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  • 1980-1984  (397,223)
  • 1983  (207,234)
  • 1980  (190,062)
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Year
  • 1
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    25 Years of algal growth kinetics : a personal view (1983)
    De Gruyter
    Details
    Publication Date: 2024-06-06
    Type: Article , PeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 2
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    Tetrapodenfährten aus dem Rotliegenden der Wetterau und ihre stratigraphische Auswertung (1983)
    Details
    Publication Date: 2024-05-28
    Description: Aus den Bleichenbach-Schichten der Wetterau werden folgende Fährtentaxa beschrieben und abgebildet: Saurichnites salamandroides Geinitz, 1861, Saurichnites intermedius Fritsch, 1895, Saurichnites incurvatus Fritsch, 1901, Temnospondylen-Fährte unsicherer systematischer Stellung, cf. Hyloidichnus major (Heyler & Lessertisseur, 1963), Amphisauroides discessus Haubold, 1970, Varanopus microdactylus (Pabst, 1896), Ichniotherium cottae (Pohlig, 1885), Dimetropus leisnerianus (Geinitz, 1863), Gilmo- reichnus kablikae (Geinitz & Deichmüller, 1882), cf. Gilmoreichnus minimus Haubold, 1973, Protritonichnites lacertoides (Geinitz, 1861), Anhomoiichnium orobicum Dozy, 1935, Palmichnus renisus Schmidt, 1959, Laoporus sp. und Jacobiichnus caudifer (Fritsch, 1895). Die Fährtengemeinschaft erlaubt eine Parallelisierung der Bleichenbach-Schichten mit dem oberen Teil der Nahe-Gruppe des Saar-Nahe-Gebietes.
    Description: Abstract: From the Bleichenbach beds of the Wetterau area (lower Permian, SW-Germany) the following ichnotaxa are described and figured: Saurichnites salamandroides Geinitz, 1861, Saurichnites intermedius Fritsch, 1895, Saurichnites incurvatus Fritsch, 1901, temnospondyl-trackway of uncertain systematic range, cf . Hyloidichnus major (Heyler & Lessertisseur, 1963), Amphisauroides discessus Haubold, 1970, Varanopus microdactylus (Pabst, 1896), Ichniotherium cottae (Pohlig, 1885), Dimetropus leisnerianus (Geinitz, 1863), Gilmoreichnus kablikae (Geinitz & Deichmüller, 1882), cf. Gilmoreichnus minimus Haubold, 1973, Protritonichnites lacertoides (Geinitz, 1861), Anhomoiichnium orobicum Dozy, 1935, Palmichnus renisus Schmidt, 1959, Laoporus sp. and Jacobiichnus caudifer (Fritsch, 1895). This trackway-assemblage permits a correlation of the Bleichenbach beds with the upper part of the Nahe Group of the Saar-Nahe Basin.
    Description: 1. Einleitung 2. Vorkommen 3. Terminologie 4. Kurzbeschreibung der Fährten 4.1. Amphibien-Fährten 4.1.1. Saurichnites salamandroides Geinitz, 1861 4.1.2. Saurichnites intermedius Fritsch, 1895 4.1.3. Saurichnites incurvatus Fritsch, 1901 4.1.4. Temnospondylen- Fährte unsicherer systematischer Stellung 4.2. Reptil-Fährten 4.2.1. cf. Hyloidichnus major (Heyler & Lessertisseur, 1963) 4.2.2. Amphisauroides discessus Haubold, 1970 4.2.3. Varanopus microdactylus (Pabst, 1896) 4.2.4. Ichniotherium cottae (Pohlig, 1885) 4.2.5. Dimetropus leisnerianus (Geinitz, 1863) 4.2.6. Gilmoreichnus kablikae (Geinitz & Deichmüller, 1882) 4.2.7. cf. Gilmoreichnus minimus Haubold, 1973 142 4.2.8. Protritonichnites lacertoides (Geinitz, 1861) 4.2.9. Anhomoiichnium orobicum Dozy, 1935 4.2.10. Palmichnus renisus Schmidt, 1959 4.2.11. Laoporussp 4.2.12. Jacobiichnus caudifer (Fritsch, 1895) 5. Fossilinhalt der einzelnen Fundhorizonte 6. Biostratigraphische Auswertung der Fährten 7. Zusammenfassung und Diskussion der Ergebnisse Schriften
    Description: research
    Keywords: ddc:560 ; Hessen ; Rotliegend ; Fährten ; Tetrapoden
    Language: German
    Type: doc-type:article , publishedVersion
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    CITATION GEO-LEO
  • 3
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    Hydrographic measurements during the GEOSECS Indian Ocean expedition (1983)
