Aristarchus Crater as a Probe of the Lunar Crusts Most Fractionated Rock
نویسندگان
چکیده
منابع مشابه
The ‘cool-tropics paradox’ in palaeoclimatology
Over one thousand lunar transient events have been reported since the 1600s when telescopes were fi rst developed. Astronomer William Herschel during 1783–1787 reported several apparent lunar volcanic emissions: ‘I perceived in the dark part of the Moon a luminous spot. It had the appearance of a red star.’ Four years later Herschel wrote, ‘I perceive three volcanoes ... The third shows signs o...
متن کاملRemote compositional analysis of lunar olivine‐rich lithologies with Moon Mineralogy Mapper (M) spectra
[1] A systematic approach for deconvolving remotely sensed lunar olivine‐rich visible to near‐infrared (VNIR) reflectance spectra with the Modified Gaussian Model (MGM) is evaluated with Chandrayaan‐1 Moon Mineralogy Mapper (M) spectra. Whereas earlier studies of laboratory reflectance spectra focused only on complications due to chromite inclusions in lunar olivines, we develop a systematic ap...
متن کاملApplication of a New Method for Exploring the Copernican Cratering Record
Introduction: Here we investigate the Copernican-era lunar impact flux using a new method for determining crater ages. Customarily, geological maps and crater counting methods have been used to determine the ages of lunar terrains and individual features. Those methods, however, are (i) extremely time consuming, (ii) are limited by image quality, image availability, and the need to identify sma...
متن کاملMoon ' Near - Infrared Spectral Reflectance , A First Good Look
A positive identification of the minerals olivine, plagioclase, and several types of pyroxenes were made at several ocations on the lunar surface by using remote measurements. For example, the crater Aristarchus is found to have an average pyroxene composition of augite, and plagioclase is obviously present. A dark mantle deposit in the crater J. Herschel is at least partly composed of a mixtur...
متن کاملAges and stratigraphy of mare basalts in Oceanus Procellarum, Mare Nubium, Mare Cognitum, and Mare Insularum
[1] Accurate estimates of mare basalt ages are necessary to place constraints on the duration and the flux of lunar volcanism as well as on the petrogenesis of lunar mare basalts and their relationship to the thermal evolution of the Moon. We performed new crater size-frequency distribution measurements in order to investigate the stratigraphy of mare basalts in Oceanus Procellarum and related ...
متن کامل