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Tytuł:
Nowe obiekty geoturystyczne na południowym Podlasiu
New geotourist objects in Southern Podlasie
Autorzy:
Górska-Zabielska, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2076051.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ogrody petrograficzne
miejsca przyjazne rowerzystom
geoturystyka
południowe Podlasie
petrographic gardens
biker-friendly spaces
geotourism
southern Podlasie
Opis:
In 2018 the Łuków commune in southern Podlasie became enriched by eight small lapidaries as a result of local self-government initiative. They play a didactic and aesthetic function of biker-friendly spaces along bicyce routes. The article discusses 25 erratic boulders, indicating their Scandinavian provenance and micro-morphology features that are a record ofenvironments in which the erratic boulders were staying during their transport. A special attention has been given to the geotourist significance of these stone objects.
Źródło:
Przegląd Geologiczny; 2020, 68, 2; 91--99
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Ordovician bryozoa from the Podlasie-Brest Depression (Belarussian part): suborders Ceramoporina, Esthonioporina, Amplexoporina, Halloporina
Autorzy:
Pushkin, V.
Powiązania:
https://bibliotekanauki.pl/articles/2059884.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Podlasie-Brest Depression
Ordovician
Bryozoa
taxonomy
biogeography
Opis:
Bryozoa (23 species) from many boreholes in the Belarussian part of the Podlasie-Brest Depression and some adjacent areas of the East European Platform are described. Only bryozoa from the orders Cystoporida (suborder Ceramoporina) and Trepostomida (suborders Esthonioporina, Amplexoporina and Halloporina) are represented. Four species and one family are described as new. The genera Anolotichiina Pushkin, 1992 and Minutolunaria Pushkin, 1992 are redescribed. The species described occur in the Llanvirn (Azeri-Kukruse Regional stages) and Caradoc (Idavere-Oandu Regional stages). The results support the hypothesis that the study area represented an independent biogeographical region of the Baltic province, corresponding to the Brest-Volyn confacies during the Llanvirn and Caradoc.
Źródło:
Geological Quarterly; 2002, 46, 4; 411-434
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Record and palaeogeographical implications of Pleistocene periglacial processes in the Drohiczyn Plateau, Podlasie Lowland (Eastern Poland)
Autorzy:
Dzierżek, J.
Stańczuk, D.
Powiązania:
https://bibliotekanauki.pl/articles/2058927.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Podlasie Lowland
palaeogeography
Pleistocene
periglacial processes
ice-wedge casts
Opis:
The paper describes 51 ice-wedge casts from Wierzchuca Nagórna village near Drohiczyn town in the Podlasie Lowland in Eastern Poland. The structures are preserved in a till of theWartanian Glaciation. In the exposure the mean distance between them is 1.7 m; their mean length is 1 m, and their width ranges within 0.2–0.5 m. Most of the structures are typically wedge-shaped, although in some cases less regular pockets or veins are also observed. Some of the casts display a complex origin. They are filledmostly by fine-grained sand, in the lower parts with wind-corroded grains, as well as by sand with gravel from the overlying deposits. Near the ice-wedge casts, traces of frost swelling, uplift and sorting in permafrost conditions, as well as of an active layer are preserved. The thickness of the permafrost active layer, as preserved, is about 0.5–0.7 m. The formation of ice-wedges reflects periglacial conditions during the Vistulian (Weichselian) Glaciation. Three palaeogeographical alternatives are discussed. Probably, the lack of traces of periglacial activity from the Wartanian Glaciation is a result of plateau denudation. The range of this denudation has also been estimated.
