Results 71 to 80 of about 6,413 (223)
New Paradigms For Asteroid Formation
, 2015 Asteroids and meteorites provide key evidence on the formation of planetesimals in the Solar System. Asteroids are traditionally thought to form in a bottom-up process by coagulation within a population of initially km-scale planetesimals.
Cuzzi, Jeffrey N. +4 more
core +1 more source
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
The use of SEM/EDS method in mineralogical analysis of ordinary chondritic meteorite
Geologija, 2009 The aim of this study was to evaluate the potential of scanning electron microscopy coupled with energy dispersiveX-ray spectroscopy (SEM/EDS) for determination of mineral phases according to their stoichiometry and assessment of mineral composition of ...
Breda Mirtič, Urša Curk, Miloš Miler
doaj
Heterogeneities in the solar nebula [PDF]
Oxygen isotopic compositions of the high-temperatue phases in carbonaceous chondrites define a mixing line with an O-16 rich component and show little superimposed chemical isotope fractionation.
Clayton, R. +3 more
core +1 more source
The distribution of asteroids: evidence from Antarctic micrometeorites [PDF]
, 2002 The relative abundances of types amongst 550 AMMs are reported. These suggest that C-type asteroids vary from petrologic type 1 to 3.2 and that the majority of S-type asteroids are chondrule ...
Genge, M. J., Grady, Monica
core
Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.Abstract Compressional and shear wave velocities (Vp, Vs) of candidate Martian deep‐mantle minerals, FeO‐rich ringwoodite ((Mg0.66Fe0.34)2SiO4) and majorite (Mg0.75Fe0.10Al0.26Ca0.07Si0.84O3), were measured up to 25 GPa and 700 K using Brillouin light scattering coupled with externally‐heated diamond anvil cells.
Luo Li +6 more
wiley +1 more source
Two-source Terrestrial Planet Formation with a Sweeping Secular Resonance
The Astronomical JournalThe models that most successfully reproduce the orbital architecture of the solar system terrestrial planets start from a narrow annulus of material that grows into embryos and then planets.
Max Goldberg +2 more
doaj +1 more source
Journal of Economic Geology, 2017 Introduction The Aqkand Cu occurrence, 48 km north of Zanjan, is located in the Tarom subzone of the Western Alborz-Azerbaijan structural zone. Apart from small scale geological maps of the area, i.e., 1:250,000 geological maps of Bandar-e-Anzali ...
Maryam Feyzi +3 more
doaj +1 more source
New constraints from 26Al-26Mg chronology of anorthite bearing chondrules in unequilibrated ordinary chondrites. [PDF]
Geochim Cosmochim Acta, 2021 Siron G, Fukuda K, Kimura M, Kita NT.
europepmc +1 more source
Low delta-V near-Earth asteroids: A survey of suitable targets for space missions
, 2014 In the last decades Near-Earth Objects (NEOs) have become very important targets to study, since they can give us clues to the formation, evolution and composition of the Solar System.
Barucci, M. A. +9 more
core +2 more sources