4.4 Article

Automatic Bulk Composition Analysis of Lunar Basalts: Novel Big- Data Algorithm for Energy-Dispersive X-ray Spectroscopy

Related references

Note: Only part of the references are listed.
Article Geochemistry & Geophysics

Titanium in olivine reveals low-Ti origin of the Chang'E-5 lunar basalts

Di Zhang et al.

Summary: China's Chang'E-5 mission has provided new samples from the Moon, which have led to a reassessment of the lunar volcanic activity. The study shows that the Chang'E-5 basalts are low-Ti type, challenging previous understanding of the moon's thermal and magmatic evolution. This finding is significant for our understanding of the moon's geological history.

LITHOS (2022)

Article Multidisciplinary Sciences

Characteristics of the lunar samples returned by the Chang'E-5 mission

Chunlai Li et al.

Summary: The CE-5 lunar sample collected by China's Chang'E-5 mission is consistent with weathered mare basalts in terms of mineralogy and petrochemistry. It is classified as a low-Ti/low-Al/low-K type with lower rare-earth-element (REE) contents compared to KREEP. This new sample, characterized by high FeO and low Mg index, could potentially represent a new class of lunar basalt.

NATIONAL SCIENCE REVIEW (2022)

Article Multidisciplinary Sciences

Mineral chemistry and 3D tomography of a Chang'E 5 high-Ti basalt: implication for the lunar thermal evolution history

Yun Jiang et al.

Summary: In this study, a basalt sample collected from China's Chang'E-5 mission was analyzed using state-of-the-art techniques. The results revealed the petrology and mineralogy of the sample, which showed similarities to high-Ti basalts from the Apollo and Luna missions. This study provides important evidence for the geological context at the Chang'E-5 landing site.

SCIENCE BULLETIN (2022)

Article Spectroscopy

Quantitative Analysis of Bulk Composition of Small-size Lunar Samples Using Energy Dispersive X-ray Spectroscopy

Jiangyan Yuan et al.

Summary: A non-destructive technique using scanning electron microscopy and energy dispersive X-ray spectroscopy (EDS) mapping has been developed to determine the bulk composition of rare lunar samples with small sizes. This method is reliable and accurate for quantitative analysis of small-sized samples. It is significant for research on the bulk compositions of Chang'E-5 lunar samples and terrestrial and extraterrestrial samples at the micron- to centimeter-scale.

ATOMIC SPECTROSCOPY (2022)

Article Geochemistry & Geophysics

Magmatic chlorine isotope fractionation recorded in apatite from Chang'e-5 basalts

Jianglong Ji et al.

Summary: Studying the chlorine (Cl) isotope characteristics and fractionation mechanisms in volcanic lunar samples collected by China's Chang'e-5 mission provides insights into lunar volcanic processes and volatile inventory, shedding light on the primordial Cl isotopic signature of the Moon.

EARTH AND PLANETARY SCIENCE LETTERS (2022)

Article Geochemistry & Geophysics

Bulk compositions of the Chang'E-5 lunar soil: Insights into chemical homogeneity, exotic addition, and origin of landing site basalts

Keqing Zong et al.

Summary: The chemical composition study of CE-5 lunar soil shows that its major and trace elements are uniform and representative of the underlying basalt; CE-5 soil differs from basalt and soils returned by Apollo and Luna missions, but the depletion of volatile or siderophile elements in their mantle sources is comparable; The mantle source of CE-5 basalt may contain KREEP components, likely as trapped interstitial melts.

GEOCHIMICA ET COSMOCHIMICA ACTA (2022)

Article Geosciences, Multidisciplinary

A Raman Spectroscopic and Microimage Analysis Perspective of the Chang'e-5 Lunar Samples

Haijun Cao et al.

Summary: Through detailed Raman spectroscopic analysis, the mineralogical characteristics of CE-5 soils were evaluated, showing distinct differences in mineral chemistry and modal abundance compared to Apollo rocks, possibly representing a new type of mare basalt. The presence of minor Mg-rich materials suggests contamination from exogenous sources, and micrometeorite reworking dominates the regolith evolution of CE-5 soils.

GEOPHYSICAL RESEARCH LETTERS (2022)

Article Spectroscopy

Quantitative verification of 1:35 diluted fused glass disks with 10 mg sample sizes for the wavelength-dispersive X-ray fluorescence analysis of the whole-rock major elements of precious geological specimens

Ding-Shuai Xue et al.

Summary: Herein, an improved wavelength-dispersive X-ray fluorescence (WD-XRF) analytical technique was developed for determining the major elements in precious geological samples, particularly extraterrestrial basaltic rock samples. The method involved the preparation of undersized glass disks, construction of calibration curves, investigation of various factors, validation using synthetic reference glass samples and certified reference materials, and comparison with inductively coupled plasma optical emission spectroscopy results. The proposed method showed great application potential, especially for precious samples like lunar soil samples.

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY (2022)

Article Geochemistry & Geophysics

Quantitative Mineral Mapping of Drill Core Surfaces I: A Method for μXRF Mineral Calculation and Mapping of Hydrothermally Altered, Fine-Grained Sedimentary Rocks from a Carlin-Type Gold Deposit

Rocky D. Barker et al.

