Ilmenite exsolution schemes in Apollo-17 high-Ti basalts
Conference
·
OSTI ID:7003961
- Los Alamos National Lab., NM (USA)
- College of St. Thomas, St. Paul, MN (USA). Dept. of Geology
Combined electron microprobe and scanning electron microscope (SEM) x-ray image analyses are used to obtain semiquantitative data on the relations between ilmenite grains and their exsolved chromite and rutile. Comparisons of these data for ilmenites in four Apollo-17 high-Ti basalts with a database of electron microprobe analyses from the literature indicates that Cr expulsion from ilmenite can be as important as Fe{sup 2+} reduction in causing subsolidus exsolution of chromite and rutile from ilmenite. 12 refs., 4 figs., 5 tabs.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOD; National Aeronautics and Space Administration (NASA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7003961
- Report Number(s):
- LA-UR-90-1897; CONF-9003166-1; ON: DE90011992
- Resource Relation:
- Conference: 21. lunar and planetary science conference, Houston, TX (USA), Mar 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
BASALT
ELECTRON MICROPROBE ANALYSIS
SCANNING ELECTRON MICROSCOPY
ILMENITE
SEPARATION PROCESSES
IRON
REDUCTION
CHEMICAL COMPOSITION
CHROMIUM
COMPILED DATA
IMAGES
LUNAR MATERIALS
RUTILE
TITANIUM
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DATA
ELECTRON MICROSCOPY
ELEMENTS
IGNEOUS ROCKS
INFORMATION
IRON COMPOUNDS
IRON OXIDES
MATERIALS
METALS
MICROANALYSIS
MICROSCOPY
MINERALS
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
ROCKS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VOLCANIC ROCKS
580000* - Geosciences
BASALT
ELECTRON MICROPROBE ANALYSIS
SCANNING ELECTRON MICROSCOPY
ILMENITE
SEPARATION PROCESSES
IRON
REDUCTION
CHEMICAL COMPOSITION
CHROMIUM
COMPILED DATA
IMAGES
LUNAR MATERIALS
RUTILE
TITANIUM
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DATA
ELECTRON MICROSCOPY
ELEMENTS
IGNEOUS ROCKS
INFORMATION
IRON COMPOUNDS
IRON OXIDES
MATERIALS
METALS
MICROANALYSIS
MICROSCOPY
MINERALS
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
ROCKS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VOLCANIC ROCKS
580000* - Geosciences