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  • 1
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    PANGAEA
    In:  Supplement to: Ingle, Stephanie; Mahoney, John J; Sato, Hiroshi; Coffin, Millard F; Kimura, Jun-Ichi; Hirano, Naoto; Nakanishi, Masao (2007): Depleted mantle wedge and sediment fingerprint in unusual basalts from the Manihiki Plateau, central Pacific Ocean. Geology 2007 35(7), 35(7), 595-598, https://doi.org/10.1130/G23741A.1
    Publication Date: 2023-06-27
    Description: Numerous large igneous provinces formed in the Pacific Ocean during Early Cretaceous time, but their origins and relations are poorly understood. We present new geochronological and geochemical data on rocks from the Manihiki Plateau and compare these results to those for other Cretaceous Pacific plateaus. A dredged Manihiki basalt gives an 40Ar-39Ar age of 117.9+/-3.5 Ma (2 sigma), essentially contemporaneous with the Ontong Java Plateau ~2500 km to the west, and the possibly related Hikurangi Plateau ~3000 km to the south. Drilled Manihiki lavas are tholeiitic with incompatible trace element abundances similar to those of Ontong Java basalts. These lavas may result from high degrees of partial melting during the main eruptive phase of plateau formation. There are two categories of dredged lavas from the Danger Islands Troughs, which bisect the plateau. The first is alkalic lavas having strong enrichments in light rare earth and large-ion lithophile elements; these lavas may represent late-stage activity, as one sample yields an 40Ar-39Ar age of 99.5+/-0.7 Ma. The second category consists of tholeiitic basalts with U-shaped incompatible element patterns and unusually low abundances of several elements; these basalts record a mantle component not previously observed in Manihiki, Ontong Java, or Hikurangi lavas. Their trace element characteristics may result from extensive melting of depleted mantle wedge material mixed with small amounts of volcaniclastic sediment. We are unaware of comparable basalts elsewhere.
    Keywords: 33-317A; Barium; Caesium; Cerium; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Dysprosium; Erbium; Europium; Gadolinium; Glomar Challenger; Hafnium; Holmium; Lanthanum; Leg33; Lutetium; Neodymium; Niobium; Praseodymium; Rubidium; Samarium; Sample code/label; South Pacific/PLATEAU; Strontium; Terbium; Thermal-ionization multicollector mass spectrometer VG Sector; Thorium; Thulium; Uranium; Ytterbium; Yttrium; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 100 data points
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  • 2
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    Unknown
    PANGAEA
    In:  Supplement to: Sato, Hiroshi (2004): Mineral compositions of MORB from the Australian Antarctic Discordance (AAD): implications for mantle source characteristics. In: Pedersen, RB; Christie, DM; Miller, DJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 187, 1-26, https://doi.org/10.2973/odp.proc.sr.187.202.2004
    Publication Date: 2024-01-09
    Description: The chemical compositions of olivine, plagioclase, pyroxene, and spinel in lavas collected during Ocean Drilling Program Leg 187 in the Australian Antarctic Discordance, Southeast Indian Ridge (41°-46°S, 126°-135°E) were analyzed, and modeling of the theoretical equilibrium petrogenetic conditions between olivine and melt was conducted. The cores of larger olivine phenocrysts, particularly in the isotopic Indian-type mid-ocean-ridge basalt (MORB), are not equilibrated with melt compositions and are considered to be xenocrystic. Larger plagioclase phenocrysts with compositionally reversed zonation are also xenocrystic. The compositions of primary magma were calculated using a "maximum olivine fractionation" model for primitive MORB that should fractionate only olivine. Olivine compositions equilibrated with calculated primary magma and compositions of calculated primary magma suggest that (1) isotopic Pacific-type MORB is more fractionated than Indian-type MORB, (2) Pacific-type MORB was produced by higher degrees of partial melting than Indian-type MORB, and (3) primary magma for Indian-type MORB was segregated from mantle at 10 kbar (~30 km depth), whereas that for Pacific-type MORB was segregated at 15 kbar (~45 km depth).
