Results 61 to 70 of about 5,269 (213)
New Zealand's Second Meteorite: Makarewa (find, L4, S5, W2)
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.One of the most remarkable discoveries of a meteorite in New Zealand was that of Makarewa. Discovered in 1879, Makarewa is a ‘find’ that was uncovered a metre below the surface of a clay bank during excavation works for a train line in the southern South Island.
Mia R. E. Boothroyd +3 more
wiley +1 more source
Exploring the Interior Structure of (16) Psyche Through Basin‐Scale Collisions
Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.Abstract Asteroid (16) Psyche, the largest member of the M/X‐type asteroids, may be the leftover core of a differentiated planetesimal. As such (16) Psyche will be explored in detail by NASA's discovery‐class Psyche mission in 2029. This will be the first mission to orbit a metal‐rich asteroid, or any asteroid in the 100–500 km size range.
Namya Baijal +7 more
wiley +1 more source
Micromagnetic and microstructural analyses in chondrules of the Allende meteorite
Revista Mexicana de Ciencias Geológicas, 2018 Results of micromagnetic and microstructural studies of individual chondrules from the Allende carbonaceous meteorite are presented. Allende is a member of the CV3 carbonaceous chondrites, and part of the oxidized meteorites with iron in silicates and ...
Daniel Flores-Gutiérrez +3 more
doaj
Forming Chondrites in a Solar Nebula with Magnetically Induced Turbulence
, 2016 Chondritic meteorites provide valuable opportunities to investigate the origins of the solar system. We explore impact jetting as a mechanism of chondrule formation and subsequent pebble accretion as a mechanism of accreting chondrules onto parent bodies
Hasegawa, Yasuhiro +5 more
core +1 more source
Mixing in the Solar Nebula: Implications for Isotopic Heterogeneity and Large-Scale Transport of Refractory Grains [PDF]
, 2008 The discovery of refractory grains amongst the particles collected from Comet 81P/Wild 2 by the Stardust spacecraft (Brownlee et al. 2006) provides the ground truth for large-scale transport of materials formed in high temperature regions close to the ...
Alan P. Boss +41 more
core +1 more source
Apatite in Bennu samples indicates multiple stages of aqueous alteration
Meteoritics &Planetary Science, Volume 61, Issue 3, Page 504-521, March 2026.Abstract Calcium phosphates are ubiquitous in planetary materials, including samples returned from asteroid Bennu by the OSIRIS‐REx mission. We characterized apatite [Ca5(PO4)3(F,Cl,OH)] grains in Bennu samples by scanning electron microscopy, electron microprobe analysis, and transmission electron microscopy to investigate their compositions, mineral ...
Laura B. Seifert +10 more
wiley +1 more source
Iron Isotope Constraints on the Structure of the Early Solar System
The Astrophysical Journal Letters, 2023 The recent advent of nontraditional isotopic systems has revealed that meteorites display a fundamental isotopic dichotomy between noncarbonaceous (NC) and carbonaceous (C) groups, which represent material from the inner and outer solar system ...
Yves Marrocchi +2 more
doaj +1 more source
PHOTOPHORETIC STRENGTH ON CHONDRULES. 1. MODELING [PDF]
The Astrophysical Journal, 2013 Photophoresis is a physical process that transports particles in optical thin parts of protoplanetary disks, especially at the inner edge and at the optically surface. To model the transport and resulting effects in detail, it is necessary to quantify the strength of photophoresis for different particle classes as a fundamental input.
Loesche, Christoph +4 more
openaire +3 more sources
Transport of First Rocks of The Solar System by X-winds [PDF]
, 2010 It has been suggested that chondrules and calcium-aluminum-rich inclusions (CAIs) were formed at the inner edge of the protoplanetary disk and then entrained in magnetocentrifugal X-winds. We study trajectories of such solid bodies with the consideration
Desch +9 more
core +2 more sources
Geochemical and petrographic re‐evaluation of ungrouped iron meteorites from Western Australia
Meteoritics &Planetary Science, Volume 61, Issue 3, Page 444-465, March 2026.Abstract Under the current classification scheme, ungrouped irons make up ~11% of all recognized iron meteorites. A further ~7% of iron meteorites are currently classified as simply “irons” and are yet to be fully classified. To potentially classify these meteorites, newer approaches, including either statistical modeling or advanced geochemical ...
Ashley Rogers +6 more
wiley +1 more source