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Geologic map of the Mare Tyrrhenum Quadrangle of Mars Geologic map of the Mare Tyrrhenum Quadrangle of Mars
The Mare Tyrrhenum quadrangle is bound by lat 0˚ and 30˚ S and long 225˚ W. and 270˚ W. The central part of the quadrangle is dominated by Tyrrhena Patera, a large shield volcano, and associated low-albedo ridged plains that probably are basaltic lava flows similar to the lunar maria. The western, northern, and eastern margins of the quadrangle are located in cratered terrains of higher...
Geologic map of the New Windsor Quadrangle, Carroll County, Maryland Geologic map of the New Windsor Quadrangle, Carroll County, Maryland
The pattern of rock units in the geologic map of the New Windsor quadrangle has been affected by three distinguishable generations of folds; following the usage of Tobisch and Fleuty (1969) and Higgins (1973), the fold generations are named for localities where they are well displayed.