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- 50 m.yA chip from a large boulder on the rim of North Ray Crater gives a Kr-81-Kr age of 50.6 plus or minus 3.8 m.y. Similar ages are found by the Na-22-Ne and the particle track methods. The agreement of this result with other data on large North Ray boulders fixes the age of North Ray Crater as 50 m.y.Author: C. Behrmann, G. Crozaz, R. Drozd, C. Hohenberg, C. Ralston, R. Walker, D. YuhasPublish Year: 1973
ntrs.nasa.gov/search.jsp?R=19740040182 - See all on Wikipedia
North Ray (crater) - Wikipedia
North Ray crater is a small crater in the Descartes Highlands of the Moon visited by the astronauts of Apollo 16. The name of the crater was formally adopted by the IAU in 1973. It is the largest crater sampled by astronauts during the Apollo program. The Apollo 16 Lunar Module (LM) Orion landed between North Ray … See more
Based on sample 67955, a noritic anorthosite collected from Outhouse Rock, the impact that created North Ray crater was about 50 million … See more
• Geology of North Ray Crater, Section D2 of Geological Survey Professional Paper 1048, by George E. Ulrich. 1981.
• Apollo 16 Traverses, 78D2S2(25), Lunar and Planetary Institute See more
Wikipedia text under CC-BY-SA license How old are young lunar craters? - Hiesinger - 2012
Feb 21, 2012 · After thoroughly reviewing the published ages of North Ray crater, Stöffler and Ryder concluded that the age of North Ray crater is 50.3 ± 0.8 …
- Author: H. Hiesinger, C. H. Van Der Bogert, J. H. Pasckert, L. Funcke, L. Giacomini, L. R. Ostrach, Mark Rob...
- Cited By: 137
- Publish Year: 2012
- Published: 21 February 2012
Boulder Distributions Around Young, Small Lunar …
Oct 15, 2019 · North Ray—North Ray crater (8.82°S, 15.49°E), the largest of our study sites, is a 950-m crater also located in the Descartes Highlands, north of …
- Author: R. N. Watkins, B. L. Jolliff, K. Mistick, K. Mistick, C. Fogerty, S. J. Lawrence, K. N. Singer, R. R...
- Cited By: 37
- Publish Year: 2019
- Published: 15 October 2019
How Young is Young? | Lunar Reconnaissance …
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. During an impact event geologic material from …
Cosmic-ray exposure history at the Apollo 16 and other lunar sites ...
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 …
- Author: R.J Drozd, C.M Hohenberg, C.J Morgan, C.E Ralston
- Publish Year: 1974
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
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Pre-Imbrian craters and basins: ages, compositions and …
Nov 1, 1978 · The exposure ages cluster strongly around 50 × 10 6 y. the age of North Ray Crater. The oldest, Group 1 fragments are all anorthositic metamorphosed breccias of light-matrix …
Cosmic-ray exposure history of North Ray and South Ray …
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 ages of features and events at the Apollo …
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 …
Lunar Surface Model Age Derivation: Comparisons Between …
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 (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 …
Apollo 16: What young really means on the moon - Phys.org
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 …
Cosmic-ray exposure history of North Ray and South Ray material
Feb 1, 1973 · A chip from a large boulder on the rim of North Ray Crater gives a Kr-81-Kr age of 50.6 plus or minus 3.8 m.y. Similar ages are found by the Na-22-Ne and the particle track …
Krypton and xenon in some lunar samples and the age of North …
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 …
Cosmic-ray exposure history at the Apollo 16 and other lunar sites ...
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 …
(PDF) Lunar Surface Model Age Derivation: Comparisons
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 …
Noble gas exposure ages of samples from Cone and North Ray …
Nov 1, 2021 · 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 …
Earth's oldest-known impact crater discovered in outback WA
18 hours ago · The discovery of a 3.47-billion-year-old crater in WA's Pilbara region pushes back the age of the earliest-known impact site on Earth by more than one billion years.
Noble gas exposure ages of samples from Cone and North Ray …
Nov 1, 2021 · 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 …
Earth’s oldest impact crater was just found in Australia – exactly ...
8 hours ago · The crater formed more than 3.5 billion ... we began the long drive north from Perth for two weeks of fieldwork in ... This meant the impact had to be the same age as the Antarctic …
Distribution and provenance of lunar highland rock types at North …
Attention is given to aspects of selenography and location of samples, the ejecta distribution of post-Cayley impact craters, sample classification, the frequency distribution of rock types in …
Earth’s oldest meteorite crater found in Australia
2 hours ago · The recently discovered site is located about 660 miles north of Yarrabubba crater in Western Australia. ... 500-year-old Transylvanian diaries detail the peril of the Little Ice Age …
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