Výsledky vyhledávání - "Marion Grange"

Annealing history of zircons from Apollo 14083 and 14303 impact breccias

Autor: Robert T. Pidgeon, Alexander A. Nemchin, Marion Grange, Renaud E. Merle

Publikováno v: Meteoritics & Planetary Science. 53:2632-2643

Breccia boulders scattered around the 25 Ma Cone Crater near the Apollo 14 landing site provide a potential source of material ejected from the underlying Fra Mauro formation, which is int ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::add6da5252f38e59efd1cc4a38bccfe0
https://doi.org/10.1111/maps.13185

Zobrazit plný text záznamu

Origin and transportation history of lunar breccia 14311

Autor: Martin J. Whitehouse, Marion Grange, F. Thiessen, Robert T. Pidgeon, Joshua F. Snape, Renaud E. Merle, Alexander A. Nemchin

Publikováno v: Merle, R E, Nemchin, A A, Whitehouse, M J, Pidgeon, R T, Grange, M L, Snape, J F & Thiessen, F 2017, ' Origin and transportation history of lunar breccia 14311 ', Meteoritics and Planetary Science, vol. 52, no. 5, pp. 842-858 . https://doi.org/10.1111/maps.12835

In this paper, we compare the U-Pb zircon age distribution pattern of sample 14311 from the Apollo 14 landing site with those from other breccias collected at the same landing site. Zircons in breccia 14311 show major age peaks at 4340 and 4240 Ma an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6016381e4c2ef09d34963b5de1328e14
https://doi.org/10.1111/maps.12835

Zobrazit plný text záznamu

Phosphate ages in Apollo 14 breccias: Resolving multiple impact events with high precision U–Pb SIMS analyses

Autor: F. Thiessen, Joshua F. Snape, Jeremy J. Bellucci, Marion Grange, Martin J. Whitehouse, Alexander A. Nemchin

Publikováno v: Geochimica et Cosmochimica Acta. 174:13-29

The U–Pb systems of apatite and merrillite grains within four separate Apollo 14 impact melt breccia samples were analysed by secondary ion mass spectrometry. No systematic difference was identified between the 207 Pb/ 206 Pb ages of the apatites a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::765e2456a26b425a241002d38b485569
https://doi.org/10.1016/j.gca.2015.11.005

Zobrazit plný text záznamu

Annealing of radiation damage in zircons from Apollo 14 impact breccia 14311: Implications for the thermal history of the breccia

Autor: Alexander A. Nemchin, Martin J. Whitehouse, Marion Grange, Robert T. Pidgeon, Renaud E. Merle

Publikováno v: Meteoritics & Planetary Science. 51:155-166

Impact breccia 14311, was collected from the Apollo 14 landing site as a potential sample of the underlying Fra Mauro Formation. Published zircon U-Pb ages of >4000 Ma date the source material of the breccia and the apatite U-Pb age of ~3940 Ma is in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa25ab727318f8ccd8b9d5964e9b019d
https://doi.org/10.1111/maps.12572

Zobrazit plný text záznamu

Regolith breccia Northwest Africa 7533: Mineralogy and petrology with implications for early Mars

Autor: Allen K. Kennedy, Hugues Leroux, Eric Lewin, Roger H. Hewins, Jeremy J. Bellucci, Marion Grange, Damien Deldicque, Martin J. Whitehouse, Christa Göpel, Sylvain Courrech du Pont, Jean-Pierre Lorand, Pierre Beck, Maya Marinova, Munir Humayun, Alexander A. Nemchin, Laurent Remusat, Brigitte Zanda

Publikováno v: Meteoritics and Planetary Science
Meteoritics and Planetary Science, 2017, 52 (1), pp.89-124. ⟨10.1111/maps.12740⟩
Meteoritics and Planetary Science, Wiley, 2017, 52 (1), pp.89-124. ⟨10.1111/maps.12740⟩

Northwest Africa 7533, a polymict Martian breccia, consists of fine‐grained clast‐laden melt particles and microcrystalline matrix. While both melt and matrix contain medium‐grained noritic‐monzonitic material and crystal clasts, the matrix a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd5eede1659c9519a036506b6b11f961
https://hal.science/hal-02262480

Zobrazit plný text záznamu

High resolution U-Pb ages of Ca-phosphates in Apollo 14 breccias: Implications for the age of the Imbrium impact

Autor: Robert T. Pidgeon, Martin J. Whitehouse, Alexander A. Nemchin, Renaud E. Merle, Marion Grange

Publikováno v: Meteoritics & Planetary Science. 49:2241-2251

Previous age estimates of the Imbrium impact range from 3770 to 3920 Ma, with the latter being the most commonly accepted age of this basin-forming event. The occurrence of Ca-phosphates i ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd1f8e9eba7bef679364652036a6de1c
https://doi.org/10.1111/maps.12395

Zobrazit plný text záznamu

Origin and age of the earliest Martian crust from meteorite NWA 7533

Autor: Roger H. Hewins, Christa Göpel, Sylvain Pont, Brigitte Zanda, Marion Grange, Munir Humayun, Damien Deldicque, Alexander A. Nemchin, Allen K. Kennedy, Jean-Pierre Lorand, C. Fieni

Publikováno v: Nature. 503:513-516

Chemical analysis of the meteorite NWA 7533 indicates that it may be a Martian regolith breccia and, if so, that the crust of Mars may have formed in the first 100 million years of the planet’s history. This paper identifies the NWA 7533 meteorite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91292dda3922da4eaf8b85ef21fa834a
https://doi.org/10.1038/nature12764

Zobrazit plný text záznamu

The effect of 1.9 and 1.4 Ga impact events on 4.3 Ga zircon and phosphate from an Apollo 15 melt breccia

Autor: Robert T. Pidgeon, Alexander A. Nemchin, Marion Grange

Publikováno v: Journal of Geophysical Research: Planets. 118:2180-2197

[1] Zircon and phosphate grains from matrix and quartz-monzodiorite (QMD) clasts in two thin sections of Apollo 15 impact melt breccia 15405 were investigated using optical microscopy, scanning electron microscopy, Raman spectroscopy, and ion micropr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c62a55e2099d3a379cefc5eb35a6262
https://doi.org/10.1002/jgre.20167

Zobrazit plný text záznamu

Micro-analytical uranium isotope and chemical investigations of zircon crystals from the Chernobyl 'lava' and their nuclear fuel inclusions

Autor: Jasper Berndt, Clive T. Walker, Marion Grange, P. Pöml, R. Hasnaoui, Alexander A. Nemchin, P.D.W. Bottomley, Raúl O.C. Fonseca, Thorsten Geisler, Boris E. Burakov

Publikováno v: Journal of Nuclear Materials. 439:51-56

U isotope data measured on real fragments of the Chernobyl nuclear fuel included in zircon crystals crystallised from the Chernobyl “lava” are presented for the first time. The U isotope data show no anomalies and lie within the expected burnup v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1a14a30e27320f3f46ff5143cbf5152
https://doi.org/10.1016/j.jnucmat.2013.03.031

Zobrazit plný text záznamu

Interpreting U–Pb data from primary and secondary features in lunar zircon

Autor: Marion Grange, C. Meyer, Nicholas E. Timms, Robert T. Pidgeon, Alexander A. Nemchin

Publikováno v: Geochimica et Cosmochimica Acta. 101:112-132

In this paper, we describe primary and secondary microstructures and textural characteristics found in lunar zircon and discuss the relationships between these features and the zircon U–Pb isotopic systems and the significance of these features for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2b641a5cba651a81b00552c344795a4
https://doi.org/10.1016/j.gca.2012.10.013

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání