Matches in SemOpenAlex for { <https://semopenalex.org/work/W2014679984> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2014679984 endingPage "191" @default.
- W2014679984 startingPage "183" @default.
- W2014679984 abstract "Stable isotopic measurements have been made on both planktonic foraminifera and coccolithic matrix of Middle Cretaceous (Late Albian–Cenomanian) age from two Pacific low latitude sites. The degree of alteration of the foraminifera has been assessed through the application of chemical analyses, cathodoluminescence and Scanning Electron Microscopy (SEM). The rotaliporid foraminifera display an interspecies range of δ 18 O values from −2.29 to −3.01‰ at Deep Sea Drilling Project (DSDP) Site 463 and from −2.74 to −3.55‰ at DSDP Site 305. Hedbergellid foraminifera exhibit a δ 18 O interspecies variation of −2.52 to −3.02‰ at Site 305. Isotopic analysis of individual Hedbergella delrioensis and Rotalipora appenninica foraminifera from single samples shows H. delrioensis to have a surprisingly large spread of δ 18 O values (−2.492 to −3.097‰ from Site 463, −2.454 to −3.344‰ from Site 305), whilst δ 13 C values remain confined to a narrower range. Such a spread of oxygen values may be related to a number of factors, including subtle diagenetic alteration, a wide range of temperature-related depth habitats or growth related changes of primary skeletal calcite. The hedbergellids have consistently lighter oxygen and heavier carbon isotopic values than do the rotaliporid foraminifera and hence provide isotopically derived palaeotemperatures consistent with a thermally stratified ocean. At both sites the oxygen isotopic data are consistent with a gradual warming through Albian–Cenomanian time. However, the results suggest that Middle Cretaceous equatorial oceans were possibly only as warm as those of the present day (or slightly warmer), but did not reach the high temperatures claimed in older literature." @default.
- W2014679984 created "2016-06-24" @default.
- W2014679984 creator A5012000579 @default.
- W2014679984 creator A5014698038 @default.
- W2014679984 creator A5017929780 @default.
- W2014679984 creator A5045928871 @default.
- W2014679984 creator A5066571909 @default.
- W2014679984 date "1998-03-01" @default.
- W2014679984 modified "2023-10-16" @default.
- W2014679984 title "Isotopic evidence for palaeotemperatures and depth stratification of Middle Cretaceous planktonic foraminifera from the Pacific Ocean" @default.
- W2014679984 cites W1973136277 @default.
- W2014679984 cites W1991959751 @default.
- W2014679984 cites W1998189869 @default.
- W2014679984 cites W2002670818 @default.
- W2014679984 cites W2048154720 @default.
- W2014679984 cites W2051973454 @default.
- W2014679984 cites W2052729148 @default.
- W2014679984 cites W2061952742 @default.
- W2014679984 cites W2126248410 @default.
- W2014679984 cites W2129014007 @default.
- W2014679984 cites W2141614982 @default.
- W2014679984 cites W2330240090 @default.
- W2014679984 cites W2331561648 @default.
- W2014679984 cites W3124595680 @default.
- W2014679984 cites W2042237612 @default.
- W2014679984 doi "https://doi.org/10.1017/s0016756898008334" @default.
- W2014679984 hasPublicationYear "1998" @default.
- W2014679984 type Work @default.
- W2014679984 sameAs 2014679984 @default.
- W2014679984 citedByCount "55" @default.
- W2014679984 countsByYear W20146799842013 @default.
- W2014679984 countsByYear W20146799842014 @default.
- W2014679984 countsByYear W20146799842015 @default.
- W2014679984 countsByYear W20146799842016 @default.
- W2014679984 countsByYear W20146799842017 @default.
- W2014679984 countsByYear W20146799842018 @default.
- W2014679984 countsByYear W20146799842020 @default.
- W2014679984 countsByYear W20146799842021 @default.
- W2014679984 countsByYear W20146799842022 @default.
- W2014679984 crossrefType "journal-article" @default.
- W2014679984 hasAuthorship W2014679984A5012000579 @default.
- W2014679984 hasAuthorship W2014679984A5014698038 @default.
- W2014679984 hasAuthorship W2014679984A5017929780 @default.
- W2014679984 hasAuthorship W2014679984A5045928871 @default.
- W2014679984 hasAuthorship W2014679984A5066571909 @default.
- W2014679984 hasConcept C108469399 @default.
- W2014679984 hasConcept C111368507 @default.
- W2014679984 hasConcept C12294951 @default.
- W2014679984 hasConcept C127313418 @default.
- W2014679984 hasConcept C130452526 @default.
- W2014679984 hasConcept C149348798 @default.
- W2014679984 hasConcept C151730666 @default.
- W2014679984 hasConcept C27543578 @default.
- W2014679984 hasConcept C2780134711 @default.
- W2014679984 hasConcept C2780191791 @default.
- W2014679984 hasConcept C2780368712 @default.
- W2014679984 hasConcept C83042747 @default.
- W2014679984 hasConceptScore W2014679984C108469399 @default.
- W2014679984 hasConceptScore W2014679984C111368507 @default.
- W2014679984 hasConceptScore W2014679984C12294951 @default.
- W2014679984 hasConceptScore W2014679984C127313418 @default.
- W2014679984 hasConceptScore W2014679984C130452526 @default.
- W2014679984 hasConceptScore W2014679984C149348798 @default.
- W2014679984 hasConceptScore W2014679984C151730666 @default.
- W2014679984 hasConceptScore W2014679984C27543578 @default.
- W2014679984 hasConceptScore W2014679984C2780134711 @default.
- W2014679984 hasConceptScore W2014679984C2780191791 @default.
- W2014679984 hasConceptScore W2014679984C2780368712 @default.
- W2014679984 hasConceptScore W2014679984C83042747 @default.
- W2014679984 hasIssue "2" @default.
- W2014679984 hasLocation W20146799841 @default.
- W2014679984 hasOpenAccess W2014679984 @default.
- W2014679984 hasPrimaryLocation W20146799841 @default.
- W2014679984 hasRelatedWork W1491290751 @default.
- W2014679984 hasRelatedWork W1811670265 @default.
- W2014679984 hasRelatedWork W2020124760 @default.
- W2014679984 hasRelatedWork W2181815500 @default.
- W2014679984 hasRelatedWork W2244958959 @default.
- W2014679984 hasRelatedWork W2602078521 @default.
- W2014679984 hasRelatedWork W2791515553 @default.
- W2014679984 hasRelatedWork W3185091001 @default.
- W2014679984 hasRelatedWork W4300954606 @default.
- W2014679984 hasRelatedWork W2463146272 @default.
- W2014679984 hasVolume "135" @default.
- W2014679984 isParatext "false" @default.
- W2014679984 isRetracted "false" @default.
- W2014679984 magId "2014679984" @default.
- W2014679984 workType "article" @default.