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  • 1975-1979  (357,057)
  • 1979  (183,563)
  • 1977  (173,572)
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  • 1
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    Table 2 (page 260), Average chemical composition of the WALDA nodules (R/V Jean Charcot expedition) (1979)
    PANGAEA
    In:  Supplement to: Pignet, G; Martin, G; Bougault, Henri (1979): Les nodules polymétalliques et la dépollution des eaux (Polymetalic nodules and water depollution). Journal Français d'Hydrologie, 10(3), 179-188, https://archimer.ifremer.fr/doc/00000/5396/4850.pdf
    Details
    Publication Date: 2024-06-14
    Description: Manganese rich polymetallic nodules are used for trace element removal from fresh-water. The theory of kinetics and mechanisms of reactions are discussed for manganese removal. The efficiency of nodules is higher than efficiency related to other manganese removal methods. Pilot units involving continuous processes are discussed.
    Keywords: Atomic absorption spectrometry (AAS); DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Iron; Jean Charcot; Latitude of event; Longitude of event; Manganese; Method/Device of event; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Sample ID; South Atlantic Ocean; WALDA-003_CH20; WALDA-DS17
    Type: Dataset
    Format: text/tab-separated-values, 5 data points
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  • 2
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    Chemical composition of ocean-floor basalts and separated magnetites DSDP Legs 37, 45 and 46 (1979)
    PANGAEA
    In:  Supplement to: Schock, Hans Hartmut (1979): Distribution of rare-earth and other trace elements in magnetites. Chemical Geology, 26(1-2), 119-133, https://doi.org/10.1016/0009-2541(79)90034-2
    Details
    Publication Date: 2024-05-15
    Description: Titanomagnetites separated from 15 different rock samples (including ocean-floor basalts from DSDP Legs 37, 45 and 46) were analyzed together with whole-rock samples by instrumental neutron-activation analysis for Sc, Cr, Co, Zn, Hf, Ta, Th and the REE La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Tm, Yb and Lu. In titanomagnetities from ocean-floor basalts and some other rocks, REE are enriched with respect to the whole-rock composition by factors of between 1.5 and 3 for light REE and between 1.0 and 1.9 for heavy REE; that is, REE with larger ionic radii are preferentially incorporated into the magnetite lattice. Three magnetite samples are REE depleted. Their whole-rock samples contain P in appreciable amounts, so apatite, an important REE-accumulating mineral, could have captured REE to some extent. All titanomagnetites show a marked negative Eu anomaly, this is most probably caused by discrimination of Eu(2+) from the magnetite lattice. Co, Zn, Hf and Ta are significantly enriched in magnetites. The distribution behaviour of Sc and Cr is masked chiefly by the crystallization of clinopyroxene and therefore is not easy to estimate. Ulvöspinel contents of about 70% for the titanomagnetites from ocean-floor basalts were estimated from qualitative microprobe analysis. Ulvöspinel contents of all other samples varied in a wide range from 20% to about 90%. No correlation could be observed between this and the REE contents of the magnetites. Ilmenite exsolution lamellae could only be observed in titanomagnetites from a doleritic basalt from Leg 45.
    Keywords: 37-332A; 37-332B; 45-395A; 46-396B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg37; Leg45; Leg46; North Atlantic/VALLEY
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 3
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    Nd- and Sr- isotope ratios of oceanic basalts (1977)
    PANGAEA
    In:  Supplement to: O'Nions, R K; Hamilton, P J; Evensen, N M (1977): Variations in 143Nd/144Nd and 87Sr/86Sr ratios in oceanic basalts. Earth and Planetary Science Letters, 34(1), 13-22, https://doi.org/10.1016/0012-821X(77)90100-5
    Details
    Publication Date: 2024-05-15
    Description: 143Nd/144Nd ratios have been determined on 37 samples of oceanic basalt, with a typical precision of +/- 2-3 * 10**-5 (2 sigma). Ocean island and dredged and cored submarine basalts are included for which reliable measurements of 87Sr/86Sr ratios exist in the literature or have been measured as part of this study. A strong negative correlation exists between 143Nd/144Nd and 87Sr/86Sr ratios in basalts from Iceland and the Reykjanes Ridge, but such a clear correlation does not exist for samples from the Hawaiian Islands. However, when other ocean island basalts from the Atlantic are included there is an overall correlation between these two parameters. Increases and decreases in Rb/Sr in oceanic basalt source regions have in general been accompanied by decreases and increases respectively in Sm/Nd ratios. The compatibility of the data with single-stage models is assessed and it is concluded that enrichment and depletion events, which are consistent with transfer of silicate melts, are responsible for the observed variation.
