Quantitative WDS compositional mapping using the electron microprobe

Autor: Owen K. Neill, Julie Chouinard, P. K. Carpenter, Karsten Goemann, Julien M. Allaz, Gareth G.E. Seward, John J. Donovan, Anette von der Handt

Publikováno v: American Mineralogist. 106:1717-1735

While much progress has been made in electron-probe microanalysis (EPMA) to improve the accuracy of point analysis, the same level of attention has not always been applied to the quantification of wavelength-dispersive spectrometry (WDS) X-ray intens

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::054dee9f02afd596abb213f0a1f69693
https://doi.org/10.2138/am-2021-7739

Extreme enriched and heterogeneous 87Sr/86Sr ratios recorded in magmatic plagioclase from the Samoan hotspot

Autor: Jason Harvey, Bradley R. Hacker, Christy B. Till, Graham Hagen-Peter, Frank J. Spera, John M. Cottle, Gareth G.E. Seward, M. A. Edwards, Jenna V. Adams, Andrew R.C. Kylander-Clark, Matthew G. Jackson

Publikováno v: Edwards, M A, Jackson, M G, Kylander-Clark, A R C, Harvey, J, Hagen-Peter, G A, Seward, G G E, Till, C B, Adams, J V, Cottle, J M, Hacker, B R & Spera, F J 2019, ' Extreme enriched and heterogeneous 87 Sr/ 86 Sr ratios recorded in magmatic plagioclase from the Samoan hotspot ', Earth and Planetary Science Letters, vol. 511, pp. 190-201 . https://doi.org/10.1016/j.epsl.2019.01.040

We report the major-element, trace-element, and 87 Sr/ 86 Sr compositions of six plagioclase crystals from two Samoan lavas with extreme EM2 isotopic compositions (ALIA-115-18 with whole-rock 87 Sr/ 86 Sr of 0.718592, and ALIA-115-21 with whole-rock

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9318c742e94007e1ef7038615e2f9625
https://doi.org/10.1016/j.epsl.2019.01.040

Four-dimensional thermal evolution of the East African Orogen: accessory phase petrochronology of crustal profiles through the Tanzanian Craton and Mozambique Belt, northeastern Tanzania

Autor: Roberta L. Rudnick, Andrew R.C. Kylander-Clark, Madalyn S. Blondes, John M. Cottle, Gareth G.E. Seward, Philip M. Piccoli, Francisco E. Apen

Publikováno v: Contributions to Mineralogy and Petrology. 175

U–Pb petrochronology of deep crustal xenoliths and outcrops across northeastern Tanzania track the thermal evolution of the Mozambique Belt and Tanzanian Craton following the Neoproterozoic East African Orogeny (EAO) and subsequent Neogene rifting.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88d789dccc61da87ae942dc141696b8a
https://doi.org/10.1007/s00410-020-01737-6

A defect-resistant Co-Ni superalloy for 3D printing

Autor: Chris J. Torbet, Sean P. Murray, Andrew T. Polonsky, Michael M. Kirka, Ning Zhou, Tresa M. Pollock, Gareth G.E. Seward, Ryan R. Dehoff, Kira Pusch, Stephane A. J. Forsik, Peeyush Nandwana, William E Slye

Publikováno v: Nature Communications
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)

Additive manufacturing promises a major transformation of the production of high economic value metallic materials, enabling innovative, geometrically complex designs with minimal material waste. The overarching challenge is to design alloys that are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12658d44ecf04ba54aa2ef63526ab33a
https://pubmed.ncbi.nlm.nih.gov/33009416

OSCILLATORY MAJOR ELEMENT AND ISOTOPIC ZONING IN HIGH-PRESSURE LOW-TEMPERATURE GARNETS: RECORDS OF NON-UNIFORM FLUID TRANSFER PROCESSES?

Autor: Daniel R. Viete, Janaína Ávila, Glenn Poirer, Gareth G.E. Seward, David Diekrup, Not Provided, Freya George

Publikováno v: Geological Society of America Abstracts with Programs.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2b49779860237475e228148426ff696
https://doi.org/10.1130/abs/2020am-356064