Matches in SemOpenAlex for { <https://semopenalex.org/work/W1989118820> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W1989118820 endingPage "880" @default.
- W1989118820 startingPage "857" @default.
- W1989118820 abstract "Investigations of the geological structure and seabed dynamics as well as the morphological and sedimentological effects of sand extraction generated by different mining techniques were carried out in Polish waters of the Baltic Sea, NW of the Gulf of Gdańsk, at a water depth of 15–17 m. Three research cruises took place: just before, directly after and 11 months after dredging operations. Seismoacoustic profiling, a multibeam echosounder, a side-scan sonar, a 3 m vibro-corer and a box-corer were used during the research cruises. The grain size distribution and 137Cs content of the sand samples were determined. Marine shells were dated by the AMS14C technique and pollen analyses were carried out on samples of muddy sands lying below the marine sand. A 2 to 4.5 m thick layer of marine sands lies on the boulder till and locally on late Pleistocene ice margin lake deposits. The 137Cs content indicates that the 0.4–0.8 m thick sand layer is mobile during storms. After the dredging operations, four pits with diameters from 80 to 120 m, depths from 3 to 4.5 m and slopes with gradients up to 30–55° were measured. Several smaller irregularly shaped pits and double furrows 30–150 m in length and 0. 3–0.5 m in depth were found. The sonar mosaic also shows a 50–100 m buffer zone of fine sand around the pits which flowed over the dredger’s side with water and settled on the bottom. During one year after the dredging operation the furrows generated by trailer suction hopper dredging as well as the fine sand cover around the pits disappeared completely. The four post-dredging pits left by stationary suction dredging were shallower by 2–2.5 m, their diameters increased by 40–50 m, the gradient of the slopes was reduced by up to 5–10°, and the total volume was only about 3.5% smaller than directly after dredging." @default.
- W1989118820 created "2016-06-24" @default.
- W1989118820 creator A5024054026 @default.
- W1989118820 creator A5038607294 @default.
- W1989118820 creator A5048348922 @default.
- W1989118820 creator A5059348423 @default.
- W1989118820 creator A5064529189 @default.
- W1989118820 creator A5077611733 @default.
- W1989118820 creator A5080808881 @default.
- W1989118820 creator A5081244852 @default.
- W1989118820 date "2014-01-01" @default.
- W1989118820 modified "2023-10-01" @default.
- W1989118820 title "Impact of sand extraction from the bottom of the southern Baltic Sea on the relief and sediments of the seabed" @default.
- W1989118820 cites W2031529933 @default.
- W1989118820 cites W2035942937 @default.
- W1989118820 cites W2044709637 @default.
- W1989118820 cites W2156856633 @default.
- W1989118820 doi "https://doi.org/10.5697/oc.56-4.857" @default.
- W1989118820 hasPublicationYear "2014" @default.
- W1989118820 type Work @default.
- W1989118820 sameAs 1989118820 @default.
- W1989118820 citedByCount "28" @default.
- W1989118820 countsByYear W19891188202017 @default.
- W1989118820 countsByYear W19891188202018 @default.
- W1989118820 countsByYear W19891188202019 @default.
- W1989118820 countsByYear W19891188202020 @default.
- W1989118820 countsByYear W19891188202021 @default.
- W1989118820 countsByYear W19891188202022 @default.
- W1989118820 countsByYear W19891188202023 @default.
- W1989118820 crossrefType "journal-article" @default.
- W1989118820 hasAuthorship W1989118820A5024054026 @default.
- W1989118820 hasAuthorship W1989118820A5038607294 @default.
- W1989118820 hasAuthorship W1989118820A5048348922 @default.
- W1989118820 hasAuthorship W1989118820A5059348423 @default.
- W1989118820 hasAuthorship W1989118820A5064529189 @default.
- W1989118820 hasAuthorship W1989118820A5077611733 @default.
- W1989118820 hasAuthorship W1989118820A5080808881 @default.
- W1989118820 hasAuthorship W1989118820A5081244852 @default.
- W1989118820 hasBestOaLocation W19891188201 @default.
- W1989118820 hasConcept C105306849 @default.
- W1989118820 hasConcept C111368507 @default.
- W1989118820 hasConcept C114793014 @default.
- W1989118820 hasConcept C127313418 @default.
- W1989118820 hasConcept C174943157 @default.
- W1989118820 hasConcept C196937547 @default.
- W1989118820 hasConcept C2781279111 @default.
- W1989118820 hasConcept C2816523 @default.
- W1989118820 hasConcept C33613203 @default.
- W1989118820 hasConcept C50254455 @default.
- W1989118820 hasConceptScore W1989118820C105306849 @default.
- W1989118820 hasConceptScore W1989118820C111368507 @default.
- W1989118820 hasConceptScore W1989118820C114793014 @default.
- W1989118820 hasConceptScore W1989118820C127313418 @default.
- W1989118820 hasConceptScore W1989118820C174943157 @default.
- W1989118820 hasConceptScore W1989118820C196937547 @default.
- W1989118820 hasConceptScore W1989118820C2781279111 @default.
- W1989118820 hasConceptScore W1989118820C2816523 @default.
- W1989118820 hasConceptScore W1989118820C33613203 @default.
- W1989118820 hasConceptScore W1989118820C50254455 @default.
- W1989118820 hasIssue "4" @default.
- W1989118820 hasLocation W19891188201 @default.
- W1989118820 hasLocation W19891188202 @default.
- W1989118820 hasOpenAccess W1989118820 @default.
- W1989118820 hasPrimaryLocation W19891188201 @default.
- W1989118820 hasRelatedWork W118146673 @default.
- W1989118820 hasRelatedWork W2038931274 @default.
- W1989118820 hasRelatedWork W2050046091 @default.
- W1989118820 hasRelatedWork W2161651281 @default.
- W1989118820 hasRelatedWork W2260934477 @default.
- W1989118820 hasRelatedWork W2266402589 @default.
- W1989118820 hasRelatedWork W2301201209 @default.
- W1989118820 hasRelatedWork W2969540503 @default.
- W1989118820 hasRelatedWork W3045445207 @default.
- W1989118820 hasRelatedWork W3135809093 @default.
- W1989118820 hasVolume "56" @default.
- W1989118820 isParatext "false" @default.
- W1989118820 isRetracted "false" @default.
- W1989118820 magId "1989118820" @default.
- W1989118820 workType "article" @default.