Źródło:
Geological Quarterly; 2006, 50, 2; 219-228
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lower Paleozoic oil and gas shale in the Baltic-Podlasie-Lublin Basin (central and eastern Europe) - a review
Autorzy:
Poprawa, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2060266.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Baltic-Podlasie-Lublin Basin
lower Paleozoic
shale oil
shale gas
reservoir characteristics
Opis:
In the Baltic-Podlasie-Lublin Basin, four potential lower Paleozoic shale reservoirs are identified: the Piaśnica, Sasino and Jantar formations, as well as the Mingajny shale. These units were diachronously deposited during the starved stages of Caledonian foredeep basin development, in the course of rising or high eustatic sea level. Across most of the basin, the shale formations analysed are saturated with light oil and condensate, and they are buried to depths of 2300-3500 m. The shale reservoirs reach the wet gas window at burial depths of 2800-4000 m, while dry gas accumulations occur at depths exceeding 3500-5000 m, except in the Biłgoraj-Narol Zone. The shale analysed might be generally classified as a moderate to low quality, and locally high quality, unconventional reservoir. Within the shale net pay zones, the average TOC content is 2-5 wt.% TOC. The exceptions are the Piaśnica Formation, for which this is 5-12 wt.%, and the Mingajny shale, which is TOC-lean (1.4-1.7 wt.%). The thickness of the shale net pay intervals in the most favourable locations, mainly on the Łeba Elevation, generally reaches 20 m, and locally exceeds 35 m. The shale reservoirs are saturated with hydrocarbons of good quality. Their permeability is low to moderate, often in the range of 150-200 mD, while total porosity average per borehole is commonly exceeds 6 %, reaching up to 10% at maximum, which might be considered as moderate to good. The clay minerals content is moderate to high (30-50%), and geomechanical characteristics of the shale formations are intermediate between brittle and ductile. No overpressure occurs in the basin, except for a dry gas zone in the SW Baltic Basin. In the Biłgoraj-Narol Zone, and to a lesser degree also in the Lublin region, pronounced tectonic deformation significantly limits shale gas/oil potential. Among 66 exploration boreholes drilled in the basin so far, only 5 were lateral boreholes with representative production test results. Hydrocarbon flow from the best boreholes was low to moderate, equal to 11.2 to 15.6 thousand m3/day for gas, and 157 bbl/day (~21.4 ton/day) for oil. There is, however, high potential to improve production flow rates, connected with the fracturing of two net pay intervals at one time, as well as with significant technological progress in the exploitation of shale basins during the last 5 years. Commercially viable production might be achieved for a single borehole with estimated ultimate recovery exceeding 30-50 thousand tons of oil, or 60-90 million m3 of gas.
Źródło:
Geological Quarterly; 2020, 64, 3; 515--566
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza sedymentologiczna drobnoziarnistych osadów górnoordowicko-dolnosylurskich basenu podlasko-lubelskiego
Upper Ordovician-Lower Silurian fine-grained sediments in the Podlasie-Lublin Basin
Autorzy:
Lis, J.
Powiązania:
https://bibliotekanauki.pl/articles/2074760.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
basen podlasko-lubelski
mułowce
analiza podstawowa
Podlasie-Lublin Basin
mudstones
core analysis
Opis:
In western and central parts of the Podlasie-Lublin Basin, Upper Ordovician-Lower Silurian mixed siliciclastic-carbonate section is dominated by fine-grained sediments (claystones, mudstones), which are passing into more carbonaceous ones towards the east. In this region, subsidence was controlled by flexural bending of the East European Craton margin. Sedimentological analysis of drill cores revealed that deposition of those fine-grained sediments originated from suspension and traction currents. Amount of oxygen plays important role in the rock record (Fig. 1) whereas occurrence of pyrite is significant for determinations of sedimentary conditionsion, also in terms of sea level changes (Fig. 2). The rocks display abundant sedimentological structures such as current ripples, wave ripples, hummocky cross-stratification (HCS), graded beds, water escape structures, soft sediment deformation and scours (Fig. 3). The rocks are also characterized by predominance of wave ripples, common scours, graded beds and soft sediment deformations whereas current ripples, water escape structures and HCS are rather rare. The most frequent of the ichnofacies elements include unlined, rarely branched Planolites, which represent Scolithos, Cruziana and Zoophycus ichnofacies. The size of elements of Planolites ichnofacies appears dependent on environmental conditions and ranges from 0.5 mm to 15 mm. Chondrites, Anconichnus, Helminthopsis and Teichichnus, very important environment indicators, are present but not that common (Fig. 4). Textural analyses along with the records of diagenetic features made it possible to distinguish a succession of stratigraphic parasequences (Fig. 5). Early carbonate cementation appeared important, especially in the case of suble or invisible changes in grain size. On the basis of the obtained results, depositional environment of fined-grained sediments in the Podlasie-Lublin Basin was interpreted as a wave-dominated shelf with turbidite episodes. Detailed sedimentological observations are crucial for definiting facies types and prediction of their distribution, but also for tracing the most organic-rich units in the sedimentological profile, as the basic in terms of gas shale prospects. Apparently monotonous fine-grained sediments (claystones and mudstones) are shown to be in fact miscellaneous.
Źródło:
Przegląd Geologiczny; 2010, 58, 3; 259-262
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pozycja stratygraficzna osadów dolnego plejstocenu w południowej części Niziny Południowopodlaskiej - dyskusja merytoryczna
Stratigraphical position of lower Pleistocene sediments in Southern Podlasie Lowland - discussion
Autorzy:
Woronko, B.