    Keywords: 187-1153A; 187-1154A; 187-1155A; 187-1155B; 187-1156A; 187-1156B; 187-1157A; 187-1157B; 187-1158B; 187-1158C; 187-1160B; 187-1161A; 187-1161B; 187-1162A; 187-1164A; 187-1164B; DRILL; Drilling/drill rig; Indian Ocean; Joides Resolution; Leg187; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 6 datasets
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  • 3
    Publication Date: 2024-01-09
    Keywords: 187-1155A; 187-1155B; 187-1156A; 187-1160B; 187-1161A; Aluminium oxide; Calcium oxide; Calculated; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Indian Ocean; Iron oxide, FeO; Joides Resolution; Latitude of event; Leg187; Longitude of event; Magnesium number; Magnesium oxide; Manganese oxide; Nickel; Nickel oxide; Number; Ocean Drilling Program; ODP; Olivine; Phosphorus pentoxide; Plagioclase; Potassium oxide; Sample code/label; Sample comment; Silica, particulate; Silicon dioxide; Sodium oxide; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 140 data points
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  • 4
    Publication Date: 2024-01-09
    Keywords: 187-1155A; 187-1156A; 187-1156B; 187-1157A; 187-1160B; 187-1161A; 187-1161B; Aluminium; Aluminium, standard deviation; Aluminium oxide; Aluminium oxide, standard deviation; Calculated; Calculated, Droop 1987; Calculated based on oxygen number; Chromium; Chromium, standard deviation; Chromium(III) oxide; Chromium(III) oxide, standard deviation; Chromium number; Chromium number, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe JEOL JXA-8900; Elements, total; Elements, total, standard deviation; Elevation of event; Event label; Grains, counted/analyzed; Indian Ocean; Iron, standard deviation; Iron 2+; Iron 3+; Iron 3+ number; Iron 3+ number, standard deviation; Iron oxide, Fe2O3; Iron oxide, Fe2O3, standard deviation; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Joides Resolution; Latitude of event; Leg187; Longitude of event; Magnesium; Magnesium, standard deviation; Magnesium number; Magnesium number, standard deviation; Magnesium oxide; Magnesium oxide, standard deviation; Ocean Drilling Program; ODP; Phosphorus; Phosphorus, standard deviation; Sample code/label; Titanium; Titanium, standard deviation; Titanium dioxide; Titanium dioxide, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 423 data points
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  • 5
    Publication Date: 2024-01-09
    Keywords: 187-1155A; 187-1155B; 187-1156A; 187-1160B; 187-1161A; Aluminium oxide; Calcium oxide; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Elements, total; Elevation of event; Event label; Indian Ocean; Iron oxide, Fe2O3; Iron oxide, FeO; Iron oxide, FeO/magnesium oxid, MgO ratio; Joides Resolution; Latitude of event; Leg187; Longitude of event; Magnesium number; Magnesium oxide; Manganese oxide; Method comment; Nickel; Ocean Drilling Program; ODP; Phosphorus pentoxide; Potassium oxide; Reference/source; Sample code/label; Sample code/label 2; Sample comment; Silicon dioxide; Sodium oxide; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 139 data points
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  • 6
    Publication Date: 2024-01-09
    Keywords: 187-1153A; 187-1154A; 187-1155A; 187-1155B; 187-1156A; 187-1156B; 187-1157A; 187-1157B; 187-1160B; 187-1161A; 187-1164A; 187-1164B; Aluminium oxide; Aluminium oxide, standard deviation; Calcium oxide; Calcium oxide, standard deviation; Calculated; Chromium(III) oxide; Chromium(III) oxide, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe JEOL JXA-8900; Elements, total; Elements, total, standard deviation; Elevation of event; Event label; Grains, counted/analyzed; Indian Ocean; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Joides Resolution; Latitude of event; Leg187; Longitude of event; Magnesium number; Magnesium number, standard deviation; Magnesium oxide; Magnesium oxide, standard deviation; Manganese oxide; Manganese oxide, standard deviation; Nickel oxide; Nickel oxide, standard deviation; Ocean Drilling Program; ODP; Potassium oxide; Potassium oxide, standard deviation; Sample code/label; Sample comment; Silicon dioxide; Silicon dioxide, standard deviation; Sodium oxide; Sodium oxide, standard deviation; Titanium dioxide; Titanium dioxide, standard deviation; Vanadium oxide; Vanadium oxide, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 2365 data points
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  • 7
    Publication Date: 2024-01-09
    Keywords: 187-1154A; 187-1155A; 187-1155B; 187-1156A; 187-1156B; 187-1157A; 187-1157B; 187-1158B; 187-1158C; 187-1160B; 187-1161A; 187-1161B; 187-1162A; 187-1164A; 187-1164B; Albite; Albite, standard deviation; Aluminium oxide; Aluminium oxide, standard deviation; Anorthite; Anorthite, standard deviation; Calcium oxide; Calcium oxide, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe JEOL JXA-8900; Elements, total; Elements, total, standard deviation; Elevation of event; Event label; Grains, counted/analyzed; Indian Ocean; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Joides Resolution; Latitude of event; Leg187; Longitude of event; Manganese oxide; Manganese oxide, standard deviation; Ocean Drilling Program; ODP; Orthoclase; Orthoclase, standard deviation; Potassium oxide; Potassium oxide, standard deviation; Sample code/label; Sample comment; Silicon dioxide; Silicon dioxide, standard deviation; Sodium oxide; Sodium oxide, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 3006 data points
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  • 8
    Publication Date: 2024-01-09
    Keywords: 187-1154A; 187-1155A; 187-1155B; 187-1156A; 187-1158B; 187-1158C; 187-1160B; 187-1161A; 187-1162A; 187-1164A; Aluminium oxide; Aluminium oxide, standard deviation; Calcium oxide; Calcium oxide, standard deviation; Calculated; Chromium(III) oxide; Chromium(III) oxide, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe JEOL JXA-8900; Elements, total; Elements, total, standard deviation; Elevation of event; Enstatite; Enstatite, standard deviation; Event label; Ferrosilite; Ferrosilite, standard deviation; Grains, counted/analyzed; Indian Ocean; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Joides Resolution; Latitude of event; Leg187; Longitude of event; Magnesium number; Magnesium number, standard deviation; Magnesium oxide; Magnesium oxide, standard deviation; Manganese oxide; Manganese oxide, standard deviation; Nickel oxide; Nickel oxide, standard deviation; Ocean Drilling Program; ODP; Potassium oxide; Potassium oxide, standard deviation; Sample code/label; Sample comment; Silicon dioxide; Silicon dioxide, standard deviation; Sodium oxide; Sodium oxide, standard deviation; Titanium dioxide; Titanium dioxide, standard deviation; Vanadium oxide; Vanadium oxide, standard deviation; Wollastonite; Wollastonite, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 928 data points
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  • 9
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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