    Keywords: 37-332A; 37-332B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg37; North Atlantic/VALLEY
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 4
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    Bulk sediment parameter of surface sediment samples (Table 3) (1979)
    PANGAEA
    In:  Supplement to: Müller, Peter J; Suess, Erwin (1979): Productivity, sedimentation rate, and sedimentary organic matter in the oceans. I.- Organic matter preservation. Deep-Sea Research Part A. Oceanographic Research Papers, 26(12), 1347-1362, https://doi.org/10.1016/0198-0149(79)90003-7
    Details
    Publication Date: 2024-05-15
    Description: Comparison of rates of accumulation of organic carbon in surface marine sediments from the central North Pacific, the continental margins off northwest Africa, northwest and southwest America, the Argentine Basin, and the western Baltic Sea with primary production rates suggests that the fraction of primary produced organic carbon preserved in the sediments is universally related to the bulk sedimentation rate. Accordingly, less than 0.01% of the primary production becomes fossilized in slowly accumulating pelagic sediments [(2 to 6 mm (1000 y)**-1] of the Central Pacific, 0.1 to 2% in moderately rapidly accumulating [2 to 13 cm (1000 y)**-1] hemipelagic sediments off northwest Africa, northwest America (Oregon) and southeast America (Argentina), and 11 to 18% in rapidly accumulating [66 to 140 cm (1000 y)**-1] hemipelagic sediments off southwest America (Peru) and in the Baltic Sea. The emiprical expression: %Org-C = (0.0030*R*S**0.30)/(ps(1-Theta)) implies that the sedimentary organic carbon content (% Org-C) doubles with each 10-fold increase in sedimentation rate (S), assuming that other factors remain constant; i.e., primary production (R), porosity and sediment density (ps). This expression also predicts the sedimentary organic carbon content from the primary production rate, sedimentation rate, dry density of solids, and their porosity; it may be used to estimate paleoproductivity as well. Applying this relationship to a sediment core from the continental rise off northwest Africa (Spanish Sahara) suggests that productivity there during interglacial oxygen isotope stages 1 and 5 was about the same as today but was higher by a factor of 2 to 3 during glacial stages 2, 3, and 6.
