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  • 1
    Online Resource
    Online Resource
    Europäische Fossillagerstätten. (2000)
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Details
    Keywords: Mineralogy. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (264 pages)
    Edition: 1st ed.
    ISBN: 9783642571985
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6302975
    DDC: 780
    Language: German
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    GEOMAR EBL
  • 2
    Electronic Resource
    Electronic Resource
    Quaternary mud turbidites from the South Shetland Trench (West Antarctica): recognition and implications for turbidite facies modelling (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 38 (1991), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: A piston core from the basinal part (depth of 5188 m) of the South Shetland Trench (West Antarctica) yielded a terrigenous mud section 11 m long, which can be subdivided with great precision into turbidite and hemipelagite layers. Mud turbidites (mean bed thickness = 44 cm) alternate regularly with, and are best distinguishable from, their hemipelagite host (mean bed thickness = 17 cm) by the following features: (i) sharp basal contacts; (ii) terrigenous sand-free textures (except basal, well-sorted silt laminae) and the absence of outsized (ice-rafted) components; (iii) a laminated, little to non-bioturbated internal structure; (iv) distinct textural and compositional grading; and (v) marked steps on water-content and sediment-density logs.Mud turbidites recovered from the South Shetland Trench differ from an earlier model mud-turbidite sequence by their: (i) excessive (about six times larger) bed thickness; (ii) complex internal organization, manifested in multiple repetitions (up to four) of the same structural interval(s) in sequential or nonsequential order; (iii) distinctive very fine-grained cap of highly porous clay, rich in fragments of siliceous biogenics; (iv) widespread zones of penesyndepositional deformation; and (v) evidence of flow reversals. These features are interpreted to record deposition from large, muddy turbidity currents subjected to flow transformations, including soliton- and/or seiche-related reversals, induced by ponding and interactions of the flow with the topographical confinements of the trench.It is concluded that‘contained’muddy turbidites cannot be adequately modelled using published sequences. Differentiation of single-model and‘contained’mud turbidites offers obvious advantages in basin analysis and in understanding the plethora of turbidity current-related depositional mechanisms of deep-sea mud.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1991.tb01015.x
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Three hundred eighty thousand year long stable isotope and faunal records from the Red Sea: Influence of global sea level change on hydrography (1996)
    AGU (American Geophysical Union)
    In:  Paleoceanography, 11 (2). pp. 147-156.
    Details
    Publication Date: 2017-01-06
    Description: Stable isotope and faunal records from the central Red Sea show high-amplitude oscillations for the past 380,000 years. Positive δ18O anomalies indicate periods of significant salt buildup during periods of lowered sea level when water mass exchange with the Arabian Sea was reduced due to a reduced geometry of the Bab el Mandeb Strait. Salinities as high as 53‰ and 55‰ are inferred from pteropod and benthic foraminifera δ18O, respectively, for the last glacial maximum. During this period all planktonic foraminifera vanished from this part of the Red Sea. Environmental conditions improved rapidly after 13 ka as salinities decreased due to rising sea level. The foraminiferal fauna started to reappear and was fully reestablished between 9 ka and 8 ka. Spectral analysis of the planktonic δ18O record documents highest variance in the orbital eccentricity, obliquity, and precession bands, indicating a dominant influence of climatically - driven sea level change on environmental conditions in the Red Sea. Variance in the precession band is enhanced compared to the global mean marine climate record (SPECMAP), suggesting an additional influence of the Indian monsoon system on Red Sea climates.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1029/95PA03838
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Seasonal variability of Holocene climate: a palaeolimnological study on varved sediments in Lake Jues (Harz Mountains, Germany) (2018)
    Springer | Springer
    Details
    Publication Date: 2021-03-29
    Keywords: Albrecht-von-Haller-Institut für Pflanzenwissenschaften / Abteilung für Palynologie und Klimadynamik ; Palaeolimnology; Holocene climate; Diatoms; Green algae; Pollen; Karst ; 551
    Language: English
    Type: article , publishedVersion
    Format: application/pdf
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    CITATION GEO-LEO
  • 5
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    Quaternary and Pliocene Turbidites in the Bahamas, Leg 101, Sites 628, 632, and 635 (1988)
