Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Julie M. Paque"'
Autor:
Amy E. Hofmann, George R. Rossman, A. J. G. Jurewicz, Yunbin Guan, Chi Ma, D. S. Woolum, Donald S. Burnett, Julie M. Paque
Publikováno v:
Geostand Geoanal Res
Electron probe microanalyzer measurements of trace elements with high accuracy are challenging. Accurate Al measurements in olivine are required to calibrate SIMS implant reference materials for measurement of Al in the solar wind. We adopt a combine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a415db35383986a8379ad8d732557190
https://resolver.caltech.edu/CaltechAUTHORS:20200608-133209595
https://resolver.caltech.edu/CaltechAUTHORS:20200608-133209595
Autor:
Julie M. Paque, D. S. Burnett, Shoichi Itoh, John R. Beckett, Harold C. Connolly, Stephen R. Sutton, Hisayoshi Yurimoto, Steven B. Simon, Lawrence Grossman
Publikováno v:
Meteoritics & Planetary Science. 48:2015-2043
Ti valence measurements in MgAl_2O_4 spinel from calcium-aluminum-rich inclusions (CAIs) by X-ray absorption near-edge structure (XANES) spectroscopy show that many spinels have predominantly tetravalent Ti, regardless of host phases. The average spi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31d2b8cb29a1ec77a521031890a10ca7
https://doi.org/10.1111/maps.12216
https://doi.org/10.1111/maps.12216
Publikováno v:
Meteoritics & Planetary Science. 45:1124-1135
The variation in sizes of chondrules from one chondrite to the next is thought to be due to some sorting process in the early solar nebula. Hypotheses for the sorting process include chondrule sorting by mass and sorting by some aerodynamic mechanism
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad590f74b789c6917d5fc499c05df44c
https://doi.org/10.1111/j.1945-5100.2010.01072.x
https://doi.org/10.1111/j.1945-5100.2010.01072.x
Autor:
D. S. Burnett, Hope A. Ishii, Z. R. Dai, A. Aléon-Toppani, Nick Teslich, Julie M. Paque, John P. Bradley, John R. Beckett
Publikováno v:
Meteoritics & Planetary Science. 44:665-687
We used focused ion beam thin section preparation and scanning transmission electron microscopy (FIB/STEM) to examine the interfacial region between spinel and host melilite for spinel grains in type B1 inclusions from the Allende and Leoville carbon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cb8b270a27a49b1c3a2b068072bc982
https://doi.org/10.1111/j.1945-5100.2009.tb00762.x
https://doi.org/10.1111/j.1945-5100.2009.tb00762.x
Autor:
Julie M. Paque, Glenn J. MacPherson, Alexander N. Krot, Marc Chaussidon, Ian D. Hutcheon, Hisayoshi Yurimoto
Publikováno v:
Meteoritics & Planetary Science. 42:1197-1219
We describe the mineralogy, petrology, oxygen, and magnesium isotope compositions of three coarse-grained, igneous, anorthite-rich (type C) Ca-Al-rich inclusions (CAIs) (ABC, TS26, and 93) that are associated with ferromagnesian chondrule-like silica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc932bc3dcfcad1fd453c96921dd6b82
https://doi.org/10.1111/j.1945-5100.2007.tb00569.x
https://doi.org/10.1111/j.1945-5100.2007.tb00569.x
Publikováno v:
Meteoritics & Planetary Science. 42:899-912
We obtained two-dimensional concentration maps for the minor elements Fe and V in 21 spinel crystals in the Allende type B1 inclusion TS-34 with a 4–5 μm resolution. Locally high concentrations of Fe occur along at least one edge of the spinels an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0370d9d36e37a6c04b19da1918f2b93
https://doi.org/10.1111/j.1945-5100.2007.tb01140.x
https://doi.org/10.1111/j.1945-5100.2007.tb01140.x
Autor:
Veronika S. Heber, Munir Humayun, D. S. Woolum, Larry R. Nittler, Yunbin Guan, Donald S. Burnett, A. J. G. Jurewicz, Richard L. Hervig, Jianhua Wang, Kevin D. McKeegan, Julie M. Paque
Ion microprobe elemental and isotopic determinations can be precise but difficult to quantify. Error is introduced when the reference material and the sample to be analysed have different compositions. Mitigation of such “matrix effects” is possi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6980e0deb01fd1863be110681d2d2c2d
https://resolver.caltech.edu/CaltechAUTHORS:20141111-093651164
https://resolver.caltech.edu/CaltechAUTHORS:20141111-093651164
Publikováno v:
Meteoritics & Planetary Science. 35:363-371
The observed textures and chemistry of Ca-Al-rich inclusions (CAIs) are presumed to be the culmination of a series of repeated heating and cooling events in the early history of the solar nebula. We have examined the effects of these heating/cooling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aa7443f69ed33c5c3c796da2717ef82
https://doi.org/10.1111/j.1945-5100.2000.tb01782.x
https://doi.org/10.1111/j.1945-5100.2000.tb01782.x
Publikováno v:
Meteoritics. 29:682-690
The crystallography and crystal chemistry of a new calcium- titanium-aluminosilicate mineral (UNK) observed in synthetic analogs to calcium-aluminum-rich inclusions (CAIs) from carbonaceous chondrites was studied by electron diffraction techniques. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c66bf4326044c9dfccf968a19b7979e3
https://doi.org/10.1111/j.1945-5100.1994.tb00784.x
https://doi.org/10.1111/j.1945-5100.1994.tb00784.x
Publikováno v:
Meteoritics & Planetary Science. 34:671-673
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18b91702835b3f042d3d0120b0c4746a
https://doi.org/10.1111/j.1945-5100.1999.tb01373.x
https://doi.org/10.1111/j.1945-5100.1999.tb01373.x