Skip Links

USGS - science for a changing world

Scientific Investigations Map 3249

Prepared for the National Aeronautics and Space Administration

Geologic Map of the Lada Terra Quadrangle (V–56), Venus

By P. Senthil Kumar and James W. Head

Thumbnail of and link to report PDF (36.5 MB)Summary

This publication provides a geological map of Lada Terra quadrangle (V–56), a portion of the southern hemisphere of Venus that extends from lat 50° S. to 70° S. and from long 0° E. to 60° E. V–56 is bordered by Kaiwan Fluctus (V–44) and Agnesi (V–45) quadrangles in the north and by Mylitta Fluctus (V–61), Fredegonde (V–57), and Hurston (V–62) quadrangles in the west, east, and south, respectively. The geological map of V–56 quadrangle reveals evidence for tectonic, volcanic, and impact processes in Lada Terra in the form of tesserae, regional extensional belts, coronae, and volcanic plains. In addition, the map also shows relative age relations such as overlapping or cross-cutting relations between the mapped geologic units. The geology observed within this quadrangle addresses (1) how coronae evolved in association with regional extensional belts and (2) how tesserae, regional plains, and impact craters, which are also significant geological units observed in Lada Terra quadrangle, were formed.

First posted April 30, 2014

For additional information, contact:
Astrogeology Research Program staff
Astrogeology Science Center
U.S. Geological Survey
2255 N. Gemini Dr.
Flagstaff, AZ 86001

Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Kumar, P.S., and Head, J.W., 2013, Geologic map of the Lada Terra quadrangle (V–56), Venus: U.S. Geological Survey Scientific Investigations Map 3249, scale 1:5,000,000, 11 p.,

ISSN 2329-132X (online)

ISSN 2329-1311 (print)

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: GS Pubs Web Contact
Page Last Modified: Thursday, 16-Mar-2023 15:23:22 EDT