Chapter 5. LUNAR SAMPLES

Papike, J. J.; Ryder, G.; Shearer, C. K.

doi:10.1515/9781501508806-020

Cited by 219 publications

(400 citation statements)

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“…However, most of these Apollo mare basalts are high-Ti basalts (TiO 2 >6 wt%) [24]. Although very low-Ti basalts were also discovered amongst the Apollo 17 samples, olivine in these basalts is Mg-rich (Fo 76-53 [24]), in sharp contrast to those in MIL 05035 and Asuka 881757. Thus, MIL 05035 could not have been derived from the same source of the Apollo and LUNA mare basalts.…”

Section: Possible Source Regions and Originsmentioning

confidence: 97%

SIMS Pb/Pb dating of Zr-rich minerals in lunar meteorites Miller Range 05035 and LaPaz Icefield 02224: Implications for the petrogenesis of mare basalt

Zhang

Hsu

et al. 2010

Sci. China Earth Sci.

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Miller Range (MIL) 05035 and LaPaz Icefield (LAP) 02224 are unbrecciated lunar basalt meteorites. In this report, we studied their petrography and mineralogy and made in situ uranogenic Pb/Pb dating of Zr-rich minerals. Petrography and mineralogy of these two lunar meteorites are consistent with previous investigations. The zirconolite Pb/Pb age of MIL 05035 is 3851±8 Ma (2σ), in excellent agreement with previous reports. This age suggests that MIL 05035 could be paired with Asuka 881757, a low-Ti mare basalt meteorite. The magmatic event related to MIL 05035 was probably due to the late heavy impact bombardment on the moon around 3.9 Ga. One baddeleyite grain in LAP 02224 shows a large variation of Pb/Pb age, from 3109±29 to 3547±21 Ma (2σ), much older than the whole-rock age of the same meteorite (~3.02±0.03 Ga). The other baddeleyite grain in LAP 02224 has an age of 3005±17 Ma (2σ). The result indicates that the minimum crystallization age of LAP 02224 is ~3.55 Ga and the younger ages could reflect late thermal disturbance on U-Pb system. Pb/Pb dating, SIMS, zirconolite and baddeleyite, lunar meteorite, low-Ti mare basalt Citation: Zhang A C, Hsu W B, Li Q L, et al. SIMS Pb/Pb dating of Zr-rich minerals in lunar meteorites Miller Range 05035 and LaPaz Icefield 02224: Implications for the petrogenesis of mare basalt.

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Section: Possible Source Regions and Originsmentioning

confidence: 97%

SIMS Pb/Pb dating of Zr-rich minerals in lunar meteorites Miller Range 05035 and LaPaz Icefield 02224: Implications for the petrogenesis of mare basalt

Zhang

Hsu

et al. 2010

Sci. China Earth Sci.

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“…Among these, the oldest ($4.1-4.5 Ga) are the magnesiansuite norites, troctolites, and dunites, some of which may have formed contemporaneously with the FANs; these were followed by the alkali-suite ($4.0-4.3 Ga), granites/felsites ($3.8-4.3), KREEP basalts ($3.8-4.0 Ga), and quartz monzodiorite rocks ($4.3 Ga) (Edmunson et al, 2009;Nyquist and Shih, 1992;Papike et al, 1998;Snyder et al, 2000;and references therein). The ages of the oldest lunar samples and model ages of cumulate sources are summarized in Figure 12.…”

Section: Planetary Materialsmentioning

confidence: 99%

Solar System Time Scales from Long-Lived Radioisotopes in Meteorites and Planetary Materials

Wadhwa

2014

Treatise on Geochemistry

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“…These rocks typically contain 0.4-1 lg/g Th, 3-6 wt% FeO, and 25-28 wt% Al 2 O 3 . (See Papike et al (1998) for compilations of lunar rock compositions. )…”

Section: Feldspathic Highlands Terrane (Fht)mentioning

confidence: 99%