Search Results - "Lima, Eduardo A"
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High‐Sensitivity Moment Magnetometry With the Quantum Diamond Microscope
Published in Geochemistry, geophysics, geosystems : G3 (01-08-2020)“…Abstract Interest in magnetic fields on the ancient Earth and other planetary bodies has motivated the paleomagnetic analysis of complex rocks such as…”
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Solar nebula magnetic fields recorded in the Semarkona meteorite
Published in Science (American Association for the Advancement of Science) (28-11-2014)“…Magnetic fields are proposed to have played a critical role in some of the most enigmatic processes of planetary formation by mediating the rapid accretion of…”
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3
Evidence for Asteroid Scattering and Distal Solar System Solids From Meteorite Paleomagnetism
Published in The Astrophysical journal (01-04-2020)“…Asteroid-sized bodies are predicted to have been scattered throughout the solar system following gravitational interactions with the giant planets. This…”
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High‐Resolution Magnetic‐Geochemical Mapping of the Serpentinized and Carbonated Atlin Ophiolite, British Columbia: Toward Establishing Magnetometry as a Monitoring Tool for In Situ Mineral Carbonation
Published in Geochemistry, geophysics, geosystems : G3 (01-04-2023)“…We address in situ serpentinization and mineral carbonation processes in oceanic lithosphere using integrated field magnetic measurements, rock magnetic…”
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Estimating the Net Magnetic Moment of Geological Samples From Planar Field Maps Using Multipoles
Published in Geochemistry, geophysics, geosystems : G3 (01-07-2023)“…Recent advances in magnetic microscopy have enabled studies of geological samples whose weak and spatially nonuniform magnetizations were previously…”
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Obtaining High‐Resolution Magnetic Records From Speleothems Using Magnetic Microscopy
Published in Geochemistry, geophysics, geosystems : G3 (01-10-2024)“…Speleothems are mineral deposits capable of recording detrital and/or chemical remanent magnetization at annual timescales. They can offer high‐resolution…”
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7
Evaluating the paleomagnetic potential of single zircon crystals using the Bishop Tuff
Published in Earth and planetary science letters (15-01-2017)“…Zircon crystals offer a unique combination of suitability for high-precision radiometric dating and high resistance to alteration. Paleomagnetic experiments on…”
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8
Multi-scale magnetic mapping of serpentinite carbonation
Published in Nature communications (30-11-2017)“…Peridotite carbonation represents a critical step within the long-term carbon cycle by sequestering volatile CO 2 in solid carbonate. This has been proposed as…”
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9
An Ancient Core Dynamo in Asteroid Vesta
Published in Science (American Association for the Advancement of Science) (12-10-2012)“…The asteroid Vesta is the smallest known planetary body that has experienced large-scale igneous differentiation. However, it has been previously uncertain…”
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10
Obtaining vector magnetic field maps from single-component measurements of geological samples
Published in Journal of Geophysical Research - Solid Earth (01-06-2009)“…Maxwell's equations can be used to demonstrate that the components of a static magnetic field in a region of space devoid of sources are not independent. This…”
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11
Magnetism on the Angrite Parent Body and the Early Differentiation of Planetesimals
Published in Science (American Association for the Advancement of Science) (31-10-2008)“…Angrites are among the oldest known pristine basaltic meteorites and record the earliest stages of planet formation and differentiation. Our paleomagnetic…”
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12
A Portable Magnetometer for Magnetic Measurements of Meter‐Sized Meteorites
Published in Geochemistry, geophysics, geosystems : G3 (01-11-2020)“…Abstract Meteorites contain records of past magnetic fields in the form of natural remanent magnetization (NRM). A key property of meteorite magnetization that…”
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13
Coagulant plus ballast technique provides a rapid mitigation of cyanobacterial nuisance
Published in PloS one (09-06-2017)“…Cyanobacteria blooms are a risk to environmental health and public safety due to the potent toxins certain cyanobacteria can produce. These nuisance organisms…”
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14
Paleomagnetic analysis using SQUID microscopy
Published in Journal of Geophysical Research - Solid Earth (01-09-2007)“…Superconducting quantum interference device (SQUID) microscopes are a new generation of instruments that map magnetic fields with unprecedented spatial…”
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15
Using TNT-NN to unlock the fast full spatial inversion of large magnetic microscopy data sets
Published in Earth, planets, and space (04-02-2019)“…Modern magnetic microscopy (MM) provides high-resolution, ultra-high-sensitivity moment magnetometry, with the ability to measure at spatial resolutions better…”
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16
Paleointensity of the ancient Martian magnetic field
Published in Geophysical research letters (01-12-2008)“…Mars today has no core dynamo magnetic field. However, the discovery of remanent magnetization in Martian meteorites and intense crustal magnetization suggests…”
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17
Fast automated method for the direct determination of total antimony in grape juice samples by hydride generation and atomic fluorescence spectrometric detection without external pretreatment
Published in Food chemistry (01-07-2022)“…•Efficient and reliable acidic antimony extraction in grape juice.•Direct determination of total Sb without sample decomposition step.•Fast sample processing…”
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18
Secondary magnetite in ancient zircon precludes analysis of a Hadean geodynamo
Published in Proceedings of the National Academy of Sciences - PNAS (08-01-2019)“…Zircon crystals from the Jack Hills, Western Australia, are one of the few surviving mineralogical records of Earth’s first 500 million years and have been…”
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A fast and sensitive flow-batch method with hydride generating and atomic fluorescence spectrometric detection for automated inorganic antimony speciation in waters
Published in Talanta (Oxford) (15-01-2020)“…In this paper, a flow-batch analysis (FBA) system, hydride generation (HG), and atomic fluorescence spectrometry (AFS) are coupled for the first time to…”
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Decline of the lunar core dynamo
Published in Earth and planetary science letters (15-10-2014)“…Recent analyses of Apollo samples have demonstrated that a core dynamo existed on the Moon between at least 4.25 and 3.56 billion years ago (Ga) with surface…”
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