    Keywords: 12897; 13939; 13947; Accumulation rate, total organic carbon; Atlantic Ocean; Baltic Sea; BC; BCR; Box corer; Box corer (Reineck); Calculated; Calculated, see reference(s); Calculated from mass/volume; Carbon, organic, total; Density, dry bulk; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Atlantic; Elevation of event; Event label; GIK10127-2; GIK10132-1; GIK10140-1; GIK10141-1; GIK10145-1; GIK10147-1; GIK10175-1; GIK12310-3; GIK12327-4; GIK12328-4; GIK12329-4; GIK12336-1; GIK12337-4; GIK12344-3; GIK12345-4; GIK12347-1; GIK12392-1; GIK13209-2; KAL; KAL15; Kasten corer; Kasten corer 15 cm; Latitude of event; Longitude of event; M12392-1; M25; Meteor (1964); Pacific; PC; Percentage; Peru Continental Margin; Piston corer; Porosity, fractional; Primary production of carbon per area, yearly; Sedimentation rate; V15; V15-141; V15-142; VA-05/4; VA-08/1; VA-10/3; Valdivia (1961); Vema; W7610B-08; W7706; W7706-36; W7706-39; Wecoma
    Type: Dataset
    Format: text/tab-separated-values, 234 data points
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  • 5
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    Composition of chromian diopside megacryst in DSDP Leg 37 basalts (Table 2, 3) (1977)
    PANGAEA
    In:  Supplement to: Donaldson, Colin H; Brown, Roy W (1977): Refractory megacrysts and magnesium-rich melt inclusions within spinel in oceanic tholeiits: indicators of magma mixing and parental magma composition. Earth and Planetary Science Letters, 37(1), 81-89, https://doi.org/10.1016/0012-821X(77)90148-0
    Details
    Publication Date: 2024-05-15
    Description: Refractory megacrysts of olivine, plagioclase, chromian diopside and Cr-Al spinel, which were not in equilibrium with the host oceanic tholeiite on eruption, are present in samples from several dredge sites and DSDP drill sites in the Atlantic and Pacific Oceans. They have multiple origins: (1) cognate or accidental mantle fragments; (2) relict fragments from fractional crystallization of parental liquids considerably more primitive than oceanic tholeiite; and most commonly (3) the fractional crystallization products of such liquids mixed with oceanic tholeiite magma. Melt inclusions in chrome-spinel phenocrysts provide evidence for this postulated Mg- and Ca-rich magma which has counterparts in the Scottish Tertiary Province and in west Greenland.
    Keywords: 37-332A; 37-332B; 37-335; Aluminium oxide; Calcium oxide; Chromium; Chromium(III) oxide; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Enstatite; Event label; Ferrosilite; Glomar Challenger; Iron oxide, Fe2O3; Iron oxide, FeO; Latitude of event; Leg37; Lithology/composition/facies; Longitude of event; Magnesium number; Magnesium oxide; Manganese oxide; North Atlantic; North Atlantic/VALLEY; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; Wollastonite
    Type: Dataset
    Format: text/tab-separated-values, 46 data points
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  • 6
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    (Table XIV-1, Page 137-139) Physical characteristics of manganese nodules collected in the Pacific Ocean during cruise GH76-1 of R/V Hakurei Maru (1977)
    PANGAEA
    In:  Supplement to: Moritani, Tomoyuki; Maruyama, Shuji; Nohara, M; Matsumoto, K; Ogitsu, T; Moriwaki, H (1977): Description, classification and distribution of manganese nodules. In: Mizuno, A (Ed) Deep sea mineral resources investigation in the central-eastern part of the central Pacific Basin, January-March, 1976 (GH76-1 Cruise), Geological Survey of Japan, Cruise Report, 136-158, https://www.gsj.jp/data/cruise-rep/08-14.pdf
    Details
    Publication Date: 2024-05-15
    Description: Nodule samples obtained were described and studied on board for 1) observation of occurrence and morphology in and outside samplers, size classification, measurement of weight and calculation of population density (kg/m2); 2) photographing whole nodules on the plate marked with the frames of unit areas of both 0cean-70 (0.50 m2) and freefall grab (0.13 m2), and that of typical samples on the plate with a 5 cm grid scale: 3) observation of internal structures of the nodules on cut section; and 4) determination of mineral composition by X-ray diffractometer. The relation between nodule types and geological environment or chemical composition was examined by referring to other data of related studies, such as sedimentology. acoustic survey, and chemical analysis.
