Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Geologic/geomorphic map of the Galindo Quadrangle (V-40), Venus Geologic/geomorphic map of the Galindo Quadrangle (V-40), Venus
The Galindo quadrangle (V-40; centered at lat 12.5 degrees S., long 255 degrees) was geologically mapped at 1:5,000,000 scale under the Venus Data Analysis and Venus Geologic Mapping Programs as part of a project focused on the study of venusian geologic terrains containing assemblages of coronae, arachnoids, and novae; these are enigmatic circular features perhaps related to hot-spot...
Geologic/geomorphologic map of the Chryse Planitia region of Mars Geologic/geomorphologic map of the Chryse Planitia region of Mars
Since the 1970's, when the Mariner 9 spacecraft revealed the geologic diversity of Mars, the Chryse Planitia region has been noted for its immense outflow channels and chaotic terrain (McCauley and others, 1972; Sharp and Malin, 1975; Baker, 1982, chap. 3; Mars Channel Working Group, 1983). Various proposals for the origin of these features have been offered; most workers have favored a...
Map showing lava flows in the northeast part of the Amazonia Quadrangle of Mars Map showing lava flows in the northeast part of the Amazonia Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the northeast part of the Memnonia Quadrangle of Mars Map showing lava flows in the northeast part of the Memnonia Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the northeast part of the Phaethontis Quadrangle of Mars Map showing lava flows in the northeast part of the Phaethontis Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the northeast part of the Phoenicis Lacus Quadrangle of Mars Map showing lava flows in the northeast part of the Phoenicis Lacus Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the northeast part of the Tharsis Quadrangle of Mars Map showing lava flows in the northeast part of the Tharsis Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the northwest part of the Phoenicis Lacus Quadrangle of Mars Map showing lava flows in the northwest part of the Phoenicis Lacus Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the northwest part of the Tharsis Quadrangle of Mars Map showing lava flows in the northwest part of the Tharsis Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the northwest part of the Thaumasia Quadrangle of Mars Map showing lava flows in the northwest part of the Thaumasia Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the southeast part of the Diacria Quadrangle of Mars Map showing lava flows in the southeast part of the Diacria Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...
Map showing lava flows in the southeast part of the Memnonia Quadrangle of Mars Map showing lava flows in the southeast part of the Memnonia Quadrangle of Mars
The Systematic mapping of lava flow units in the Tharsis region has been compiled into a series of 16 maps at 1:2,000,000 scale. This work provides information on the sources and areal extent of the lava flows, on their eruptive sequences and relative ages, and on relations between the flows and geologic structure in the largest, most active tectonic and volcanic province on Mars. Some...