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Surficial geologic map of the Evansville, Indiana, and Henderson, Kentucky, area Surficial geologic map of the Evansville, Indiana, and Henderson, Kentucky, area
The geologic map of the Evansville, Indiana, and Henderson, Kentucky, area depicts and describes surficial deposits according to their origin and age. Unconsolidated alluvium and outwash fill the Ohio River bedrock valley and attain maximum thickness of 33-39 m under Diamond Island, Kentucky, and Griffith Slough, south of Newburgh, Indiana. The fill is chiefly unconsolidated, fine- to...
Geologic Map of MTM -20012 and -25012 Quadrangles, Margaritifer Terra Region of Mars Geologic Map of MTM -20012 and -25012 Quadrangles, Margaritifer Terra Region of Mars
Mars Transverse Mercator (MTM) -20012 and -25012 quadrangles (lat 17.5 deg - 27.5 deg S., long 345 deg - 350 deg E.) cover a portion of Margaritifer Terra near the east end of Valles Marineris. The map area consists of a diverse assemblage of geologic surfaces including isolated knobs of rugged mountainous material, heavily cratered and dissected ancient highland material, a variety of...
Geologic Map of the Niobe Planitia Quadrangle (V-23), Venus Geologic Map of the Niobe Planitia Quadrangle (V-23), Venus
The Niobe Planitia quadrangle (V-23) encompasses approximately 8,000,000 km2 of the Venusian equatorial region extending from lat 0 deg to 25 deg N. and from long 90 deg to 120 deg E. (approximately 9,500 15-minute quadrangles on Earth). The map area lies along the north margin of the equatorial highland, Aphrodite Terra (V-35), and extends into the lowland region to the north...
Geologic map of the St. Joe quadrangle, Searcy and Marion Counties, Arkansas Geologic map of the St. Joe quadrangle, Searcy and Marion Counties, Arkansas
This map summarizes the geology of the St. Joe 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the St. Joe quadrangle lies within the Springfield Plateau, a topographic surface generally held up by Mississippian...
Geologic Map of the Estes Park 30' x 60' Quadrangle, North-Central Colorado Geologic Map of the Estes Park 30' x 60' Quadrangle, North-Central Colorado
The rocks and landforms of the Estes Park 30 x 60 minute quadrangle display an exceptionally complete record of geologic history in the northern Front Range of Colorado. The Proterozoic basement rocks exposed in the core of the range preserve evidence of Paleoproterozoic marine sedimentation, volcanism, and regional soft-sediment deformation, followed by regional folding and gradational
Geologic Map of the Yukon-Koyukuk Basin, Alaska Geologic Map of the Yukon-Koyukuk Basin, Alaska
This map and accompanying digital files represent part of a systematic effort to release geologic data for the United States in a uniform manner. All the geologic data in this series will be published as parts of the U.S. Geological Survey Data Series. The geologic data in this series have been compiled from a wide variety of sources, ranging from state and regional geologic maps to...