Description of Map Units for the Geologic Map of the Virginia City Quadrangle, Nevada
نویسندگان
چکیده
Qs Sand Wind-blown sand blankets a number of areas in the western part of the quadrangle. These well-sorted, mediumto fine-grained quartzose sands are commonly deposited on the east to northeast sides of hills but may extend across some flat areas. The sands are uncemented and loose but most are well stabilized by vegetation, locally including trees. The sands are usually white to tan but locally may be reddish where some alluvial material is intercalated. The sands, which are locally as much as 15 m thick, are probably Pleistocene but may be Holocene in part. Rock outcrops in the vicinity of areas of sand are locally polished and grooved; the grooves indicate a northeast sand-transport direction.
منابع مشابه
Preliminary Geologic Map of the McTarnahan Hill Quadrangle, Douglas County, Nevada
The preliminary geologic map of the McTarnahan Hill quadrangle, first released in 1999 in PDF format, was originally drafted in Adobe Illustrator. This Second Edition (Revised 2009) was converted and modified slightly in ArcMap Version 9.3. The Quaternary unit descriptions were not significantly changed from the original map. Bedrock unit descriptions were modified and corrected, and sections w...
متن کامل1498 Big Bald Mt. text
The map area includes the Big Bald Mountain Quadrangle and the western part of Tognini Spring Quadrangle. It is located south of Overland Pass in the southern Ruby Mountains and the southern Maverick Springs Range, about 60 miles (100 km) south-southeast of Elko, Nevada, and about 50 miles (80 km) northwest of Ely, Nevada (figs. 1A, B). The map area, herein referred to as the Bald Mountain area...
متن کاملGeology 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...
متن کاملMethods for Production of Metallogenic-Prognostic Map of Red Karst Bauxite in the Region of Nikiãka upa,Montenegro (Europe)
Production of Metallogenic-prognostic map (MPM) was preceded by the preparation of instructions that define three phases of work: preparation (with preparation of the Project), realization of field and laboratory research and data processing with production of different maps and, finally, production of the prognostic map with the accompanying instruction book. During the Project realization, th...
متن کامل