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Fragmented bivalve (mainly Mya truncata) and Balanus shells were collected at 21-35 m a.s.l. from terminal/marginal moraine, and at 46-65 m a.s.l. from morainic dirt cones and eskers at Werenskioldbreen, south Spitsbergen. They yielded radiocarbon ages of 26,600 š 1400 years B.P. (Late Pleistocene = Vistulian Glaciation), and 10,660 š 220 - 10.500 š 160 years B.P. (Pleistocene/Holocene transition:...
This paper gives an overview of principal sedimentological and structural features observed within the uppermost Eocene, thick-bedded turbidites of the Krynica subunit, Magura Nappe, that are exposed at Klikuszowa in a zone of change of the dominant orientation of thrusts and folds, from NE-SW in the west, to W-E in the east. The succession exposed in the Klikuszowa quarry represents the middle-fan...
Based on brachiopods represented mainly by the genus Ungula, the so-called "Obolus sandstones", known from numerous boreholes in north-eastern Poland, are included to the Upper Cambrian--?lowermost Ordovician. These sandstones are here formally distinguished as the Krzyże Formation. A clayey-silty complex containing graptolites of the Rhabdinopora group is here formally distinguished as...
A problem of estimation of the prediction efficiency parameters, namely: the success rate and the alarm rate, under uncertain identification of prediction targets in a test data set is considered. Due to the exponential distribution of earthquake magnitude, the problem is particularly significant in magnitude threshold based earthquake prediction. It has been shown that a proper approach to the problem...
Conodont described by the present author form chalcedonites of the Zbilutka Member, the lower unit of the Międzygórz Formation in the Holy Cross (Góry Świętokrzyskie) Mts, Poland, indicate an Upper Tremadocian age of this member. The conodont assemblage represents the Drepanoistodus deltifer pristinus Subzone which is characteristic for the Late Tremadocian Varangu stage in Estonia. The conodont dating...
The succession of Quaternary deposits and morphological forms at Potter Peninsula. Maxwell Bay, King George Island (South Shetland Islands, West Antarctica) includes: (1) raised residual gravel and remains of marine abrasion surfaces, 97-118 m a.s.l. (Pleistocene); (2) marine (fjord-bottom) silty and sandy beds with bivalve shells (radiocarbon-dated at early Holocene); (3) highest raised marine terraces,...
Timber of spruce, a species widely spread in Europe and Asia, has been a basis of several regional dendrochronological standards. However, in Poland there is no long spruce standard of regional extent. The research underaken at Dendrochronological Laboratory, University of Mining and Metallurgy in Cracow, is the first step towards the elaboration of such a scale for the area of southern Poland. The...
Two well-preserved whale bones, probably belonging to Finnback Whale (Balaenoptera physalus) where collected near remnants of an early 17th century Dutch/English whaling station at Gashamna, Hornsund, south Spitsbergen. They yielded three radiocarbon ages of 620+65 yrs B.P. and 670+75 and 675+80 years B.P. Corrections for the reservoir age of seawater, based on the ages of living marine shells, were...
This paper presents results of preliminary geochemical studies of ultrabasic rocks occurring in the eastern part of the metamorphic envelope of the Karkonosze granite intrusion. They fom two small, stock-shaped bodies within: 1) amphibolites (locality: popiel Hill, nearby Janowice Wielkie) and (2) amongst greenschists (locality: Niedamirów). obtained results indicate that theymay represent subduction-related...
Some samples of belemnite rostra of the Middle-Upper Jurassic age, analysed for strontium isotopic composition were preliminary examined by cathodoluminescence technique (CTL). CTL detected in some samples diagenetic changes to a different degree - from low to almost completely recrystalized by diagenetic processes. Changed and non-changed parts of rostra, samples of matrix (part of rock surrounding...
Stratiform basaltic/basaltic-andesite lavas (a minimum 50m thick), with red agglomerate and tuff interlayers (up to 10m thick), are the oldest rocks recognized at Potter Peninsula, King George Island (South Shetland Islands, West Antarctica). They resemble volcanic-volcaniclastic rocks of the Paradise Cove Group (King George Island Supergroup) from Admiralty Bay, King George Island, K-Ar-dated at...
Alaska is composed of the Chukotka-Alaska terrane and of accreted terranes supposedly originated from the disintegrated hypothetical Pacific Ocean continent, and rotated counter-clockwise by spreading of the Amerasian and Eurasian basin, and possibly by spreading of the Atlantic Ocean. The contact of the American and Siberian plates is controversial, however the South Aniuy suture is considered, so...
The gastropods Ceratopea unguis Yochelson et Bridge and C. buttsi Yochelson et Brodge have been determined from their opercula collected from the Nigerbreen Limestone Formation at Tsjebysjovfjellet, Sorkapp Land, south Spitsbergen. They confirm an Early Ordovician (Late Canadian) age of the formation.
Three Lower Tertiary volcanic complexes occur at the Turred Point-Mersey Spit promotory on King George Island (South Shetland Islands, West Antarctica. The first complexis represented by a pile of thick andesitic-basaltic lava flows attributed to the Mazurek Point Formation. The second complex consist of andesite breccias which from vertical cutting the lavas. The third complex is represented by vertical...
The rock-units of group rank occur at Barton and Weaver penisulas, King George Island (South Shetland Islands, West Antarctica): the Cardozo Cove GRoup (the oldest), the Wegger Peak Group, and the Admiralty Bay Group. The Cardozo Cove Group (CCG) represents a stratiform volcanic-volcaniclastic complex, predominantly andesite and basaltic-andesite lavas, alernating with tuffs and volcanic agglomerates...
Clay -mineral investigations were carries out on Jurassic marine black shale samples of the Janusfjellet Subgroup (Upper Bathonian-Hauterivian) collected from four field sections at Van Keulenfjordrn and Isfjorden, Spitsbergen. Based on the presence or absence of kaolonite in the Jurassic parts of the stratigraphic columns studied, three subunits have been distinguished: (i) the kaolinite- bearing...
Four major fault-boundedc tectonic blocks are recognized in the Gerlache Strait area, West Antarctica: (A) the Danco Coast Block; (B) the Brabant Island Block; (C) the Neumayer Channel Block; and (D) the Anvers-Melchior Islands Block. The blocks differ from each other in the succession and age of rocks: (A) metasediments of the Trinity Penisula Group (TPZG:? Upper Permian-Triassic). Uncorfarmably...
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