Cretaceous geomagnetic paleointensities: Thellier experiments on Pillow lavas and Submarine basaltic glass from the Ontong Java Plateau
نویسندگان
چکیده
منابع مشابه
Cretaceous Planktonic Foraminifers and Depositional Environments from the Ontong Java Plateau with Emphasis on Sites
Cretaceous planktonic foraminifers from Ocean Drilling Program (ODP) Leg 130 consist of two age groups: one dominantly Aptian in age and the other dominantly Maastrichtian. The oldest dated sediments from Ontong Java Plateau occur at ODP Site 807 and are assigned to the early Aptian Globigerinelloides blowi Zone. The assemblage correlates closely with Aptian foraminifers from Deep Sea Drilling ...
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We use multiple-ScS phases recorded at Pohnpei from a 1996 deep earthquake under the Solomon Islands to investigate the shear velocity and attenuation characteristics of the upper mantle under the Ontong-Java Plateau in the Western Equatorial Pacific. Cross-correlation results indicate a vertical one-way travel-time under the plateau 3 s slow with respect to PREM, in agreement with previously o...
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Ž . The deep structure of the Ontong–Java Plateau OJP in the westcentral Pacific is investigated through a 2-year deployment of four PASSCAL seismic stations used in a passive tomographic experiment. Single-path inversions of 230 Rayleigh waveforms from 140 earthquakes mainly located in the Solomon Trench confirm the presence of an extremely Ž . thick crust, with an average depth to the Mohorov...
متن کاملTechnical Notes on the Near Surface Experiments of Submerged Submarine
In this study, the experimental analysis on the bare hull resistance coefficient of submarine at snorkel depth is represented. The experiments are conducted in marine laboratory of Admiral Makarov University. The results are presented for surface condition and snorkel condition. Snorkel depth is regarded equal to one diameter of submarine hull beneath the water surface as usual in submarines. P...
متن کاملDeep-sea carbonates: dissolution and mass wasting on ontong-java plateau.
Seismic reflection profiles and the structure of sediments in box cores from Ontong-Java Plateau indicate large-scale land sliding and sediment flow processes, respectively. The topographic morphology of sliding and slumping is depth- dependent, suggesting control by dissolution processes.
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2003
ISSN: 1525-2027
DOI: 10.1029/2003gc000611