Studies of crater size-frequency distribution indicate Most craters larger than 2 km in diameter areĭistributed in the western mare of the selected landing area, where the crater density is Sizes and depths, and narrow lunar rilles. 2a and b), such as wrinkle ridges, Mons Rümker, craters of varied Terrains are distributed in the Oceanus Procellarum region (Fig. Sampling area show a relatively homogeneous texture and dark color (Figs (Figs1b 1b and and2b).Īlthough the topography of the selected landing area is gentle, geometrically large Plain in the northeastern Oceanus Procellarum (red box in Fig. The CE-5 landing area (41°–45°N, 69°–49°W) is in the relatively flat terrain of the mare Result in a potentially long history of volcanism and a more complex thermal evolutionary history. Relatively thin lunar crust, which might Geochemically anomalous region on the lunar nearside. Oceanus Procellarum, with the largest distribution of lunar mare basalts, is a prominent Geological context of the CE-5 lunar samples This study focuses on the preliminary examination of the lunar samples returned from theĬE-5 mission, to obtain the physical properties, petrography, mineralogy and chemicalĬharacteristics of lunar soils and clasts, providing basic information for subsequent All images areįrom the China Lunar Exploration Data Release Website ( ). The arrows show the trace of scooped sampling. (c) A partial image ofĬE-5 scooped sampling. Using fisheye projection, with a horizontal field of view ∼220°.
The 120 images taken by the panoramic camera onboard the CE-5 lander were mosaiced (b) The panoramic image of the CE-5 landing Sites can be found in Supplementary Table 1. The image data areįrom the CE-1 global digital orthophoto map (DOM). The CE-5 sampling site is in a new area at mid-latitude. Apollo and Luna sampling sites are within 30° of low The distribution of lunar sampling sites and images of the CE-5 sampling site. The returned CE-5 samples mightĬarry information about the youngest volcanic activity on the Moon. Sampling latitude to date, a latitude not reached by the previous Apollo and Luna sampling With longitude and latitude of 51.916°W and 43.058°N. The sampling site is in the northeastern Oceanus Procellarum, Limited sample sites have restricted new cognition of the Moon.Ĭhang’E-5 (CE-5) is a sample return mission in China's lunar exploration strategy of However, Apollo lunar sampling had focused on areas non-representative of the most The scientific return of the Apollo missions’. The Apollo lunar samples were ‘the crown jewels of Structure, the effect of physical properties on lunar exploration and the Moon's surface processes (e.g. Luna missions in the last century have significantly enhanced our understanding of theĭistribution, age and evolution of mare volcanism, the lunar mantle's composition and The returned lunar samples (∼382 kg ) from six Apollo and three
Samples are the key to promoting our scientific research, from remote observations to Succession of events on the Moon was unraveled, a relative time scale was constructed and Using the classical geological principle of superposition, the Indicated that the large craters originated from impact events and that the flat lunar maria Studies of the lunar surface's morphology have Based on these early images, the Moon isĭivided into two basic physiographic regions, namely, smooth maria and cratered highlands,īoth studded with craters of varying sizes. Lunar photographic atlas was completed by dozens of orbiter probes as early as the 1960s The Moon is the only natural satellite of the Earth and has always been an object of
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