_version_ 1867171774833098752
author Nikolaev, Vladimir I
Blyum, Natalia S
Nikolayev, Sergey D
author_facet Nikolaev, Vladimir I
Blyum, Natalia S
Nikolayev, Sergey D
collection Datos científicos de ciencias marinas y ambientales
contents Oxygen isotope analysis of skeletal remains of planktonic foraminifers is being successfully used to solve paleoclimatic and stratigraphic problems. At middle latitudes, where considerable seasonal variations in environmental conditions of habitat are found, one has to use for analysis shells of an entire complex of planktonic foraminifera rather than those of individual species. At the same time, one must take into account to what average depths correspond obtained results. A study of variations of O18/O16 ratio in ocean water and in shells of recent foraminifera has made it possible to establish the average depth of habitat of their complexes. This depth is equal to about 200 m at middle, subtropical and tropical latitudes and 100-150 m in equatorial regions. These figures are confirmed by results of determination of average habitat depths by other methods.
format Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_755167
institution PANGAEA
language en
publishDate 1979
publisher PANGAEA
record_format pangaea
spellingShingle (Table 1) Oxygen isotope composition in planktonic foraminifers from surface sediments of the East Pacific
Nikolaev, Vladimir I
Blyum, Natalia S
Nikolayev, Sergey D
Archive of Ocean Data; ARCOD; DEPTH, sediment/rock; Depth water equivalent; DM14; DM14-1002; DM14-995; DM8; DM8-528-1; DM8-571; DM8-585; Dmitry Mendeleev; Elevation of event; Event label; Foraminifera, planktic δ18O; Grab; GRAB; Latitude of event; Longitude of event; Mass spectrometry (MS); Southeast Pacific; Temperature, calculated; δ18O, standard deviation; δ18O, water
Oxygen isotope analysis of skeletal remains of planktonic foraminifers is being successfully used to solve paleoclimatic and stratigraphic problems. At middle latitudes, where considerable seasonal variations in environmental conditions of habitat are found, one has to use for analysis shells of an entire complex of planktonic foraminifera rather than those of individual species. At the same time, one must take into account to what average depths correspond obtained results. A study of variations of O18/O16 ratio in ocean water and in shells of recent foraminifera has made it possible to establish the average depth of habitat of their complexes. This depth is equal to about 200 m at middle, subtropical and tropical latitudes and 100-150 m in equatorial regions. These figures are confirmed by results of determination of average habitat depths by other methods.
title (Table 1) Oxygen isotope composition in planktonic foraminifers from surface sediments of the East Pacific
topic Archive of Ocean Data; ARCOD; DEPTH, sediment/rock; Depth water equivalent; DM14; DM14-1002; DM14-995; DM8; DM8-528-1; DM8-571; DM8-585; Dmitry Mendeleev; Elevation of event; Event label; Foraminifera, planktic δ18O; Grab; GRAB; Latitude of event; Longitude of event; Mass spectrometry (MS); Southeast Pacific; Temperature, calculated; δ18O, standard deviation; δ18O, water
url https://doi.org/10.1594/PANGAEA.755167