    Keywords: Calculated from mass/volume; Density; DEPTH, sediment/rock; Dredge, box; DRG_B; Event label; FFGR; Figure; Free-fall grab; GH76-1; GH76-1-C6; GH76-1-C7; GH76-1-C8(N); GH76-1-D137(N); GH76-1-FG10-2; GH76-1-FG1-2; GH76-1-FG12-1; GH76-1-FG12-2; GH76-1-FG15-1; GH76-1-FG15-2; GH76-1-FG16-1; GH76-1-FG16-2; GH76-1-FG17-1; GH76-1-FG17-2; GH76-1-FG19-1; GH76-1-FG19-2; GH76-1-FG20-2; GH76-1-FG21-1; GH76-1-FG21-2; GH76-1-FG22-1; GH76-1-FG22-2; GH76-1-FG23-1; GH76-1-FG25-1; GH76-1-FG25-2; GH76-1-FG27-1; GH76-1-FG27-2; GH76-1-FG28-1; GH76-1-FG28-2; GH76-1-FG29-1; GH76-1-FG29-2; GH76-1-FG30-1; GH76-1-FG30-2; GH76-1-FG31-1; GH76-1-FG31-2; GH76-1-FG32-1; GH76-1-FG32-2; GH76-1-FG32-3; GH76-1-FG32-4; GH76-1-FG32-5; GH76-1-FG32-6; GH76-1-FG32-7; GH76-1-FG32-8; GH76-1-FG4-2; GH76-1-FG5-1; GH76-1-FG5-2; GH76-1-FG6-1; GH76-1-FG6-2; GH76-1-FG7-1; GH76-1-FG7-2; GH76-1-FG8-1; GH76-1-FG8-2; GH76-1-FG9-1; GH76-1-FG9-2; GH76-1-G169; GH76-1-G171; GH76-1-G172; GH76-1-G173; GH76-1-G174; GH76-1-G175; GH76-1-G176; GH76-1-G181; GH76-1-G182; GH76-1-G183; GH76-1-G184; GH76-1-G185-1; GH76-1-G186; GH76-1-G187; GH76-1-G188; GH76-1-G189; GH76-1-G190; GH76-1-G191; GH76-1-G193; GH76-1-G194; GH76-1-G195; GH76-1-G196; GH76-1-P67; GH76-1-P72; GH76-1-P73; Hakurei-Maru (1974); Identification; Mass, netto; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Nodules, mass abundance; O70; Ocean 70 grab; Pacific Ocean; PC; Photo/Video; Piston corer; PV; Shape; Specimen count; Station 403; Station 405; Station 406; Station 406A; Station 407; Station 407A; Station 407A-2; Station 408; Station 408A; Station 408A-1; Station 409; Station 410; Station 411; Station 412; Station 414; Station 414A; Station 414A-1; Station 414A-2; Station 414A-3; Station 417; Station 418; Station 419; Station 420; Station 421; Station 422; Station 423; Station 424; Station 425; Station 426; Station 427; Station 429; Station 430; Station 431; Station 432; Station 433
    Type: Dataset
    Format: text/tab-separated-values, 637 data points
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  • 7
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    Annotated record of the detailed examination of Mn deposits from DSDP Leg 37 (Holes 332B, 334) (1977)
    PANGAEA
    Details
    Publication Date: 2024-05-15
    Description: DSDP Leg 337 was planned as an attemp at deep penetration of the igneous section of the oceanic crust on the western flank of the FAMOUS (Franco- American Mid-Ocean Undersea Study) area of the Mid-Atlantic Ridge at 36°N. Site 332 is located in Deep Drill Valley approximately 30 km west of the axis of the Mid-Atlantic Ridge at 36°52'N latitude. The principal goal at this site was deep penetration into layer 2 of the ocean crust by multiple re-entry. Site 334 was drilled on a steep east-facing slope in a small, deep basin near the middle of magnetic anomaly 5. In this area, breccias with gabbro and peridotite clasts in a nannofossil-foram ooze matrix are interlayered with the plutonic rocks and may reflect exposure of a melange in or near the Median Valley of the Mid- Atlantic Ridge prior to burial by later basaltic extrusions.