Żarski, M.
Bujak, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/2063173.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
analiza sedymentologiczna
plejstocen
stratygrafia
Nizina Południowopodlaska
Pleistocene
stratigraphy
sedimentological analysis
Southern Podlasie Lowland
Opis:
W trzech wierceniach Budziska (ark. Okrzeja), Wola Chomejowa i Kolonia Bronisławów (ark. Adamów), wykonanych na potrzeby Szczegółowej mapy geologicznej Polski w skali 1:50 000 w południowej części Niziny Południowopodlaskiej, stwierdzono duże rozbieżności w wynikach wykonywanych analiz. Analiza obtoczenia i zmatowienia ziarn kwarcowych frakcji piaszczystej stwierdza, że charakteryzuje je bardzo wysoki udział ziarn kształtowanych w środowisku eolicznym. Natomiast wyniki analizy palinologicznej korelują badane osady z miocenem lub eocenem, t.j. okresami, w których nie notuje się obecności procesów eolicznych. Ponadto wyniki analizy minerałów ciężkich i uziarnienia badanych osadów pozwalają sądzić, że najprawdopodobniej osady poniżej gliny sanu 1 można korelować ze schyłkiem preglacjalnym lub z okresem bezpośrednio poprzedzającym nasunięcie najstarszego na tym terenie lądolodu zlodowacenia narwi. Ochłodzeniu towarzyszył intensywny rozwój procesów eolicznych na obszarach znajdujących się w strefie peryglacjału, rozciągającej się na południe od maksymalnego zasięgu tegoż lądolodu. Transportowany przez wiatr materiał był składany w dolinach rzecznych. Neogeńska flora notowana w analizowanych osadach najprawdopodobniej znajduje się na wtórnym złożu. Może być związana z intensywną erozją starszych osadów przez wody rzeki pra-Wieprza lub pra-Krzny.
Sedimentological analysis were preformed on samples taken from three boreholes: Budziska (Okrzeja sheet), Wola Chomejowa and Kolonia Bronisławów (Adamów sheet) drilled for need of the Geological map of Poland in a scale 1:50,000 in the southern part of the Southern Podlasie Lowland. Some significant discrepancies in certain features of the sediments are observed: high share of rounded and frosted quartz sand grains show aeolian environment of sedimentation. However according to the results of palynological analysis, the sediments were deposited in Miocene or Eocene periods, when aeolian processes are thought to be rather absent. Moreover, results of heavy minerals analysis and sieving analysis allow to infer that sediments lying under glacial till of San 1 can be correlated with the end of Preglaciation or with a period directly preceding oldest glacial transgression in this area, the Narevian Glaciation. During climate deterioration aeolian processes intensified in the periglacial zone south of the maximum glacial extend. Wind transported material was accumulated in river valleys. Neogene flora found in these sediments was probably redeposited and originated from older sediments eroded by the pra-Wieprza or pra-Krzna rivers.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2007, 425; 87-103
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Najpłytsze podłoże krystaliczne polskiej części platformy wschodnioeuropejskiej w strefie podlaskiej
The shallowest crystalline basement of the Polish part of the East European Platform in the Podlasie Belt
Autorzy:
Cymerman, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2075678.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
odwierty
struktury
podłoże krystaliczne
Proterozoik
strefa podlaska
NE Poland
boreholes
structures
Proterozoic
crystalline basement
Podlasie Belt
Opis:
The intensive development of studies on the crystalline basement of the Polish part of the East European Platform started only in the mid-1950s. These studies were based on geophysical research that preceded planned deep drilling projects. Twenty-five drill holes were located along four sections called: Białowieża, Kruszyniany, Sokółka and Krasnopol. The aim of this article is to re-evaluate drilling materials in the light of a variety of data, mainly structural data obtained from 20 boreholes from the first three "drilling sections”. All these sections were located on the Belarus-Lithuanian Elevation where the crystalline basement occurs at the shallowest depths. Special attention was paid to the recognition of ductile shear zones, SM foliation, LM mineral lineation and kinematic indicators. The results of the studies made it possible to identify the direction of tectonic transport, mainly with the top-to-SW, S and W, and deformation regimes in the boreholes of the Podlasie Belt. The main deformations have been related to a compressional regime in the amphibolite and granulite facies of regional metamorphism during the Svecofennian orogeny. It is suggested for the future to combine the research efforts of specialists from different fields of geological sciences. However, due to the scarcity of core material from old drillings, the most important are new deep boreholes that will provide a lot of drilling material to explain the geological structure and the evolution of the Proterozoic basement of NE Poland.
