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5 days ago · GeMS is intended to provide a stepping stone toward development of multimap databases, in particular the National Geologic Map Database (NGMDB). Please visit our GeMS site. Related, Older Database Designs. This list focuses on the work by USGS and AASG staff, ca. 1998-2010, to define conceptual data models and physical implementations, mostly ...
- Ncgmp09 GeneralLithology
GeMS ("Geologic Map Schema", formerly "NCGMP09") is the...
- Digital Mapping Techniques
In August, 1996, the AASG and USGS met in in St. Louis,...
- Ncgmp09 GeneralLithology
1 day ago · Geologic time scale. The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years. The geologic time scale or geological time scale ( GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating ...
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2 days ago · U.S. Department of the Interior | U.S. Geological Survey Supported by the National Cooperative Geologic Mapping Program Page Contact Information: Personnel Page Last Modified: Thu Apr 18 10:28:46 2024
- drsoller@usgs.gov
8 hours ago · The primary emphasis of this paper lies in the classification of rock images derived from grain-detected images. The uses Cellular Automata (CAs), a mathematical framework that has found applications in modeling dynamic systems across various domains, including geography, urban dynamics, environmental sciences, and geological applications.
2 days ago · Monthly time series (1984–2019) of (A) mean sea level for five regional NOAA Stations, (B) mean monthly significant wave height per wetland site, (C) mean stream discharge for 11 regional USGS gauges, (D) regional means of temperature (black) and precipitation (blue), (E) regional means of drought indices, and (F) regional means of climate indices.
1 day ago · Various statistical models and classification systems have been developed to predict penetration rate, but they often lack generalizability across different drilling conditions 18.
