Cambridge radio sonobuoys and the seismic structure of oceanic crust
نویسندگان
چکیده
منابع مشابه
the underlying structure of language proficiency and the proficiency level
هدف از انجام این تخقیق بررسی رابطه احتمالی بین سطح مهارت زبان خارجی (foreign language proficiency) و ساختار مهارت زبان خارجی بود. تعداد 314 زبان آموز مونث و مذکر که عمدتا دانشجویان رشته های زبان انگلیسی در سطوح کارشناسی و کارشناسی ارشد بودند در این تحقیق شرکت کردند. از لحاظ سطح مهارت زبان خارجی شرکت کنندگان بسیار با هم متفاوت بودند، (75 نفر سطح پیشرفته، 113 نفر سطح متوسط، 126 سطح مقدماتی). کلا ...
15 صفحه اولData for Seismic properties of the Nazca oceanic crust in southern Peruvian subduction system
This supplementary file describes (1) data processing for teleseismic receiver function (RF), (2) RF amplitude inversion, and (3) calculation of velocities of candidate phases from experimental mineral physics data. 1. Data processing for teleseismic receiver function Identification of strong and sharp amplitudes of the P-to-S converted phase (hereafter, Ps) is crucial in this analysis. We try ...
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The seismic anisotropy of the shallow oceanic crust across the East Pacific Rise (9330PN) is studied with P-wave refraction data collected during a controlled-source, three-dimensional tomography experiment. The anisotropy is indicated by a cos(2a) pattern of travel time residuals, where a is the receiver to shot azimuth. The travel time data are best fit by a model containing 4% anisotropy fro...
متن کاملSeismic array detection of subducted oceanic crust in the lower mantle
[1] We analyze short-period precursory energy to PP that can be observed in seismograms in the distance range from 95 to 105 to infer the behavior of subducted slabs beneath western Pacific subduction zones. PP is a P wave once reflected at the free surface between the source and receiver. Using high-resolution seismic array techniques, we analyze the incidence angle, timing, and azimuth of the...
متن کاملSeismic properties of the Nazca oceanic crust in southern Peruvian subduction system
a r t i c l e i n f o a b s t r a c t The horizontal Nazca slab, extending over a distance of ∼800 km along the trench is one of enigmatic features in Peruvian subduction zone. Increased buoyancy of the oceanic lithosphere alone due to the subduction of Nazca Ridge is insufficient to fully explain such a lengthy segment. We use data from the recent seismic experiment in southern Peru to find th...
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ژورنال
عنوان ژورنال: Notes and Records: the Royal Society Journal of the History of Science
سال: 2019
ISSN: 0035-9149,1743-0178
DOI: 10.1098/rsnr.2018.0061