Geologic Map of the Helen Planitia Quadrangle (V-52), Venus
Scientific Investigations Map
3026
Prepared for the National Aeronautics and Space Administration
By: Ivan Lopez and Vicki L. Hansen
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Abstract
The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the Venusian atmosphere on October 12, 1994. Magellan Mission objectives included (1) improving the knowledge of the geological processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2) improving the knowledge of the geophysics of Venus by analysis of Venusian gravity.
The Helen Planitia quadrangle (V-52), located in the southern hemisphere of Venus between lat 25 deg S. and 50 deg S. and between long 240 deg E. and 270 deg E., covers approximately 8,000,000 km2. Regionally, the map area is located at the southern limit of an area of enhanced tectonomagmatic activity and extensional deformation, marked by a triangle that has highland apexes at Beta, Atla, and Themis Regiones (BAT anomaly) and is connected by the large extensional belts of Devana, Hecate, and Parga Chasmata. The BAT anomaly covers approximately 20 percent of the Venusian surface.
Suggested Citation
Lopez, I., and Hansen, V.L., 2008, Geologic Map of the Helen Planitia Quadrangle (V-52), Venus (Version 1.0): U.S. Geological Survey Scientific Investigations Map 3026, Report: ii, 22 p.; Plate: 56 x 35.5 inches, https://doi.org/10.3133/sim3026.
ISSN: 2329-132X (online)
ISSN: 2329-1311 (print)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geologic Map of the Helen Planitia Quadrangle (V-52), Venus |
| Series title | Scientific Investigations Map |
| Series number | 3026 |
| ISBN | 9781411322196 |
| DOI | 10.3133/sim3026 |
| Edition | Version 1.0 |
| Year Published | 2008 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Astrogeology Science Center |
| Description | Report: ii, 22 p.; Plate: 56 x 35.5 inches |
| Projection | Lambert |
| Scale | 0 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | Y |