Sedimentary Features of a Tertiary Lahar on King George Island, South Shetland Islands, West Antarctica

• Autorzy: Birkenmajer K. , Gradziński R. , Porębski Sz.
• Języki publikacji: EN

Abstrakty

EN

A coarse diamictite (agglomerate) up to 34 m thick consisting mainly of angular basaltic lava clasts occurs within Tertiary terrestrial stratiform volcanic succession at Admiralty Bay, King George Island (South Shetland Islands, West Antarctica). At some sites, it interfingers with coeval basaltic lava flows. The coarse diamictite is interpreted as a lahar developed from low-maturity debris flows triggered either by volcanic eruptions or by less of stability by water-saturated weathering covers. Diamictites with predominantly rounded clasts, and sandstone -the products of short-lived short-distance reworking and sorting by running water, are subordinate.

Słowa kluczowe

EN

Tertiary; lahar; sedimentary features; West Antarctica

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Earth Sciences
• Rocznik: 2002
• Tom: Vol. 50, nr 1
• Strony: 81--97
• Opis fizyczny: Bibliogr. 17 poz.

Twórcy

autor

Birkenmajer K.

autor

Gradziński R.

autor

Porębski Sz.

• Institute of Geological Sciences, Kraków, Poland