Źródło:
Przegląd Geologiczny; 2017, 65, 12; 1529--1535
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Litostratygrafia utworów ediakaru w lubelsko-podlaskim basenie sedymentacyjnym (wschodnia i południowo-wschodnia Polska)
Lithostratigraphy of the Ediacaran deposits in the Lublin-Podlasie sedimentary basin (eastern and south-eastern Poland)
Autorzy:
Pacześna, J.
Powiązania:
https://bibliotekanauki.pl/articles/2062012.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
litostratygrafia
ediakar
lubelsko-podlaski basen sedymentacyjny
wschodnia i południowo-wschodnia Polska
lithostratigraphy
Ediacaran
Lublin-Podlasie sedimentary basin
eastern and south-eastern Poland
Opis:
W artykule zaprezentowano sformalizowany schemat podziału litostratygraficznego utworów klastycznych i wulkanogenicznych ediakaru, wypełniających lubelsko-podlaski basen sedymentacyjny, zlokalizowany we wschodniej i południowo-wschodniej Polsce. W sukcesji górnego ediakaru wyróżniono osiem jednostek litostratygraficznych, w tym siedem formacji i jedno ogniwo. Podstawą wydzielenia jednostek było zróżnicowanie makroskopowych cech litologicznych w profilach z ediakaru. W charakterystyce jednostek litostratygraficznych zawarto historię ich nazewnictwa, kryteria zdefiniowania jednostki, opis, stratotypy i hipostratotypy, granice, chronostratygrafię, skamieniałości, interpretację genetyczną, miąższość, rozprzestrzenienie regionalne i odpowiedniki litostratygraficzne na obszarach sąsiednich.
The paper presents a formalized lithostratigraphic scheme of the Ediacaran clastic and volcanogenic deposits from the Lublin-Podlasie sedimentary basin, located in eastern and south-eastern Poland. The upper Ediacaran succession consists of eight lithostratigraphic units, including seven in the rank of formation, and one member. The basis for the identification of the units was the variability of macroscopic lithological features in the Ediacaran sections. The characterization of the lithostratigraphic units provides the history of their names and criteria for defining the units, and their description. The stratotypes and hypostratotypes, boundaries, chronostratigraphy, fossils, interpretation of origin, thicknesses, regional distribution patterns and lithostratigraphic equivalents from neighbouring areas are also characterized.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2014, 460; 1--23
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola procesów tektonicznych oraz eustatycznych w rozwoju sekwencji stratygraficznych utworów neoproterozoiku i kambru basenu lubelsko-podlaskiego
Relative role of tectonic and eustatic processes in development of the Neoproterozoic and Cambrian stratigraphic sequences of the Lublin-Podlasie Basin
Autorzy:
Pacześna, J.
Poprawa, P.
Powiązania:
https://bibliotekanauki.pl/articles/2074341.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
basen lubelsko-podlaski
basen sedymentacyjny
neoproterozoik
kambr
stratygrafia sekwencji
Lublin-Podlasie Basin
Neoproterozoic
Cambrian
sequence stratigraphy
Opis:
Sequence stratigraphy approach has been applied for the Neoproterozoic to Cambrian sedimentary fill of the Lublin–Podlasie Basin; the main goal of the study is to discriminate between eustatic and tectonic control of the observed sequence development. The Neoproterozoic and Cambrian sedimentary fill of the Lublin–Podlasie Basin is subdivided here into two second-order depositional sequences, separated by a basin-wide unconformity. The lower sequence A is poorly recognised. It is presumably of the early Neoproterozoic age, and is characterized by continental to costal shallow marine developments. Sequence B comprises the (late?) Neoproterozoic to Middle Cambrian. The lowermost part of the sequence B is composed of a lowstand systems tract (LST). At that time a low relative sea level was con-trolled by regional thermal doming, followed by rapid clastic and volcanogenic deposition, with rate exceeding that of subsidence of extensional grabens. During the latest Ediacaran, a transgressive systems tract I (TST I) developed. Increase of the rate of relative sea level rise was induced by a transition from syn-rift to post-rift subsidence. During the development of a following highstand systems tract I (HST I), significant sediment supply exceeded the rate of basement subsidence, causing progradation of shoreline. The next higher up-section transgressive system tract (TST II) is characterized by a gradual rela-tive sea level increase and reflects continued thermal sag phase of the Lublin–Podlasie Basin. Development of the TST II was coeval with a global transgression and controlled mainly by eustatic sea level rise. The beginning of the Middle Cambrian corresponds to the development of a HST II, controlled by a low rate of increase of the relative sea level, even if it was coeval in time with the Hawke Bay regression. The HST II is therefore interpreted here as controlled by local tectonic processes, superimposed on continued post-rift thermal subsidence of the passive margin.
