U.S. Geological Survey 
Scientific Investigations Map 3121 (SIM-3121)

Geologic Map of the Ganiki Planitia Quadrangle (V?14), 
Venus

Suggested citation:

Grosfils, E.B., Long, S.M., Venechuk, E.M., Hurwitz, D.M., 
Richards, J.W., Kastl, Brian, Drury, D.E., and Hardin, 
Johanna, 2011, Geologic map of the Ganiki Planitia 
quadrangle (V-14), Venus: U.S. Geological Survey Scientific 
Investigations Map 3121 [http://pubs.usgs.gov/sim/3121/].

Abstract: 

The Ganiki Planitia (V-14) quadrangle on Venus, which 
extends from 25 degrees N. to 50 degrees N. and from 180 
degrees E. to 210 degrees E., derives its name from the 
extensive suite of plains that dominates the geology of the 
northern part of the region. With a surface area of nearly 
6.5 x million square kilometers (roughly two-thirds that of 
the United States), the quadrangle is located northwest of 
the Beta-Atla-Themis volcanic zone and southeast of the 
Atalanta Planitia lowlands, areas proposed to be the result 
of large scale mantle upwelling and downwelling, 
respectively. The region immediately south of Ganiki 
Planitia is dominated by Atla Regio, a major volcanic rise 
beneath which localized upwelling appears to be ongoing, 
whereas the area just to the north is dominated by the 
orderly system of north-trending deformation belts that 
characterize Vinmara Planitia. The Ganiki Planitia 
quadrangle thus lies at the intersection between several 
physiographic regions where extensive mantle flow-induced 
tectonic and volcanic processes are thought to have 
occurred.

For more: please see published map and text at 
http://pubs.usgs.gov/sim/3121/ (PDF format).

ArcMap/ArcReader Projects: V14_GANIKI_v93.mxd, 
V14_GANIKI_v93.pmf

GIS Formats:

ESRI File Geodatabase 9.3 (under directory 
"ESRI_FileGeodatabase\") or
ESRI Shapefile Format (under directory "ESRI_Shapefiles\")
Note: Metadata for main geologic layers available in the 
"Metadata\" directory.

USGS BaseMap (base image, available in "Raster\" 
directory): 
Magellan SAR, file: Backscatter_Adj_V14.png (PNG and Erdas 
IMG format)

-RADAR Properties (Lambert CC):

*     Global Emissivity Data Record (GEDR), file: 
        GEDR_V14.img
*     Global Slope Data Record (GSDR), file: GREDR_V14.img
*     Global Topographic Data Record (GTDR), file: 
        GSDR_V14.img
*     Global Reflectivity Data Record (GREDR), file: 
        GTDR_V14.img

V14 Projection: 

Projection: Lambert_Conformal_Conic
false_easting: 0.000000
false_northing: 0.000000
central_meridian: 195.000000
standard_parallel_1: 34.000000
standard_parallel_2: 73.000000
latitude_of_origin: 90.000000
Linear Unit: Meter (1.000000)
GCS_Venus_1985: Semimajor/minor Axis: 6051000.0