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  • 1
    Electronic Resource
    Electronic Resource
    Freshwater chlorophycean algae in recent marine sediments of the Beaufort, Laptev and Kara Seas (Arctic Ocean) as indicators of river runoff (2000)
    Springer
    International journal of earth sciences 89 (2000), S. 470-485 
    Details
    ISSN: 1437-3262
    Keywords: Arctic Ocean Beaufort Sea Laptev Sea Kara Sea Recent sediments Chlorophyte distribution Freshwater discharge
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract. Freshwater chlorophycean algae are characteristic organic-walled microfossils in recent coastal and shelf sediments from the Beaufort, Laptev and Kara seas (Arctic Ocean). The persistent occurrence of the chlorophycean algae Pediastrum spp. and Botryococcus cf. braunii in marine palynomorph assemblages is related to the discharge of freshwater and suspended matter from the large Siberian and North American rivers into the Arctic shelf seas. The distribution patterns of these algae in the marine environments reflect the predominant deposition of riverine sediments and organic matter along the salinity gradient from the outer estuaries and prodeltas to the shelf break. Sedimentary processes overprint the primary distribution of these algae. Resuspension of sediments by waves and bottom currents may transport sediments in the bottom nepheloid layer along the submarine channels to the shelf break. Bottom sediments and microfossils may be incorporated into sea ice during freeze-up in autumn and winter leading to an export from the shelves into the deep sea. The presence of these freshwater algae in sea-ice and bottom sediments in the central Arctic Ocean confirm that transport in sea ice is an important process which leads to a redistribution of shallow water microfossils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005310000127
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Palynological evidence for Miocene climatic cooling in eastern Iceland about 9.8 Myr ago (1983)
    [s.l.] : Nature Publishing Group
    Nature 303 (1983), S. 689-692 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The stratigraphical setting for our studies is the Tertiary lava pile in Iceland which contains plant-bearing clastic beds on either side of the present active volcanic zone9. The Tertiary flora is best known from clastic beds in western Iceland, from which a history of climatic cooling from late ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/303689a0
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    Paper (German National Licenses)
    Fulltext
  • 3
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    The natural resources of San Dieguito and Batiquitos Lagoons (2021)
    California Department of Fish and Game | Sacramento, CA
    In:  http://aquaticcommons.org/id/eprint/547 | 8 | 2020-08-24 03:49:52 | 547 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: The California Department of Fish and Game has played a central role in attempting to protect and enhance the remaining 25% of southern California wetlands which have survived the ingress of urbanization and commercialdevelopment since 1900 (U.S. Dept. Interior, 1972). To this end, the Department has published a series of reports documenting California's coastal wetlands resources, including four covering wetlands in southern California (Upper Newport Bay, Frey et al., 1970; Goleta Slough, Spethet al., 1970; Los Penasquitos Lagoon, Mudie et al., 1974; and San Diego Bay, Browning et al., 1973). The following report is an extension of that effort. (131pp.)
    Keywords: Conservation ; Pollution ; Biology ; Environment ; San Dieguito Lagoon ; Batiquitos Lagoon ; California ; Natural resources ; conservation ; pollution
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    PAPER (OA)
  • 4
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    The natural resources of Los Penasquitos Lagoon (2021)
    California Department of Fish and Game | Sacramento, CA
    In:  http://aquaticcommons.org/id/eprint/548 | 8 | 2020-08-24 03:50:08 | 548 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: The purpose of this report is to document the natural resources of Los Penasquitos Lagoon, San Diego County; to outline and evaluate proposed developments affecting those resources; and to recommend measures that will protect and enhance the lagoon and its environs.The necessity for a report of this nature has become apparent with the progressive destruction of California's coastal wetlands over the past fifty years. These wetland resources, which are virtually irreplaceable, are essential to the continued existence of many forms of resident fish and wildlife and to the preservation of migratory shorebirds and waterfowl. Approximately 60 percent of the tidal wetlands in California has already been destroyed (Speth, 1970); and, it is estimated that only 10 percent isleft of the original acreage of coastal marshland in San Diego County. The future of the remaining wetland habitats continues to be threatened. There is an urgent need, therefore, for sound planning to protect these wetlands and to prevent their otherwise inevitable disappearance as a valuable natural resource. (100pp.)
    Keywords: Conservation ; Pollution ; Biology ; Environment ; Los Penasquitos Lagoon ; California ; Conservation ; Pollution ; natural resources
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    PAPER (OA)
  • 5
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    Age, biostratigraphic and paleomagnetic events at DSDP Leg 94
    PANGAEA
    In:  Supplement to: Baldauf, Jack G; Thomas, Ellen; Clement, Bradford M; Takayama, Toshiaki; Weaver, Philip PE; Backman, Jan; Jenkins, G; Mudie, Peta J; Westberg-Smith, M J (1987): Magnetostratigraphic and biostratigraphic synthesis, Deep Sea Drilling Project Leg 94. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 1159-1205, https://doi.org/10.2973/dsdp.proc.94.146.1987
    Details
    Publication Date: 2023-05-12
    Description: During DSDP Leg 94 sediment was recovered from 22 holes at six sites situated between 37° and 53°N in the North Atlantic. Paleomagnetic, calcareous nannofossil, foraminiferal, diatom, radiolarian, and dinocyst stratigraphic studies were completed. The excellent magnetostratigraphic results, the near-complete recovery, and the abundant fossil content of the sediment allowed refinement of these stratigraphies, especially for the upper Pliocene-Holocene. Because the Leg 94 sites span middle and high North Atlantic latitudes, it is possible to use them to evaluate the synchrony of late Pliocene to Holocene datums.
