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  • 2005-2009  (2,102,974)
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  • 1
    Publication Date: 2024-04-26
    Description: Abstract
    Description: Main aim of the project was to investigate the local seismicity (distribution and kinematics) within and around the Fergana basin and the Southern Tien Shan in Southern Kyrgistan. In order to achieve this goal a temporary local network was installed between 2009 and 2010. The results derived from this project contributed to decipher the relationship between geodynamics, neotectonic block structures and the occurrence of landslides in this region. Waveform data is available from the GEOFON data centre, under network code 6C, and is fully open.
    Keywords: EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 EARTHQUAKES ; EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 VOLCANIC ACTIVITY ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS 〉 SEISMOLOGICAL STATIONS ; Passive seismic ; Seismometers ; Velocity ; MiniSEED ; GIPP
    Type: Dataset , Seismic Network
    Format: ~300G
    Format: .mseed
    Format: XML
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  • 2
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    PANGAEA
    In:  Supplement to: Denison, S M; Maslin, Mark; Boot, C; Pancost, Richard D; Ettwein, V J (2005): Precession-forced changes in South West African vegetation during Marine Isotope Stages 101-100 (~2.56–2.51 Ma). Palaeogeography, Palaeoclimatology, Palaeoecology, 220(3-4), 375-386, https://doi.org/10.1016/j.palaeo.2005.02.001
    Publication Date: 2024-04-25
    Description: The intensification of Northern Hemisphere Glaciation (iNHG) is one of the critical climate thresholds in the Cenozoic. This study focuses on marine sediments recovered from Marine Isotope Stages 101/100 at the Ocean Drilling Program Site 1083 to assesses the impact of the iNHG on continental southern African vegetation through n-alkane (straight-chain hydrocarbon) abundance and delta13C values. The n-alkane abundance data yield a convoluted signal due to the number of controlling factors such as the source area, transportation routes and vegetation type. The C31 n-alkane delta13C values, however, exhibit a cyclic pattern with a periodicity of c. 20 ka, and are not correlated to the abundance data. It is inferred that the signal does not represent a change in the geographical source of n-alkanes. Instead, we suggest that the variations are caused by water-stress-induced changes in either carbon isotope fractionation during C3 photosynthesis or subtle changes in the proportion of C3 and C4 plants. These changes, unlike variations in oceanographic proxies, closely track precessional forcing factors and are independent of the prevailing obliquity-forced glacial/interglacial cycles. We conclude that the varying monsoon strength, rather than pCO2 or temperature change, forced changes in southern African vegetation during this period.
    Keywords: 175-1083A; Amplitude; Benguela Current, South Atlantic Ocean; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Isotope ratio mass spectrometry; Joides Resolution; Leg175; n-Alkane C27, δ13C; n-Alkane C29, δ13C; n-Alkane C31, δ13C; n-Alkane C33, δ13C; Ocean Drilling Program; ODP; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 116 data points
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  • 3
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    PANGAEA
    In:  Supplement to: Maslin, Mark; Vilela, Naja; Mikkelsen, Naja; Grootes, Pieter Meiert (2005): Causes of catastrophic sediment failures of the Amazon Fan. Quaternary Science Reviews, 24(20-21), 2180-2193, https://doi.org/10.1016/j.quascirev.2005.01.016
    Publication Date: 2024-04-25
