Results 41 to 50 of about 32,111 (286)
Dating climatic change in hot deserts using desert varnish on meteorite finds [PDF]
, 2003 A thin coating of desert varnish occurs on Forrest 009 and Nurina 004, both equilibrated ordinary chondrite (L6) finds from the Nullarbor Plain, Australia.
Bland, P.A., Lee, M.R.
core +1 more source
Геофизический журнал, 2019 The history of origin and evolution in Ukraine of mineralogical studies of cosmic samples, mainly meteorites, and the main stages of formation of the Department of Сosmoecology and Cosmic Mineralogy at the M. P.
V. P. Semenenko
doaj +1 more source
Northwest Africa 5958: A weakly altered CM‐related ungrouped chondrite, not a CI3 [PDF]
, 2016 Northwest Africa (NWA) 5958 is a carbonaceous chondrite found in Morocco in 2009. Preliminary chemical and isotopic data leading to its initial classification as C3.0 ungrouped have prompted us to conduct a multitechnique study of this meteorite and ...
E. Jacquet +6 more
semanticscholar +1 more source
The Winchcombe meteorite – a regolith breccia from a rubble-pile CM chondrite asteroid [PDF]
, 2022 The Winchcombe meteorite is a CM chondrite breccia composed of eight distinct lithological units plus a cataclastic matrix. The degree of aqueous alteration varies between intensely altered CM2.0 and moderately altered CM2.6.
Hicks, Leon J +14 more
core +1 more source
Chondrules in Enstatite Chondrites [PDF]
, 2018 23 pages, 4 figures. Submitted manuscript for a chapter in the book "Chondrules and the protoplanetary disc" (editors : S. Russell, H. C. Connolly Jr, A. N. Krot) to be published by Cambridge University Press in 2018. This version is free to view and download for personal use only.
Jacquet, Emmanuel +2 more
openaire +3 more sources
Mineralogy and petrology of Dominion Range 08006: A very primitive CO3 carbonaceous chondrite
Geochimica et Cosmochimica Acta, 2019 Here we report the relative degrees of thermal metamorphism for five Antarctic Ornans-like carbonaceous (CO) chondrites, including Dominion Range (DOM) 08006, as determined from the Cr-content of their FeO-rich (ferroan) olivine.
J. Davidson +4 more
semanticscholar +1 more source
Chromites in ordinary-chondrite fusion crusts [PDF]
European Journal of MineralogyChromites from ordinary chondrites of groups H4, H5, LL5, LL6, L3.6 and L6 were studied and compared to an H5 ordinary chondrite processed to form a synthetic fusion crust.
M. Bellesi +8 more
doaj +1 more source
Reclassification and thermal history of trenzano chondrite
, 2007 We present a new single-crystal X-ray diffraction (XRD) study performed on a suite of six orthopyroxene grains from the low-shocked H6 Trenzano meteorite. The quenched intracrystalline Fe2+-Mg ordering state in orthopyroxene preserves the memory of the
Molin, G. +14 more
core +3 more sources
Microbial mediation of textures and minerals – terrestrial or parent body processes?
Open Astronomy, 2019 Evolution of chondritic parent body is influenced by thermal, impact metamorphism and aqueous alteration, studied in Mező-Madaras, Knyahinya, Mócs and Nyírábrány in aspect of high resolution in situ textural, mineralogical and organic geochemical ...
Polgári Márta +5 more
doaj +1 more source
Micron-scale D/H heterogeneity in chondrite matrices: A signature of the pristine solar system water? [PDF]
, 2015 Organic matter and hydrous silicates are intimately mixed in the matrix of chondrites and in-situ determination of their individual D/H ratios is therefore challenging.
L. Piani, F. Robert, L. Remusat
semanticscholar +1 more source