Ian A. Franchi
Open University
425 Papers
1.4K Citations
Ian A. Franchi is an academic researcher from Open University. The author has contributed to research in topics: Chondrite & Meteorite. The author has an hindex of 55, co-authored 388 publications. Previous affiliations of Ian A. Franchi include Leiden University & Max Planck Society.
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Papers
Stable isotope analysis of carbon and nitrogen in angrites
F. A. J. Abernethy,A. B. Verchovsky,Natalie A. Starkey,Mahesh Anand,Mahesh Anand,Ian A. Franchi,Monica M. Grady,Monica M. Grady +7 more
TL;DR: In this paper, a small group of angrites and a glass separate from D'Orbigny were combined with earlier data and acid dissolution experiments of carbonates found in D'Obligny to compile an inventory of indigenous carbon and nitrogen.
The Braunschweig meteorite − a recent L6 chondrite fall in Germany
Rainer Bartoschewitz,Peter Appel,Jean-Alix Barrat,Addi Bischoff,Marc W. Caffee,Ian A. Franchi,Zelimir Gabelica,Richard C. Greenwood,Mourad Harir,Dennis Harries,Rupert Hochleitner,Jens Hopp,Matthias Laubenstein,Barbara Mader,Rosa Marques,Andreas Morlok,Gert Nolze,Maria Isabel Prudêncio,Pierre Rochette,Alexander Ruf,Philippe Schmitt-Kopplin,Erhard Seemann,Marian Szurgot,Roald Tagle,Radoslaw A. Wach,Kees C. Welten,Mona Weyrauch,Karl Wimmer +27 more
TL;DR: In this paper, a 1.3 kg L6 chondrite, moderately shocked (S4), with a remarkably high porosity was found to have formed an impact pit in the concrete fall site with a diameter of 7 cm and a depth of 3 cm.
Itqiy: A study of noble gases and oxygen isotopes including its terrestrial age and a comparison with Zakłodzie
A. Patzer,Dolores H. Hill,William V. Boynton,L. Franke,Ludolf Schultz,A. J. T. Jull,L. R. McHargue,Ian A. Franchi +7 more
TL;DR: The noble gas record of Itqiy exhibits the presence of a trapped subsolar component, which is diagnostic for petrologic types 4-6 among enstatite chondrites as discussed by the authors.
The origin of water in the primitive Moon as revealed by the lunar highlands samples
Jessica Barnes,Jessica Barnes,Romain Tartèse,Mahesh Anand,Mahesh Anand,Francis M. McCubbin,Ian A. Franchi,Natalie A. Starkey,Sara S. Russell +8 more
TL;DR: In this paper, in-situ measurements of hydroxyl (OH) content and H isotopic composition of the mineral apatite from four lunar highlands samples (two norites, a troctolite, and a granite clast) collected during the Apollo missions were reported.
Constraints on the formation conditions of iron meteorites based on concentrations and isotopic compositions of nitrogen
TL;DR: A suite of iron meteorites has been analysed for their content and isotopic composition of nitrogen to investigate the behaviour of nitrogen in the iron meteorite parent bodies and any constraints this can place on the origin and formation of these meteorites as mentioned in this paper.