Źródło:
Przegląd Geologiczny; 2005, 53, 7; 562--571
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeogeographic reconstruction of the North Podlasie region in the Sokółka area during the Late Pleistocene (NE Poland)
Autorzy:
Rychel, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2058729.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
glacial lobe
periglacial zone
polygenetic relief
Opis:
A new palaeogeographic reconstruction from the end of the Odranian Glaciation to the end of the Weichslian Glaciation (MIS 2) is based on research carried out at the Knyszewicze site, NE Poland, focusing on the dynamics of the Wartanian Glaciation (MIS 6) and showing the lobed nature of this ice sheet. Reconstruction of deglaciation in the research area was supplemented by analysis of postglacial morpholineaments (MMA). Research carried out at the Jałówka site enabled reconstruction of the processes affecting lake processes during the Eemian (MIS 5e) Interglacial and transformation of this area during the Weichselian Glaciation. The results obtained indicated that the study area was not covered by Weichselian ice, the sediments formerly considered as glacial being slope-related and providing evidence of periglacial conditions. A new conceptual model for the evolution of this area is put forward, showing the polygenetic nature of the relief. The glacial landforms developed during the Warta Stadial and transformed during the Eemian Interglacial were further affected by periglacial processes, which significantly remodelled the relief.
Źródło:
Geological Quarterly; 2021, 65, 1; 12
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utwory najwyższego ediakaru i najniższego kambru basenu lubelsko-podlaskiego jako potencjalne skały macierzyste dla węglowodorów
The uppermost Ediacaran to lowermost Cambrian sediments of the Lublin-Podlasie Basin as a potential source rock formation for hydrocarbons
Autorzy:
Pacześna, J.
Poprawa, P.
Żywiecki, M.
Grotek, I.
Poniewierska, H.
Wagner, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074335.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ediakar
kambr
potencjalne skały macierzyste
Lublin-Podlasie Basin
Ediacaran
Cambrian
potential source rock for hydrocarbons
Opis:
In the present contribution we examine possible role of deposits of the Białopole, Lublin, Włodawa and Mazowsze Forma-tions (uppermost Ediacaran to lowermost Cambrian), as well as their presumed lateral equivalents, developed in the Lublin-Podlasie region as a potential source rock for hydrocarbons. The analysed sediments contain marine kerogen of algal and cyanobacterial ori-gin, i.e., predominantly oil prone. In some parts of the analysed area recent TOC could reach 0.65%, however, primary TOC could be significantly higher, as it is indicated by relatively high maturity of the hydrocarbons. Quality of potential source rock increases towards SW. The analysed potential source rock could be, at least partly, responsible for oil and gas shows, commonly observed in the Lower and Middle Cambrian sandstone horizons.
Źródło:
Przegląd Geologiczny; 2005, 53, 6; 499--506
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyfrowa analiza fotogrametryczna tempa i charakteru ruchów masowych skarpy rzecznej doliny Bugu w rejonie Drohiczyna (południowe Podlasie)
Digital photogrammetric analysis of the rate and nature of mass movements of the Bug river valley escarpment in the Drohiczyna area (southern Podlasie)
Autorzy:
Kamiński, M.
Nitychoruk, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075458.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
lotniczy skaning laserowy
fotogrametria cyfrowa
zdjęcia lotnicze
ruchy masowe
naturalne niebezpieczeństwo
Drohiczyn
Airborne Laser Scanning
digital photogrammetry
aerial photographs
mass movements
natural hazard
Opis:
The traditional approach in photogrammetric studies relies mainly on the analysis of topographic maps, supported by geological and geomorphological field mapping. This paper presents an application of the modern method of three-dimensional earth imaging – Airborne Laser Scanning. The major advantage of this method is the filtering procedure, which allows to removing vegetation and other objects from the analysed surface, resulting in more precise terrain model. We used aerial photographs for preparation of two photogrammetric digital terrain models (DTMs), which were subsequently compared to evaluate dynamic properties of landslide areas. The difference between gratings within digital models was used to determine horizontal shifts in the area of landslide. The discrepancy presented observed in the shaded relief image characterises positive elevations (erosion) shown in reddish colour, and negative ones (accumulation) displayed in bluish. The maximum scarp retreat driven by landsliding processes reached 17 m during the last 53 years, with ca. 562 m3 of accumulated colluvium.
