7,948 research outputs found
Average chemical composition of ferromanganese crusts from L9-84-CP (R/V S.P. Lee) expedition stations
No full textThe average chemical metal composition of ferromanganese crusts was determined through various samples dredged during the L9-84-CP (R/V S.P. Lee) expedition by the United States Geological Survey. The composition in major elements was made using X-ray fluorescence (XRF) after drying at 110°C
PORTASPEC shipboard determined chemical composition of ferromanganese crusts for L9-84-CP expedition (R/V S.P. Lee)
No full textMobile laboratories are important to the exploration geochemist because they offer rapid chemical analyses of geologic materials in the field. This permits modification of the sampling plan in response to significant findings, rather than following a planned sampling scheme and leaving any follow-up to a later time. The portable PORTASPEC X-ray spectrograph (Pitchford Scientific instruments Division of Hankison Corporation) Model 2501 was used on ferromanganese crusts during the L9-84-CP (R/V S.P. Lee) expedition by the United States Geological Survey. The composition in major elements was averaged over a collection of samples for each station
Book review: Diversity, inclusion, and decolonization: practical tools for improving teaching, research, and scholarship edited by Abby Day, Lois Lee, Dave S.P. Thomas and James Spickard
No full textIn Diversity, Inclusion, and Decolonization: Practical Tools for Improving Teaching, Research, and Scholarship, Abby Day, Lois Lee, Dave S.P. Thomas and James Spickard bring together academics from across the globe to explore tangible actions those within the academy can take to foster diversity, inclusion and decolonisation. If there were a global syllabus for academics, this collaborative work should be required reading, writes Ellen Frank Delgado. Diversity, Inclusion, and Decolonization: Practical Tools for Improving Teaching, Research, and Scholarship. Abby Day, Lois Lee, Dave S.P. Thomas and James Spickard (eds). Bristol University Press. 2022
Ferromanganese crusts and nodules chemical analyses from cruises KK84 (R/V Kana Keoki) and L583HW (R/V S.P. Lee)
No full textThe chemical composition of ferromanganese crusts retrieved during the KK84 (R/V Kana Keoki) and L583HW (R/V S.P. Lee) was determined using methods developed by Haynes, B. W. at the US Bureau of Mines. Major element composition was determined by Atomic absorption spectrometry (AAS) and minor elements were analysed using Neutron activation analysis
Book review: Diversity, inclusion, and decolonization: practical tools for improving teaching, research, and scholarship edited by Abby Day, Lois Lee, Dave S.P. Thomas and James Spickard
No full textIn Diversity, Inclusion, and Decolonization: Practical Tools for Improving Teaching, Research, and Scholarship, Abby Day, Lois Lee, Dave S.P. Thomas and James Spickard bring together academics from across the globe to explore tangible actions those within the academy can take to foster diversity, inclusion and decolonisation. If there were a global syllabus for academics, this collaborative work should be required reading, writes Ellen Frank Delgado
Improvement of measurement accuracy of laser diffraction method in sizing spray particles
No full textThis work was financially supported by the Combustion Engineering Research Center (CERC) and the Brain Korea 21 projects
Ferromanganese nodules and crusts chemical analysis of samples from cruise L583HW (R/V S.P. Lee) using X-ray
No full textThe cooperative cruise of the R/V S.P. Lee in 1983 provided an excellent opportunity for a wide-range interlaboratory study on samples of crusts ground and sieved aboard the vessel. Analytical data on splits of approximately 56 samples were performed by the U.S. Geological Survey laboratories in Reston Virginia and Woods Hole Massachusetts, (see Chapter V), the Bureau of Mines laboratory in Avondale, Maryland, and the laboratory of the German Geological Survey in Hannover, Federal Republic of Germany. At USGS Woods-Hole, 2.0 cm thick mini-slabs from ferromanganese crust or nodule outer surface were separated into horizons and layers. They were ground and sieved through a 105 micron nylon mesh. Remaining ferromanganese material was removed by washing with 10 percent hydroxylamine hydrochloride (NH2OH.HCL) and 1 percent oxalic acid. Samples were first dried at 110°C overnight for the determination of hydroscopic water (H2O-). Major and minor element concentrations were determined by X-ray fluorescence spectrometry
A conceptual fairweather-storm model of beach nearshore evolution applied at Duck, North Carolina, USA
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