Ediakara Krāslavas slāņkopas veidošanās apstākļi
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Latvijas Universitāte
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lav
Abstract
Bakalaura darbā tika noteikti ediakara Krāslavas slāņkopas veidošanās apstākļi urbumos Mežogas, Šķaune-103, Krāslava-104 un Subate (Gārsene) - 2. Darba teorētiskajā daļā tika apskatīta Baltijas un Baltkrievijas ediakara nogulumu uzbūve. Krāslavas slāņkopas veidošanās apstākļi tika noteikti, balstoties uz urbumu seržu un makroparaugu aprakstiem, granulometriskās analīzes rezultātiem, plānslīpējumu pētniecību un graudu noapaļotības analīzes rezultātiem. Krāslavas slāņkopas nogulumiem ir noteikta glacigēna, glaciofluviāla un marīna, plūdmaiņu ietekmēta izcelsme. Noskaidrots, ka nogulumi ir veidojušies deglaciācijas un tai sekojošas atkārtotas ledāja uzvirzīšanās vai jūras regresijas ietekmē.
The bachelor's thesis determines the sedimentary environment of the Ediacaran Krāslava beds in the boreholes Mežogas, Šķaune-103, Krāslava-104 and Subate (Gārsene) - 2. The theoretical part of the thesis examines the structure of the Ediacaran sediments of the Baltic and Belarus. The sedimentary environment of the Krāslava beds was determined based on descriptions of borehole cores and macrosamples, results of granulometric analysis, thin section studies and results of grain roundness analysis. The sediments of the Krāslava beds have been determined to be of glacigenic, glaciofluvial and marine, tidally influenced origin. It has been determined that the sediments have formed under the influence of deglaciation and subsequent repeated glacial uplift or sea regression.
The bachelor's thesis determines the sedimentary environment of the Ediacaran Krāslava beds in the boreholes Mežogas, Šķaune-103, Krāslava-104 and Subate (Gārsene) - 2. The theoretical part of the thesis examines the structure of the Ediacaran sediments of the Baltic and Belarus. The sedimentary environment of the Krāslava beds was determined based on descriptions of borehole cores and macrosamples, results of granulometric analysis, thin section studies and results of grain roundness analysis. The sediments of the Krāslava beds have been determined to be of glacigenic, glaciofluvial and marine, tidally influenced origin. It has been determined that the sediments have formed under the influence of deglaciation and subsequent repeated glacial uplift or sea regression.