Evolution of the Pacific margin of the northern Antarctic Peninsula: an overview

  title={Evolution of the Pacific margin of the northern Antarctic Peninsula: an overview},
  author={Krzysztof Birkenmajer},
  journal={Geologische Rundschau},
The sector of the northern Antarctic Peninsula between the Tula and Shackleton Fracture Zones provides evidence for the subduction of south-east Pacific oceanic crust under Antarctic continental crust during Late Mesozoic through Miocene times. The pre-subduction depositional history of this sector includes the formation of a marine siliciclastic turbidite wedge (?Permian-Triassic) deposited in a marginal basin setting. It was folded and thrust retroarc before the Middle Jurassic to form the… 

Chapter 3.1b Antarctic Peninsula and South Shetland Islands: petrology

Abstract The Antarctic Peninsula contains a record of continental-margin volcanism extending from Jurassic to Recent times. Subduction of the Pacific oceanic lithosphere beneath the continental

Magmatic evolution of the South Shetland Islands, Antarctica, and implications for continental crust formation

Lavas from the South Shetland Islands volcanic arc (northern Antarctic Peninsula) have been investigated in order to determine the age, petrogenesis and compositional evolution of a long-lived

Geological research of the Polish Geodynamic Expeditions to West Antarctica, 1984-1991: Antarctic Peninsula and adjacent islands

During the Polish Geodynamic Expeditions to West Antarctica, 1984-1991, led by A. Guterch, the scientific research of the geological group (leader K. Birkenmajer) included stratigraphic,

Polish Geodynamic Expeditions - seismic structure of West Antarctica

During the Polish Antarctic Geodynamic Expeditions, 1979-91, a wide geophy­ sical and geological programme was performed in the transition zone between the Drake and South Shetland microplates and

Magmatic dyke systems of the South Shetland Islands volcanic arc (West Antarctica): reflections of the geodynamic history

The Antarctic Peninsula forms part of a magmatic arc at least since Jurassic times. Magmatic dykes are essential elements of such arcs and intrude along zones of instability. In contrast to other

New geological interpretation of multi-channel seismic profiles from the Pacific Margin of the Antarctic Peninsula

: The Polish Geophysical Expedition to West Antarctica in 1979–1980 was carried out by the Institute of Geophysics, Polish Academy of Sciences. Beside deep seismic soundings, 12 multi-channel seismic

New fossil woods from lower Cenozoic volcano‐sedimentary rocks of the Fildes Peninsula, King George Island, and the implications for the trans‐Antarctic Peninsula Eocene climatic gradient

Ten embedded fossil logs sampled in situ from the middle Eocene volcano‐sedimentary rocks close to Suffield Point in the Fildes Peninsula, King George Island, Antarctica, are assigned to



A complete arc-trench system recognized in Gondwana sequences of the Antarctic Peninsula region

Summary Prior to Late Triassic–Early Jurassic times, the geological history of the Antarctic Peninsula region was dominated almost entirely by Gondwana sequences that together comprised a major

Structural geology and geochronology of subduction complexes along the margin of Gondwanaland: New data from the Antarctic Peninsula and southernmost Andes

Subduction complexes along the Andean margin in central and southern Chile yield mid-Paleozoic to lower Mesozoic ages, yet they crop out within 100 km of the modern trench that shows evidence of

The Cenozoic subduction history of the Pacific margin of the Antarctic Peninsula: ridge crest–trench interactions

  • P. Barker
  • Geology
    Journal of the Geological Society
  • 1982
New magnetic anomaly identifications W of the Shackleton Fracture Zone show 5 spreading sections, separated by fracture zones. In the 2 most southerly, the ridge crest collided with a trench at the

Lithospheric transect Antarctic Peninsula - South Shetland Islands, West Antarctica

The lithospheric transect South Shetland Islands (SSI) — Antarctic Penin­ sula (AP) includes: the Shetland Trench (subductional) and the adjacent portion of the SE Pacific oceanic crust; the South

Volcanism in the Bransfield Strait, Antarctica

A geochemical study of magmatism associated with the initial stages of back-arc spreading

Bransfield Strait is a narrow basin separating the South Shetland Islands from the Antarctic Peninsula and is attributed to recent back-arc extension behind the South Shetland volcanic arc. The

Rb-Sr geochronology of Graham Land, Antarctica

Thirty-five new Rb-Sr whole-rock and mineral isochrons are reported for igneous rocks from Graham Land. Magmatism was essentially continuous but peaks of activity occurred in early Jurassic, early

Volcanic succession at Deception Island, West Antarctica: A revised lithostratigraphic standard

New lithostratigraphic Standard is proposed for the Quaternary volcanic succession at Deception Island, South Shetland Islands (West Antarctica). The succession is subdivided into the older Foster

Petrological and geochemical constraints on the genesis of Mesozoic–Cenozoic magmatism of King George Island, South Shetland Islands, Antarctica

Petrological and geochemical data are reported for a series of Late Cretaceous-Middle Miocene volcanic, hypabyssal and intrusive rocks from King George Island (KGI) and from nearby Ridley Island,