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首页> 外文期刊>Solar system research >The nature of terrains of different types on the surface of Venus and selection of potential landing sites for a descent probe of the Venera-D Mission
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The nature of terrains of different types on the surface of Venus and selection of potential landing sites for a descent probe of the Venera-D Mission

机译：金星表面上不同类型地形的性质以及为Venera-D任务的下降探测器选择潜在的着陆点

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We discuss a change in the resurfacing regimes of Venus and probable ways of forming the terrain types that make up the surface of the planet. The interpretation of the nature of the terrain types and their morphologic features allows us to characterize their scientific priority and the risk of landing on their surface to be estimated. From the scientific point of view, two terrain types are of special interest and represent easily achievable targets: the lower unit of regional plains and the smooth plains associated with impact craters. Regional plains are probably a melting from the upper fertile mantle. The material of smooth plains of impact origin is a well-mixed and representative sample of the Venusian crust. The lower unit of regional plains is the most widespread one on the surface of Venus, and it occurs within the boundaries of all of the precalculated approach trajectories of the lander. Smooth plains of impact origin are crossed by the approach trajectories precalculated for 2018 and 2026.
机译：我们讨论了金星表面重现形式的变化以及形成构成地球表面的地形类型的可能方式。对地形类型的性质及其形态特征的解释，使我们能够表征其科学优先级以及在其表面着陆的风险。从科学的角度来看，两种地形类型特别受关注，它们代表了易于实现的目标：区域平原的下部单元和与撞击坑相关的平滑平原。区域平原可能是上层肥沃地幔的融化。冲击起源的光滑平原的材料是维纳斯地壳的充分混合且具有代表性的样品。区域平原的下部单元是金星表面上分布最广的单元，它发生在着陆器所有预先计算的进场轨迹的边界内。冲击源的平滑平原与为2018年和2026年预先计算的进场轨迹交叉。

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