Search results
Results from the WOW.Com Content Network
A "quadrangle" is a topographic map produced by the United States Geological Survey (USGS) covering the United States. The maps are usually named after local physiographic features. The shorthand " quad " is also used, especially with the name of the map; for example, "the Ranger Creek, Texas quad".
On a standard quadrangle map, the neatlines are the meridians and parallels delimiting the quadrangle. [3] neck 1. A narrow stretch of land with water on each side, e.g. an isthmus or promontory. [4] 2. A narrow stretch of woodland or of ice. [4] 3. A high level pass, especially the narrowest part. [4] nehrung
The surface of the planet Mercury has been divided into fifteen quadrangles, designated H-1 to H-15 (the 'H' stands for Hermes, the Greek equivalent of Mercury). [1] The quadrangles are named for prominent surface features visible within each area. [1]
Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...
The interaction between basins, craters, and plains in this quadrangle provides important clues to geologic processes that have formed the morphology of the mercurian surface. [ 1 ] Several low- albedo features are evident in Earth-based views of the Michelangelo quadrangle, [ 2 ] but these features do not appear to correlate directly with any ...
The high obliquity of the images, the wide range in sun-elevation angles, and the complete transection of the quadrangle by the gap in coverage greatly hamper geologic mapping. Only in about 15 percent of the quadrangle, near the southeast corner, do data permit separation of units with the confidence possible in other quadrangles on Mercury.
Shaded relief map of the United States, showing 10 geological provinces. The richly textured landscape of the United States is a product of the dueling forces of plate tectonics, weathering and erosion.
[1] [2] [3] Its geologic history, therefore, records with considerable clarity some of the earliest and most violent events that took place in the inner Solar System. The Bach quadrangle is south of Discovery quadrangle. To the west is Michelangelo quadrangle, and to the east is Debussy quadrangle.