    Description: The general Pleistocene architecture of the Amazon Fan has been reconstructed using sediment recovered by Ocean Drilling Program Leg 155. Huge regional mass-transport deposits (MTDs) make up a significant component of the Amazon Fan. These deposits each cover an area over 15,000 km**2 (approximately the size of Jamaica), reach a maximum thickness of 200 m, and consist of ~5000 Gt of sediment. Benthic foraminiferal fauna analysis and sedimentology indicate that the MTDs originated on the continental slope, which is at least 200 km laterally and 1500 m above their present position. Each mass-failure event was formed by the catastrophic failure of the continental slope and has been dated and correlated with climate-induced changes in sea level. Studies of the benthic foraminiferal assemblages in the Amazon Fan has been essential to our reconstruction of the origin and cause of these failures. The MTDs contain rare shelf (Quinqueloculina cf. stalkeri, Brizalina aenariensis, Q. lamarckiana, and Pseudononion atlanticum) and dominant upper-middle bathyal species (cassidulinids and buliminids). We conclude that the MTD originated between 200 and 600 m water depth, approximately the same zone in which gas hydrates occur. We suggest that the glacial MTDs referred to as Deep Eastern MTD (35–37 ka) and Unit R MTD (41–45 ka) correlate with rapid drops in sea level which destabilized continental slope gas-hydrate reservoirs causing catastrophic slope failure. An alternative explanation is required for the deglacial MTDs referred to as Western and Eastern Debris Flows (13–14 ka) which occurred as sea level rose rapidly during the Bølling-Allerød period. We suggest that the deglaciation of the Andes and the consequent enhanced sediment supply coupled with a shift of the depo-centre to the continental shelf, caused over-burdening and thus slope failure. Evidence for a 2 per mil negative d13C shift in both planktonic foraminifera and organic matter coeval with these failures suggest that whatever the cause, there was a large release of methane hydrate associated with each failure.
    Keywords: 155-933A; 155-936A; 155-941A; Bolivinelina translucens; Brizalina aenariensis; Brizalina alata; Brizalina cf. aenariensis; Bulimina aculeata; Bulimina costata; Bulimina gibba; Bulimina marginata; Cassidulina laevigata; Cibicidoides mundulus; Counting 〉63 µm fraction; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Fissurina sp.; Globobulimina turgida; Globocassidulina subglobosa; Islandiella cf. australis; Joides Resolution; Leg155; Lenticulina cultrata; Nonionella opima; Ocean Drilling Program; ODP; Pseudononion atlanticum; Quinqueloculina cf. stalkeri; Quinqueloculina lamarckiana; Sample code/label; South Atlantic Ocean; Stainforthia complanata; Uvigerina peregrina
    Type: Dataset
    Format: text/tab-separated-values, 506 data points
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  • 4
    Publication Date: 2024-04-25
    Keywords: Abundance per unit mass; Axopodorhabdus dietzmannii; Biscutum constans; Broinsonia spp.; Bukrylithus ambiguus; Calcicalathina alta; Calculites percernis; Chiastozygus sp.; Coccospheres; Col_de_Palluel; Cretarhabdus sp.; Cribrosphaerella ehrenbergii; Crucibiscutum hayi; Crucibiscutum salebrosum; DEPTH, sediment/rock; Discorhabdus rotatorius; Eiffellithus gorkae; Eiffellithus sp.; Eiffellithus turriseiffelii; Evenness of species; Gaarderella granulifera; Helenea chiastia; Heterogeneity; Holococcoliths; Indeterminata; Isocrystallithus compactus; Klimagekoppelte Prozesse in meso- und känozoischen Geoökosystemen; Lithraphidites carniolensis; Manivitella pemmatoidea; Nannoconus elongatus; Nannoconus fragilis; Nannoconus regularis; Nannoconus sp.; Nannoconus truitti frequens; Nannoconus truitti rectangularis; Nannoconus truitti truitti; Nutrient index; Orastrum perspicuum; Percivalia fenestrata; Prediscosphaera columnata; Prediscosphaera sp.; Prediscosphaera spinosa; PROFILE; Profile sampling; Repagulum parvidentatum; Retecapsa crenulata; Retecapsa sp.; Retecapsa surirella; Rhagodiscus achlyostaurion; Rhagodiscus angustus; Rhagodiscus asper; Rhagodiscus gallagheri; Rhagodiscus sp.; Rhagodiscus splendens; Rhagodiscus swinnertonii; Rotelapillus crenulatus; Rotelapillus laffittei; Scapholithus