نتایج جستجو برای: geological
تعداد نتایج: 24790 فیلتر نتایج به سال:
The surface area of Venus ( 460 10 km) is 90% of that of the Earth. Using Magellan radar image and altimetry data, supplemented by Venera-15/16 radar images, we compiled a global geologic map of Venus at a scale of 1:10 M. We outline the history of geological mapping of the Earth and planets to illustrate the importance of utilizing the dual stratigraphic classification approach to geological m...
This paper describes a service-oriented architecture for accessing resources through semantically designed portals called hubs. The services are dedicated to: (a) ontology management, (b) annotation generation from texts based on linguistic or machine learning techniques, (c) persistent storage of ontologies and metadata, and (d) semantic search in annotation bases or ontological databases. The...
official positions of the Society. citizenship, gender, religion, or political viewpoint. Opinions presented in this publication do not reflect presentation of diverse opinions and positions by scientists worldwide, regardless of their race, includes a reference to the article's full citation. GSA provides this and other forums for the the abstracts only of their articles on their own or their ...
official positions of the Society. citizenship, gender, religion, or political viewpoint. Opinions presented in this publication do not reflect presentation of diverse opinions and positions by scientists worldwide, regardless of their race, includes a reference to the article's full citation. GSA provides this and other forums for the the abstracts only of their articles on their own or their ...
Recently published thermochronological and paleoelevation studies in the Grand Canyon region, combined with sedimentary provenance data in both the coastal and interior portions of the North American Cordillera, place important new constraints on the paleohydrological evolution of the southwestern United States. Review and synthesis of these data lead to an interpretation where incision of a la...
Cin-Ty Lee is a Renaissance man — the breadth of his interests is astonishing, not even considering his books, articles and paintings focused on birds. Cin-Ty is making a major impact in our understanding of how the Earth works; he has written on topics as diverse as the origin and evolution of the continents, the oxygen fugacity of the mantle through time, chemical fluxes between the solid Ear...
Communication in geology is characterized by very many expressions, used in texts and lectures. Among these, nonverbal terms are much more important than in other sciences. Informations rarely reflect pure facts, rather they are expressions and results of a complex process of knowledge formation. In a geologic map for example, the structure of symbols illustrates the process of knowledge transf...
We compare IGA to traditional numerical inversion on a geological application. We show that ‘a priori’ information and expert knowledge can overcome lack of accurate data and help convergence towards a satisfactory solution.
recently than others; Europa could experience current cryovolcanic and tectonic activity. Global-scale patterns of tectonic Images of Europa from the Galileo spacecraft show a surface features suggest deformation resulting from non-synchronous with a complex history involving tectonic deformation, impact rotation of Europa around Jupiter. Some regions of the lithocratering, and possible emplace...
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