    PANGAEA
    Details
    Publication Date: 2024-05-22
    Keywords: Bottle number; Campaign of event; Cast number; Comment; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Elevation of event; Event label; Gear; Geochemical Ocean Sections Study; GEOSECS; GEOSECS_Indian_Ocean_3; GEOSECS_Indian_Ocean_4; GEOSECS_Indian_Ocean_5; GEOSECS_Indian_Ocean_6; GEOSECS_Indian_Ocean_7; GEOSECS403; GEOSECS404; GEOSECS405; GEOSECS407; GEOSECS408; GEOSECS409; GEOSECS410; GEOSECS411; GEOSECS412; GEOSECS413; GEOSECS414; GEOSECS415; GEOSECS416; GEOSECS417; GEOSECS418; GEOSECS419; GEOSECS420; GEOSECS421; GEOSECS422; GEOSECS423; GEOSECS424; GEOSECS425; GEOSECS426; GEOSECS427; GEOSECS428; GEOSECS429; GEOSECS430; GEOSECS431; GEOSECS432; GEOSECS433; GEOSECS434; GEOSECS435; GEOSECS436; GEOSECS437; GEOSECS438; GEOSECS439; GEOSECS440; GEOSECS441; GEOSECS442; GEOSECS443; GEOSECS444; GEOSECS445; GEOSECS446; GEOSECS447; GEOSECS448; GEOSECS449; GEOSECS450; GEOSECS451; GEOSECS452; GEOSECS453; GEOSECS454; Indian Ocean; Latitude of event; Leg 3; Leg 4; Leg 5; Leg 6; Leg 7; Longitude of event; Melville; Nitrate; Oxygen; Phosphate; Pressure, water; Salinity; Silicate; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 24281 data points
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    DATA PANGAEA
  • 4
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    Göttinger Bodenkundliche Berichte 76 (1983)
    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Details
    Publication Date: 2024-05-20
    Description: research
    Keywords: Bioelementbilanzen ; Transport ; Sand-Lysimetern ; Grundwasserständen
    Language: German
    Type: doc-type:book
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    CITATION GEO-LEO
  • 5
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    Göttinger Bodenkundliche Berichte 78 (1983)
    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Details
    Publication Date: 2024-05-20
    Description: research
    Keywords: Eutrophierung ; Düngemittel ; Bodenschutz ; Nährstoffauswaschung ; Stoffübertragung ; Phosphathaushalt ; Saurer Boden
    Language: German
    Type: doc-type:book
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    CITATION GEO-LEO
  • 6
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    (Table 6) Geochemistry of basalts at DSDP Hole 83-504B (1983)
    PANGAEA
    Details
    Publication Date: 2024-05-16
    Keywords: 83-504B; Alteration; Aluminium oxide; Calcium oxide; Calcium oxide/Sodium oxide; Chromium; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Gallium; Glomar Challenger; Group; Iron oxide, Fe2O3; Iron oxide, FeO; Iron oxide/Magnesium oxide ratio; Leg83; Magnesium number; Magnesium oxide; Manganese oxide; Microprobe; Nickel; Niobium; Phosphorus pentoxide; Potassium oxide; Rubidium; Sample, optional label/labor no; Sample code/label; see reference(s); Silicon dioxide; Sodium oxide; Strontium; Titanium dioxide; Total; Type; Vanadium; X-ray fluorescence (XRF); Yttrium; Zinc; Zirconium; Zirconium/Yttrium ratio
    Type: Dataset
    Format: text/tab-separated-values, 1826 data points
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    DATA PANGAEA
  • 7
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    (Table 7) Chemical composition of selected volcanic glass at DSDP Site 57-438 (1980)
    PANGAEA
    Details
    Publication Date: 2024-05-16
    Keywords: 57-438; 57-438A; Aluminium oxide; Calcium oxide; Calcium oxide/Sodium oxide; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Event label; Glomar Challenger; Iron oxide, Fe2O3; Iron oxide, FeO; Iron oxide/Magnesium oxide ratio; Layer number; Leg57; Magnesium oxide; Manganese oxide; North Pacific/BASIN; Potassium oxide; Potassium oxide/Sodium oxide ratio; Ratio; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; Total
    Type: Dataset
    Format: text/tab-separated-values, 300 data points
