نتایج جستجو برای: geological method

تعداد نتایج: 1651162  

2009
Catherine Truffert

According to EuroGeoSurveys, the European Geological Surveys association, “Geological spatial data and models describe the solid Earth’s surface and subsurface on-shore and off-shore, its nature, structure, properties, dynamics and evolution over time; including its related (geo)resources and (geo) hazards”. This illustrates a modern vision of the core mission that National Geological Surveys h...

Journal: :Radioisotopes 1980
M Ayabe Y Hirao K Kimura

Ruthenium, silver, rhenium, osmium, iridium, platinum and gold in standard rock samples from Geological Survey of Japan (JB-1, JB-2, JG-1 and JA-1) were determined by thermal neutron activation method with a systematic chemical separation. U.S. Geological Survey standard rocks (BCR-1 and G-2) were also analyzed to obtain an information about the accuracy and precision on the method. Generally a...

2011
Zhou You Wenkuan Chen

Sustainable ecological tourism is the ultimate goal of ecological tourism. To realize the sustainable development of ecological tourism it is a thorny problem. This paper takes the world geological park in Xinwen for evaluation object, according to the sustainable development of ecological tourism evaluation model, using analytic hierarchy process, expert evaluation method, the multi-objective ...

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