    Keywords: Deep Sea Drilling Project; DSDP
    Type: Dataset
    Format: application/zip, 6 datasets
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    DATA PANGAEA
  • 6
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    Tab. 1: Radiocarbon ages of samples from the Canadian archipelago (2011)
    PANGAEA
    In:  Supplement to: Mudie, Peta J; Rochon, André; Prins, Maarten Arnoud; Soenarjo, Donny; Troelstra, Simon; Levac, Elisabeth; Scott, David B; Roncaglia, Lucia; Kuijpers, Antoon (2006): Late Pleistocene-Holocene marine geology of nares strait Region: palaeoceanography from foraminifera and dinoflagellate cysts, sedimentology and stable isotopes. Polarforschung, 74(1-3), 169-183, hdl:10013/epic.29931.d001
    Details
    Publication Date: 2023-02-12
    Description: A sediment-sampling program was carried out in the Nares Strait region during the Nares 2001 Expedition to obtain cores for high-resolution palaeoceanographic studies of late Pleistocene-Holocene climate change. Long cores (〉4 m) were obtained from basins near Coburg Island, Jones Sound, John Richardson Fiord off Kane Basin, and in northeastern Hall Basin. Short cores and grab samples were taken on shelves east and west of northern Smith Sound and in Kennedy Channel. Detailed studies of sediment texture, stable isotopes, microfossils and palynomorphs were made on the longest cores from Jones Sound and Hall Basin at the southern and northern ends of the Nares Strait region.
    Keywords: Age, cultural; Age, dated; Age, dated material; Age, dated standard deviation; Age, radiocarbon; Calendar age; Coburg Island, Jones Sound, Canada; DEPTH, sediment/rock; Event label; GC; Gravity corer; LSSL2001-006PC; LSSL2001-79PC; Mass; northeastern Hall Basin, Canada; Sample, optional label/labor no; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 61 data points
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    DATA PANGAEA
  • 7
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    Benthic foraminifera of the Labrador Sea and Buffin Bay
    PANGAEA
    In:  Supplement to: Scott, David B; Mudie, Peta J; de Vernal, Anne; Hillaire-Marcel, Claude; Baki, V; Mackinnon, K D; Medioli, F S; Mayer, Larry A (1989): Lithostratigraphy, biostratigraphy, and stable-isotope stratigraphy of cores from ODP Leg 105 Site surveys, Labrador Sea and Bffin Bay. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 561-582, https://doi.org/10.2973/odp.proc.sr.105.169.1989
    Details
    Publication Date: 2023-05-12
    Description: Trigger weight (TWC) and piston (PC) cores obtained from surveys of the three sites drilled during Ocean Drilling Program (ODP) Leg 105 were studied in detail for benthic foraminiferal assemblages, total carbonate (all sites), planktonic foraminiferal abundances (Sites 645 and 647), and stable isotopes (Sites 646 and 647). These high-resolution data provide the link between modern environmental conditions represented by the sediment in the TWC and the uppermost cores of the ODP holes. This link provides essential control data for interpretating late Pleistocene paleoceanographic records from these core holes. At Site 645 in Baffin Bay, local correlation is difficult because the area is dominated by ice-rafted deposits and by debris flows and/or turbidite sedimentation. At the two Labrador Sea sites (646 and 647), the survey cores and uppermost ODP cores can be correlated. High-resolution data from the site survey cores also provide biostratigraphic data that refine the interpretations compiled from core-catcher samples at each ODP site.
    Keywords: HUD84-030-04; HUD84-030-04TC; HUD85-027-16; HUD85-027-16TC; Labrador Sea; PC; Piston corer; TC; Trigger corer
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 8
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    (Table 5) Paleotemperature estimates for DSDP Hole 81-552A
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 81-552A; AGE; Communality; DEPTH, sediment/rock; Dinoflagellates, total; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg81; North Atlantic/PLATEAU; Sample code/label; Sea surface temperature, summer; Sea surface temperature, summer max; Sea surface temperature, summer min; Sea surface temperature, winter; Sea surface temperature, winter max; Sea surface temperature, winter min
    Type: Dataset
    Format: text/tab-separated-values, 79 data points
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    DATA PANGAEA
  • 9
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    (Table 4) Biostratigraphy and paleomagnetic events from DSDP Site 12-112
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 12-112; Ageprofile Datum Description; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg12; North Atlantic; Sample code/label; Sample code/label 2
    Type: Dataset
    Format: text/tab-separated-values, 37 data points
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    DATA PANGAEA
  • 10
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    (Table 3) Age, biostratigraphic and paleomagnetic events at DSDP Site 94-607
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 94-607; 94-607A; Age model; Age model, optional; Comment; Datum level; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Leg94; North Atlantic/FLANK
    Type: Dataset
    Format: text/tab-separated-values, 451 data points
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    DATA PANGAEA
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