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  • 1980-1984  (1,015,994)
  • 1955-1959  (303,706)
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  • 1
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    (Table 6) Major element compositions and norms of basalts at DSDP Leg 63 Holes (1981)
    PANGAEA
    Details
    Publication Date: 2024-05-16
    Keywords: 63-469; 63-470A; 63-472; 63-472A; 63-473; Albite; Aluminium oxide; Anorthite; Calcium oxide; CIPW Norm; Deep Sea Drilling Project; Diopside; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Elevation of event; Event label; Glomar Challenger; Hypersthene; Ilmenite; Iron oxide, Fe2O3; Iron oxide, FeO; Iron oxide/Magnesium oxide ratio; Latitude of event; Leg63; Longitude of event; Magnesium oxide; Magnetite; Manganese oxide; North Pacific/ABYSSAL FLOOR; North Pacific/ESCARPMENT; North Pacific/Gulf of California/CONT RISE; North Pacific/PLATEAU; Olivine; Orthoclase; Potassium oxide; Quartz; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; Total; Water in rock
    Type: Dataset
    Format: text/tab-separated-values, 325 data points
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  • 2
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    (Table 9) Geochemistry of basalt glasses at DSDP Leg 63 Holes (1981)
    PANGAEA
    Details
    Publication Date: 2024-05-16
    Keywords: 63-469; 63-470A; 63-472; Aluminium oxide; Calcium oxide; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Elevation of event; Event label; Glomar Challenger; Iron oxide, FeO; Iron oxide/Magnesium oxide ratio; Latitude of event; Leg63; Longitude of event; Magnesium oxide; Manganese oxide; North Pacific/ABYSSAL FLOOR; North Pacific/ESCARPMENT; North Pacific/PLATEAU; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; Total
    Type: Dataset
    Format: text/tab-separated-values, 252 data points
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  • 3
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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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  • 4
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    (Table 4) Geochemistry and minerals of diabase at DSDP Holes 63-469 and 63-471 (1981)
    PANGAEA
    Details
    Publication Date: 2024-05-16
    Keywords: 63-469; 63-471; Albite; Aluminium oxide; Anorthite; Calcite; Calcium oxide; CIPW Norm; Deep Sea Drilling Project; Diopside; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Event label; Glomar Challenger; Hypersthene; Ilmenite; Iron oxide, Fe2O3; Iron oxide, FeO; Iron oxide/Magnesium oxide ratio; Leg63; Loss on ignition; Magnesium oxide; Magnetite; Manganese oxide; Nepheline; North Pacific/ESCARPMENT; North Pacific/FAN; Olivine; Orthoclase; Potassium oxide; Quartz; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; Total; Water in rock
    Type: Dataset
    Format: text/tab-separated-values, 243 data points
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  • 5
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    (Table 1) Chemical composition and CIPW norms of basalts at DSDP Site 61-462 (1981)
    PANGAEA
    Details
    Publication Date: 2024-05-16
    Keywords: 61-462; 61-462A; Albite; Aluminium oxide; Anorthite; Apatite; Calcium oxide; Chromium; CIPW Norm; Cobalt; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Enstatite; Event label; Fayalite; Ferrosilite; Forsterite; Glomar Challenger; Ilmenite; Iron oxide, Fe2O3; Iron oxide, FeO; Iron oxide/Magnesium oxide ratio; Leg61; Magnesium oxide; Magnetite; Manganese oxide; Nepheline; Nickel; Orthoclase; Phosphorus pentoxide; Potassium oxide; Quartz; Sample code/label; Silicon dioxide; Sodium oxide; Sulfur, total; Titanium dioxide; Total; Type; Water in rock; Wet chemistry; Wollastonite
    Type: Dataset
    Format: text/tab-separated-values, 288 data points
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  • 6
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    (Table 7) Chemical composition of selected volcanic glass at DSDP Site 57-438 (1980)
    PANGAEA
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    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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  • 7
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    Accumulation rates of Late Cretaceous eolian sediments in DSDP Hole 62-463 in the Mid-Pacific Mountains, central North Pacific Ocean (Table 1) (1981)
    PANGAEA
    In:  Supplement to: Rea, David K; Janecek, Thomas R (1981): Late Cretaceous history of eolian deposition in the Mid-Pacific Mountains, central North Pacific Ocean. Palaeogeography, Palaeoclimatology, Palaeoecology, 36(1-2), 55-67, https://doi.org/10.1016/0031-0182(81)90048-1
    Details
    Publication Date: 2024-05-15
    Description: Eolian dust preserved in deep-sea sediment can provide a direct historical record of global atmospheric circulation. Data from a reasonably complete Upper Cretaceous section of pelagic sediments recovered at DSDP Site 463 in the central North Pacific provides a good record of eolian activity during the time period between about 112 and 66 m.y. ago. We have isolated the eolian component from these sediments, determined its mass accumulation rate and combined these data with the mineralogy of the inorganic fraction determined by others to construct a record of eolian deposition. Volcanic input is significant during Aptian-Albian and Maastrichtian times, otherwise continentally derived minerals dominate. Mass accumulation rates of the continental eolian component range from over 500 mg/cm**2/kyr during the late Albian to a low of 5 mg/cm**2/kyr during Coniacian time. (For comparison, the upper Miocene to Pleistocene rate averages about 20 mg/cm**2/kyr). The temporal pattern of Late Cretaceous eolian accumulation of Site 463 generally matches known changes in sea level, suggesting that source availability is the dominant control of eolian sedimentation during that time.
    Keywords: 62-463; Accumulation rate, dust; Accumulation rate, mass; AGE; Calculated; Calculated from mass/volume; Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Dust, aeolian; Glomar Challenger; Leg62; North Pacific/SEAMOUNT; Sedimentation rate
    Type: Dataset
    Format: text/tab-separated-values, 300 data points
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  • 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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  • 9
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    (Table 3) Survey of Atlantic Ocean DSDP sites for hiatuses PH and NH 1 through NH 7 (1983)
    PANGAEA
    Details
    Publication Date: 2024-05-15
    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; 3-14; 3-15; 3-17; 3-20; 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; Caribbean Sea/BASIN; Caribbean Sea/GAP; Caribbean Sea/RIDGE; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Elevation of event; Event label; Glomar Challenger; Gulf of Mexico/BANK; Gulf of Mexico/PLAIN; Hiatus; Latitude of event; Leg10; Leg11; Leg12; Leg14; Leg15; Leg3; Leg36; Leg37; Leg38; Leg39; Leg4; Leg40; Leg41; Leg42; Leg43; Leg44; Leg45; Leg47; Leg48; Leg49; Longitude of event; 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; 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
    Type: Dataset
    Format: text/tab-separated-values, 448 data points
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  • 10
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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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