Processing results from drill hole Pomorsk-1 in the Pechora Sea, south-east Barents Sea, central part of the Pomorskaya structure (Report 6166, Murmansk)
Project 4/86-88 Study of lithologic-facial composition of rocks, correlation of sections, and compilation of reference collections of Mesozoic-Paleozoic deposits from the Barents and Kara Seas based on drilling materials. Reasons for drilling: 1. Comprehensive study of properties, composition and li...
| Main Authors: | , , |
|---|---|
| Format: | Dataset |
| Language: | English |
| Published: |
PANGAEA
1986
|
| Subjects: | |
| Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.690354 https://doi.org/10.1594/PANGAEA.690354 |
| Summary: | Project 4/86-88 Study of lithologic-facial composition of rocks, correlation of sections, and compilation of reference collections of Mesozoic-Paleozoic deposits from the Barents and Kara Seas based on drilling materials. Reasons for drilling: 1. Comprehensive study of properties, composition and lithologic-facial features of sedimentary rocks from the geological section in the Pomorskaya structure. 2. Obtaining information for stratification of the section. Technical results: The hole was drilled from 16.08.1985 till 14.11.1985. It has penetrated the section of 2750 m and stopped in Early Carboniferous deposits. 237 samples have been collected. Scientific results: 1. Comprehensive lithologic and paleontological studies of drill samples from the hole have allowed to reveal lithologic features and to carry out detailed lithologic and stratigraphic sequence from Early Carbonaceous to Quaternary sedimentary rocks. 2. From 2567 to 2750 m Carboniferous deposits are mainly carbonaceous and composed of limestones, dolomites, silicified limestones, rarely - of argillite bands. Upward (through the intermediate Early Permian carbonaceous-clayey series) they are changed by Permian-Triassic, Jurassic-Cretaceous and Neogene-Quaternary terrigenous deposits composed of alternation of clays, argillites, sandstones and siltstones with rare coaly bands. 3. On matter composition and facial characteristics the deposits of the section correlate well with coeval deposits from the Peschanoozerskaya (Kolguev Island) and Dresvyanskaya (Timan-Pechora region) areas and the adjacent continental part of the Timan-Pechora province. 4. The rocks are characterized by higher degree of catagenesis than coeval ones from the Peschanoozerskaya area. |
|---|