Global stratigraphy of Venus: analysis of a random

  title={Global stratigraphy of Venus: analysis of a random},
  author={Alexander T. Basilevsky and James W. Head},
  journal={Earth, Moon, and Planets},
The age relations between 36 impact craters with dark paraboloids and other geologic units and structures at these localities have been studied through photogeologic analysis of Magellan SAR images of the surface of Venus. Geologic settings in all 36 sites, about 1000 × 1000 km each, could be characterized using only 10 different terrain units and six types of structures. These units and structures form a major stratigraphic and geologic sequence (from oldest to youngest): 1) tessera terrain; 2… 
Sequential deformation of plains at the margins of Alpha Regio, Venus: Implications for tessera formation
Abstract— The boundaries between the highly deformed tessera terrain and adjacent volcanic plains are primarily those of embayment, where the tessera are stratigraphically older than the plains.
Geologic units on Venus: evidence for their global correlation
The geologic history of Venus: A stratigraphic view
On the basis of regional and global stratigraphic analyses, we outline the major events in the geologic history of Venus determined by photogeological study of surface features. Because the
The history of volcanism on Venus
Corona Associations and Their Implications for Venus
Abstract Geologic mapping principles were applied to determine genetic relations between coronae and surrounding geomorphologic features within two study areas in order to better understand venusian
Structural Analysis of a Sampling of Tesserae: Implications for Venus Geodynamics
Abstract Understanding the nature and timing of tessera formation is fundamental to Venus tectonic and geodynamic models. Tesserae are commonly considered to exhibit complex deformation histories, to
Geologic evolution of southern Rusalka Planitia, Venus
Geologic mapping of southern Rusalka Planitia, Venus, reveals interactions of volcanism, tectonism, and topography. We recognize three regional plains units (prR1, prR2, and prR3) based on
Stratigraphic and geographic distribution of steep‐sided domes on Venus: Preliminary results from regional geological mapping and implications for their origin
Analysis of the stratigraphic position of 44 steep-sided domes in a global band of C1-MIDRs at 30°N latitude shows that in a region representing over 11% of the surface of Venus, the vast majority of


Magellan observations of Alpha Regio: Implications for formation of complex ridged terrains on Venus
Magellan images of Alpha Regio reveal previously undetected structures and details of the morphology of this region of complex ridged terrain. We examine the complex ridged terrain of Alpha Regio,
Venus volcanism: Classification of volcanic features and structures, associations, and global distribution from Magellan data
A preliminary analysis of a global survey of Magellan data covering over 90% of the surface and designed to document the characteristics, location, and dimensions of all major volcanic features on
Although the origin and composition of many units are obscure or controversial, their interpretations are based on objective descriptions of morphologic characteristics visible on Viking photomosaics
Plains tectonism on Venus: The deformation belts of Lavinia Planitia
High-resolution radar images from the Magellan spacecraft have revealed the first details of the morphology of the Lavinia Planitia region of Venus. A number of geologic units can be distinguished,
Age of rifting and associated volcanism in Atla Regio, Venus
An estimation of the age of rifting and associated volcanism in Atla Regio is carried out based on photogeologic analyses of the stratigraphic relationships between rift-associated features and
The geology and geomorphology of the Venus surface as revealed by the radar images obtained by Veneras 15 and 16
A region-by-region condensed description of almost all of the area that was radar-photographed by Veneras 15 and 16 is presented. Using some generalizations, the diversity of terrain was reduced to a
Regional topographic rises on Venus: Geology of Western Eistla Regio and comparison to Beta Regio and Atla Regio
Regional topographic rises in the equatorial region of Venus (Western Eistla Regio, Beta Regio, and Atla Regio) form a unique class of structures which on the basis of geologic mapping and
Density and morphology of impact craters on Tessera Terrain, Venus
Densities of impact craters on tessera, which is complex ridged terrain of tectonic origin, and on the remainder of the planet, which is mostly volcanic plains, were studied using Magellan images for
Global Resurfacing of Venus
The impact cratering record on Venus is unique among the terrestrial planets. Fully 84% of the craters are in pristine condition, and only 12% are fractured. Remarkably, only 2.5% of the craters and
Impact craters and Venus resurfacing history
Venusian impact crater size-frequency distributions, locations, and preservation states were analyzed to reconstruct the history of resurfacing by tectonism and volcanism. An atmospheric transit