    Keywords: 37-332B; 37-334; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Leg37; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/BASIN; North Atlantic/VALLEY; Position; Quantity of deposit; Sample code/label; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 18 data points
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  • 8
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    (Table 3) Sr and Nd-isotope ratios of oceanic basalts from DSDP Site 37-332 (1977)
    PANGAEA
    Details
    Publication Date: 2024-05-15
    Keywords: -; 37-332A; 37-332B; Calculated; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Isotope ratio mass spectrometry; Leg37; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, error; North Atlantic/VALLEY; Samarium-147/Neodymium-144 ratio; Sample code/label; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
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  • 9
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    The distribution of sulfur in oceanic crust with respect to oxidative diagenesis (Table 1) (1979)
    PANGAEA
    In:  Supplement to: Andrews, Anthony J (1979): On the effect of low-temperature seawater-basalt interaction on the distribution of sulfur in oceanic crust, layer 2. Earth and Planetary Science Letters, 46(1), 68-80, https://doi.org/10.1016/0012-821X(79)90066-9
    Details
    Publication Date: 2024-05-15
    Description: A detailed geochemical-petrological examination of layer 2 basalts recovered during Leg 37 of the DSDP has revealed that the original distribution, form and abundance of igneous sulfide have been profoundly altered during low-grade oxidative diagenesis. The net result appears to have been a rather pervasive remobilization of igneous sulfide to form secondary pyrite accompanied by a bulk loss of sulfur equivalent to about 50-60% of the original igneous value, assuming initial saturation. It is suggested that during infiltration of seawater into the massive crystalline rock, igneous sulfide has experienced pervasive oxidation, under conditions of limited oxidation potential, to form a series of unstable, soluble sulfur species, primarily in the form of SO3[2-] and S2O3[2-]. Spontaneous decomposition of these intermediate compounds through disproportionation has resulted in partial reconstitution of the sulfur as secondary pyrite and the generation of SO4[2-] ion, which, due to its kinetic stability, has been lost from the basalt system and ultimately transferred to the ocean. This model not only satisfies the geochemical and petrological observations but also provides a suitable explanation for the highly variable delta34S values which characterize secondary sulfides in deep ocean floor basalts.
    Keywords: 37-332A; 37-332B; 37-333A; 37-335; Color description; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Iron number; Leg37; Lithology/composition/facies; Mineral assemblage; North Atlantic; North Atlantic/VALLEY; ORDINAL NUMBER; Sample code/label; Sample code/label 2; Sulfur, total
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
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  • 10
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    (Table 1) Basement penetration, recovery, and lithology of crustal DSDP holes in the North Atlantic Ocean (1979)
    PANGAEA
    In:  Supplement to: Hall, J Michael; Robinson, Paul T (1979): Deep crustal drilling in the North Atlantic Ocean. Science, 204(4393), 573-586, https://doi.org/10.1126/science.204.4393.573
    Details
    Publication Date: 2024-05-15
    Description: Oceanic crustal drilling by R. V. Glomar Challenger at 15 sites in the North Atlantic has led to a complex picture of the upper half kilometer of the crust. Elements of the picture include the absence of the source for linear magnetic anomalies, marked episodicity of volcanic activity, ubiquitous low temperature alteration and evidence for large scale tectonic disturbance. Comparison sections in the Pacific and much deeper crustal drilling are needed to attack problems arising from the North Atlantic results.
    Keywords: 37-332A; 37-332B; 37-333A; 37-334; 37-335; 45-395; 45-395A; 45-396; 46-396B; 49-407; 49-408; 49-409; 49-410; 49-410A; 49-411; 49-412; 49-412A; 49-413; 51-417A; 51-417D; 52-418A; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Leg37; Leg45; Leg46; Leg49; Leg51; Leg52; Lithology/composition/facies; North Atlantic; North Atlantic/BASIN; North Atlantic/CONT RISE; North Atlantic/FRACTURE ZONE; North Atlantic/RIDGE; North Atlantic/SEDIMENT POND; North Atlantic/VALLEY; Recovery
    Type: Dataset
    Format: text/tab-separated-values, 141 data points
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