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    DATA PANGAEA
  • 8
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    Amino acid in Deep Sea Drilling Project cores (1980)
    PANGAEA
    In:  Supplement to: Bada, Jeffrey L; Man, Eugene H (1980): Amino acid diagenesis in Deep Sea Drilling Project cores: Kinetics and mechanisms of some reactions and their applications in geochronology and in paleotemperature and heat flow determinations. Earth-Science Reviews, 16(1), 21-55, https://doi.org/10.1016/0012-8252(80)90003-3
    Details
    Publication Date: 2024-05-15
    Description: Several amino acid diagenetic reactions, which take place in the deep-sea sedimentary environment, were investigated, using various Deep Sea Drilling Project (DSDP) cores. Initially it was found that essentially all the amino acids in sediments are bound in peptide linkages; but, with increasing age, the peptide bonds undergo slow hydrolysis that results in an increasingly larger fraction of amino acids in the free state. The hydrolysis half-life in calcareous sediments was estimated to be ~1–2 million years, while in non-carbonate sediment the hydrolysis rate may be considerably slower. The amino acid compositions and the extent of racemization of several amino acids were determined in various fractions isolated from the sediments. These analyses demonstrated that the mechanism, kinetics, and rate of amino acid diagenesis are highly dependent upon the physical state (i.e., free, bound, etc.) in which the amino acids exist in the sedimentary environment. In the free state, serine and threonine were found to decompose primarily by a dehydration reaction, while in the bound state (residue or HCl-insoluble fraction) a reversible aldol-cleavage reaction is the main decomposition pathway of these amino acids. The change in amino acid composition of the residue fraction with time was suggested to be due to the hydrolysis of peptide bonds, while in foraminiferal tests the compositional changes over geological time are the result of various decomposition reactions. Reversible first-order racemization kinetics are not observed for free amino acids in sediments. The explanation for these anomalous kinetics involves a complex reaction series which includes the hydrolysis of peptide bonds and the very rapid racemization of free amino acids. The racemization rates of free amino acids in sediments were found to be many orders of magnitude faster than those predicted from elevated temperature experiments using free amino acids in aqueous solution. The racemization rate enhancement of free amino acids in sediments may be due to the catalysis of the reaction by trace metals. Reversible first-order kinetics are followed for amino acids in the residue fraction isolated from sediments; the rate of racemization in this fraction is slower than that predicted for protein-bound amino acids. Various applications of amino acid diagenetic reactions are discussed. Racemization and the decomposition reaction of serine and threonine can both be used, with certain limitations, to make rough age estimates of deep-sea sediments back to several million years. The extent of racemization in foraminiferal tests which have been dated by some other independent technique can be used to estimate geothermal gradients, and thus heat flows, and to evaluate the bottom water temperature history in certain oceanic areas.
    Keywords: 15-148; 15-149; 25-241; 25-242; 25-249; 27-262; 37-332; 37-332A; 37-333; Caribbean Sea/BASIN; Caribbean Sea/RIDGE; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Indian Ocean//BASIN; Indian Ocean//CHANNEL; Indian Ocean//RIDGE; Indian Ocean//TROUGH; Leg15; Leg25; Leg27; Leg37; North Atlantic/VALLEY
    Type: Dataset
    Format: application/zip, 4 datasets
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    DATA PANGAEA
  • 9
