An Effusive Lunar Dome Near Fracastorius Crater: Spectral and Morphometric Properties

We examine a dome within the boundary between Fracastorius crater and Mare Nectaris. The has noticeable vent structure appears to be perpendicular wrinkle ridges in southern Nectaris basin. spectral signature of this dome, derived from Clementine UVVIS Chandrayaan-1 M3 reflectance data, revealed that low TiO2 content primarily basaltic material. Using altimeter we measured diameter 28.6 km, with height 241.5 m, flank slope 1°. Based on rheological modeling viscoelastic model presumed feeder dike, obtained magma viscosity 3.1 × 105 Pa s, an effusion rate 5.9 m3 s−1, duration multiple processes 4.15 years, rise speed 2.1 10−4 m s−1. From these measurements, estimate dike geometry have horizontal length 234 km width 11.8 m. A comparison other noted lunar domes similar morphometric properties reveal viscosities found near craters Mee, Milichius Petavius.