Spectral and photogeologic mapping of Schrödinger Basin and implications for post-South Pole-Aitken impact deep subsurface stratigraphy

Kramer, G. Y.; Kring, D. A.; Nahm, A. L.; Pieters, C. M.

doi:10.1016/j.icarus.2012.11.008

Cited by 75 publications

(112 citation statements)

References 62 publications

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“…These simulations suggest that, as crater size increases, the rocks that form peak rings originate from increasingly deeper depths (38). This relationship means that the composition of the peak-ring lithology provides information on the crustal composition and layering of planetary bodies, and be used to verify formation models, such as for the Moon (e.g., 6,[38][39]. One of the principal observations used to support a version of the nested melt-cavity hypothesis in Baker et al (7) is that peak rings within basins of all sizes on the Moon contain abundant crystalline anorthosite and must, therefore, originate from the upper crust if indeed the lower crust is noritic.…”

Section: Continental Scientific Drilling Program (Icdp)mentioning

confidence: 90%

The formation of peak rings in large impact craters

Morgan

Gulick

Bralower

et al. 2016

Science

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203

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Large impacts provide a mechanism for resurfacin g planets through mixing near-surface rocks with deeper material. Central peaks are formed from the dynamic uplift of rocks during crater formation. As crater size increases, central peak s transition to peak ri ngs. Without samples, debate surrounds the mechanics of peak-ring formation and their depth of origin. Chicxulub is the only known impact structure on Earth with an unequivocal peak ring, but it is buried and only accessible through drilling. Ex pedition 364 sampled the Chicxulub peak ring, which we found was formed from uplifted, fractured, shocked, felsic basement rocks. The peak-ring rocks are cross-cut by dikes and shear zones and have an unusually low density and seismic velocity. Large impacts therefore generate vertical fluxes and increase porosity in planetary crust

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Section: Continental Scientific Drilling Program (Icdp)mentioning

confidence: 90%

The formation of peak rings in large impact craters

Morgan

Gulick

Bralower

et al. 2016

Science

Self Cite

203

246

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“…The deposits are morphologically distinct from the surrounding terrain and their 288 M 3 spectral heterogeneities suggest the deposits are more FeO-rich than the surrounding basin floor 289 (Kramer et al, 2013). This type of volcanic material was emplaced by a volatile-driven fire fountain 290 eruption (Rutherford and Papale, 2009;Wetzel et al, 2015;Fig.…”

Section: The Short Traverse 274mentioning

confidence: 99%

“…5a, b). Spectral 311 observations from the Kaguya spacecraft and the M 3 instrument indicate the presence of anorthositic, 312 noritic, and troctolitic lithologies at the peak ring (Kramer et al, 2013) (Fig. 1).…”

Section: The Short Traverse 274mentioning

confidence: 99%

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Analyses of robotic traverses and sample sites in the Schrödinger basin for the HERACLES human-assisted sample return mission concept

Steenstra¹,

Martín

McDonald

et al. 2016

Advances in Space Research

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20 21Near-future exploration of the Moon will likely be conducted with human-operated robotic assets. 22Previous studies have identified the Schrödinger basin, situated on the far side of the Moon, as a prime 23 target for lunar science and exploration where a significant number of the scientific concepts reviewed 24 by the National Research Council (NRC, 2007) can be addressed. In this study, two robotic mission 25 traverses within Schrödinger basin are proposed based on a 3 year mission plan in support of the 26 HERACLES human-assisted sample return mission concept. A comprehensive set of modern remote 27 sensing data (LROC imagery, LOLA topography, M 3 and Clementine spectral data) has been 28 integrated to provide high-resolution coverage of the traverses and to facilitate identification of 29 specific sample localities. We also present a preliminary Concept of Operations (ConOps) study based on 30 a set of notional rover capabilities and instrumental payload. An extended robotic mission to 31 Schrödinger basin will allow for significant sample return opportunities from multiple distinct geologic 32 terrains and will address multiple high-priority NRC (2007) scientific objectives. Both traverses will offer 33 the first opportunity to (i) sample pyroclastic material from the lunar farside, (ii) sample Schrödinger 34 impact melt and test the lunar cataclysm hypothesis, (iii) sample deep crustal lithologies in an uplifted 35 peak ring and test the lunar magma ocean hypothesis and (iv) explore the top of an impact melt sheet, 36 enhancing our ability to interpret Apollo samples. The shorter traverse will provide the first opportunity 37 to sample farside mare deposits, whereas the longer traverse has significant potential to collect SPA 38 impact melt, which can be used to constrain the basin-forming epoch. 39 40

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“…Spectral analyses of the lunar surface captured from the orbiting Chandrayan-1 spacecraft indicate the peak ring is composed of anorthositic, noritic, and olivine-bearing (e.g., troctolite or dunite) rocks from deep crustal or even upper mantle depths (Kramer et al, 2013). Those rock types occur in spectacular outcrops (Fig.…”

Section: Exposed Peak-ring Cratersmentioning

confidence: 99%

Chicxulub and the Exploration of Large Peak-Ring Impact Craters through Scientific Drilling

Kring¹,

Claeys²,

Gulick³

et al. 2017

GSAT

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The Chicxulub crater is the only well-preserved peak-ring crater on Earth and linked, famously, to the K-T or K-Pg mass extinction event. For the first time, geologists have drilled into the peak ring of that crater in the International Ocean Discovery Program and International Continental Scientific Drilling Program (IODP-ICDP) Expedition 364. The Chicxulub impact event, the environmental calamity it produced, and the paleobiological consequences are among the most captivating topics being discussed in the geologic community. Here we focus attention on the geological processes that shaped the ~200-km-wide impact crater responsible for that discussion and the expedition’s first year results

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Spectral and photogeologic mapping of Schrödinger Basin and implications for post-South Pole-Aitken impact deep subsurface stratigraphy

Cited by 75 publications

References 62 publications

The formation of peak rings in large impact craters

The formation of peak rings in large impact craters

Analyses of robotic traverses and sample sites in the Schrödinger basin for the HERACLES human-assisted sample return mission concept

Chicxulub and the Exploration of Large Peak-Ring Impact Craters through Scientific Drilling

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