FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990737848> ?p ?o ?g. }

• W1990737848 endingPage "143" @default.
• W1990737848 startingPage "131" @default.
• W1990737848 abstract "The cyclic development of anoxic conditions in the eastern Mediterranean deep sea waters is one of the most fascinating research topics in paleoceanographic studies. In combination with bottom water stagnation, enhanced primary production is a common explanation for the deposition of organic-rich layers (sapropels). This is supported by extensive evidence from both geochemical and micropaleontological studies. The correspondence of recent sapropel layers with peaks of the lower photic zone coccolithophore species Florisphaera profunda has been interpreted as a proxy for the development of a deep chlorophyll maximum (DCM), due to the pycnocline/nutricline shallowing into the lower part of the photic zone. We present millennial-scale data for coccolithophore assemblages from sediments across the most recent sapropel (S1), in the ODP Hole 964B drilled in the Ionian Sea. Relative and absolute abundances of taxa are compared with selected elemental composition of the bulk sediments. The Mn/Al and Ba/Al profiles are used to determine the original thickness of the S1 interval, and show that the upper part of S1 was affected by post-depositional oxidation of organic matter. The Nannofossil Accumulation Rate, defined by the number of coccoliths·cm− 2·kyr− 1, suggests that there is no evidence of increased productivity within most of the sapropel layer. In fact, coccolithophore production was at its minimum in the lower part. Minimum coccolith concentrations are reached despite the increase in F. profunda in both relative and absolute abundance. We suggest that the DCM deduced from the increased productivity of this species did not significantly contribute to the putative overall increased primary productivity during the deposition of most of the sapropel layer. Within the upper oxidized part of S1, coccolith accumulation was at least five times higher than in the lower part. This period of high coccolith productivity finds a counterpart in the increase of the Ba/Al ratio. The total concentration of coccoliths is again controlled by the amount of E. huxleyi, but it is also supported by concomitant increases in all the other groups, suggesting that coccolithophore productivity increased throughout the year and through the total vertical extent of the photic zone. At site 964, this is apparently the only moment when coccolithophores contributed substantially to the increased primary productivity generally assumed for the S1 layer." @default.
• W1990737848 created "2016-06-24" @default.
• W1990737848 creator A5019987738 @default.
• W1990737848 creator A5056169493 @default.
• W1990737848 creator A5058666343 @default.
• W1990737848 creator A5061601706 @default.
• W1990737848 creator A5089180145 @default.
• W1990737848 date "2011-12-01" @default.
• W1990737848 modified "2023-09-26" @default.
• W1990737848 title "Conflicting coccolithophore and geochemical evidence for productivity levels in the Eastern Mediterranean sapropel S1" @default.
• W1990737848 cites W1492855472 @default.
• W1990737848 cites W1636679337 @default.
• W1990737848 cites W1852313807 @default.
• W1990737848 cites W1919635784 @default.
• W1990737848 cites W1967266368 @default.
• W1990737848 cites W1967649645 @default.
• W1990737848 cites W1971369540 @default.
• W1990737848 cites W1971879569 @default.
• W1990737848 cites W1972300912 @default.
• W1990737848 cites W1974554633 @default.
• W1990737848 cites W1974725465 @default.
• W1990737848 cites W1974836087 @default.
• W1990737848 cites W1977178243 @default.
• W1990737848 cites W1978305648 @default.
• W1990737848 cites W1980794004 @default.
• W1990737848 cites W1981709236 @default.
• W1990737848 cites W1982100563 @default.
• W1990737848 cites W1982691560 @default.
• W1990737848 cites W1997313056 @default.
• W1990737848 cites W1997738796 @default.
• W1990737848 cites W1999192108 @default.
• W1990737848 cites W1999901445 @default.
• W1990737848 cites W2001156023 @default.
• W1990737848 cites W2001788685 @default.
• W1990737848 cites W2002552435 @default.
• W1990737848 cites W2003626279 @default.
• W1990737848 cites W2004434426 @default.
• W1990737848 cites W2006243920 @default.
• W1990737848 cites W2007903703 @default.
• W1990737848 cites W2008450675 @default.
• W1990737848 cites W2008632650 @default.
• W1990737848 cites W2009087064 @default.
• W1990737848 cites W2009685348 @default.
• W1990737848 cites W2011018379 @default.
• W1990737848 cites W2011948678 @default.
• W1990737848 cites W2012006566 @default.
• W1990737848 cites W2017057096 @default.
• W1990737848 cites W2020715324 @default.
• W1990737848 cites W2020844611 @default.
• W1990737848 cites W2021771753 @default.
• W1990737848 cites W2022473152 @default.
• W1990737848 cites W2023797635 @default.
• W1990737848 cites W2030839943 @default.
• W1990737848 cites W2032123519 @default.
• W1990737848 cites W2036584892 @default.
• W1990737848 cites W2038461879 @default.
• W1990737848 cites W2039275800 @default.
• W1990737848 cites W2043560082 @default.
• W1990737848 cites W2044411427 @default.
• W1990737848 cites W2046481661 @default.
• W1990737848 cites W2049144205 @default.
• W1990737848 cites W2050254243 @default.
• W1990737848 cites W2051147978 @default.
• W1990737848 cites W2052001254 @default.
• W1990737848 cites W2053146839 @default.
• W1990737848 cites W2055382689 @default.
• W1990737848 cites W2057504811 @default.
• W1990737848 cites W2059093135 @default.
• W1990737848 cites W2060070232 @default.
• W1990737848 cites W2060418374 @default.
• W1990737848 cites W2063338071 @default.
• W1990737848 cites W2063728128 @default.
• W1990737848 cites W2064899591 @default.
• W1990737848 cites W2069563055 @default.
• W1990737848 cites W2072032745 @default.
• W1990737848 cites W2072725591 @default.
• W1990737848 cites W2074476857 @default.
• W1990737848 cites W2078319730 @default.
• W1990737848 cites W2079313912 @default.
• W1990737848 cites W2080969185 @default.
• W1990737848 cites W2081698385 @default.
• W1990737848 cites W2082225456 @default.
• W1990737848 cites W2082965653 @default.
• W1990737848 cites W2084622848 @default.
• W1990737848 cites W2085691663 @default.
• W1990737848 cites W2087950925 @default.
• W1990737848 cites W2089511285 @default.
• W1990737848 cites W2092355978 @default.
• W1990737848 cites W2095357124 @default.
• W1990737848 cites W2100918151 @default.
• W1990737848 cites W2110496509 @default.
• W1990737848 cites W2117837504 @default.
• W1990737848 cites W2122711014 @default.
• W1990737848 cites W2123588053 @default.
• W1990737848 cites W2131038832 @default.
• W1990737848 cites W2131146484 @default.
• W1990737848 cites W2133520730 @default.
• W1990737848 cites W2133749899 @default.

• next