Źródło:
Przegląd Geologiczny; 2015, 63, 12/2; 1461--1471
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Litofacje formacji perspektywicznych dla gazu i ropy w łupkach w utworach ordowiku i syluru na obszarze bałtyckim i podlasko-lubelskim
Lithofacies of the Ordovician and Silurian formations prospective for shale gas/oilin the Baltic and Podlasie-Lublin areas
Autorzy:
Feldman-Olszewska, A.
Roszkowska-Remin, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075505.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
litofacje
ordowik
silurian
łupki
lithofacies
Ordovician
Silurian
shales
Opis:
The paper presents a sedimentological analysis of Ordovician (Sandbian–Hirnantian = Caradoc–Ashgill) and Silurian (Landovery–Wenlock, lower Ludlow) claystones and mudstones from the north-eastern (Baltic Basin) and south-eastern (Podlasie-Lublin Basin) parts of the East European Craton. In both basins, formations prospective for shale gas/oil were analyzed: the Sasino Fm., Pasłęk Fm. (including the Jantar Mb.), Pelplin Fm., Udal Fm., Wrotnów Fm. and Terespol Fm. Based on lithological and sedimentological criteria, 34 lithofacies and 11 lithofacies associations have been distinguished. The most promising lithofacies arerepresentedbytheL-1,L-3andL-4associationswhicharecharacterizedbydarkgreycolour, a very low degree or lack of bioturbation, rare sedimentary structures, and common content of small pyrite concretions. They dominate in the Sasino Fm., Pas³êk Fm. (in the Jantar Mb. only) and Pelplin Fm., but are much less common in the Udal Fm., Terespol Fm. and Pas³êk Fm. (excluding the Jantar Mb.).
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 968--975
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potencjał występowania złóż gazu ziemnego w łupkach dolnego paleozoiku w basenie bałtyckim i lubelsko-podlaskim
Shale gas potential of the Lower Palaeozoic complex in the Baltic and Lublin-Podlasie basins (Poland)
Autorzy:
Poprawa, P.
Powiązania:
https://bibliotekanauki.pl/articles/2074759.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
gaz łupkowy
górny ordowik
dolny sylur
zachodni skłon kratonu wschodnioeuropejskiego
EEC
shale gas
Upper Ordovician
Lower Silurian
East European Craton
Opis:
The Lower Palaeozoic basin at the western slope of the East European Craton (EEC) (Fig. 1) is currently recognized as one of the most interesting areas for shale gas exploration in Europe. The Upper Ordovician and/or Lower Silurian graptolitic shale is here the major potential reservoir formation (Figs. 2, 3) (Poprawa & Kiersnowski, 2008; Poprawa, 2009). Moreover, the Upper Cambrian to Tremadocian Alum shale is an additional target locally in the northern part of the Baltic Basin. These sediments are often rich in organic matter (Klimuszko, 2002; Poprawa & Kiersnowski, 2008; Więcław et al., 2010; Skręt & Fabiańska, 2009), as well as silica. Limited data from two wells in the western part of the Baltic Basin show silica contents up to 60-70% (Fig. 4) (Krzemiński & Poprawa, 2006). The advantage of the Lower Palaeozoic shale from the western slope of EEC is its broad lateral extend (Fig. 1) and relatively quiet tectonic setting. The later is particularly true in the case of the Baltic Basin and Podlasie Depression. Structural development becomes to some extent more complex in the case of the Lublin region, where the Lower Palaeozoic shale appears affected by late Famennian to early Visean block tectonics. Development of the organic rich Lower Palaeozoic shale at the western slope of EEC was controlled by several factors. Very important was here the rate of non-organic detritus deposition (Fig. 5). The other factors included organic productivity of the basin, its subsidence, relative sea level changes, basin bathymetry, geochemical conditions at the sea bottom (especially oxygenation), degree of bioturbation, presence of topographic barriers at the sea bottom, leading to development of isolated anoxic zones, sea currents configuration, and climate changes. Organic matter of the Lower Palaeozoic is characterized by presence of II type of kerogen. Appearance of the organic-rich shale within the Lower Palaeozoic section at the western slope of the EEC is diachronic (Fig. 6). From NW towards east and SE, the intervals richest in organic appear related to systematically younger strata, starting from the Upper Cambrian to Tremadocian, as well as the Upper Llanvirn and Caradoc in the Łeba Elevation (northern onshore Baltic Basin; Fig. 7). In central parts of the Baltic Basin and Podlasie Depression as well as NW part of the Lublin region, the intervals richest in organic matter are found in the Llandovery section, while in the eastern part of the Baltic Basin and SE part of the Lublin region the highest TOC contents are found in the Wenlock. Therefore, depending on location at the western slope of EEC, different formations are recognized as the targets for shale gas exploration. The Upper Cambrian to Tremadocian shale, present only in the northern part of the Baltic Basin, is characterized by very high contents of organic matter, with average value for individual sections usually ranging from 3 to 12% TOC. This shale formation is, however, of very limited thickness, not higher than several meters in the onshore part of the basin (Szymański, 2008; Więcław et al., 2010). In onshore part of the studied area, thickness of the Caradoc shale changes from a few meters up to more than 50 m (Modliński & Szymański, 1997, 