Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Stephen E Calvert"'
Publikováno v:
Paleoceanography and Paleoclimatology. 36
Autor:
Simon W. Poulton, Kohen W. Bauer, Dan Asael, Noah J. Planavsky, Devon B. Cole, Stephen E. Calvert, Roger Francois, Sean A. Crowe
Hydrothermal chromium (Cr) cycling contributes to marine Cr inventories and their Cr isotopic composition, yet Cr isotope effects associated with this cycling remain poorly documented. Here we determine the distribution, isotopic composition, and dia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd6dcb658a2b213088d63939eb816baf
Autor:
Terri Lacourse, Randolph J. Enkin, Vera Pospelova, Stephen E. Calvert, Tara Ivanochko, Manuel Bringué
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 441:787-810
We present a high resolution sedimentary record of dinoflagellate cysts spanning the last ~ 900 years recovered from Effingham Inlet, a glacial fjord on the west coast of Vancouver Island, Canada. The combination of seasonal coastal upwelling support
Publikováno v:
Marine Chemistry. 177:607-629
The vertical flux of particles and their interactions within the ocean, together with the global ocean circulation, control the water-column distribution of a wide range of elements. Such processes condition patterns of their deposition and burial wi
Autor:
Audrey Dallimore, Stephen E. Calvert, Richard E. Thomson, Alice S. Chang, Miriam A. Bertram, Tara Ivanochko
Publikováno v:
Marine Geology. 337:20-34
Sediment traps were deployed inside the anoxic inner basin of Effingham Inlet and at the oxygenated mouth of the inlet from May 1999 to September 2000 in a pilot study to determine the annual depositional cycle and impact of the 1999 La Nina event wi
Autor:
David Z. Piper, Stephen E. Calvert
Publikováno v:
Geochimica et Cosmochimica Acta. 75:5597-5624
The elemental geochemistry of Late Pleistocene and Holocene sediments of the Black Sea, recovered in box cores from the basin margins and a 5-m gravity core from the central abyssal region of the basin, identifies two terrigenous sediment sources ove
Autor:
Markus Kienast, Nathalie Dubois, Stephen E. Calvert, Timothy D Herbert, Claire Normandeau, Stephanie S. Kienast, Alan C. Mix
Publikováno v:
Quaternary Science Reviews. 30:210-223
In this study, we use records of nitrogen isotope ratios (δ15N), UK’37 temperature estimates, organic carbon and opal percentages from high-resolution sediment cores located in the eastern equatorial Pacific (EEP) to explore the mechanisms linking
Autor:
Murray B. Hay, Tim R. Baumgartner, Audrey Dallimore, Reinhard Pienitz, Stephen E. Calvert, Richard E. Thomson
Publikováno v:
Marine Geology. 262:50-61
Sediments from Effingham Inlet, Vancouver Island, British Columbia hold a valuable high-resolution Holocene record of paleoclimatic and paleoceanographic conditions in the northeast Pacific Ocean. Accurate interpretation of this record requires that
Autor:
David Z. Piper, Stephen E. Calvert
Publikováno v:
Earth-Science Reviews. 95:63-96
Deposition of marine black shales has commonly been interpreted as having involved a high level of marine phytoplankton production that promoted high settling rates of organic matter through the water column and high burial fluxes on the seafloor or
Publikováno v:
Canadian Journal of Earth Sciences. 45:1317-1329
Determining climate variations over the Holocene requires high-resolution records with well-developed age models. A 40 m long marine sediment core raised from Effingham Inlet, an anoxic fjord on the west coast of Vancouver Island, British Columbia, C