Anomalous drill-core parting in the sediments of the Upper Silesian basin

• Autorzy: Kožušníková A. , Fialová V. , Hoch I.
• Języki publikacji: EN

Abstrakty

EN

Anomalous jointing of drillcores is sometimes observed in prospect boreholes in the Upper Silesian basin. The drillcore is jointed into discs, slices or porringers that are not resemblant to natural jointing. This occurs in various types of sediments, but especially in brittle rocks. Orientation of jointing planes is perpendicular to the borehole axis and does not depend on the distance from the front of the core run. Anomalous jointing reflects locally increased stress in the layer.

Słowa kluczowe

EN

core; anomalous parting; stress state

• Wydawca: Polskie Towarzystwo Geologiczne
• Czasopismo: Annales Societatis Geologorum Poloniae
• Rocznik: 2003
• Tom: Vol. 73, No 2
• Strony: 139--143
• Opis fizyczny: Bibliogr. 4 poz., rys., wykr.

Twórcy

autor

Kožušníková A.

• Institute of Geonics AS CR, Studentská 1768, 70800 Ostrava-Poruba, Czech Republic

autor

Fialová V.

• Institute of Geonics AS CR, Studentská 1768, 70800 Ostrava-Poruba, Czech Republic

autor

Hoch I.

• Mining Exploration and Safety a.s., Ostrava-Karviná Mines,Rudé armády 637, 73921 Paskov, Czech Republic

Bibliografia

• 1. Fialová, V. & KoZušníková, A., 1986. Anomalous drill-core parting in the working field ČSA in Karviná. (In Czech). Časopis Slezského Muzea Opava (AJ, 35: 39-42.
• 2. Malík, J., Fialová, V., KoZušníková, A. & Poláček, J., 1990. Model of origin of anomalous drill-core parting. (In Czech). Uhlí, 38, 2: 70-75.
• 3. Thoma, K., 1964. Ergebnisse der Untersuchung von Kembohrungen in Kalikombinat “Werra.“ Freiberger Forschungshefte, A, 304: 91-113.
• 4. Zabigailo, V. E., Shikokov, A. Z., Belyi, I.S., Kudelskiy, V.V., Mossur, E. A. & Rudometov, B.P, 1974. Geological factors of rock-bursts in Donbas. (In Russian). Akad. nauk Ukr. SSR, Institut geologicheskoy mekhaniki, Izdatelstvo Náuková Dumka.