2008). Contents of organic matter in these sediments are the highest in the Łeba Elevation zone and the basement of the Płock-Warszawa trough, where average TOC contents in individual well sections range from 1% to nearly 4%. Ashgill rocks are characterized by high TOC contents only in the Łeba Elevation zone, where average TOC values for individual well sections rise up to 4,5% at the most. Llandovery shale has high TOC contents, particularly in its lower part, throughout vast parts of the western slope of EEC. The maximum measured TOC contents in those rocks in Podlasie Depression are nearly 20%. Average TOC values for individual sections of the Llandovery are usually equal 1% do 2,5%, except for the Podlasie Depression, where they may reach as much as 6%. Thickness of the Llandovery shale generally increases from east to west to approximately 70 m at the most. However, in the major part of that area it ranges from 20 to 40 m (Modliński et al., 2006). Thickness of theWenlock sediments is also highly variable laterally, from less than 100 m in SE part of the Lublin region to over 1000 m in western part of the Baltic Basin. Average content of organic matter in individualWenlock sections in central and western parts of the Baltic Basin and the Podlasie Depression usually ranges from 0,5% to 1,3% TOC. In the eastern part of the Baltic Basin and in the Lublin region it is higher, rising to about 1-1,7% TOC. The above mentioned TOC values show the present day content of organic matter, which is lower than the primary one. The difference between the present and primary TOC contents increases along with increasing thermal maturity. It is also highly dependant on genetic type of kerogen. Taking into account the II type of kerogen from the analyzed sediments, it may be stated that in the zones located in the gas window the primary TOC was at least one-half greater than indicated by laboratory measurements. From the shale gas point of view, the basins at the western slope of EEC are characterized by a negative relation between depth at present day burial and thermal maturity (Poprawa & Kiersnowski, 2008). In the zones with burial depth small enough to keep exploration costs at very low level (Fig. 8), thermal maturity of shales is too low for gas generation (Figs. 9, 12a). Maturity increases westwards (Fig. 8) along with depth of burial (Fig. 9). Thus, the potential shale gas accumulations in the western part of the studied area occur at depths too high for commercial gas exploration and exploitation (Fig. 12b). Between of the zone of maturity too low for shale gas development and that where depth of burial is too large for its exploration, there occurs a broad zone of the Lower Palaeozoic shale with increased shale gas exploration potential (Fig. 13) (Poprawa & Kiersnowski, 2008; Poprawa, 2009). In that area, there are shale intervals of relatively high thickness and average TOC exceeding 1-2% TOC (Fig. 7, 10, 12c). Thermal maturity of these rocks appears sufficient for generation of gas (Fig. 9, 10), and results of well tests for deeper-seated conventional reservoirs suggest good quality of dry gas with no nitrogen (Fig. 12c). It should be noted that some gas shows have been recorded in the Lower Palaeozoic shale. Moreover, depth of burial is not too large for commercial shale gas exploration (Fig. 8, 10). Hydrocarbon shows and their composition in the Lower Palaeozoic are strictly related to thermal maturity of the source rock. In the zones of low maturity, these are almost exclusively oil shows documented. Further westwards, in the zone transitional to the gas window area, gas is wet and contains significant contribution of hydrocarbon gases higher than methane.Within the gas window zone, the records are almost exclusively limited to methane shows. Moreover, within the zones of low maturity high nitrogen contents were recorded (Poprawa, 2009). In the zones characterized by thermal maturity in the range from 0,8 to 1,1% Ro and very high TOC contents (over 15% at the most), there is a potential for oil shale exploration. The zones with the highest oil shale potential include eastern Baltic Basin in SW Lithuania and NE part of the Podlasie Depression. Some data necessary for entirely firm estimations of potential shale gas resources of the Lower Palaeozoic complex in Poland are still missing. However, preliminary estimates indicate that these shale gas resources may possibly be classified as gigantic (1,400-3,000 bln m3 of recoverable gas; Fig. 15). For comparison, resources of conventional gas in Poland are equal to 140,5 bln m exp.3, and annual domestic gas consumption is at the level of 14 bln m exp. 3. However, it should be noted that some characteristics of the Lower Palaeozoic complexes indicate increased exploration risk. The average TOC contents are here lower than in classic examples of gas shales, like e.g. Barnett shale. Moreover, in the zone of optimal burial depth (less than 3000–3500 m) thermal maturity is lower than in the case of the Barnett shale core area. An important risk factor is also both a limited amount and limited resources of conventional gas fields in the Lower Palaeozoic complex (Fig. 13). Amount and intensity of gas shows in the Lower Palaeozoic shale are also relatively low, and there is no evidences for presence of overpressure in this complex. In the eastern part of western slope of the EEC, there appears an additional risk factor-arelatively high content of nitrogen in gas.
