NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Geological Map of the Fredegonde (V-57) Quadrangle, VenusThe area of V-57, the Fredegonde quadrangle (50-75degS, 60-120degE, Fig.1), is located within the eastern portion of Lada Terra within the topographic province of midlands (0-2 km above MPR [1,2]). Midlands form the most abundant portion of the surface of Venus and are characterized by diverse sets of units and structures [3-11]. The area of the Fredegonde quadrangle is in contact with the elevated portion of Lada Terra to the W and with the lowland of Aino Planitia to the NE. The transitions of the mid-lands to the lowlands and highlands are, thus, one of the main themes of the geology within the V-57 quadrangle. The character of the transitions and distribution and sequence of units/structures in the midlands are crucially important in understanding the time and modes of formation of this topographic province. The most prominent features in the map area are linear deformational zones consisting of swarms of grooves and graben and large coronae. The zones characterize the central and NW portions of the map area and represent regionally important, broad (up to 100s km wide) ridges that are 100s m high. Relatively small (100s km across, 100s m deep) equidimensional basins occur between the corona-groove-chains in the west and border the central chain from the east. Here we describe units that make up the surface within the V-57 quadrangle and present a summary of our geological map that shows the areal distribution of the major groups of units.
Document ID
20100017214
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Ivanov, M. A. (Academy of Sciences (Russia) Moscow, Russian Federation)
Head, J. W. (Brown Univ. Providence, RI, United States)
Date Acquired
August 24, 2013
Publication Date
June 1, 2009
Publication Information
Publication: Abstracts of the Annual Meeting of Planetary Geologic Mappers, San Antonio, TX, 2009
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

IDRelationTitle20100017196Collected WorksAbstracts of the Annual Meeting of Planetary Geologic Mappers, San Antonio, TX, 2009
No Preview Available