Exposure history of the Torino meteorite

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dc.contributor.authorWieler, Ren_AU
dc.contributor.authorGraf, Ten_AU
dc.contributor.authorSigner, Pen_AU
dc.contributor.authorVogt, Sen_AU
dc.contributor.authorHerzog, GFen_AU
dc.contributor.authorTuniz, Cen_AU
dc.contributor.authorFink, Den_AU
dc.contributor.authorFifield, LKen_AU
dc.contributor.authorKlein, Jen_AU
dc.contributor.authorMiddleton, Ren_AU
dc.contributor.authorJull, AJTen_AU
dc.contributor.authorPellas, Pen_AU
dc.contributor.authorMasarik, Jen_AU
dc.contributor.authorDreibus, Gen_AU
dc.date.accessioned2021-12-21T01:19:42Zen_AU
dc.date.available2021-12-21T01:19:42Zen_AU
dc.date.issued1996-03en_AU
dc.date.statistics2021-10-21en_AU
dc.description.abstractWe determined He, Ne, Ar, 10Be, 26Al, 36Cl, and 14C concentrations, as well as cosmic-ray track densities and halogen concentrations in different specimens of the H6 chondrite Torino, in order to constrain its exposure history to cosmic radiation. The Torino meteoroid had a radius of ∼20 cm and travelled in interplanetary space for 2.5–10 Ma. Earlier, Torino was part of a larger body. The smallest possible precursor had a radius of 55 cm and a journey through space longer than ∼65 Ma. If the first-stage exposure took place in a body with a radius of >3 m or in the parent asteroid, then it lasted nearly 300 Ma. The example of Torino shows that it is easy to underestimate first-stage exposure ages when constructing two-stage histories. © 1999-2021 John Wiley & Sons, Inc.en_AU
dc.identifier.citationWieler, R., Graf, T., Signer, P., Vogt, S., Herzog, G. F., Tuniz, C., Fink, D., Fifield, L. K., Klein, J., Middleton, R., Jull, A. J. T., Pellas, P., Masarik, J., & Dreibus, G. (1996). Exposure history of the Torino meteorite. Meteoritics & Planetary Science, 31(2), 265-272. doi:10.1111/j.1945-5100.1996.tb02022.xen_AU
dc.identifier.issn1945-5100en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleMeteoritics & Planetary Scienceen_AU
dc.identifier.pagination265-272en_AU
dc.identifier.urihttps://doi.org/10.1111/j.1945-5100.1996.tb02022.xen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12610en_AU
dc.identifier.volume31en_AU
dc.language.isoenen_AU
dc.publisherWileyen_AU
dc.subjectMeteoritesen_AU
dc.subjectRadiation dosesen_AU
dc.subjectHalogensen_AU
dc.subjectInterplanetary spaceen_AU
dc.subjectAsteroidsen_AU
dc.subjectDensityen_AU
dc.titleExposure history of the Torino meteoriteen_AU
dc.typeJournal Articleen_AU
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