Źródło:
Przegląd Geologiczny; 2010, 58, 3; 226-249
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evolution of late Ediacaran riverine-estuarine system in the Lublin-Podlasie slope of the East European Craton, southeastern Poland
Autorzy:
Pacześna, J.
Powiązania:
https://bibliotekanauki.pl/articles/1182491.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sedymentologia
stratygrafia sekwencji
równia aluwialna
estuarium
późny ediakar
wczesny dolny kambr
kraton wschodnioeuropejski
południowo-wschodnia Polska
sedimentology
sequence stratigraphy
alluvial plain
estuary
Late Ediacaran
early Lower Cambrian
East European Craton
south-eastern Poland
Opis:
Na podstawie zdefiniowania asocjacji facjalnych i systemów depozycyjnych oraz przedstawienia ram wydzieleń wysokorozdzielczej stratygrafii sekwencji sformułowano model rozwoju i destrukcji późnoediakarskiego systemu fluwialno-estuariowego, rozprzestrzenionego w obniżeniu podlaskim i lubelskim skłonie kratonu wschodnioeuropejskiego. Wyróżniono dwie grupy systemów depozycyjnych - aluwialne i estuariowe oraz system otwartego wybrzeża. System aluwialny był początkowo reprezentowany w północno-wschodnich i zachodnich depocentrach synryftowych przez stożki aluwialne. Dystalne części stożków były obszarami depozycji fluwialnej. Duże, piaskodenne rzeki roztokowe spływały poprzecznie do osi basenu sedymentacyjnego. W końcowych stadiach ewolucji basenu aluwialnego wyrównanie topografii ryftowej i wzrost tempa subsydencji w jego południowo-wschodniej części spowodowały rozwój rzek systemu anastomozującego. Spływały one wzdłuż osi basenu z północy na południe. Zmiana rodzaju przepływu rzek roztokowych z okresowego we wczesnych etapach rozwoju basenu aluwialnego na ciągły w późniejszych stadiach, rozwój równi zalewowych rzek systemu anastomozującego i zmiana koloru osadów akumulowanych przez rzeki świadczą o zmianie klimatu suchego, pustynnego na bardziej wilgotny, umiarkowany. Późnoediakarska sukcesja silikoklastyczna basenu lubelskiego jest zapisem transgresywnego etapu ewolucji estuarium. Jej przebieg odzwierciedla pięć kolejnych parasekwencji budujących transgresywny ciąg systemowy. W najwcześniejszych etapach rozwoju estuarium lubelskie miało charakter mieszany, falowo-pływowy. W fazie maksymalnego rozwoju, w miarę znaczącego wzrostu oddziaływania pływów, było to makropływowe, hypersynchroniczne estuarium o kominowej geometrii. Na przełomie ediakaru i kambru wraz z rozwojem ciągu systemowego wysokiego stanu względnego poziomu morza rozpoczął się regres i stopniowa likwidacja estuarium lubelskiego, które przekształciło się w estuarium o mieszanej energii falowo-pływowej i następnie w otwarte wybrzeże z udziałem falowania.
Źródło:
Polish Geological Institute Special Papers; 2010, 27; 1-96
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

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