DOI: 10.1029/2004je002307
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Abstract: [1] During their formation, impact craters on Venus larger than 11 km in diameter acquired parabolic features composed of air fall deposits that are radar-dark in Magellan synthetic aperture radar images. A model of the parabola planimetric shape and size (the latter being a function of crater diameter) was constructed from the data of Campbell et al. [1992]. Reconstructing model parabolas around all impact craters with D > 11 km in the regions of the Venera-Vega sites revealed that parabolas cover 80-90% of …

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