One of the main goals of the Apollo 16 mission was to explore and sample a young bright rayed crater aptly named North Ray crater (890 m diameter). Its high albedo is due to its young age. …

results confirm that Cone crater is younger than North Ray crater. However, the formation ages of Cone and North Ray craters have larger uncertainties than previously

Our derived model ages of the ejecta blankets of North Ray, Tycho, and Copernicus agree well with radiometric and exposure ages of the Apollo 16, 17, and 12 landing sites, respectively, …

Cosmic-ray exposure ages for two breccias, 68815 and 69935, in the vicinity of South Ray Crater give consistent values of 2.0 plus or minus 0.2 m.y. when measured by the Kr-81-Kr, Na-22 …

Cosmic ray exposure (CRE) ages of rocks that were ejected by the impacts that created Cone and North Ray craters provide two crucial calibration points at <100 Ma for the lunar cratering …

Concordant Kr-81/Kr exposure ages for four station 11 breccias indicate an age of 50.3 plus or minus 0.8 m.y. for North Ray Crater. Ray structures visible from orbital photography suggest …

We report new CSFD measurements for the Copernican-aged craters North Ray, Tycho, and Copernicus, which are crucial anchor points for the lunar cratering chronology. We also …

The ages of Eratosthenian and Copernican craters remain: ∼ 2.1 (?) Gyr (Autolycus), 800 ± 15 Myr (Copernicus), 109 ± 4 Myr (Tycho), 50.3 ± 0.8 (North Ray crater, Apollo 16), and 25.1 ± 1.2 …

Jul 5, 2023 · The smallest investigated crater, North Ray (D ∼ 1 km), was visited and sampled during the Apollo 16 mission, where the exposure age of some material collected nearby …

Cosmic-ray exposure ages of lunar samples have been used to date surface features related to impact cratering and downslope movement of material. Only when multiple samples related to …

Feb 1, 1973 · Previous research has shown that North Ray is a young crater with a geological age of about 49 million years [46]. ... The lunar crater production function describes the general …

Mar 9, 2012 · (PhysOrg.com) -- One of the main goals of the Apollo 16 mission was to explore and sample a young bright-rayed crater aptly named North Ray crater (890 m diameter). Its high …

Oct 1, 1974 · Concordant 81 K-Kr exposure ages for four station 11 breccias indicate an age of 50.3 ± 0.8m.y. for North Ray Crater. Ray structures visible from orbital photography suggest …

Jul 5, 2023 · In this study, we present the use of a Crater Detection Algorithm (CDA) to extract crater populations on Lunar Reconnaissance Orbiter—Narrow Angle Camera (LRO‐NAC) and …

Feb 21, 2012 · Our derived model ages of the ejecta blankets of North Ray, Tycho, and Copernicus agree well with radiometric and exposure ages of the Apollo 16, 17, and 12 landing …

A flux of crater producing objects can be inferred from size-frequency distributions of small craters on the flanks and ejecta of craters of known age. Crater frequency distributions and data on …

In this study, we determined the CRE ages of eight Apollo 14 and 16 samples based on noble gas (He-Ne-Ar) analyses by single-step heating and static mass spectrometry to re-assess the …

3 days ago · Assuming a similar distribution of excavating impacts along the entire crater ray implies a total kinetic ... of north as implied by the orientation of crater ... +0.013-0.014 Ga age ...