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Mineral composition of bulk sediment from Hole 66-493
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Petrology, geochemistry, and geodynamics at DSDP Hole 66-493
At Site 493, DSDP Leg 66, dioritic basement was reached below lower Miocene (NN1 Zone, 22-24 Ma) terrigenous sediments. Petrographical, mineralogical (including microprobe... -
Geochemistry and minerals of glass shards at DSDP Leg 66 Holes
Deep Sea Drilling Project Leg 66 drilled eight sites along a transect across the Middle America Trench off Mexico, including continental (Sites 493 and 489), oceanic (Site 487),... -
Distribution, origin, and hydrocarbon-potential of organic matter in sediment...
As part of an ongoing program of organic geochemical studies of sediments recovered by the Deep Sea Drilling Project, we have analyzed the types, amounts, and thermal alteration... -
Geotechnical properties at DSDP Leg 66 Holes
Delineating the interrelationships between tectonics, sedimentation, and geotechnical properties is particularly important for areas subjected to the dynamic affects of... -
Petrography, minerals and isotopic composition at DSDP Leg 66 Holes
We collected 20 carbonate nodules from the inner trench slope deposits of the Middle America Trench area off Mexico. Carbonate nodules are found only within the methane-rich... -
Petrology at DSDP Leg 66 Holes
The sandstone petrology of Leg 66 samples provides insights into changes through time in the geology of the source regions along the Guerrero portion of the Middle America... -
Petrological parameters of sands and sandstones from DSDP and ODP holes in ar...
Detrital modes for 524 deep-marine sand and sandstone samples recovered on circum-Pacific, Caribbean, and Mediterranean legs of the Deep Sea Drilling Project and the Ocean... -
Petrology and geochemistry of basalt at DSDP Hole 66-487
Major oxide and trace element determinations of the composition basalts from the bottom of Hole 487, together with microprobe analyses of their minerals (olivine,... -
Petrology of basalts from DSDP Hole 66-487
Basaltic rocks recovered at the Middle America Trench area off Mexico are typical plagioclase-olivine phyric abyssal tholeiites containing less than 0.2 wt.% K2O. Phenocrysts of... -
Petrology and origin of basalts at DSDP Hole 66-487
The volcanism of Central America, according to current theory (Pichler and Weyl, 1973; Stoiber and Carr, 1974; Hey, 1977), is related to the subduction of the Cocos Plate under... -
Geochemistry at DSDP Hole 66-487
It is widely accepted that the calc-alkaline magmatism of active continental margins is caused by the melting of ocean crust in subduction zones, which in turn is due to the... -
Preliminary lipid analyses of two Quaternary sediments from DSDP Holes 66-487...
We investigated the solvent-extractable hydrocarbons, ketones, alcohols, and carboxylic acids of two Quaternary sediments from the Middle America Trench (Sections 487-2-3 and... -
Elemental composition and petroleum-generating potential of the methylene chl...
Organic geochemical studies on samples from Holes 487, 488, and 490 in the southern Mexico Middle America Trench provided an opportunity to characterize the organic fraction of... -
Chemical composition, characteristics and age of glauconites at DSDP Leg 66 H...
During the analysis of "glaucony" recovered during Leg 66, off Mexico, we reviewed the data on previously studied glaucony layers in active margin areas.We found the depth of... -
Major element compositions, minerals and trace elements at DSDP Leg 67 Holes
Mineralogical (microprobe) and geochemical (X-ray fluorescence, neutron activation analyses) data are given for 18 samples of volcanic rocks from the Guatemala Trench area (Deep... -
Noble gas concentrations of oceanic crust and sediments from the Ninety East ...
We have determined the concentrations and isotopic composition of noble gases in old oceanic crust and oceanic sediments and the isotopic composition of noble gases in... -
Minor-element chemical analyses of Hole 66-487
This dataset has no description
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Minor-element chemical analyses of Hole 66-487
This dataset has no description
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Minor-element chemical analyses of Hole 66-487
This dataset has no description
