Notes on landing sites: Apollo 14 in Fra Mauro, Iif terrain, Imbrium ejecta. Apollo 12 in Oceanus Procellarum, Em terrain, mare <3.2 Ga old. Apollo 16 in Descartes Highlands, It terrain, megaregolith?
CC irons (IID, IVB) shock ages? CC irons CRE ages? OC formation ages? CC formation ages? EC formation ages? HED formation ages? iron formation ages? iron IAB^non-magmatic .. Kalliope? iron IIIAB^magmatic .. Hertha? Pal shock ages? (not found) Ang shock ages? Bra shock ages? an shock-age model for Flora? What NC vs. CC iron means? <- Mo, Cr, Ti, Ni isotopes
| class | crystallisation | shock | exposure | |
| H | |
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| L | |
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| LL | |
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| HED | |
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| Euc | |
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| Dio | |
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| How | |
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| Mes | |
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| EC | |
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Q: Isn't it a too smooth? A cooling (formation) sequence? |
| EH | |
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EL and EH CRE agees are too similar! cf. Athor (EL)? | |
| EL | |
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| Aub | |
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| iron | |
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iron CRE ages can be used similarly as shock ages! | |
| iron_IAB | |
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iron survives collisional cascade much longer than Win | |
| iron_IIIAB | |
iron survives collisional cascade longer than Pal | ||
| Lun | |
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On the Moon, Ar-Ar may not be only shock, but formation! Q: Why Flora is not visible?! Limited area of craters? Only in Apollo 16. Q: Why Massalia is not visible?! Ditto. Only in basalts? Q: Why Apollo 16 is narrow? A specific location (Descartes Highlands). | |
| Lun-ano | |
Q: Why anortozites have younger shocks than basalts? Isn't it due to sigma's? | ||
| Lun-bas | |
Q: Why basalts show 2 stages? Early vs. late maria formation? Q: Are maria more monolithic than highlands? Yes, regolith is ~1-2 m on the youngest maria! | ||
| Lun, spherules | |
Culler et al. (2000) ages do record Flora, and perhaps also Massalia?!
On the contrary, Zellner (2015) seems to be like constant flux
and then thermal cracking (as in Atacama)?
Note that young spherules might be re-set old spherules. :-(
Notes on landing sites: Apollo 14 in Fra Mauro, Iif terrain, Imbrium ejecta. Apollo 12 in Oceanus Procellarum, Em terrain, mare <3.2 Ga old. Apollo 16 in Descartes Highlands, It terrain, megaregolith? |
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| SNC | |
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On Mars, Ar-Ar may not be shock, but formation! cf. concordant Rb-Sr, ... Q: Why Flora is SO prominent?! Volcanism?! Q: Why Massalia is not visible? Perhaps, in She? |
| She | |
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| Nak | |
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| Cha | |
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Note Cha <-> Nak |
| SNC-Ung | |
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| Ure | |
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shock ages are only for Almahatta Sitta breccia | |
| R | |
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oxidized, sulfidized (troilite FeS); olivine-rich (Berlin et al. 2003) Q: close to snowline? Q: associated to Eos? cf. close to Veritas (8.3 My)! | |
| CM | |