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    Occurrence of hiatuses PH and NH 1 through NH 7 in DSDP holes (1983)
    PANGAEA
    In:  Supplement to: Keller, Gerta; Barron, John A (1983): Paleoceanographic implications of Miocene deep-sea hiatuses. Geological Society of America Bulletin, 94(5), 590-613, https://doi.org/10.1130/0016-7606(1983)94%3C590:PIOMDH%3E2.0.CO;2
    Details
    Publication Date: 2024-05-15
    Description: Miocene paleoceanographic evolution exhibits major changes resulting from the opening and closing of passages, the subsequent changes in oceanic circulation, and development of major Antarctic glaciation. The consequences and timing of these events can be observed in variations in the distribution of deep-sea hiatuses, sedimentation patterns, and biogeographic distribution of planktic organisms. The opening of the Drake Passage in the latest Oligocene to early Miocene (25-20 Ma) resulted in the establishment of the deep circumpolar current, which led to thermal isolation of Antarctica and increased global cooling. This development was associated with a major turnover in planktic organisms, resulting in the evolution of Neogene assemblages and the eventual extinction of Paleogene assemblages. The erosive patterns of two widespread hiatuses (PH, 23.0-22.5 Ma; and NH 1, 20-18 Ma) indicate that a deep circumequatorial circulation existed at this time, characterized by a broad band of carbonate-ooze deposition. Siliceous sedimentation was restricted to the North Atlantic and a narrow band around Antarctica. A major reorganization in deep-sea sedimentation and hiatus distribution patterns occurred near the early/middle Miocene boundary, apparently resulting from changes in oceanic circulation. Beginning at this time, deep-sea erosion occurred throughout the Caribbean (hiatus NH 2, 16-15 Ma), suggesting disruption of the deep circumequatorial circulation and northward deflection of deep currents, and/or intensification of the Gulf Stream. Sediment distribution patterns changed dramatically with the sudden appearance of siliceous-ooze deposition in the marginal and east equatorial North Pacific by 16.0 to 15.5 Ma, coincident with the decline of siliceous sedimentation in the North Atlantic. This silica switch may have been caused by the introduction of Norwegian Overflow Water into the North Atlantic acting as a barrier to outcropping of silica-rich Antarctic Bottom Water. The main aspects of the present oceanic circulation system and sediment distribution pattern were established by 13.5 to 12.5 Ma (hiatus NH 3), coincident with the establishment of a major East Antarctic ice cap. Antarctic glaciation resulted in a broadening belt of siliceous-ooze deposition around Antarctica, increased siliceous sedimentation in the marginal and east equatorial North Pacific and Indian Oceans, and further northward restriction of siliceous sediments in the North Atlantic. Periodic cool climatic events were accompanied by lower eustatic sea levels and widespread deep-sea erosion at 12 to 11 Ma (NH 4), 10 to 9 Ma (NH 5), 7.5 to 6.2 Ma (NH 6), and 5.2 to 4.7 Ma (NH 7).
    Keywords: 10-90; 10-97; 11-101; 11-102; 11-103; 11-104; 12-111; 12-116; 12-119; 14-141; 14-142; 15-149; 15-150; 15-151; 15-153; 15-154; 16-155; 16-157; 16-158; 16-159; 16-160; 16-161; 16-162; 16-163; 17-164; 17-165; 17-166; 17-168; 17-170; 17-171; 18-172; 18-173; 19-183; 19-192; 20-199; 20-200; 20-202; 21-205; 21-206; 21-207; 21-208; 21-209; 21-210; 22-212; 22-213; 22-214; 22-215; 22-216; 22-218; 23-220; 23-221; 23-223; 23-224; 24-231; 24-234; 24-236; 24-237; 24-238; 26-251; 26-253; 26-254; 26-255; 26-256; 26-257; 26-258; 27-259; 28-264; 28-265; 28-266; 28-273; 28-274; 29-275; 29-276; 29-277; 29-278; 29-279; 29-280; 29-281; 29-282; 29-283; 29-284; 30-285; 30-286; 30-287; 30-288; 30-289; 31-290; 31-292; 31-296; 3-14; 3-15; 3-17; 3-20; 32-304; 32-305; 32-306; 32-307; 32-308; 32-310; 32-311; 32-313; 33-315; 