Fig. 1: Atla Regio study area.
From: Dyke swarms record the plume stage evolution of the Atla Regio superplume on Venus
a NASA Magellan SAR (synthetic aperture radar) image annotated with features discussed in the text. b Magellan topography data. c Bouguer gravity data76 with negative anomaly spatially associated with the four main centres of Atla Regio (pixel size 100 km, but with resolution size ranging from 170-540 km17,76. d location of Atla Regio and associated triple-junction rift arms in BAT (Beta-Atla-Themis) region. B Beta Regio, T Themis Regio, D Devana Chasma. Basemap, after77, in sinusoidal projection of Venus with rift zones (chasmata) in red, large volcanoes in green and coronae in yellow, and superimposed on geoid level (grey scale with value increasing from dark to light). NASA Magellan topographic data downloaded from from USGS Astrogeology Science Center (https://astrogeology.usgs.gov/search?pmi-target=venus).