Summary: This study utilized micro-X-ray fluorescence (μXRF) and linear programming (LP) to determine mineral distributions and abundances in drill core samples from Carlin-type gold deposits. The results showed that μXRF data analysis can provide accurate mineralogical structures, abundances, and textures. By comparing results from different methods and standards, the study demonstrates the significance of μXRF technology in mineralogical studies of fine-grained sedimentary rocks.

ECONOMIC GEOLOGY (2021)

Article Geochemistry & Geophysics

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

Laura J. A. Rzehak et al.

Summary: The equilibrium between Ti oxides and silicate melt leads to Ti isotope fractionation in terrestrial and lunar samples, with differences in valence potentially affecting Ti stable isotope fractionation during petrogenesis. Experimental results show redox-dependent Ti isotope fractionation during mare basalt petrogenesis, illustrating the importance of considering lunar environmental conditions in evaluating Ti isotope fractionation resulting from lunar magmatism.

CONTRIBUTIONS TO MINERALOGY AND PETROLOGY (2021)

Article Geochemistry & Geophysics

Young lunar mare basalts in the Chang'e-5 sample return region, northern Oceanus Procellarum

Yuqi Qian et al.

Summary: Chang'e-5 is China's first lunar sample return mission, targeting to land in the northern Oceanus Procellarum region for various geological reasons. The Em4 mare basalts, which cover an area of 37,000 km(2) and are high-Ti basalts from the Eratosthenian age, will provide significant insights into lunar geology.

EARTH AND PLANETARY SCIENCE LETTERS (2021)

Article Multidisciplinary Sciences

Two-billion-year-old volcanism on the Moon from Chang'e-5 basalts

Qiu-Li Li et al.

Summary: The study reports the youngest crystallization age of lunar basalts obtained through radiometric dating, extending the duration of lunar volcanic activity and providing a crucial calibration point for crater-counting chronology in the inner Solar System, shedding light on the volcanic and thermal history of the Moon.

NATURE (2021)

Article Multidisciplinary Sciences

Age and composition of young basalts on the Moon, measured from samples returned by Chang'e-5

Xiaochao Che et al.

Summary: By analyzing the youngest basalt lavas on the Moon, scientists have determined their age to be 1963 million years. This finding provides important constraints on the formation history and thermal evolution of the Moon. Additionally, there is no evidence for high concentrations of heat-producing elements in the deep mantle of the Moon, suggesting the need for alternative mechanisms to explain the continuous formation of lunar magmatism.

SCIENCE (2021)

Article Multidisciplinary Sciences

Non-KREEP origin for Chang'e-5 basalts in the Procellarum KREEP Terrane

Heng-Ci Tian et al.

Summary: The study of basalt clasts from the PKT returned by Chang'e-5 mission reveals that these two-billion-year-old basalts are not derived from KREEP mantle source, but produced high abundances of rare-earth elements and thorium through low-degree partial melting and extensive fractional crystallization. This suggests that the KREEP association may not be a prerequisite for young mare volcanism, indicating a more sustained cooling history of the lunar interior to generate the Moon's youngest melts.

NATURE (2021)

Article Chemistry, Analytical

Quantitative verification of 1: 100 diluted fused glass beads for X-ray fluorescence analysis of geological specimens

Ding-Shuai Xue et al.

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY (2020)

Article Geochemistry & Geophysics

Petrogenesis and Shock Metamorphism of Basaltic Lunar Meteorites Northwest Africa 4734 and 10597

J. Chen et al.

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS (2019)

Article Geochemistry & Geophysics

Abundance, major element composition and size of components and matrix in CV, CO and Acfer 094 chondrites

Denton S. Ebel et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2016)

Article Geochemistry & Geophysics

Silica polymorphs in lunar granite: Implications for granite petrogenesis on the Moon

Stephen M. Seddio et al.

AMERICAN MINERALOGIST (2015)

Article Geochemistry & Geophysics

The origin of young mare basalts inferred from lunar meteorites Northwest Africa 4734, 032, and LaPaz Icefield 02205

Stephen M. Elardo et al.

METEORITICS & PLANETARY SCIENCE (2014)

Article Multidisciplinary Sciences

Origin and age of the earliest Martian crust from meteorite NWA 7533

M. Humayun et al.

NATURE (2013)

Article Instruments & Instrumentation

Is Scanning Electron Microscopy/Energy Dispersive X-ray Spectrometry (SEM/EDS) Quantitative?

Dale E. Newbury et al.

SCANNING (2013)

Article Materials Science, Multidisciplinary

EDS Measurements of X-Ray Intensity at WDS Precision and Accuracy Using a Silicon Drift Detector

Nicholas W. M. Ritchie et al.

MICROSCOPY AND MICROANALYSIS (2012)

Article Geochemistry & Geophysics

Lunar Mare Volcanism: Where Did the Magmas Come From?

Timothy L. Grove et al.

ELEMENTS (2009)

Article Geochemistry & Geophysics

Petrogenesis of picritic mare magmas: Constraints on the extent of early lunar differentiation

John Longhi

GEOCHIMICA ET COSMOCHIMICA ACTA (2006)

Article Chemistry, Analytical

Comparison of wet microwave digestion methods of plant materials for the determination of metals by flame atomic absorption spectrometry

S Walas et al.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2004)