Correlation of the tangential stresses in the lithosphere of Venus with surface structures

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Sol. Syst. Res. (Engl. Transl.); (United States)

OSTI ID:5338925

Zharkov, V N; Marchenkov, K I

The stresses in the lithosphere of Venus have been calculated with allowance for the correlation of its gravitational field and topography. A correlation of the distribution of the maximum tangential stresses with the planet's topography has been discovered. The largest stresses act under Ishtar Terra in the region of Maxwell Montes (approx. 300 bar). Stresses from 100 to 150 bar act under Aphrodite Terra, where they are concentrated under Ovda Regio and Phetida Regio on the west and under Atla Regio on the east. Under the plains, the stresses vary within broad limits from approx. 100 to approx. 20 bar. It has been discovered that the stresses seep through from the lithosphere into the mantle under Beta Regio (Theia Mons), Atla Regio, and Tethus Regio, which is evidently connected with the youth of the indicated formations. The distribution of the maximum tangential stresses in the mantle of Venus has been investigated qualitatively for the second spherical harmonic (n = 2).

• Research Organization: O. Yu. Shmidt Institute of Earth Physics (USSR)
• OSTI ID: 5338925
• Journal Information: Sol. Syst. Res. (Engl. Transl.); (United States), Journal Name: Sol. Syst. Res. (Engl. Transl.); (United States) Vol. 21:2; ISSN SSYRA
• Country of Publication: United States
• Language: English

Related Subjects

640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GEOLOGIC FORMATIONS
GEOLOGIC MODELS
GEOLOGIC STRUCTURES
GRAVITATIONAL FIELDS
LITHOLOGY
PLANETARY EVOLUTION
PLANETS
SOLAR SYSTEM EVOLUTION
STRESS ANALYSIS
TECTONICS
TOPOGRAPHY
VENUS PLANET