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Geochemistry of boninite and harzburgite of ODP Leg 125 basement samples
Holes drilled into the volcanic and ultrabasic basement of the Izu-Ogasawara and Mariana forearc terranes during Leg 125 provide data on some of the earliest lithosphere created... -
Biostratigraphy and magnetostratigraphy of ODP Leg 125 holes
Samples from 15 holes at nine sites in the Izu-Bonin-Mariana region were examined for calcareous nannofossils, foraminifers, diatoms, and radiolarians. The ages of the... -
Paleomagnetic of ODP Leg 125 holes
During Leg 125, scientists drilled three holes (782A, 784A, and 786A) in the Izu-Bonin forearc near 31° N that had sufficient recovery to obtain paleoinclination data. A total... -
Chemistry of Pliocene-Pleistocene pumice from the Izu-Bonin Arc
Thick pumice deposits were found in the cored sequences of forearc, arc, and backarc sites of Leg 126 in the Izu-Bonin Arc. These deposits, composed of fragmental rhyolite... -
Major and trace element composition of sepentine muds and metabasic rocks of ...
New geochemical data on serpentinite muds and metamorphic clasts recovered during Ocean Drilling Program Legs 195 (Holes 1200A-1200E) and 125 (Holes 778A and 779A) provide... -
Iodine and boron concentrations in pore fluids, ultramafic clasts and interst...
Iodine and boron were analyzed in pore fluids, serpentinized ultramafic clasts, and the serpentinized mud matrix of the South Chamorro Seamount mud volcano (Ocean Drilling... -
Geochemistry of the oceanic crust from ocean drilling samples
This book presents new data on chemical and mineral compositions and on density of altered and fresh igneous rocks from key DSDP and ODP holes drilled on the following main... -
(Table 1) Composition of interstitial waters from ODP Leg 125 sites
Pore waters were collected from nine sites during Leg 125 of the Ocean Drilling Program (ODP). The first four sites (778-781) were drilled in the Mariana forearc on and near... -
(Table 4) Trace-element concentrations in serpentine sediments of ODP Hole 12...
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(Table 2) Whole rock geochemistry of ODP Leg 125 samples
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(Table T6) Boron, Beryllium and Lithium concentration of metabasic rocks reco...
Shore based analysis. -
(Table T7) Major and trace elements of metabasic rocks recovered from ODP Sit...
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(Table 1) Osmium concentrations and isotopic ratios for ODP Leg 125 peridotites
Mantle peridotites drilled from the Izu-Bonin-Mariana forearc have unradiogenic 187Os/188Os ratios (0.1193 to 0.1273), which give Proterozoic model ages of 820 to 1230 million... -
Composition of matrix glasses and melt inclusions of fallout tephra from ODP ...
We studied the systematics of Cl, F and H2O in Izu arc front volcanic rocks using basaltic through rhyolitic glass shards and melt inclusions (Izu glasses) from Oligocene to... -
Chemistry and boron isotope ratios of Izu arc front volcanic rocks
The process of fluid release from the subducting slab beneath the Izu arc volcanic front (Izu VF) was examined by measuring B concentrations and B isotope ratios in the Neogene... -
Chlorine concentrations and stable isotope ratios in Izu Bonin tephra
d37Cl values were determined for Izu Bonin arc magmas erupted 0-44 Ma in order to better understand the time-dependent processing of volatiles in subduction zones. Pristine... -
Geochemistry of fallout tephra from ODP Hole 125-782A
Very rare, halogen-rich andesite melt inclusions (HRA) in bytownitic plagioclase phenocrysts (An89–90) from tephra fallout of the Izu arc volcanic front (Izu VF) provide new... -
Major element chemistr yof fallout tephra from ODP Hole 125-782A
New and published analyses of major element oxides (SiO2, TiO2, Al2O3, FeO*, MnO, MgO, CaO, K2O, Na2O and P2O5) from the central Izu Bonin and Mariana arcs (IBM) were compiled... -
(Table 1) Composition of matrix glasses of fallout tephra from ODP Hole 125-782A
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(Table 2) Composition of matrix shards and melt inclusions of fallout tephra ...
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