00000nam 2200000za 4500 9.858766 CaOODSP 20230131161138 cr ||||||||||| 180710s2018 oncad o f000 0 eng d CaOODSP eng n-cn--- M41-11/84-2018E-PDF Reflection seismology [electronic resource] : a very valuable method for environmental assessments / B. Dietiker ... [et al.]. [Ottawa] : Natural Resources Canada, 2018. [1] p. : col. charts, ill. (mostly col.) Scientific presentation ; 84 Issued also in French under title: La sismique réflexion : une précieuse méthode pour les évaluations environnementales. Caption title. "Presented at Doors Open Ottawa 2017. Date presented: June 2017." “As part of the 175th anniversary of the Geological Survey of Canada (GSC), staff of the Booth Street Complex in Ottawa participated in the Doors Open 2017 event. The near surface geophysics group showcased reflection seismology by explaining this geophysical method and displaying various tools like geophones, seismic sources and data recorders. This poster explains the different types of seismic waves, their type of movement in the subsurface and their use in creating images of the ground beneath our feet. Explanations are delivered with few words and many sketches. It is also described how the data recorded in the field are processed to create the seismic images, and one interpreted image of the subsurface is shown as the final product"--provided by publisher. Seismic reflection method Dietiker, Barbara. Canada. Natural Resources Canada. Geological Survey of Canada. La sismique réflexion (CaOODSP)9.858768 Scientific presentation (Geological Survey of Canada) 84. (CaOODSP)9.820265 PDF 8.21 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m41-11/M41-11-84-2018-eng.pdf 308256