographische Untersuchungen........................................ 173 Sedimentology. stratigraphy and paleomagnetism in the Heimefrontfjella Range.................................................................. 174 Fazielle Untersuchungen in den jungpaläozoische Sedimenten der Heimefrontfjella und der Kraulberge ............. 180 Glazialmorphologische Untersuchungen ................................... 183 Glaciological and geomorphological studies of Scharffen- bergbotnen........................................................................................ 186 Radio-Echo soundings between Basen and Fossilryggen ...... 193 Literatur.............................................................................................. 194 Geologische Expedition in die Shackleton Range (GEISHA). 196 Einführun in die Geologie der Shackleton Range und Zielsetzung von GEISHA ................................................................196 Logistischer Rahmen....................................................................... 199 Flugzeugoperationen...................................................................... 203 Helikoptereinsätz in den Bergen................................................ 204 Petrologie des kristallinen Grundgebirges der südliche und nordwestlichen Shackleton Range ..............................................205 Strukturgeologie der Shackleton Range .................................... 208 Stratigraphie und Fazies der sedimentäre Serien in der Shackleton Range .......................................................................... 218 Basische Gäng in der Shackleton Range................................ 222 Radiometrische Untersuchungen in der Shackleton Range
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