44,152 Works

Swath sonar bathymetry during POLARSTERN cruise ARK-XXIII/3 (PS72) with links to multibeam raw data files

Hans Werner Schenke, Tanja Dufek, Laura Jensen & Franziska Jurisch
Multibeam data were measured during R/V Polarstern cruise ARK-XXIII/3 along track lines of 7248 NM total length in the Arctic Ocean during transits and stationary work. Data were achieved on the transit from Iceland through the Northwestern Passage and the Beaufort Sea to the East Siberian Sea, crossing Northwind Ridge and Chukchi Plateau. The continental margin of East Siberian was surveyed by several wide spaced transects for almost three weeks. The Mendeleev Ridge and the...

(Table 4) Results from four aliquots of the same sample from Caravaca Spain

Joanna Morgan, Cristiano Lana, Anton Kearsley, Barry Coles, Claire Belcher, Sandro Montanari, Enrique Díaz-Martínez, Antonio Barbosa & Virginio Neumann

Tree-ring width of Quercus species from historical object sample IB21343-5

Hans-Jürgen Bleyer
Species QUSP; No of rings 91; Begin 1370; End 1460

Tree-ring width of Abies alba (Miller) from historical object sample HOH4230-15

Michael Friedrich
Species ABAL; No of rings 80; Begin 1360; End 1439

Tree-ring width of Picea abies (Karsten) from historical object sample HOF11791-4

Jutta Hofmann
Species PCAB; No of rings 62; Begin 1711; End 1772

Tree-ring width of Picea abies (Karsten) from historical object sample HOF12634-31

Jutta Hofmann
Species PCAB; No of rings 73; Begin 1515; End 1587

High-resolution sediment record from a submarine meandering canyon system in the eastern Atlantic, supplement to: Zühlsdorff, Christine; Hanebuth, Till J J; Henrich, Rüdiger (2008): Persistent quasi-periodic turbidite activity off Saharan Africa and its comparability to orbital and climate cyclicities. Geo-Marine Letters, 28(2), 87-95

Christine Zühlsdorff, Till J J Hanebuth & Rüdiger Henrich
Based on a high-resolution sediment record from a submarine meandering canyon system offshore the present-day hyperarid Saharan Africa, two phases of turbidity-current activity can be distinguished during the past 13,000 years. Frequent, siliciclastic turbidity currents can be related to deglacial sea-level history, whereas rhythmically recurring fine-grained and carbonate-rich turbidity currents with recurrence times of roughly 900 years are inferred for the Holocene. Various trigger mechanisms can be considered to initiate turbidity currents, but only a...

Tree-ring width of Pinus sylvestris (von Linné) from historical object sample HOH1098-2486

Michael Friedrich
Species PISY; No of rings 123; Begin 1665; End 1787

Basic measurements of radiation at station Bondville (2002-01)

John Deluisi
Version 2, 2009-06-15

Tree-ring width of Picea abies (Karsten) from historical object sample HOF13018-2

Jutta Hofmann
Species PCAB; No of rings 64; Begin 1715; End 1778

(Table 2) Age determination of sediment core HU77-154

John T Andrews, Helmut Erlenkeuser, L W Evans, W M Briggs & A J Timothy Jull

Stable oxygen and carbon isotope ratios of Globigerinoides ruber white in sediment core GIK17939-1

Luejiang Wang, Michael Sarnthein, Helmut Erlenkeuser, Joan O Grimalt, Pieter Meiert Grootes, S Heilig, Elena V Ivanova, Markus Kienast, Carles Pelejero & Uwe Pflaumann

(Table 2) Age determination of sediment core HU77-156

John T Andrews, Helmut Erlenkeuser, L W Evans, W M Briggs & A J Timothy Jull

Stable oxygen and carbon isotope ratios of Globigerinoides ruber white in sediment core GIK17957-2

Luejiang Wang, Michael Sarnthein, Helmut Erlenkeuser, Joan O Grimalt, Pieter Meiert Grootes, S Heilig, Elena V Ivanova, Markus Kienast, Carles Pelejero & Uwe Pflaumann

(Table 2) Age determination of sediment core HU77-149

John T Andrews, Helmut Erlenkeuser, L W Evans, W M Briggs & A J Timothy Jull

(Table 2) Age determination of sediment core HU77-151

John T Andrews, Helmut Erlenkeuser, L W Evans, W M Briggs & A J Timothy Jull

(Table A1) Comparison of stable isotopic values for Neogloboquadrina pachyderma from sediment core HU84-008

John T Andrews, Helmut Erlenkeuser, L W Evans, W M Briggs & A J Timothy Jull

(Table 2) C-14 age data from ODP Hole 145-883, supplement to: Sarnthein, Michael; Kiefer, Thorsten; Grootes, Pieter Meiert; Elderfield, Henry; Erlenkeuser, Helmut (2006): Warmings in the far northwestern Pacific promoted pre-Clovis immigration to America during Heinrich event 1. Geology, 34(3), 141-144

Michael Sarnthein, Thorsten Kiefer, Pieter Meiert Grootes, Henry Elderfield & Helmut Erlenkeuser
Well-dated multidecadal- to centennial-scale sediment records from the subarctic northwest Pacific show that the early deglacial 18.5-15.0 ka was marked by 3 pronounced short-term warmings of ~5°C. They lasted 500-1500 yr each and were coeval with early to late stages of cold Heinrich event 1 in the North Atlantic. These regional climate windows may have promoted a pre-Clovis emigration of people from the cold-arid monsoon climate in East Asia to the climatically more favorable, then-emerged...

