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searching for Crater counting 20 found (40 total)

Libya Montes (320 words) [view diff] exact match in snippet view article find links to article

and coastlines. Crater size - frequency distribution measurements ("crater counting") revealed that the majority of valleys were formed early in Martian

Tharsis Tholus (1,533 words) [view diff] exact match in snippet view article find links to article

with the main one taking up the northern two thirds of the structure. Crater counting shows that the oldest parts of Tharsis Tholus formed around 3.82 billion

Victoria quadrangle (2,076 words) [view diff] exact match in snippet view article find links to article

"Cratering in the Earth-Moon system: Consequences for age determination by crater counting". Lunar Science Conference, 6th Proceedings. pp. 2597–2620. Hartmann

Geological history of Mars (1,859 words) [view diff] exact match in snippet view article find links to article

determine absolute ages. Unfortunately, practical difficulties in crater counting and uncertainties in estimating the flux still create huge uncertainties

Ascraeus Mons (2,739 words) [view diff] exact match in snippet view article find links to article

across and 3.4 km deep and is the youngest of the collapse structures. Crater counting indicates that the central caldera is about 100 million years (Myr)

Aeolis Mensae (2,711 words) [view diff] no match in snippet view article find links to article

which are at least 600 million years old. These ages were derived from crater-counting methods; the valley floors have been subject to much resurfacing and

Tiger stripes (Enceladus) (1,637 words) [view diff] exact match in snippet view article

suggesting a very young surface age. Surface age estimates based on crater counting yielded an age of 4–100 million years assuming a lunar-like cratering

Hydra (moon) (2,623 words) [view diff] exact match in snippet view article

geometric albedo, or its reflectivity, of 83 percent. Derived from crater counting data from New Horizons, the surface of Hydra is estimated to be about

Nix (moon) (2,613 words) [view diff] exact match in snippet view article

reaction of methane with ultraviolet radiation from the Sun. Derived from crater counting data from New Horizons, the age of Nix's surface is estimated to be

Tsiolkovskiy (crater) (998 words) [view diff] no match in snippet view article

A. (1988). "Age dating of mare in the lunar crater Tsiolkovsky by crater-counting method". Earth, Moon, and Planets. 42: 245–264. doi:10.1007/bf00058489

Lada Terra (1,784 words) [view diff] exact match in snippet view article find links to article

pahoehoe-type flows, and the reasons behind this are still unclear. Using crater counting methods scientists have dated the surface of Venus to be between 300

Moon rock (3,384 words) [view diff] exact match in snippet view article find links to article

derived from the highlands. Based on the age-dating technique of "crater counting," the youngest basaltic eruptions are believed to have occurred about

Pamela L. Gay (2,270 words) [view diff] exact match in snippet view article find links to article

characterization of surface features using visual data provided by NASA missions. Crater counting is described as "a valuable exercise, but it's hard to automate." Surface

Elysium quadrangle (4,833 words) [view diff] exact match in snippet view article find links to article

Odyssey Orbiter (2001) and Mars Reconnaissance Orbiter (2006). Through crater counting, they found differences in age between the northwest and the southeast

Noachian (5,090 words) [view diff] case mismatch in snippet view article find links to article

Timing of Martian Valley Network Activity: Constraints from Buffered Crater Counting. Icarus, 195, 61–89. Fassett, C.I.; Head, J.W. (2008b). Valley Network-Fed

Geology of Mars (7,267 words) [view diff] exact match in snippet view article find links to article

bombardment that are now covered by a veneer of younger deposits. Crater counting studies of QCDs suggest that the underlying surface in the northern

Northeast Syrtis (2,121 words) [view diff] exact match in snippet view article find links to article

planet dating method. Unlike Earth, planet dating mainly relies on crater counting, a method based on the assumption that the number of impact craters

Enceladus (14,862 words) [view diff] exact match in snippet view article find links to article

Cashmere Sulci. Without samples to provide absolute age determinations, crater counting is currently the only method for determining surface age on most planetary

Geology of Venus (6,404 words) [view diff] exact match in snippet view article find links to article

pressure of the average human bite. Dating geological formations by crater counting is a long established and relatively inexpensive mainstay of planetary

Water on Mars (30,130 words) [view diff] exact match in snippet view article find links to article

timing of martian valley network activity: Constraints from buffered crater counting". Icarus. 195 (1): 61–89. Bibcode:2008Icar..195...61F. doi:10.1016/j