fossilis; Seribiscutum bijugum; Seribiscutum cf. gaultensis; Seribiscutum primitivum; Seribiscutum sp.; SFB275; SFB275_campaign; Sollasites cf. lowei; Sollasites horticus; Sollasites sp.; Species richness; Specimen count; Staurolithites angustus; Staurolithites cf. aenigma; Staurolithites crux; Staurolithites ellipticus; Staurolithites gausorhethium; Staurolithites glabra; Staurolithites laffittei; Staurolithites mitcheneri; Staurolithites mutterlosei; Staurolithites sp.; Temperature index; Total counts; Tranolithus exiguus; Tranolithus orionatus; Vocontian Basin, SE France; Watznaueria barnesae; Watznaueria biporta; Watznaueria fossacincta; Watznaueria manivitae; Watznaueria sp.; Zeugrhabdotus bicrescenticus; Zeugrhabdotus cf. trivectis; Zeugrhabdotus diplogrammus; Zeugrhabdotus embergeri; Zeugrhabdotus erectus; Zeugrhabdotus noeliae; Zeugrhabdotus trivectis
    Type: Dataset
    Format: text/tab-separated-values, 4400 data points
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  • 5
    Publication Date: 2024-04-25
    Keywords: 199-1218; AGE; Catapsydrax dissimilis; Catapsydrax unicavus; Chronozone; COMPCORE; Composite Core; Counting 250-355 µm fraction; Dentoglobigerina globularis; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Foraminifera, planktic, other; Globigerina euapertura; Globoquadrina venezuelana; Joides Resolution; Leg199; North Pacific Ocean; Ocean Drilling Program; ODP; Paragloborotalia nana; Paragloborotalia pseudocontinuosa; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 140 data points
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  • 6
    Publication Date: 2024-04-25
    Keywords: AGE; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; DEPTH, sediment/rock; GeoB1720-2; Gravity corer (Kiel type); M20/2; Meteor (1986); Namibia continental slope; SL
    Type: Dataset
    Format: text/tab-separated-values, 154 data points
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  • 7
    Publication Date: 2024-04-25
    Keywords: AGE; Alkenone, unsaturation index UK'37; DEPTH, sediment/rock; GeoB1720-2; Gravity corer (Kiel type); M20/2; Meteor (1986); Namibia continental slope; Sea surface temperature, annual mean; SL; SST calculated from alkenones
    Type: Dataset
    Format: text/tab-separated-values, 72 data points
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  • 8
    Publication Date: 2024-04-25
    Keywords: AGE; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; DEPTH, sediment/rock; GeoB1720-3; M20/2; Meteor (1986); MUC; MultiCorer; Namibia continental slope
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
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  • 9
    Publication Date: 2024-04-25
    Keywords: 199-1218; AGE; Catapsydrax dissimilis, δ13C; Catapsydrax dissimilis, δ18O; Catapsydrax unicavus, δ13C; Catapsydrax unicavus, δ18O; Chiloguembelina cubensis, δ13C; Chiloguembelina cubensis, δ18O; Comment; COMPCORE; Composite Core; Dentoglobigerina globularis, δ13C; Dentoglobigerina globularis, δ18O; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Globoquadrina venezuelana, δ13C; Globoquadrina venezuelana, δ18O; Joides Resolution; Leg199; Mass spectrometer VG Isogas Prism; North Pacific Ocean; Ocean Drilling Program; ODP; Paragloborotalia opima, δ13C; Paragloborotalia opima, δ18O; Paragloborotalia pseudocontinuosa, δ13C; Paragloborotalia pseudocontinuosa, δ18O; Sample code/label; Subbotina eocaena, δ13C; Subbotina eocaena, δ18O
    Type: Dataset
    Format: text/tab-separated-values, 53 data points
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  • 10
    Publication Date: 2024-04-25
    Keywords: 199-1218; AGE; Age model; Chronozone; COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Joides Resolution; Leg199; North Pacific Ocean; Ocean Drilling Program; ODP; Paragloborotalia nana; Paragloborotalia pseudocontinuosa; Planktic foraminifera zone; Sample code/label; Size
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
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