33-316; 33-317; 33-318; 34-319; 36-327; 36-328; 36-329; 37-334; 38-336; 38-338; 38-339; 38-352; 39-354; 39-355; 39-356; 39-357; 39-359; 40-360; 40-362; 40-363; 40-364; 41-366; 41-368; 41-369; 42-372; 4-25; 4-29; 4-30; 43-386; 44-391; 45-396; 47-397; 47-398; 48-400; 48-404; 48-405; 48-406; 49-407; 49-408; 49-410; 5-34; 5-36; 5-38; 5-39; 5-40; 5-41; 5-42; 55-430; 55-431; 55-432; 55-433; 56-436; 57-438; 57-439; 57-440; 58-443; 58-444; 58-445; 59-447; 59-448; 59-449; 59-450; 59-451; 61-462; 62-463; 62-464; 62-465; 62-466; 63-467; 63-468; 63-469; 63-470; 63-471; 63-472; 6-45; 6-46; 6-47; 6-48; 6-49; 6-50; 6-51; 6-52; 6-53; 6-55; 6-56; 67-495; 68-503; 7-61; 7-62; 7-63; 7-64; 7-65; 7-66; 7-67; 8-68; 8-69; 8-70; 8-71; 8-72; 8-73; 8-74; 8-75; 9-77; 9-78; 9-79; 9-83; 9-84; Antarctic Ocean; Antarctic Ocean/BASIN; Antarctic Ocean/CONT RISE; Antarctic Ocean/PLATEAU; Antarctic Ocean/RIDGE; Antarctic Ocean/Tasman Sea; Antarctic Ocean/Tasman Sea/CONT RISE; Antarctic Ocean/Tasman Sea/PLATEAU; Antarctic Ocean/Tasman Sea/RIDGE; Caribbean Sea/BASIN; Caribbean Sea/GAP; Caribbean Sea/RIDGE; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Gulf of Mexico/BANK; Gulf of Mexico/PLAIN; Indian Ocean//BASIN; Indian Ocean//FAN; Indian Ocean//FRACTURE ZONE; Indian Ocean//PLATEAU; Indian Ocean//RIDGE; Indian Ocean/Arabian Sea/HILL; Indian Ocean/Arabian Sea/PLAIN; Indian Ocean/Arabian Sea/RIDGE; Indian Ocean/Gulf of Aden/BASIN; Leg10; Leg11; Leg12; Leg14; Leg15; Leg16; Leg17; Leg18; Leg19; Leg20; Leg21; Leg22; Leg23; Leg24; Leg26; Leg27; Leg28; Leg29; Leg3; Leg30; Leg31; Leg32; Leg33; Leg34; Leg36; Leg37; Leg38; Leg39; Leg4; Leg40; Leg41; Leg42; Leg43; Leg44; Leg45; Leg47; Leg48; Leg49; Leg5; Leg55; Leg56; Leg57; Leg58; Leg59; Leg6; Leg61; Leg62; Leg63; Leg67; Leg68; Leg7; Leg8; Leg9; Mediterranean Sea/BASIN; North Atlantic/BASIN; North Atlantic/CONT RISE; North Atlantic/CONT SLOPE; North Atlantic/DIAPIR; North Atlantic/KNOLL; North Atlantic/Norwegian Sea; North Atlantic/Norwegian Sea/DIAPIR; North Atlantic/Norwegian Sea/PLATEAU; North Atlantic/PLAIN; North Atlantic/PLATEAU; North Atlantic/RIDGE; North Atlantic/SEAMOUNT; North Atlantic/SEDIMENT POND; North Pacific; North Pacific/ABYSSAL FLOOR; North Pacific/BASIN; North Pacific/CONT RISE; North Pacific/ESCARPMENT; North Pacific/FAN; North Pacific/FLANK; North Pacific/GAP; North Pacific/GUYOT; North Pacific/HILL; North Pacific/Philippine Sea/BASIN; North Pacific/Philippine Sea/CONT RISE; North Pacific/Philippine Sea/RIDGE; North Pacific/PLAIN; North Pacific/PLATEAU; North Pacific/RIDGE; North Pacific/SEAMOUNT; North Pacific/SEDIMENT POND; North Pacific/SLOPE; North Pacific/TERRACE; North Pacific/TRENCH; North Pacific/VALLEY; South Atlantic; South Atlantic/BANK; South Atlantic/BASIN; South Atlantic/CONT RISE; South Atlantic/HILL; South Atlantic/PLATEAU; South Atlantic/RIDGE; South Atlantic/SEAMOUNT; South Atlantic/SYNCLINE; South Atlantic/VALLEY; South Pacific; South Pacific/BASIN; South Pacific/CONT RISE; South Pacific/Coral Sea; South Pacific/Coral Sea/BASIN; South Pacific/Coral Sea/PLATEAU; South Pacific/PLATEAU; South Pacific/RIDGE; South Pacific/Tasman Sea/BASIN; South Pacific/Tasman Sea/CONT RISE
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 10
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    (Table VII) Extent of isoleucine racemization in foraminifera isolated from various depth in the sedimentary column (1980)
    PANGAEA
    Details
    Publication Date: 2024-05-15
    Keywords: -; 15-148; 25-242; 27-262; 37-332A; 37-333; AGE; Alloisoleucine/leucine ratio; Caribbean Sea/RIDGE; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Indian Ocean//CHANNEL; Indian Ocean//TROUGH; Leg15; Leg25; Leg27; Leg37; North Atlantic/VALLEY; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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    DATA PANGAEA
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