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Wyszukujesz frazę "geochemical indicators" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Ocena stopnia antropopresji wód podziemnych w rejonach poszukiwania i eksploatacji złóż węglowodorów
Assessment of the anthropopressure degree of groundwater in the areas of hydrocarbon exploration and exploitation
Autorzy:
Krogulec, Ewa
Sawicka, Katarzyna
Zabłocki, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/2076062.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wody podziemne
monitoring dedykowany
złoża węglowodorów
zanieczyszczenie antropogeniczne
wskaźniki geochemiczne
groundwater
dedicated monitoring
hydrocarbon deposits
anthropogenic pollution
geochemical indicators
Opis:
The aim of the study was to propose a range of interpretation of the results of qualitative groundwater monitoring by using geochemical indicators to assess the degree of anthropogenic groundwater pollution. The location, scope and frequency of groundwater testing dedicated to the possibility of indicating the degree of pressure resulting from the activity in the field of hydrocarbon exploration and exploitation is proposed. On the basis of multistage monitoring research in the area of hydrocarbon exploration and exploitation, the qualitative groundwater base state was determined and change trends were characterized at each subsequent testing stage. Anthropogenic transformations of groundwater chemistry are the result of many overlapping factors, which is why the reason of water quality change is difficult to identify. The very statement of the presence of high values of physico-chemical parameters in waters does not have to prove the influence of the monitored object on their composition. It is proposed to use geochemical indicators: enrichment factor, pollution factor, geoaccumulation factor, and pollution load indicator to assess the degree of anthropogenic pollution of groundwater in the area of hydrocarbon exploration and exploitation. The geochemical indicators, which are proposed for use, enable the identification of substances of anthropogenic origin in waters and the detection of even the initial degree of anthropopressure on their composition in specific mining activities.
Źródło:
Przegląd Geologiczny; 2020, 68, 4; 242--248
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Organic carbon accumulation events in the mid-Cretaceous rocks of the Pieniny Klippen Belt (Polish Carpathians) : a petrological and geochemical approach
Autorzy:
Wójcik-Tabol, P.
Powiązania:
https://bibliotekanauki.pl/articles/2059136.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Pieniny Klippen Belt
mid-Cretaceous
oceanic anoxic events
black shales
geochemical indicators
Opis:
New petrological and geochemical data lead to a consistent depositional model of the Corg.-rich sedimentation within the Pieniny Basin during themid-Cretaceous. Considerable terrestrial runoff into the Pieniny Basin occurred during the late Albian. Detritalmacerals accumulated under aerobic conditions on the shelf and continental slope. Fertilization of surface water induced primary productivity; aerobic degradation of organic matter led to the development of an oxygen-minimumzone within mid-water. The oxygen-minimumzone spread over almost all of the Pieniny Basin (Albian/Cenomanian). At the same time, a stagnant pool developed in the Grajcarek Basin. During the mid-Cenomanian the O2 minimum zone retracted and covered only the shelf and upper/middle slope. Stagnant pools might have formed in the depressions. Turbidity currents flowed down the slope and deposited calciturbiditic sequences with organic detritus in the Branisko and Pieniny basins. At the end of the Cenomanian, isolated anoxic or even H2S-bearing basins existed on the shelf. The slope was still occupied by the oxygen-minimum zone. In the deepest part of the sea-floor a stagnant basin formed.
Źródło:
Geological Quarterly; 2006, 50, 4; 419-436
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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