    OCEAN DRILLING PROGRAM
    In:  EPIC3Proceedings of the Ocean Drilling Program, 101 Scientific Results, Proceedings of the Ocean Drilling Program Scientific Results, OCEAN DRILLING PROGRAM, 101, pp. 203-212, ISSN: 0884-5891
    Details
    Publication Date: 2018-08-10
    Description: Textural and compositional differences were found between gravity-flow sheets in an open-ocean environment on the northern slope of Little Bahama Bank (Site 628, Pliocene turbidite sequence) and in a closed-basin depositional setting (Site 632, Quaternary turbidite sequence). Mud-supported debris-flow sheets were cored at Site 628. Average mean grain size of the turbidite samples was lower, mud content was higher, and sorting was poorer than in comparable samples from Site 632. This reflects the deposition of proximal, low-energy turbidity currents and debris flows on a base-of- slope carbonate apron. No mud-supported debris-flow sheets were deposited in the investigated sediment sequence of Hole 632A. Many larger turbidity currents from around the margins of Exuma Sound may have reached this central ba- sin setting, depositing sediments that had been transported over longer distances. Planktonic components dominate in the grain-sized fraction (500-1000 fim) of turbidite samples from Hole 628A, while platform detritus is rare. We inter- preted this as resulting from the erosion and reworking of a large area of open-ocean slope sediments by gravity flows. In contrast, large amounts of benthic and platform components were found in the turbidite samples of Hole 632A. This may be explained by the fact that the slopes of the enclosed Exuma Sound are steep, and turbidity currents bypassed much of these slopes through pronounced channels, delivering more shallow-water detritus to the deep basin. Erosion of slope sediments, a possible source area of planktonic detritus, is assumed to be low. The small slope area in relation to the larger surrounding platform areas and lower production of planktonic components in the enclosed waters of Ex- uma Sound may also explain the observed low number of planktonic components at Hole 632A. Turbidite material from both open-ocean and enclosed-basin environments was deposited at Site 635.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
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    PAPER (OA)
  • 6
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    Core documentation PO08-33 (2013)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
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    PAPER (OA)
  • 7
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    Microfossil analysis of sediment cores from Jues-See, Herzberg, Harz, Germany (2004)
    PANGAEA
    In:  EPIC3Albrecht-von-Haller-Institut für Pflanzenwissenschaften, Universität Göttingen, Germany, Bremerhaven, PANGAEA
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/pdf
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    PAPER (OA)
  • 8
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    (Appendix 4) Values of factor analysis from a benthic foraminiferal assemblage in sediment core M5/2_KL15 (2000)
    PANGAEA
    Details
    Publication Date: 2023-03-03
    Keywords: AGE; DEPTH, sediment/rock; Factor 1; Factor 2; Factor 3; Factor 4; Factor analysis; GeoTü; KL; M5/2; M5/2_259KL; M5/2_KL15; Meteor (1986); Paleoceanography at Tübingen University; Piston corer (BGR type)
    Type: Dataset
    Format: text/tab-separated-values, 568 data points
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    DATA PANGAEA
  • 9
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    (Table 3) AMS radiocarbon dates, calibrated age ranges of Lake Jues (2008)
    PANGAEA
    Details
    Publication Date: 2023-03-08
    Keywords: Age, 14C calibrated; Age, 14C conventional; Age, dated; Age, dated material; Age, error; Age, maximum/old; Age, minimum/young; Age model; Age model calibration; Changes in the Geo-Biosphere during the last 15000 years; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; GeoBio15k; Lake_Jues; Lake Jues, Herzberg, Harz, Germany; LakeSedJues_See; Sample, optional label/labor no; Sample code/label; VC; Vibro corer
    Type: Dataset
    Format: text/tab-separated-values, 230 data points
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    DATA PANGAEA
  • 10
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    (Table 8) Characterization of limnological phases in Lake Jues (2008)
    PANGAEA
    Details
    Publication Date: 2023-03-08
    Keywords: Age, maximum/old; Age, minimum/young; Changes in the Geo-Biosphere during the last 15000 years; Circulation; Feature; GeoBio15k; Lake_Jues; Lake Jues, Herzberg, Harz, Germany; LakeSedJues_See; Limnological phase; ORDINAL NUMBER; VC; Vibro corer
    Type: Dataset
    Format: text/tab-separated-values, 116 data points
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    DATA PANGAEA
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