Carbon, boron and oxygen isotope ratios of sediments from the Moresby Seamount, supplement to: Kopf, Achim J; Behrmann, Jan Hinrich; Deyhle, Annette; Roller, Sybille; Erlenkeuser, Helmut (2003): Isotopic evidence (B, C, O) of deep fluid processes in fault rock from the active Woodlark Basin detachment zone. Earth and Planetary Science Letters, 208(1-2), 51-68

Achim J Kopf, Jan Hinrich Behrmann, Annette Deyhle, Sybille Roller & Helmut Erlenkeuser
We report results from boron, carbon and oxygen stable isotope analyses of faulted and veined rocks recovered by scientific ocean drilling during ODP Leg 180 in the western Woodlark Basin, off Papua New Guinea. In this area of active continental extension, crustal break-up and incipient seafloor spreading, a shallow-dipping, seismically active detachment fault accommodates strain, defining a zone of mylonites and cataclasites, vein formation and fluid infiltration. Syntectonic microstructures and vein-fill mineralogy suggest frictional heating...

(Table A2) Comparison of stable isotopic values of Neogloboquadrina pachyderma from sediment core HU77-151

John T Andrews, Helmut Erlenkeuser, L W Evans, W M Briggs & A J Timothy Jull

Stable oxygen and carbon isotope ratios of Globigerinoides ruber white in sediment core GIK17928-3

Luejiang Wang, Michael Sarnthein, Helmut Erlenkeuser, Joan O Grimalt, Pieter Meiert Grootes, S Heilig, Elena V Ivanova, Markus Kienast, Carles Pelejero & Uwe Pflaumann

Stable carbon and oxygen isotope ratios of foraminifera from Holocene sediments of the North Atlantic, supplement to: Millo, Christian; Sarnthein, Michael; Voelker, Antje H L; Erlenkeuser, Helmut (2006): Variability of the Denmark Strait Overflow during the Last Glacial Maximum. Boreas, 35(1), 50-60

Christian Millo, Michael Sarnthein, Antje H L Voelker & Helmut Erlenkeuser
The Denmark Strait Overflow (DSO) today compensates for the northward flowing Norwegian and Irminger branches of the North Atlantic Current that drive the Nordic heat pump. During the Last Glacial Maximum (LGM), ice sheets constricted the Denmark Strait aperture in addition to ice eustatic/isostatic effects which reduced its depth (today ~630 m) by ~130 m. These factors, combined with a reduced north-south density gradient of the water-masses, are expected to have restricted or even reversed...

Age determination of sediment cores close to the Strait of Gibralta, supplement to: Zahn, Rainer; Sarnthein, Michael; Erlenkeuser, Helmut (1987): Benthic isotope evidence for changes of the mediterrranean outflow during the late Quaternary. Paleoceanography, 2(6), 543-559

Rainer Zahn, Michael Sarnthein & Helmut Erlenkeuser
A suit of sediment cores close to and south of the Strait of Gibraltar (12°-36°N, 500-2800 m water depth) were analyzed for stable isotopes in epibenthic foraminifers Cibicidoides wuellerstorfi and Planulina ariminensis. During peak glacial times, the data exhibit higher delta13C values of up to 1.6 per mil at intermediate depths near the Strait of Gibraltar (36°N). The values decrease to the south as evidenced by our data, but also to the north as revealed...

Age determination and sedimentation rates of sediment cores in the Laptev Sea, supplement to: Bauch, Henning A; Kassens, Heidemarie; Erlenkeuser, Helmut; Grootes, Pieter Meiert; Thiede, Jörn (1999): Depositional environment of the Laptev Sea (Arctic Siberia) during the Holocene. Boreas, 28(1), 194-204

Henning A Bauch, Heidemarie Kassens, Helmut Erlenkeuser, Pieter Meiert Grootes & Jörn Thiede
The Holocene depositional setting of the Laptev Sea was studied using three marine sediment cores from water depths between 77 and 46 m. Based on sedimentary parameters (TOC content, delta13Corg, sedimentation rates) controlled by radiocarbon age models the palaeoenvironment of a strongly coupled river-shelf system was reconstructed since ~11 ka BP. Caused by a transgressing sea after the last glaciation, all cores reveal progressive decreases in sedimentation rates. Using the sedimentary records of a core...

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