The Hepato‐Cystic Quadrangle of Ozobia

Geology of the Carrizozo Quadrangle, New Mexico

Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national s...

Geology of the Victoria quadrangle (H02), Mercury

Mercury’s quadrangle H02 ‘Victoria’ is located in the planet’s northern hemisphere and lies between latitudes 22.5° N and 65° N, and between longitudes 270° E and 360° E. This quadrangle covers 6.5% of the planet’s surface with a total area of almost 5 million km. Our 1:3,000,000-scale geologic map of the quadrangle was produced by photo-interpretation of remotely sensed orbital images captured...

Geological Mapping of the Fortuna Tessera Quadrangle

Introduction: The Fortuna Tessera quadrangle (V–2, Fig. 1) is in the northern hemisphere of Venus and extends from 50° to 75° N. and from 0° to 60° E. In a regional context, this territory represents a large region of tessera terrain [1] that includes the major portion of Fortuna Tessera in the northern half of the map area and Laima Tessera in the SE corner of the quadrangle. The tessera regio...

Bedrock Geology of Herod Quadrangle

Hexagon quadrangle systems

A hexagon quadrangle system of order n and index [HQS (n)] is a pair (X,H), where X is a finite set of n vertices and H is a collection of edge disjoint hexagon quadrangles (called blocks) which partitions the edge set of Kn, with vertex set X. A hexagon quadrangle system is said to be a 4-nesting [N(4) − HQS] if the collection of all the 4-cycles contained in the hexagon quadrangles is a /2-fo...