Meteorite paleomagnetism - From magnetic domains to planetary fields and core dynamos

Urrutia‐Fucugauchi, J.; Pérez‐Cruz, Ligia; Flores-Gutiérrez, Daniel

doi:10.1016/s0016-7169(14)71510-7

Cited by 6 publications

(4 citation statements)

References 78 publications

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“…This is~1.5 m.y. after cooling of volcanic angrites from the inner disk isotopic reservoir in a field <0.6 μT 25 interpreted to record magnetization after nebular dispersal which otherwise might be a magnetization source 26 . Solar wind ram pressure was much higher at these times due to the initial faster spin of the Sun, which in turn is associated with greater magnetic activity and higher rates of mass loss 27 .…”

Section: Resultsmentioning

confidence: 99%

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Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago

O'Brien

Tarduno

Anand

et al. 2020

Commun Earth Environ

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Meteorite magnetizations can provide rare insight into early Solar System evolution. Such data take on new importance with recognition of the isotopic dichotomy between non-carbonaceous and carbonaceous meteorites, representing distinct inner and outer disk reservoirs, and the likelihood that parent body asteroids were once separated by Jupiter and subsequently mixed. The arrival time of these parent bodies into the main asteroid belt, however, has heretofore been unknown. Herein, we show that weak CV (Vigarano type) and CM (Mighei type) carbonaceous chondrite remanent magnetizations indicate acquisition by the solar wind 4.2 to 4.8 million years after Ca-Al-rich inclusion (CAI) formation at heliocentric distances of ~2–4 AU. These data thus indicate that the CV and CM parent asteroids had arrived near, or within, the orbital range of the present-day asteroid belt from the outer disk isotopic reservoir within the first 5 million years of Solar System history.

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Section: Resultsmentioning

confidence: 99%

“…Achondrite and CV clasts mixed in a breccia are also unknown. Moreover, the estimated initial abundance of 26 Al in the CV parent asteroid, considered to be its major heating source, is insufficient to produce melting and igneous differentiation 16 . Another model suggests that CV chondrites could represent a "late" accretion (~1.5 to 5 m.y.…”

mentioning

confidence: 99%

Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago

O'Brien

Tarduno

Anand

et al. 2020

Commun Earth Environ

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“…Studies are providing increasing resolution on the evolutionary stages (e.g., [43,44]). Studies on chondrites and iron and stony-iron meteorites support that their planetesimals had differentiated iron cores capable of sustaining dynamo action for ∼10 Ma periods [45][46][47][48][49]. The paleomagnetic record of main group pallasites supports the fact that they come from near the core-mantle boundary of differentiated planetesimals that sustained internal magnetic fields [47].…”

Section: Planetary Sciencesmentioning

confidence: 92%

Planetary Sciences, Geodynamics, Impacts, Mass Extinctions, and Evolution: Developments and Interconnections

Urrutia‐Fucugauchi

Pérez‐Cruz

2016

International Journal of Geophysics

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Research frontiers in geophysics are being expanded, with development of new fields resulting from technological advances such as the Earth observation satellite network, global positioning system, high pressure-temperature physics, tomographic methods, and big data computing. Planetary missions and enhanced exoplanets detection capabilities, with discovery of a wide range of exoplanets and multiple systems, have renewed attention to models of planetary system formation and planet’s characteristics, Earth’s interior, and geodynamics, highlighting the need to better understand the Earth system, processes, and spatio-temporal scales. Here we review the emerging interconnections resulting from advances in planetary sciences, geodynamics, high pressure-temperature physics, meteorite impacts, and mass extinctions.

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“…Olivine (forsterite), pyroxene (enstatite), troilite, and other mineral phases such as Ca-Al-rich aggregates and Ni-Fe magnetic alloys were among the distinctive mineral phases identified in the Allende meteorite [13]. Other studies on different meteorite classes, including the presence of magnetic minerals in ordinary and carbonaceous chondrites, have provided relevant results with wide ranges for protoplanetary disk magnetic fields, suggesting that there is a significant degree of interaction with magnetic solids at the molecular scale [14]. Based on some physicochemical considerations, it is suggested that magnetic minerals may influence the chemical activity of organic material, such as the removal of water molecules from the hydration shell in amino acids [15].…”

Section: Introductionmentioning

confidence: 93%

Possible Relevance of the Allende Meteorite Conditions in Prebiotic Chemistry: An Insight into the Chondrules and Organic Compounds

Barbero,

López,

López

et al. 2023

ABC

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The study of the mineral and organic content of the Allende meteorite is important for our understanding of the molecular evolution of the universe as well as the ancient Earth. Previous studies have characterized the magnetic minerals present in ordinary and carbonaceous chondrites, providing information on the evolution of magnetic fields. The interaction of organic compounds with magnetic minerals is a possible source of chemical diversity, which is crucial for molecular evolution. Carbon compounds in meteorites are of great scientific interest for a variety of reasons, such as their relevance to the origins of chirality in living organisms. This study presents the characterization of organic and mineral compounds in the Allende meteorite. The structural and physicochemical characterization of the Allende meteorite was accomplished through light microscopy, powder X-ray diffraction with complementary Rietveld refinement, Raman and infrared spectroscopy, mass spectrometry, scanning electron microscopy, and atomic force microscopy using magnetic signal methods to determine the complex structure and the interaction of organic compounds with magnetic Ni-Fe minerals.

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Meteorite paleomagnetism - From magnetic domains to planetary fields and core dynamos

Cited by 6 publications

References 78 publications

Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago

Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago

Planetary Sciences, Geodynamics, Impacts, Mass Extinctions, and Evolution: Developments and Interconnections

Possible Relevance of the Allende Meteorite Conditions in Prebiotic Chemistry: An Insight into the Chondrules and Organic Compounds

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